Air energy water heater

Abstract

The application relates to the technical field of heating devices, and discloses an air energy water heater, which comprises a rack, a heating box arranged in the rack, a heating assembly comprising a heater, a compressor, an evaporator and a throttle valve which are connected with each other through pipelines, the heater being arranged in the heating box, and a water storage tank which is provided with a hot water inlet pipe and a hot water outlet pipe at the top, is provided with a cold water joint and a cold water outlet pipe at the bottom, and is connected with the heating box through the hot water inlet pipe and the cold water outlet pipe respectively. The water in the water storage tank can be sent into the heating box in batches to heat the water, and then is sent back into the water storage tank, so that the water temperature in the water storage tank can be better maintained, the working energy consumption is reduced, and the heating efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating device, in particular to an air energy water heater. BACKGROUND

[0002] The air energy water heater absorbs heat from outdoor air, heats refrigerant and makes it evaporate, and the refrigerant vapor is compressed by the compressor to enter the heat exchanger, and the heat exchanger releases heat in the water tank to heat the water in the water tank. The water tank is usually a simple cylindrical tank, and the water inlet is usually arranged at the lower part and the water outlet is arranged at the upper part. When the user uses hot water, the hot water flows out from the top, and the cold water is supplemented from the bottom. When the cold water enters the bottom of the water tank at a certain flow rate and pressure, it will quickly mix with the hot water in the water tank that has been heated, which will cause the overall water temperature to decrease and the outlet water temperature to drop sharply. At this time, the heat exchanger is used to heat the water in the entire water tank, and the heating efficiency of the hot water in the water tank is low. Therefore, there is an urgent need for an air energy water heater that can better improve the heating efficiency. SUMMARY

[0003] The present application aims to provide an air energy water heater to solve one or more technical problems in the prior art, at least to provide a beneficial choice or create conditions.

[0004] The solution to the technical problem of the present application is:

[0005] An air energy water heater, comprising: a rack; a heating tank arranged in the rack; a heating assembly comprising a heater, a compressor, an evaporator and a throttle valve connected to each other by pipelines, the heater being arranged in the heating tank; a water storage tank, the top of which is provided with a hot water inlet pipe and a hot water outlet pipe, the bottom of the water storage tank is provided with a cold water joint and a cold water outlet pipe, and the hot water inlet pipe and the cold water outlet pipe are respectively connected to the heating tank.

[0006] The technical scheme has at least the following beneficial effects: the heater, the compressor, the evaporator and the throttle valve are connected with each other through pipelines to form a circulating loop of refrigerant flow, when the refrigerant reaches the heater, heat is released in the heating tank to heat the water in the heating tank, when the temperature reaches the set temperature, the water in the heating tank enters the water storage tank through the hot water inlet pipe, and the water in the water storage tank is stored as hot water, when the hot water is needed, the hot water can be outputted from the hot water outlet pipe, and the external water supply pipe can be connected to the cold water joint to supply cold water into the water storage tank, at this time, the temperature of the water in the water storage tank is lowered, and the water in the water storage tank can be inputted into the heating tank from the cold water outlet pipe, and the water in the heating tank is heated rapidly to the required temperature and then sent back to the water storage tank, so that the water in the water storage tank is repeatedly heated and sent back, the water temperature in the water storage tank is better maintained, the working energy consumption is reduced, and the heating efficiency is improved.

[0007] As a further improvement of the above technical scheme, the water storage tank is internally provided with a floating plate which can move up and down, the floating plate divides the interior of the water storage tank into a hot water cavity and a cold water cavity in the up-down direction, the hot water inlet pipe and the hot water outlet pipe are respectively connected to the hot water cavity, and the cold water joint and the cold water outlet pipe are respectively connected to the cold water cavity. The floating plate can divide the space in the water storage tank into a hot water cavity and a cold water cavity, effectively reducing the up-down convection and mixing of the water flow in the water storage tank, and when in use, the hot water cavity stores hot water, and the incoming cold water is stored in the cold water cavity, when the hot water is outputted and the cold water is supplemented, the floating plate moves upward, at this time, the hot water cavity decreases and the cold water cavity increases; when the hot water is inputted and the cold water is stopped, the floating plate moves downward, at this time, the hot water cavity increases and the cold water cavity decreases, so that a dynamic up-down stratification is formed in the water storage cavity, effectively reducing the phenomenon that the cold and hot water directly mix when the cold water is inputted, better ensuring the consistency of the output water temperature, and inputting the cold water into the heating tank for heat exchange and temperature rise, which is beneficial to improve the heating efficiency.

