CN214746484U - Air energy water heater - Google Patents
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- CN214746484U CN214746484U CN202120612199.9U CN202120612199U CN214746484U CN 214746484 U CN214746484 U CN 214746484U CN 202120612199 U CN202120612199 U CN 202120612199U CN 214746484 U CN214746484 U CN 214746484U
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Abstract
The utility model relates to an air can water heater, including refrigerant circulation system, water tank and first ooff valve, refrigerant circulation system's first heat exchanger is including the heat exchanger A and the heat exchanger B of establishing ties, the delivery port of water tank is located the last water storage portion of water tank, heat exchanger A with the last water storage portion of water tank corresponds arranges, heat exchanger B with the lower water storage portion of water tank corresponds arranges, parallel connection has first parallel pipeline between two refrigerant mouths of heat exchanger B, first ooff valve is used for control the break-make of first parallel pipeline. When hot water needs to be obtained quickly, the first switch valve is opened, so that the refrigerant in the refrigerant circulating system mainly exchanges heat with the water storage part on the water tank through the heat exchanger A, water in the water storage part on the water tank is heated quickly, and the hot water supply rate is improved.
Description
Technical Field
The utility model relates to a water heater technical field especially wades the air and can the water heater.
Background
The air energy water heater is a water heater which utilizes a medium to exchange heat and improve the water temperature so as to supply water for users. Specifically, the air energy water heater mainly comprises a water tank and a refrigerant circulating system consisting of four refrigeration parts, wherein a condenser in the refrigerant circulating system is in contact with the water tank to exchange heat, so that water in the water tank is heated. Therefore, the air energy water heater can effectively avoid the electric leakage, the utilization efficiency is high, and resources are saved. However, when the water storage amount of the water tank is large, a time required for heating the water in the entire water tank is long, and thus there is a problem that the supply of hot water is not rapid enough.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the not rapid enough problem of air ability water heater hot water supply, provided an air ability water heater, can improve the efficiency of hot water supply.
The utility model provides an air can water heater, includes refrigerant circulation system, water tank, first ooff valve and first parallelly connected pipeline, refrigerant circulation system's first heat exchanger is including heat exchanger A and the heat exchanger B of establishing ties, the delivery port of water tank is located the last water storage portion of water tank, heat exchanger A sets up the last water storage portion of water tank, heat exchanger B sets up the lower water storage portion of water tank, first parallelly connected pipeline with heat exchanger B is parallelly connected, first ooff valve is used for controlling the break-make of first parallelly connected pipeline.
According to the scheme, the air energy water heater is provided, through the arrangement of the first parallel pipeline connected with the heat exchanger B corresponding to the lower water storage part of the water tank in parallel, when hot water needs to be obtained quickly, the first switch valve is opened, so that a refrigerant in the refrigerant circulating system mainly passes through the heat exchanger A and the upper water storage part of the water tank to exchange heat, water in the upper water storage part of the water tank is quickly heated, and the hot water supply rate is improved. In the conventional heating process, the first switch valve is closed, and a refrigerant sequentially passes through the heat exchanger A and the heat exchanger B and exchanges heat with the upper water storage part and the lower water storage part of the water tank.
In one embodiment, the first switching valve includes a solenoid valve provided on the first parallel line.
In one embodiment, the refrigerant circulation system further comprises a three-way valve and a second parallel pipeline, the second parallel pipeline is connected with the heat exchanger a in parallel, and the four-way valve of the refrigerant circulation system, the second parallel pipeline and a refrigerant port of the heat exchanger a are connected through the three-way valve.
In one embodiment, a pipeline connecting the heat exchanger a and the heat exchanger B in series is a serial pipeline, a first check valve is disposed on the serial pipeline, a refrigerant port of the heat exchanger a, which is communicated with the three-way valve, is a first refrigerant port, another refrigerant port of the heat exchanger a is a second refrigerant port, the first check valve is located between the second refrigerant port and the second parallel pipeline, and a flow direction controlled by the first check valve is a position where the second refrigerant port flows to the serial pipeline and is communicated with the second parallel pipeline.
