CN214841695U - Air energy water heater - Google Patents
Air energy water heater Download PDFInfo
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- CN214841695U CN214841695U CN202022858982.1U CN202022858982U CN214841695U CN 214841695 U CN214841695 U CN 214841695U CN 202022858982 U CN202022858982 U CN 202022858982U CN 214841695 U CN214841695 U CN 214841695U
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Abstract
An air-powered water heater comprising: a heat exchanger including a refrigerant cycle side and a water heating side; the system comprises an expansion valve, an air heat exchanger, a compressor and a four-way valve; the refrigerant circulation side of the heat exchanger, the expansion valve, the air heat exchanger and the compressor are sequentially connected in a circulating manner, and the four-way valve is respectively connected with the air heat exchanger, the compressor and the refrigerant circulation side of the heat exchanger. The utility model discloses an air can water heater can realize hot water and defrosting function, simple structure, convenient to use and maintenance, and the cost is lower.
Description
Technical Field
The utility model relates to an air can water heater.
Background
The existing air energy water heater has the disadvantages of complex structure, higher cost and inconvenient use and maintenance. Secondly, the existing air energy water heater generally adopts the hot water tank to be in circulating connection with the heat exchanger, the heat exchanger is used for continuously and circularly heating the hot water in the hot water tank, and the heating efficiency is low due to the fact that the temperature of a water source entering the heat exchanger is high and the heat energy is not fully utilized.
SUMMERY OF THE UTILITY MODEL
According to an aspect of the utility model, an air can water heater is provided, include:
a heat exchanger including a refrigerant cycle side and a water heating side;
the system comprises an expansion valve, an air heat exchanger, a compressor and a four-way valve;
the refrigerant circulation side of the heat exchanger, the expansion valve, the air heat exchanger and the compressor are sequentially connected in a circulating manner, and the four-way valve is respectively connected with the air heat exchanger, the compressor and the refrigerant circulation side of the heat exchanger.
The utility model discloses an air can water heater can realize hot water and defrosting function, simple structure, convenient to use and maintenance, and the cost is lower.
In some embodiments, the four-way valve is provided with a port D, a port E, a port S, and a port C, the port D being connected to the outlet of the compressor, the port E being connected to the refrigerant cycle side of the heat exchanger, the port S being connected to the inlet of the compressor, and the port C being connected to the air heat exchanger.
In some embodiments, further comprising a gas-liquid separator disposed before the inlet of the compressor.
In some embodiments, the water supply system further comprises a first throttle valve and a three-way valve, wherein inlets of the three-way valve are respectively used for being connected with a tap water inlet end and a water return end and switching water inlet between the tap water inlet end and the water return end; the inlet of the first throttle valve is connected with the outlet of the three-way valve, and the outlet of the first throttle valve is connected with the inlet of the water heating side of the heat exchanger; the outlet of the water heating side of the heat exchanger is used for being connected with a hot water tank.
In some embodiments, the first throttle valve is an electric throttle valve.
In some embodiments, the first throttling valve is a condensing pressure valve for regulating the flow of water entering the heat exchanger for heating based on the discharge pressure of the compressor.
In some embodiments, the heat exchanger further comprises a second throttle valve, an inlet of the second throttle valve is connected with an outlet of the three-way valve, and an outlet of the second throttle valve is connected with an inlet of the water heating side of the heat exchanger.
In some embodiments, the inlets of the three-way valves are each provided with a one-way valve.
In some embodiments, the system further comprises a protection switch configured to shut down the compressor when a discharge pressure of the compressor exceeds a preset value.
In some embodiments, the heat exchanger further comprises a hot water tank connected to an outlet of the water heating side of the heat exchanger, and the hot water tank is configured to direct hot water out.
Drawings
Fig. 1 is a schematic view of a cycle of water inlet from a tap water inlet end in a hot water mode of an air energy water heater according to an embodiment of the present invention;
fig. 2 is a schematic view of a cycle of water inlet from a water return end in a hot water mode of an air energy water heater according to an embodiment of the present invention;
fig. 3 is a schematic cycle diagram of an air energy water heater according to a first embodiment of the present invention in a defrosting mode;
fig. 4 is a schematic circulation diagram of water entering from the water inlet end of tap water in the hot water mode of the air energy water heater according to the second embodiment of the present invention;
fig. 5 is a schematic view of a cycle of water inlet from a water return end in a hot water mode of the air energy water heater according to the second embodiment of the present invention;
fig. 6 is a schematic cycle diagram of an air energy water heater according to a second embodiment of the present invention in a defrosting mode.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 schematically illustrates an air-powered water heater according to some embodiments of the present invention, including a heat exchanger, a refrigerant cycle portion connected to a refrigerant cycle side of the heat exchanger, and a water heating portion connected to a water heating side of the heat exchanger. The water heating part provides a water source, so that the water source obtains heat and realizes water outlet through the heat exchanger.
In this specification, the four ports of the four-way valve 4 are respectively denoted by D, E, S, C, and the specific connection mode of the four-way valve 4 is not limited to the following mode as long as the relevant functions can be achieved, and those skilled in the art may make certain changes to the specific connection mode.