[0008] As a further improvement of the above technical scheme, the top side of the floating plate is connected with the inner top side of the water storage tank through an extension pipe which can be extended and retracted in the up-down direction. The extension pipe can stabilize the position of the floating plate, when the floating plate moves upward, the extension pipe shortens, and when the floating plate moves downward, the extension pipe lengthens, effectively avoiding the situation that the floating plate is turned over.

[0009] As a further improvement of the above technical solution, the hot water inlet pipe is connected to the top end of the telescopic pipe, a water passage is arranged in the floating plate corresponding to the position of the telescopic pipe, a water inlet is arranged on the top side of the floating plate corresponding to one end of the water passage, and a water outlet is arranged on the other end of the floating plate corresponding to the water passage, and the bottom end of the telescopic pipe is connected to the water inlet. When the hot water inlet pipe inputs hot water into the water storage tank, the hot water is input into the water passage of the floating plate through the telescopic pipe, and then is input into the hot water cavity through the water outlet at the other end of the water passage. In this way, the hot water inlet position and the hot water outlet position form a height difference in the hot water cavity, which is beneficial to enhancing the flowability of the hot water in the hot water cavity, thereby maintaining the consistency of the hot water temperature and preventing the hot water from being directly discharged from the hot water outlet pipe into the water storage cavity.

[0010] As a further improvement of the above technical solution, the rack is provided with a shunt pipe, the shunt pipe is arranged in a direction perpendicular to the central axis of the water storage tank, the telescopic pipes are arranged on both sides of the central axis of the water storage tank, the top ends of the two telescopic pipes are connected to the shunt pipe, and the hot water inlet pipe is connected to the shunt pipe between the two telescopic pipes. After the hot water enters the shunt pipe on the top side of the water storage tank from the hot water inlet pipe, it flows along the shunt pipe around the central axis of the water storage tank and flows into the telescopic pipes on both sides. The hot water enters the water passage of the floating plate from the two telescopic pipes. In this way, the water outlet position on the floating plate can be improved, and the floating plate is connected by the two telescopic pipes, further improving the stability of the upward and downward movement of the floating plate.

[0011] As a further improvement of the above technical solution, the top side of the water storage tank is provided with two upwardly protruding accommodation grooves corresponding to the positions of the two telescopic pipes, the two accommodation grooves are connected to the shunt pipe, the top ends of the two telescopic pipes are connected to the two accommodation grooves, and the two telescopic pipes can be respectively contracted and entered into the two accommodation grooves. The top side of the water storage tank is upwardly protruded to accommodate the telescopic pipes. When the floating plate moves upwardly to the position close to the top side of the water storage tank, the telescopic pipes are in a contracted state and enter into the accommodation grooves. In this way, it is beneficial to discharge the hot water in the hot water cavity and improve the use rate of the hot water discharge.

[0012] As a further improvement of the above technical solution, the outer side of the floating plate is provided with an elastic baffle, the elastic baffle extends around the floating plate, and the outer side of the elastic baffle abuts against the inner side of the water storage tank and elastically deforms. The outer side of the elastic baffle abuts against the water storage tank, which can better separate the space inside the water storage tank into upper and lower parts, further reducing the mutual mixing of hot water and cold water, and the contact between the elastic baffle and the inner side of the water storage tank can stabilize the position of the floating plate, further improving the stability of the upward and downward movement of the floating plate.

[0013] As a further improvement of the above technical solution, the bottom side of the water storage tank is provided with a flow guide cover, the top side of the flow guide cover is provided with a flow guide opening, the inside of the flow guide cover is surrounded to form a space that gradually decreases from bottom to top, and the cold water connector is connected to the inside of the flow guide cover. The water from the cold water connector is input into the flow guide cover, and the space surrounded by the flow guide cover guides the water entering the cold water cavity, so that the water discharged upward from the flow guide cover is opposite to the middle position of the floating plate, providing a stable upward thrust to the floating plate, reducing the case that the water flows into the hot water cavity from the side of the floating plate.

[0014] As a further improvement of the above technical solution, the density of the floating plate is between 0.95 g / cm³ and 1.05 g / cm³. The floating plate with the density in this range is close to the density of water, so that the floating plate can be stably located at the thermocline position where the cold water and the hot water meet.