In one embodiment, the heat exchanger B further includes an intermediate refrigerant conveying pipe, a refrigerant port of the heat exchanger B, which is used for communicating with the serial pipeline, is a third refrigerant port, a first end of the intermediate refrigerant conveying pipe is communicated with a pipe section of the serial pipeline, which is located between the first check valve and the second refrigerant port, a second end of the intermediate refrigerant conveying pipe is communicated with a pipe section of the serial pipeline, which is located between the first parallel pipeline and the third refrigerant port, a second check valve is arranged on the intermediate refrigerant conveying pipe, and a flow direction controlled by the second check valve is from the second end of the intermediate refrigerant conveying pipe to the first end of the intermediate refrigerant conveying pipe.
In one embodiment, the refrigerant circulation system further includes a compressor, a second heat exchanger, and a throttling element, the air inlet and the air outlet of the compressor and the refrigerant port of the second heat exchanger are respectively communicated with the other three ports of the four-way valve, and the throttling element is located between the first heat exchanger and the second heat exchanger.
In one embodiment, the throttling element comprises a capillary tube, a throttling nipple, or a thermostatic expansion valve.
In one embodiment, the upper water storage part of the water tank is provided with a first temperature detection piece, and the lower water storage part of the water tank is provided with a second temperature detection piece.
In one embodiment, the water storage space in the water tank is cylindrical, the heat exchanger A and the heat exchanger B are sequentially arranged at intervals in the axial direction of the water storage space, the heat exchange tube of the heat exchanger A is wound on the upper water storage part of the water tank, and the heat exchange tube of the heat exchanger B is wound on the lower water storage part of the water tank.
In one embodiment, the water tank comprises a first water tank and a second water tank which are connected in series, the first water tank is the upper water storage part, the second water tank is the lower water storage part, the water outlet of the water tank is the water outlet of the first water tank, the water inlet of the first water tank is communicated with the water outlet of the second water tank, the water inlet of the water tank is the water inlet of the second water tank, the heat exchange tube of the heat exchanger A is wound outside the first water tank, and the heat exchange tube of the heat exchanger B is wound outside the second water tank.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a system diagram of an air energy water heater according to the present embodiment;
FIG. 2 is a system diagram of an air energy water heater according to another embodiment;
FIG. 3 is a flow chart of a control method of the air energy water heater according to the embodiment;
fig. 4 is a flowchart of a control method of an air energy water heater according to another embodiment.
Description of reference numerals:
10. an air energy water heater; 11. a water tank; 111. an upper water storage part; 112. a lower water storage part; 12. a refrigerant circulation system; 121. a compressor; 122. a four-way valve; 123. a first heat exchanger; 1231. a heat exchanger A; 1232. a heat exchanger B; 1233. a series pipeline; 124. a second heat exchanger; 125. a throttling element; 13. a first on-off valve; 14. a three-way valve; 15. a first parallel line; 16. a second parallel line; 17. a first check valve; 18. an intermediate refrigerant conveying pipe; 181. a second one-way valve.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
In one embodiment, as shown in fig. 1, an air-powered water heater 10 is provided and includes a refrigerant circulation system 12, a water tank 11, and a first on-off valve 13. The refrigerant circulation system 12 includes a compressor 121, a first heat exchanger 123, a second heat exchanger 124, a throttling element 125, and a four-way valve 122, and forms an air conditioning system capable of performing cooling or heating. The air inlet and the air outlet of the compressor 121 and the refrigerant outlet of the second heat exchanger 124 are respectively communicated with the other three ports of the four-way valve 122, and the throttling element 125 is located between the first heat exchanger 123 and the second heat exchanger 124. The coolant circulation system 12 can provide heat to the water tank 11 during operation, and heat water in the water tank 11.