Example one
Refrigerant cycle section
Referring to fig. 1 to 3, the refrigerant cycle portion includes an accumulator 1, an expansion valve 2, an air heat exchanger, a gas-liquid separator 3, a compressor, a four-way valve 4, and a protection switch 5.
The refrigerant circulation side of the heat exchanger, the reservoir 1, the expansion valve 2, the air heat exchanger, the gas-liquid separator 3 and the compressor are sequentially connected in a circulating manner, and the four-way valve 4 is respectively connected with the air heat exchanger, the compressor, the gas-liquid separator 3 and the refrigerant circulation side of the heat exchanger.
The four-way valve 4 has a port D connected to the outlet of the compressor, a port E connected to the refrigerant circulation side of the heat exchanger, a port S connected to the inlet of the compressor via the gas-liquid separator 3, and a port C connected to the air heat exchanger.
The expansion valve 2 is a bidirectional expansion valve 2. The protection switch 5 is set to close the compressor when the discharge pressure of the compressor exceeds a preset value.
The air energy heat exchange realized by the refrigerant circulating part can provide two functional modes, and the working processes are respectively described below.
(1) Hot water mode
In this mode, heat from the outdoor environment is absorbed by the air heat exchanger, and heat is released by the heat exchanger into the water flow to be heated, so that the water flow is heated without affecting the indoor temperature.
As shown in fig. 1-2, the refrigerant circulation path is such that the refrigerant absorbs heat and evaporates in the air heat exchanger, passes through the ports C and S of the four-way valve 4 in sequence, enters the gas-liquid separator 3, enters the compressor for supercharging, passes through the ports D and E of the four-way valve 4 in sequence, is subjected to heat dissipation and condensation at the refrigerant circulation side of the heat exchanger, passes through the liquid reservoir 1, is depressurized by the expansion valve 2, enters the air heat exchanger again after depressurization, and continues the next cycle.
(2) Defrost mode
In this mode, the heat exchanger absorbs heat from the water source and releases it to the air heat exchanger, causing frost on the air heat exchanger to melt. The water source preferably adopts room pipe network backwater in the backwater end.
As shown in fig. 3, in the refrigerant circulation path, after heat dissipation and condensation in the air heat exchanger, the refrigerant is decompressed by the expansion valve 2, then enters the refrigerant circulation side of the heat exchanger through the liquid storage device 1 to absorb heat and evaporate, sequentially passes through the ports E and S of the four-way valve 4, enters the gas-liquid separator 3, then enters the compressor to be supercharged, sequentially passes through the ports D and C of the four-way valve 4, reenters the air heat exchanger, and continues to circulate for the next time.
(II) Water heating section
The water heating part comprises a three-way valve 6, a first throttle valve 7, a second throttle valve 8, a one-way valve 9, a hot water tank and a water pump 10.
The inlet of the three-way valve 6 is connected with the tap water inlet end and the water return end of the room pipe network through the one-way valve 9, and the outlet of the three-way valve 6 is connected with the inlet of the first throttle valve 7, so as to communicate one of the water return end or the tap water inlet end with the inlet of the first throttle valve 7, thereby realizing water inlet from the water return end (refer to fig. 2) or the tap water inlet end (refer to fig. 1). The one-way valve 9 may be omitted.
The outlet of the first throttle valve 7 is connected with the inlet of the water heating side of the heat exchanger, and the outlet of the water heating side of the heat exchanger is connected with the hot water tank. After entering the hot water tank, the water is pressurized and delivered to a room where the water is used by the water pump 10. The first throttle valve 7 is used for controlling the water inflow of the water heating side of the heat exchanger, the first throttle valve 7 adopts a condensing pressure valve and is used for adjusting the water inflow according to the exhaust pressure of the compressor, and the opening degree of the valve is adjusted by sensing the pressure change of the refrigerant, so that enough water flow can pass through, and the improvement of the heat exchange efficiency and the constancy of the water outlet temperature are facilitated.
The inlet of the second throttle 8 is connected to the outlet of the three-way valve 6 and its outlet is connected to the inlet of the water heating side of the heat exchanger, and in the defrost mode, referring to fig. 3, water flow can enter the heat exchanger through the second throttle 8 instead of the first throttle 7.
The hot water tank is connected with an outlet of a water heating side of the heat exchanger, and the hot water tank is set to be directly discharged, namely is not circularly connected with the heat exchanger, so that water in the hot water tank is not circularly heated. Among the prior art, heat exchanger constantly carries out the circulation heating to the hot water in the hot-water tank, and because the water source temperature who gets into heat exchanger is higher, and heat energy utilization is not abundant, leads to heating efficiency lower, and the utility model discloses in, do not adopt hot-water tank circulation heating's mode, but through the direct play water of hot-water tank, the water source temperature who gets into heat exchanger is lower, consequently can improve heating efficiency greatly.