[0015] As a further improvement of the above technical solution, at least one travel sensor is arranged inside the water storage tank. The travel sensor can detect whether the floating plate reaches the set position of the water storage tank, so as to control whether to use the heater to heat the water in the heating tank. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly described below. Obviously, the described drawings are only part of the embodiments of the present application, and other design schemes and drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0017] Figure 1 is a schematic diagram of the overall structure of the present application.

[0018] Figure 2 is Figure 1 A-A cross-sectional structure schematic diagram of

[0019] In the drawings: 1- rack, 2- heating tank, 31- compressor, 4- water storage tank, 411- hot water inlet pipe, 412- hot water outlet pipe, 413- cold water connector, 414- cold water outlet pipe, 421- floating plate, 422- hot water cavity, 423- cold water cavity, 424- water passage, 425- water inlet, 426- elastic baffle, 43- telescopic pipe, 44- shunt pipe, 45- accommodating groove, 46- flow guide cover, 461- flow guide opening. DETAILED DESCRIPTION

[0020] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and drawings, so as to fully understand the purposes, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application. In addition, all the connection relationships mentioned in the text do not mean that the components are directly connected, but that a better connection structure can be formed by adding or reducing connecting accessories according to the specific implementation. The technical features in the present application can be combined interactively without conflict.

[0021] Referring to Figure 1 With Figure 2 An air energy water heater, comprising: a rack 1; a heating box 2 arranged in the rack 1; a heating assembly comprising a heater, a compressor 31, an evaporator and a throttle valve connected to each other through pipelines, the heater being arranged in the heating box 2; a water storage tank 4, the top of which is provided with a hot water inlet pipe 411 and a hot water outlet pipe 412, the bottom of the water storage tank 4 is provided with a cold water joint 413 and a cold water outlet pipe 414, the hot water inlet pipe 411 and the cold water outlet pipe 414 are connected to the heating box 2 respectively.

[0022] In this air energy water heater, the heater, the compressor 31, the evaporator and the throttle valve are connected to each other through pipelines to form a circulating loop of refrigerant flow. When the refrigerant reaches the heater, heat is released inside the heating box 2 to heat the water inside the heating box 2. When the set temperature is reached, the water in the heating box 2 enters the water storage tank 4 from the hot water inlet pipe 411, and the hot water is stored in the water storage tank 4. When hot water is needed, it can be outputted from the hot water outlet pipe 412, and the external water supply pipe can be connected to the cold water joint 413 to supply cold water into the water storage tank 4. At this time, the temperature of the water inside the water storage tank 4 will decrease, and the water in the water storage tank 4 can be inputted into the heating box 2 from the cold water outlet pipe 414, heated quickly in the heating box 2 to reach the required temperature, and then sent back to the water storage tank 4. In this way, the water in the water storage tank 4 is heated by being sent into the heating box 2 in small amounts, and then sent back to the water storage tank 4, so as to better maintain the temperature of the water inside the water storage tank 4 and reduce the working energy consumption and improve the heating efficiency.

[0023] In order to effectively prevent the mixing of cold and hot water when water is input, to keep the stable stratification of water temperature in the water tank, and to improve the effective hot water capacity, in the embodiment, a floating plate 421 is arranged inside the water storage tank 4 and can move up and down. The floating plate 421 divides the inside of the water storage tank 4 into a hot water cavity 422 and a cold water cavity 423 along the up-down direction. The hot water inlet pipe 411 and the hot water outlet pipe 412 are connected to the hot water cavity 422 respectively. The cold water joint 413 and the cold water outlet pipe 414 are connected to the cold water cavity 423 respectively. The floating plate 421 can divide the space inside the water storage tank 4 into the hot water cavity 422 and the cold water cavity 423, which can effectively reduce the up-down convection and mixing of water in the water storage tank 4. When in use, hot water is stored in the hot water cavity 422, and the incoming cold water is stored in the cold water cavity 423. When hot water is output and cold water is input, the floating plate 421 moves upward, and at this time, the hot water cavity 422 decreases and the cold water cavity 423 increases. When hot water is input and cold water is stopped, the floating plate 421 moves downward, and at this time, the hot water cavity 422 increases and the cold water cavity 423 decreases. In this way, a dynamic up-down stratification can be formed in the water storage cavity, which can effectively reduce the phenomenon of direct mixing of cold and hot water when cold water is input, better ensure the consistency of the output water temperature, and input cold water to the heating tank 2 for heat exchange and temperature rise, which is conducive to improving the heating efficiency.