Specifically, as shown in fig. 1, the first heat exchanger 123 of the refrigerant circulation system 12 includes a heat exchanger a1231 and a heat exchanger B1232 connected in series, the heat exchanger a1231 is disposed at the upper water storage portion 111 of the water tank 11, and the heat exchanger B1232 is disposed at the lower water storage portion 112 of the water tank 11. When the refrigerant circulation system 12 provides heat to the water tank 11 to heat water in the water tank 11, the first heat exchanger 123 is a condenser in the refrigerant circulation system 12, and the second heat exchanger 124 is an evaporator in the refrigerant circulation system 12; when the refrigerant circulation system 12 needs to defrost, the first heat exchanger 123 is an evaporator of the refrigerant circulation system 12, and the second heat exchanger 124 is a condenser of the refrigerant circulation system 12. When the refrigerant circulation system 12 provides heat for the water tank 11 to heat water in the water tank 11, the heat exchanger a1231 exchanges heat with the upper water storage portion 111 of the water tank 11, and the heat exchanger B1232 exchanges heat with the lower water storage portion 112 of the water tank 11.
The water outlet of the water tank 11 is located at the upper water storage part 111 of the water tank 11. The water in the water tank 11 is heated and then layered, so that the hot water is mainly concentrated in the upper water storage part 111 of the water tank 11, and when a user needs to use the hot water, in order to rapidly guide the hot water out, the water outlet of the water tank 11 is arranged in the upper water storage part 111 of the water tank 11.
Further, the air energy water heater 10 further comprises a first parallel pipeline 15, the first parallel pipeline 15 is connected in parallel with the heat exchanger B1232, and the first switch valve 13 is used for controlling on and off of the first parallel pipeline 15.
Therefore, when hot water needs to be obtained quickly, the first switch valve 13 is opened, so that the refrigerant in the refrigerant circulation system 12 mainly exchanges heat with the water storage part 111 on the water tank 11 through the heat exchanger a1231, at this time, the heat exchanger a1231 is used as a condenser, and the refrigerant flowing through the heat exchanger a1231 can directly flow to the throttling element 125 through the first parallel pipeline 15, so that the water in the water storage part 111 on the water tank 11 is heated quickly, and the hot water supply rate is improved. In a normal heating process, the first on-off valve 13 is closed, and a refrigerant passes through the heat exchanger a1231 and the heat exchanger B1232 in sequence and exchanges heat with the upper water storage portion 111 and the lower water storage portion 112 of the water tank 11.
Specifically, in one embodiment, the first switching valve 13 includes a solenoid valve provided on the first parallel line 15. The solenoid valves may be controlled by a controller of the air energy water heater 10, and when the controller obtains a command that the air energy water heater 10 needs to enter a rapid heating mode, the solenoid valves are opened, and the refrigerant that releases heat through the heat exchanger a1231 flows from the first parallel line 15 to the throttling element 125.
Alternatively, the first on-off valve 13 may have another valve structure capable of controlling the on/off of the first parallel line 15.
Further, in one embodiment, as shown in fig. 1, the air-energy water heater 10 further includes a second parallel line 16, the second parallel line 16 being in parallel with the heat exchanger a 1231. The air-source water heater 10 further includes a switch valve assembly for controlling whether the refrigerant flows through the second parallel pipeline 16 or the heat exchanger a1231 during the circulation of the refrigerant. When a refrigerant passes through the heat exchanger A1231, the switch valve assembly cuts off the second parallel pipeline 16; when the refrigerant passes through the second parallel pipeline, the switch valve assembly and the heat exchanger A1231 are cut off and cannot be conducted.
Specifically, as shown in fig. 1, the switching valve assembly includes a three-way valve 14, and the four-way valve 122 of the refrigerant cycle system 12, the second parallel pipeline 16 and the refrigerant port of the heat exchanger a1231 are connected by the three-way valve 14. The port 0 of the three-way valve 14 is communicated with the four-way valve 122, the port 1 of the three-way valve 14 is communicated with the second parallel pipeline 16, and the port 2 of the three-way valve 14 is communicated with the refrigerant port of the heat exchanger a 1231.
When the air energy water heater 10 enters the rapid heating mode, the port 0 and the port 2 of the three-way valve 14 are communicated, and the first switching valve 13 is opened, so that all the refrigerant passes through the heat exchanger a1231 to heat the water in the water storage part 111 on the water tank 11, and then flows to the first parallel pipeline 15.