Example two
Referring to fig. 4 to 6, the refrigerant cycle portion of the present embodiment is the same as that of the first embodiment except for the water heating portion. The water heating part comprises a three-way valve 6, a first throttle valve 7, a one-way valve 9, a hot water tank and a water pump 10, and does not comprise a second throttle valve 8. The first throttle valve 7 is preferably an electric throttle valve. The adjustment of the outlet water temperature can be directly realized through the adjustment of the opening of the electric throttle valve.
The inlet of the three-way valve 6 is connected with the tap water inlet end and the water return end of the room pipe network through the one-way valve 9, and the outlet of the three-way valve 6 is connected with the inlet of the first throttle valve 7, so as to communicate one of the water return end or the tap water inlet end with the inlet of the first throttle valve 7, thereby realizing water inlet from the water return end (refer to fig. 5) or the tap water inlet end (refer to fig. 4).
The outlet of the first throttle valve 7 is connected with the inlet of the water heating side of the heat exchanger, and the outlet of the water heating side of the heat exchanger is connected with the hot water tank. After entering the hot water tank, the water is pressurized and delivered to a room where the water is used by the water pump 10. The first throttle valve 7 is used for controlling the water inlet quantity of the water heating side of the heat exchanger.
The hot water tank is connected with an outlet of a water heating side of the heat exchanger, and the hot water tank is set to be directly discharged, namely is not circularly connected with the heat exchanger, so that water in the hot water tank is not circularly heated. Among the prior art, heat exchanger constantly carries out the circulation heating to the hot water in the hot-water tank, and because the water source temperature who gets into heat exchanger is higher, and heat energy utilization is not abundant, leads to heating efficiency lower, and the utility model discloses in, do not adopt hot-water tank circulation heating's mode, but the aperture that directly passes through electronic choke valve adjusts water temperature, and water gets into behind the hot-water tank, directly carries to each room through water pump 10, because the water source that gets into heat exchanger is cold water, and the circulation hot water in the non-hot-water tank, gets into heat exchanger's water source temperature lower, consequently can improve heating efficiency greatly.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, or the above technical solutions can be freely combined, including the technical features between the above different embodiments, which all belong to the protection scope of the present invention.
Claims (9)
1. An air-powered water heater, comprising:
a heat exchanger including a refrigerant cycle side and a water heating side;
the system comprises an expansion valve, an air heat exchanger, a compressor and a four-way valve;
the refrigerant circulation side of the heat exchanger, the expansion valve, the air heat exchanger and the compressor are sequentially connected in a circulating manner, and the four-way valve is respectively connected with the air heat exchanger, the compressor and the refrigerant circulation side of the heat exchanger;
the air energy water heater also comprises a first throttle valve and a three-way valve, wherein the inlet of the three-way valve is respectively used for being connected with a tap water inlet end and a water return end and switching water inlet between the tap water inlet end and the water return end; the inlet of the first throttling valve is connected with the outlet of the three-way valve, and the outlet of the first throttling valve is connected with the inlet of the water heating side of the heat exchanger; and the outlet of the water heating side of the heat exchanger is used for being connected with a hot water tank.
2. The air-energy water heater of claim 1, wherein: the four-way valve is provided with a port D, a port E, a port S and a port C, the port D is connected with the outlet of the compressor, the port E is connected with the refrigerant circulating side of the heat exchanger, the port S is connected with the inlet of the compressor, and the port C is connected with the air heat exchanger.
3. The air-energy water heater of claim 1, wherein: also included is a gas-liquid separator disposed before an inlet of the compressor.
4. An air-powered water heater as claimed in any one of claims 1 to 3 wherein: the first throttle valve is an electric throttle valve.
5. An air-powered water heater as claimed in any one of claims 1 to 3 wherein: the first throttling valve is a condensing pressure valve and is used for adjusting water flow entering the heat exchanger for heating according to the exhaust pressure of the compressor.
6. The air-energy water heater of claim 5, wherein: the water heating system also comprises a second throttling valve, wherein the inlet of the second throttling valve is connected with the outlet of the three-way valve, and the outlet of the second throttling valve is connected with the inlet of the water heating side of the heat exchanger.
7. An air-powered water heater as claimed in any one of claims 1 to 3 wherein: and the inlets of the three-way valves are respectively provided with a one-way valve.
8. An air energy water heater according to any one of claims 1 to 3, further comprising a protection switch arranged to switch off the compressor when the discharge pressure of the compressor exceeds a preset value.
9. An air-powered water heater according to any one of claims 1 to 3, further comprising a hot water tank connected to an outlet of the water heating side of the heat exchanger, the hot water tank being arranged to direct hot water out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022858982.1U CN214841695U (en) | 2020-12-02 | 2020-12-02 | Air energy water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022858982.1U CN214841695U (en) | 2020-12-02 | 2020-12-02 | Air energy water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214841695U true CN214841695U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022858982.1U Active CN214841695U (en) | 2020-12-02 | 2020-12-02 | Air energy water heater |
Country Status (1)
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|---|---|
| CN (1) | CN214841695U (en) |
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2020
- 2020-12-02 CN CN202022858982.1U patent/CN214841695U/en active Active
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