[0024] In order to keep the stability of the floating plate 421 in the water storage tank 4, in the embodiment, a telescopic pipe 43 is connected between the top side of the floating plate 421 and the top side of the water storage tank 4, and the telescopic pipe 43 can stretch and contract along the up-down direction. The telescopic pipe 43 can stabilize the position of the floating plate 421. When the floating plate 421 moves upward, the telescopic pipe 43 shortens, and when the floating plate 421 moves downward, the telescopic pipe 43 lengthens, which can effectively avoid the overturning of the floating plate 421.

[0025] In the above embodiment, hot water directly enters from the top of the water storage tank 4, and is directly discharged from the hot water outlet pipe 412. The temperature distribution inside the hot water cavity 422 is not uniform. Therefore, in order to improve the uniformity of the temperature inside the hot water cavity 422, in the present embodiment, the hot water inlet pipe 411 is connected to the top end of the telescopic pipe 43. The water passage 424 is arranged in the floating plate 421 corresponding to the position of the telescopic pipe 43. The water inlet 425 is arranged on the top side of the floating plate 421 corresponding to one end of the water passage 424. The water outlet is arranged on the other end of the water passage 424. The bottom end of the telescopic pipe 43 is connected to the water inlet 425. When the hot water inlet pipe 411 inputs hot water into the water storage tank 4, the hot water is input into the water passage 424 of the floating plate 421 through the telescopic pipe 43, and is input into the hot water cavity 422 through the water outlet at the other end of the water passage 424. In this way, the hot water inlet position and the hot water outlet position form a height difference in the hot water cavity 422, which is beneficial to enhance the flowability of the hot water in the hot water cavity 422, thereby maintaining the consistency of the hot water temperature, and preventing the hot water from being directly discharged from the hot water outlet pipe 412 into the water storage cavity.

[0026] Further, the rack 1 is provided with a flow dividing pipe 44, which extends in a direction perpendicular to the central axis of the water storage tank 4. The telescopic pipes 43 are arranged on both sides of the central axis of the water storage tank 4. The top ends of the two telescopic pipes 43 are connected to the flow dividing pipe 44. The hot water inlet pipe 411 is connected to the position of the flow dividing pipe 44 between the two telescopic pipes 43. After the hot water enters the flow dividing pipe 44 at the top side of the water storage tank 4 from the hot water inlet pipe 411, it flows around the central axis of the water storage tank 4 along the flow dividing pipe 44, and flows into the telescopic pipes 43 on both sides. The hot water enters the water passage 424 of the floating plate 421 from the two telescopic pipes 43. In this way, the water outlet position on the floating plate 421 is improved, and the floating plate 421 is connected by the two telescopic pipes 43, which further improves the stability of the upward and downward movement of the floating plate 421.

[0027] In some embodiments, the top side of the water storage tank 4 is provided with two upwardly protruding accommodation grooves 45 corresponding to the positions of the two telescopic pipes 43. The two accommodation grooves 45 are connected to the flow dividing pipe 44. The top ends of the two telescopic pipes 43 are connected to the two accommodation grooves 45, respectively. The two telescopic pipes 43 can be retracted into the two accommodation grooves 45, respectively. The top side of the water storage tank 4 is upwardly protruding, and has space for accommodating the telescopic pipes 43. When the floating plate 421 moves upwardly to a position close to the top side of the water storage tank 4, the telescopic pipes 43 are in a retracted state and enter the accommodation grooves 45. In this way, it is beneficial to discharge the hot water in the hot water cavity 422, and improve the usage rate of the hot water discharge.

[0028] In order to ensure that the floating plate 421 can move up and down in the water storage tank 4, there is a gap between the outer side of the floating plate 421 and the inner side of the water storage tank 4, which provides a space for heat exchange between hot water and cold water. In order to reduce the heat exchange between hot water and cold water, in the embodiment, the outer side of the floating plate 421 is provided with an elastic baffle 426, which extends around the floating plate 421, and the outer side of the elastic baffle 426 abuts against the inner side of the water storage tank 4 and elastically deforms. The outer side of the elastic baffle 426 abuts against the water storage tank 4, which can better separate the space inside the water storage tank 4 vertically, further reducing the mixing of hot water and cold water, and the contact between the elastic baffle and the inner side of the water storage tank 4 can stabilize the position of the floating plate 421, further improving the stability of the floating plate 421 moving up and down.