When the air energy water heater 10 enters the bottom heating mode, the port 0 and the port 1 of the three-way valve 14 are communicated, and the first switching valve 13 is closed, so that all the refrigerant flows to the heat exchanger B1232 through the second parallel pipeline 16, and the water in the lower water storage part 112 of the water tank 11 is heated. For example, as shown in FIG. 3, when the air-energy water heater 10 enters the rapid heating mode for a period of time, if the water temperature T in the water storage part 111 of the water tank 11 is higher than the preset valueOn the upper partThe water temperature T of the upper water storage part 111 of the water tank 11 reaches the preset first water temperatureOn the upper partThe water temperature T of the lower water storage part 112 of the water tank 11Lower partWhen the difference between the upper water storage part and the lower water storage part is larger than the preset temperature difference value delta T, the fact that the temperature of 111 water in the upper water storage part of the water tank 11 can meet the requirement of a user for quickly needing hot water is proved, the temperature difference between the temperature of the upper water storage part and the temperature of the lower water storage part of the water tank 11 is larger, and at the moment, water 112 in the lower water storage part of the water tank 11 needs to be specially heated to enter the bottom heating mode. When the temperature T of the water in the water storage part 111 on the water tank 11 is higherOn the upper partWhen the preset first water temperature is not reached, the rapid heating mode may be continued.
As shown in fig. 3 and 4, if it is necessary to defrost the second heat exchanger 124 of the refrigerant cycle system 12 in addition to the rapid heating mode and the bottom heating mode, the four-way valve 122 of the refrigerant cycle system 12 is switched to a state, and then the first heat exchanger 123 of the refrigerant cycle system 12 is used as an evaporator. Specifically, as shown in fig. 1, the air-energy water heater 10 enters a low-temperature water frost hydration mode, the first heat exchanger 123 only uses the heat exchanger B1232 as an evaporator, and exchanges heat with the heat exchanger B1232 by means of heat of low-temperature water in the lower water storage portion 112 of the water tank 11. In the low-temperature water-containing frost mode, the port 0 and the port 1 of the three-way valve 14 are communicated, and the first switch valve 13 is closed.
When the air energy water heater 10 enters the normal heating mode, the port 0 and the port 2 of the three-way valve 14 are communicated, and the first switch valve 13 is closedAnd the refrigerant sequentially passes through the heat exchanger A1231 and the heat exchanger B1232 to exchange heat. Moreover, in the heat exchange process, the refrigerant firstly passes through the heat exchanger a1231 and then passes through the heat exchanger B1232, so that the heat absorbed by the water in the water storage part 111 on the water tank 11 can be increased to a certain extent, the heating energy efficiency is improved, and meanwhile, the efficiency of providing hot water for users is also improved. Similar to the rapid heating mode, in the normal heating mode, if the temperature of the water in the water storage portion 111 of the water tank 11 is TOn the upper partThe water temperature T of the upper water storage part 111 of the water tank 11 reaches the preset first water temperatureOn the upper partThe water temperature T of the lower water storage part 112 of the water tank 11Lower partAnd when the difference value between the temperature difference values is greater than the preset temperature difference value delta T, controlling the air energy water heater 10 to enter the bottom heating mode. When the temperature T of the water in the water storage part 111 on the water tank 11 is higherOn the upper partWhen the preset first water temperature is not reached, the normal heating mode may be continued.
As shown in fig. 4, in the normal heating mode, when the air energy water heater 10 needs to enter the defrosting mode, the normal defrosting mode is entered. As shown in fig. 1, when the air-source water heater 10 enters the normal defrosting mode, the refrigerant passing through the throttling element 125 sequentially flows through the heat exchanger B1232 and the heat exchanger a1231, in other words, both the heat exchanger B1232 and the heat exchanger a1231 connected in series are used as evaporators.
Further, as shown in fig. 3, after the heat exchanger B is operated as a condenser for a certain time after entering the bottom heating mode, the temperature T of the water in the lower water storage portion 112 of the water tank 11 is higher than that in the bottom heating modeLower partRising when the water temperature T risesLower partWhen the temperature rises to be higher than the preset second water temperature, the heating can be stopped, and the power-off state is entered.
Further, as shown in fig. 2, in one embodiment, a refrigerant port of the heat exchanger a1231, which communicates with the three-way valve 14, is a first refrigerant port, and another refrigerant port of the heat exchanger a1231 is a second refrigerant port. The pipeline for connecting the heat exchanger A1231 and the heat exchanger B1232 in series is a serial pipeline 1233, and a first check valve 17 is arranged on the serial pipeline 1233. The first check valve 17 is located between the second refrigerant port and the second parallel pipeline 16, and the flow direction controlled by the first check valve 17 is from the second refrigerant port to the serial pipeline 1233, where the second parallel pipeline 16 is communicated with the serial pipeline.
The first check valve 17 is disposed such that when the port 0 of the three-way valve 14 is communicated with the port 1 thereof, the refrigerant flowing out of the second parallel line 16 flows only to the first parallel line 15 or the heat exchanger B1232 through the serial line 1233, and does not flow to the heat exchanger a 1231.
Further, as shown in fig. 2, in one embodiment, the air energy water heater 10 further includes an intermediate refrigerant delivery pipe 18. The refrigerant port of the heat exchanger B1232, which is used for communicating with the series pipeline 1233, is a third refrigerant port. The first end of the intermediate refrigerant conveying pipe 18 is communicated with a pipe section, located between the first check valve 17 and the second refrigerant port, of the series pipeline 1233, the second end of the intermediate refrigerant conveying pipe 18 is communicated with a pipe section, located between the first parallel pipeline 15 and the third refrigerant port, of the series pipeline 1233, the second check valve 181 is arranged on the intermediate refrigerant conveying pipe 18, and the flowing direction controlled by the second check valve 181 is from the second end of the intermediate refrigerant conveying pipe 18 to the first end of the intermediate refrigerant conveying pipe 18.
In the rapid heating mode, after passing through the heat exchanger a1231, the high-temperature refrigerant sequentially passes through the first check valve 17 and the first switching valve 13 and flows to the throttling element 125. In the normal defrosting mode, the port 0 and the port 2 of the three-way valve 14 are communicated, the first switching valve 13 is closed, and the refrigerant passing through the throttling element 125 sequentially flows through the heat exchanger B1232, the second check valve 181 and the heat exchanger a 1231.
Further, in one embodiment, the upper water storage portion 111 of the water tank 11 is provided with a first temperature detecting element for detecting the temperature T of the water in the upper water storage portion 111 of the water tank 11On the upper part. The lower water storage part 112 of the water tank 11 is provided with a second temperature detection part for detecting the water temperature T of the lower water storage part 112 of the water tank 11Lower part。
And the basis of switching the two modes of the quick heating mode and the bottom heating mode of the air energy water heater 10 is the temperature detected by the first temperature detecting element and the second temperature detecting element.
More specifically, in one embodiment, as shown in fig. 1 and fig. 2, the water storage space in the water tank 11 is cylindrical, the heat exchanger a1231 and the heat exchanger B1232 are sequentially arranged at intervals in the axial direction of the water storage space, the heat exchange tube of the heat exchanger a1231 is wound around the upper water storage portion 111 of the water tank 11, and the heat exchange tube of the heat exchanger B1232 is wound around the lower water storage portion 112 of the water tank 11.
In the rapid heating mode, heat of the high-temperature refrigerant is mainly exchanged with water in the water storage part 111 of the water tank 11 through the heat exchanger a1231, so as to rapidly provide hot water for a user. Although the heat of the water in the upper water storage portion 111 is transferred to the water in the lower water storage portion 112 in the same water storage space, the heat provided by the heat exchanger a1231 wound outside the upper water storage portion 111 of the water tank 11 can still heat the water in the upper water storage portion 111 of the water tank 11 quickly.