[0029] In order to improve the stability of the floating plate 421 moving in the water storage tank 4, in the embodiment, the bottom side of the water storage tank 4 is provided with a flow guide cover 46, the top side of the flow guide cover 46 is provided with a flow guide opening 461, and the inside of the flow guide cover 46 is surrounded by a space that gradually decreases from bottom to top, and the cold water connector 413 is connected to the inside of the flow guide cover 46. The water from outside is input into the flow guide cover 46, and the space surrounded by the flow guide cover 46 guides the water entering the cold water cavity 423, so that the water discharged upward from the flow guide cover 46 is opposite to the middle position of the floating plate 421, providing a stable upward thrust to the floating plate 421, reducing the situation that water flows from the side of the floating plate 421 into the hot water cavity 422.

[0030] In order to better maintain the neutral buoyancy of the floating plate 421 in water, in the embodiment, the density of the floating plate 421 is between 0.95 g / cm³ and 1.05 g / cm³. The floating plate 421 with the density in this range is close to the density of water, so that the floating plate 421 can be stably located at the thermocline position where cold water and hot water meet.

[0031] In some embodiments, at least one travel sensor is arranged on the inner side of the water storage tank 4. The travel sensor can detect whether the floating plate 421 reaches the set position of the water storage tank 4, so as to control whether to use the heater to heat the water in the heating tank 2.

[0032] The preferred embodiments of the application are described above, but the application is not limited to the embodiments described above. Those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. An air source heat pump water heater, characterized in that: include: Rack (1); A heating box (2) is disposed inside the frame (1); The heating assembly includes a heater, a compressor (31), an evaporator and a throttle valve connected to each other by pipes, the heater being disposed inside the heating box (2); A water storage tank (4) has a hot water inlet pipe (411) and a hot water outlet pipe (412) at its top, and a cold water connector (413) and a cold water outlet pipe (414) at its bottom. The hot water inlet pipe (411) and the cold water outlet pipe (414) are respectively connected to the heating box (2). The water storage tank (4) has a float plate (421) that can move up and down inside. The float plate (421) divides the interior of the water storage tank (4) into a hot water chamber (422) and a cold water chamber (423) along the vertical direction. The hot water inlet pipe (411) and the cold water outlet pipe (412) are connected to the heating box (2). Water pipes (412) are connected to the hot water chamber (422), and cold water connectors (413) and cold water outlet pipes (414) are connected to the cold water chamber (423). A telescopic pipe (43) is connected between the top side of the float plate (421) and the top side of the water storage tank (4). The telescopic pipe (43) can extend and retract in the vertical direction. The hot water inlet pipe (411) is connected to the top of the telescopic pipe (43). A water channel (424) is provided in the float plate (421) corresponding to the position of the telescopic pipe (43). The top side of the float plate (421) corresponds to the position of the telescopic pipe (43). One end of the water channel (424) is provided with an inlet (425), and the float (421) is provided with an outlet at the other end of the water channel (424). The bottom end of the telescopic pipe (43) is connected to the inlet (425). A diversion pipe (44) is provided on the frame (1). The diversion pipe (44) extends along a direction perpendicular to the central axis of the water storage tank (4). The telescopic pipe (43) is provided on both sides of the central axis of the water storage tank (4). The top of the two telescopic pipes (43) The ends are respectively connected to the diversion pipe (44), and the hot water inlet pipe (411) is connected to the diversion pipe (44) at the position between the two telescopic pipes (43); the top side of the water storage tank (4) is provided with upward protruding receiving grooves (45) corresponding to the positions of the two telescopic pipes (43), the two receiving grooves (45) are respectively connected to the diversion pipe (44), and the top ends of the two telescopic pipes (43) are respectively connected to the two receiving grooves (45). The two telescopic pipes (43) can retract and enter the two receiving grooves (45) respectively.

2. An air source heat pump water heater according to claim 1, characterized in that: An elastic baffle (426) is provided on the outer side of the float (421). The elastic baffle (426) extends around the float (421) and the outer side of the elastic baffle (426) abuts against the inner side of the water storage tank (4) and deforms elastically.

3. An air source heat pump water heater according to claim 1, characterized in that: The water storage tank (4) is provided with a flow guide hood (46) on the bottom side, and a flow guide port (461) is provided on the top side of the flow guide hood (46). The interior of the flow guide hood (46) is enclosed to form a space that gradually decreases in size from bottom to top. The cold water connector (413) is connected to the inside of the flow guide hood (46).

4. An air source heat pump water heater according to claim 1, characterized in that: The density of the float (421) is between 0.95 g / cm³ and 1.05 g / cm³.

5. An air source heat pump water heater according to claim 1, characterized in that: At least one travel sensor is provided inside the water storage tank (4).

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