In the low-temperature water-retaining frost process, the heat exchanger B1232 is used as an evaporator, and the heat of the water in the lower water storage part 112 of the water tank 11 is absorbed by the heat exchanger B1232, but the influence on the water temperature of the upper water storage part 111 of the water tank 11 is small, so that the high-temperature hot water can be provided for the user in the low-temperature water-retaining frost process.
Further, in another embodiment, the water tank 11 includes a first water tank and a second water tank connected in series, the first water tank is the upper water storage portion 111, the second water tank is the lower water storage portion 112, the water outlet of the water tank 11 is the water outlet of the first water tank, the water inlet of the first water tank is communicated with the water outlet of the second water tank, the water inlet of the water tank 11 is the water inlet of the second water tank, the heat exchange tube of the heat exchanger a1231 is wound outside the first water tank, and the heat exchange tube of the heat exchanger B1232 is wound outside the second water tank.
When hot water is provided for a user, firstly, water in the first water tank flows out from the water outlet of the first water tank, and in the rapid heating mode, the heat exchanger a1231 can firstly heat the water in the first water tank, so that the efficiency of providing hot water for the user is improved.
More specifically, the throttling element 125 in the refrigerant circulating system 12 may be a capillary tube, a throttling stub, or a thermal expansion valve.
Further, in another embodiment, as shown in fig. 3, a control method of an air energy water heater 10 is provided, where the air energy water heater 10 includes a refrigerant circulation system 12 and a water tank 11, a heat exchanger a1231 of the refrigerant circulation system 12 corresponds to the upper water storage portion 111 of the water tank 11, and a water outlet of the water tank 11 is located at the upper water storage portion 111 of the water tank 11, and the control method includes the following steps:
when the air energy water heater 10 is in the rapid heating mode, the refrigerant flow direction of the refrigerant circulation system 12 is controlled such that the condenser through which the refrigerant flows only includes the heat exchanger a 1231.
According to the control method of the air energy water heater 10 provided by the scheme, when the air energy water heater 10 is in the fast heating mode, the heat exchanger A1231 corresponding to the water storage part 111 on the water tank 11 is controlled to be used as the condenser of the refrigerant circulating system 12, and the water in the water storage part 111 on the water tank 11 is rapidly heated by fully utilizing heat, so that the water temperature near the water outlet of the water tank 11 is rapidly increased, and the hot water supply efficiency is further improved.
Specifically, when incorporated into the air energy water heater 10 described in the foregoing embodiments, the specific steps of controlling the flow direction of the refrigerant in the refrigerant circulation system 12 include: the first on-off valve 13 is controlled to open.
In other words, when the air-source water heater 10 is in the rapid heating mode, the first switching valve 13 is opened so that the refrigerant mainly passes through the heat exchanger a1231, but does not pass through the heat exchanger B1232.
Further, in one embodiment, the specific steps of controlling the flow direction of the refrigerant in the refrigerant circulation system 12 further include: and controlling the communication between the port 0 and the port 2 of the three-way valve 14.
Further, in an embodiment, the refrigerant system further includes a heat exchanger B1232, the heat exchanger B1232 is disposed corresponding to the lower water storage portion 112 of the water tank 11, as shown in fig. 1, and the control method further includes the following steps:
when the air energy water heater 10 is in the low-temperature water frost hydration mode, the flow direction of the refrigerant in the refrigerant circulation system 12 is controlled, so that the evaporator through which the refrigerant flows only includes the heat exchanger B1232.
In the low-temperature water-based defrosting mode, a high-temperature refrigerant flows through the second heat exchanger 124 and the throttling element 125 in sequence and then flows to the heat exchanger B1232, and the heat exchanger B1232 absorbs the heat of water in the lower water storage part 112 of the water tank 11, so that the influence on the temperature of water in the upper water storage part 111 of the water tank 11 in the defrosting process is reduced.
Specifically, in the low-temperature water frost mode, the specific step of controlling the flow direction of the refrigerant in the refrigerant circulation system 12 includes controlling the first on-off valve 13 to open. Further, when the three-way valve 14 is included in the air energy water heater 10, the specific step of controlling the flow direction of the refrigerant in the refrigerant circulation system 12 further includes controlling the communication between the port 0 and the port 1 of the three-way valve 14.
More specifically, as shown in fig. 4, in the rapid heating mode or in the bottom heating mode, when defrosting is required, the low-temperature water-based defrosting mode is entered.
Further, in one embodiment, as shown in fig. 3, the control method of the air energy water heater 10 further includes the following steps:
in the rapid heating mode, the water temperature T of the upper water storage part 111 of the water tank 11 is obtainedOn the upper partAnd the water temperature T of the lower water storage part 112 of the water tank 11Lower part；
When the water temperature TOn the upper partNot less than a predetermined first water temperature, and a water temperature TLower partWith the temperature T of the waterOn the upper partWhen the temperature difference value is larger than the preset temperature difference value delta T, the refrigerant flowing through the heat exchanger A1231 is guided to the heat exchanger B1232, and then the refrigerant enters a bottom heating mode. Specifically, the preset temperature difference value Δ T may be 3 ℃.
Further, in one embodiment, as shown in fig. 3, the control method of the air energy water heater 10 further includes the following steps:
in the normal heating mode, the water temperature T of the upper water storage part 111 of the water tank 11 is obtainedOn the upper partAnd stationThe water temperature T of the lower water storage part 112 of the water tank 11Lower part；
When the water temperature TOn the upper partNot less than a predetermined first water temperature, and a water temperature TLower partWith the temperature T of the waterOn the upper partWhen the temperature difference value is greater than the preset temperature difference value delta T, the heat exchanger B1232 is controlled to be used as a condenser, and the refrigerant does not flow through the heat exchanger A1231, namely enters a bottom heating mode.
In particular, incorporated into the air energy water heater 10 described above, when the temperature of the water TOn the upper partNot less than a predetermined first water temperature, and a water temperature TLower partWith the temperature T of the waterOn the upper partWhen the temperature difference value is larger than the preset temperature difference value delta T, the heat exchanger B1232 is controlled to be used as a condenser, and the specific steps that the refrigerant does not flow through the heat exchanger A1231 comprise: the first on-off valve 13 is opened.
The first temperature detecting element, the second temperature detecting element, the three-way valve 14 and the first switch valve 13 of the air energy water heater 10 may all be electrically connected to a controller of the air energy water heater 10. The controller thus controls the states of the three-way valve 14 and the first on-off valve 13 according to the previous steps, so that the air energy water heater 10 enters the bottom heating mode.
Further, as shown in fig. 3, the control method of the air energy water heater 10 further includes the step of determining the water temperature T after entering the bottom heating mode for a period of timeLower partAnd if the temperature is higher than the preset second water temperature, stopping heating and entering a shutdown state.
Further, as shown in fig. 3, in the aforementioned normal heating mode or the rapid heating mode, if the water temperature T is setOn the upper partNot less than a predetermined first water temperature, and a water temperature TLower partWith the temperature T of the waterOn the upper partWhen the temperature difference value is less than the preset temperature difference value delta T, the water temperature T in the upper water storage part 111 of the water tank 11 is provedOn the upper partThe water temperature T of the lower water storage part 112Lower partThe temperature difference value between the two is small, and the heating can be directly stopped to enter a shutdown state without entering a bottom heating mode.
Specifically, during use, a user sets the air energy water heater to enter a normal heating mode, a rapid heating mode, or a bottom heating mode as desired. The air energy water heater performs the functional steps according to the heating mode selected by the user according to the flow in the schemes described above. Or, in the using process, the air energy water heater can automatically enter the target heating mode according to a certain rule, and then the functional steps are executed according to the flow in the schemes. It will be appreciated that when the initial heating mode is determined, the air energy water heater automatically performs the various functional steps according to the established flow described in the preceding aspects.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides an air can water heater, its characterized in that includes refrigerant circulation system, water tank, first ooff valve and first parallelly connected pipeline, refrigerant circulation system's first heat exchanger is including heat exchanger A and the heat exchanger B of establishing ties, the delivery port of water tank is located the last water storage portion of water tank, heat exchanger A sets up the last water storage portion of water tank, heat exchanger B sets up the lower water storage portion of water tank, first parallelly connected pipeline with heat exchanger B is parallelly connected, first ooff valve is used for controlling the break-make of first parallelly connected pipeline.
2. The air-powered water heater of claim 1, wherein the first on-off valve comprises a solenoid valve disposed on the first parallel line.
3. The air-source water heater according to claim 1, further comprising a three-way valve and a second parallel pipeline, wherein the second parallel pipeline is connected in parallel with the heat exchanger A, and the four-way valve of the refrigerant circulation system, the second parallel pipeline and the refrigerant port of the heat exchanger A are connected through the three-way valve.
4. The air energy water heater according to claim 3, wherein a pipeline connecting the heat exchanger A and the heat exchanger B in series is a serial pipeline, a first check valve is arranged on the serial pipeline, a refrigerant port of the heat exchanger A, which is communicated with the three-way valve, is a first refrigerant port, another refrigerant port of the heat exchanger A is a second refrigerant port, the first check valve is located between the second refrigerant port and the second parallel pipeline, and a flow direction controlled by the first check valve is a position where the refrigerant flows from the second refrigerant port to the serial pipeline and is communicated with the second parallel pipeline.
5. The air energy water heater according to claim 4, further comprising an intermediate refrigerant conveying pipe, wherein the refrigerant port of the heat exchanger B, which is used for being communicated with the series pipeline, is a third refrigerant port, a first end of the intermediate refrigerant conveying pipe is communicated with a pipe section, which is located between the first check valve and the second refrigerant port, of the series pipeline, a second end of the intermediate refrigerant conveying pipe is communicated with a pipe section, which is located between the first parallel pipeline and the third refrigerant port, of the series pipeline, a second check valve is arranged on the intermediate refrigerant conveying pipe, and a flow direction controlled by the second check valve is from the second end of the intermediate refrigerant conveying pipe to the first end of the intermediate refrigerant conveying pipe.
6. The air-source water heater according to claim 3, wherein the refrigerant circulating system further comprises a compressor, a second heat exchanger and a throttling element, wherein an air inlet and an air outlet of the compressor and a refrigerant port of the second heat exchanger are respectively communicated with the other three ports of the four-way valve, and the throttling element is positioned between the first heat exchanger and the second heat exchanger.
7. The air-powered water heater of claim 6, wherein the throttling element comprises a capillary tube, a throttling spool, or a thermal expansion valve.
8. An air energy water heater according to any one of claims 1 to 7, wherein the upper water storage portion of the water tank is provided with a first temperature detecting member and the lower water storage portion of the water tank is provided with a second temperature detecting member.
9. The air energy water heater according to any one of claims 1 to 7, wherein the water storage space in the water tank is cylindrical, the heat exchanger A and the heat exchanger B are sequentially arranged at intervals in the axial direction of the water storage space, the heat exchange tube of the heat exchanger A is wound on the upper water storage part of the water tank, and the heat exchange tube of the heat exchanger B is wound on the lower water storage part of the water tank.
10. The air-energy water heater according to any one of claims 1 to 7, wherein the water tank comprises a first water tank and a second water tank which are connected in series, the first water tank is the upper water storage portion, the second water tank is the lower water storage portion, the water outlet of the water tank is the water outlet of the first water tank, the water inlet of the first water tank is communicated with the water outlet of the second water tank, the water inlet of the water tank is the water inlet of the second water tank, the heat exchange tube of the heat exchanger A is wound outside the first water tank, and the heat exchange tube of the heat exchanger B is wound outside the second water tank.
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| CN202120612199.9U CN214746484U (en) | 2021-03-25 | 2021-03-25 | Air energy water heater |
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| CN202120612199.9U CN214746484U (en) | 2021-03-25 | 2021-03-25 | Air energy water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984799A (en) * | 2021-03-25 | 2021-06-18 | 珠海格力电器股份有限公司 | Air energy water heater and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984799A (en) * | 2021-03-25 | 2021-06-18 | 珠海格力电器股份有限公司 | Air energy water heater and control method thereof |
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