Heat pump system

Abstract

The embodiment of the utility model provides a heat pump system, a water-fluorine heat exchanger comprises a heat exchange pipe, the heat exchange pipe is provided with a plurality of heat exchange channels which are separated from one another, and the plurality of heat exchange channels at least comprise a first water flow channel, a second water flow channel and a refrigerant channel. After the heat pump system is provided with the water-fluorine heat exchanger, hot water can be provided for the floor heating coil pipe and the domestic water tank through the water-fluorine heat exchanger, and therefore the domestic water function can be added on the basis of the original air conditioner and floor heating functions of the heat pump system, the functions of the heat pump system are more diversified, and various requirements of users are met.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, and in particular to a heat pump system. Background Art

[0002] In the related art, there is a heat pump system with air conditioning and floor heating functions, which uses refrigerant for cooling or heating, and uses hot water obtained after heat exchange between the refrigerant and water for heating.

[0003] However, this type of heat pump system generally only has two functions: floor heating and air conditioning, and its functions are relatively simple. Utility Model Content

[0004] In view of this, the embodiments of the present application hope to provide a heat pump system to solve the technical problem in the related art that the heat pump system has relatively single functions.

[0005] To achieve the above-mentioned purpose, an embodiment of the present application provides a water-fluorine heat exchanger, which includes a heat exchange tube, and the heat exchange tube has a plurality of heat exchange channels separated from each other, and the plurality of heat exchange channels include at least a first water flow channel, a second water flow channel and a refrigerant channel.

[0006] In one embodiment, the heat exchange channels are arranged from inside to outside along the radial direction of the heat exchange tube.

[0007] In one embodiment, along the radial direction of the heat exchange tube, the heat exchange channel located at the innermost side passes through the center of the heat exchange tube.

[0008] In one embodiment, the heat exchange tube has a partition wall separating two adjacent heat exchange channels, and a cross-sectional shape of at least one of the partition walls is wavy or sawtooth.

[0009] In one embodiment, the heat exchange tube has a partition wall separating two adjacent heat exchange channels, and the cross-sectional shape of at least one of the partition walls is a single-sided wave shape or a single-sided sawtooth shape.

[0010] In one embodiment, the first water flow channel, the refrigerant channel and the second water flow channel are arranged in sequence from inside to outside along the radial direction of the heat exchange tube.

[0011] In one embodiment, the refrigerant channel, the first water flow channel, and the second water flow channel are arranged in sequence from inside to outside along the radial direction of the heat exchange tube.

[0012] In one embodiment, the number of the refrigerant channels is two, and the first water flow channel, the two refrigerant channels, and the second water flow channel are arranged in sequence from inside to outside along the radial direction of the heat exchange tube.

[0013] In one embodiment, the number of the refrigerant channels is two, and the first water flow channel, the second water flow channel, and the two refrigerant channels are arranged in sequence from inside to outside along the radial direction of the heat exchange tube.

[0014] In one embodiment, the number of the refrigerant channels is two, and the first water flow channel, one of the refrigerant channels, the second water flow channel, and another of the refrigerant channels are arranged in sequence from inside to outside along the radial direction of the heat exchange tube.

[0015] Another embodiment of the present application provides a heat pump system, comprising: an outdoor heat exchanger, a floor heating coil, a domestic water tank, a refrigerant pipeline, a first water supply pipeline, a second water supply pipeline, and the water-fluorine heat exchanger described above;

[0016] The refrigerant channel is connected to the external heat exchanger through the refrigerant pipeline, the water outlet of one of the first water flow channel and the second water flow channel is connected to the floor heating coil through the first water supply pipeline, and the other water outlet is connected to the domestic water tank through the second water supply pipeline.

[0017] Another embodiment of the present application provides a heat pump system, comprising: an outdoor heat exchanger, a floor heating coil, a domestic water tank, a refrigerant pipeline, a first water supply pipeline, a second water supply pipeline, and the water-fluorine heat exchanger described above;

[0018] There are two water-fluorine heat exchangers, and the refrigerant channel of each water-fluorine heat exchanger is connected to the external heat exchanger through the refrigerant pipeline. The water outlet of the first water flow channel and the water outlet of the second water flow channel of one of the water-fluorine heat exchangers are connected to the floor heating coil through the first water supply pipeline, and the water outlet of the first water flow channel and the water outlet of the second water flow channel of another water-fluorine heat exchanger are connected to the domestic water tank through the second water supply pipeline.

[0019] In one embodiment, the first water supply pipeline and the second water supply pipeline exchange heat by contact.

[0020] In one embodiment, the heat pump system includes an electric heater, the electric heater includes a housing, a first electric heating element and a second electric heating element, the housing has a first heating chamber and a second heating chamber separated from each other, the first electric heating element is arranged in the first heating chamber, and the second electric heating element is arranged in the second heating chamber;

[0021] The first heating chamber is arranged on the first water supply pipeline, and the second heating chamber is arranged on the second water supply pipeline.

[0022] In one embodiment, one of the first heating chamber and the second heating chamber surrounds the outer circumference of the other one.

[0023] An embodiment of the present application provides a heat pump system. The water-fluorine heat exchanger is provided with a heat exchange tube having a first water flow channel, a second water flow channel and a refrigerant channel, so that the refrigerant in the refrigerant channel can exchange heat with the water in the first water flow channel and the second water flow channel respectively. After the heat pump system is provided with the water-fluorine heat exchanger, hot water can be provided to the floor heating coil and the domestic water tank respectively through the water-fluorine heat exchanger. As a result, the function of domestic water use can be added to the original air conditioning and floor heating functions of the heat pump system, making the functions of the heat pump system more diverse to meet the various needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a simplified structural diagram of a heat pump system according to an embodiment of the present application, and a water source is also shown in the figure;

[0025] Figure 2 This is a simplified structural diagram of another heat pump system according to an embodiment of the present application, in which a water source is also shown;

[0026] Figure 3 for Figure 1 The schematic diagram of the structure of the heat exchange tube of the water-fluorine heat exchanger shown;

[0027] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0028] Figure 5 This is a partial structural diagram of the heat exchange tube of the second water-fluorine heat exchanger of the embodiment of the present application. The positions shown in the figure are Figure 3 The A of is roughly the same;

[0029] Figure 6 This is a partial structural diagram of the heat exchange tube of the third water-fluorine heat exchanger of the embodiment of the present application. The positions shown in the figure are Figure 3 The A of is roughly the same;

[0030] Figure 7 This is a partial structural diagram of the heat exchange tubes of the fourth water-fluorine heat exchanger of the present application embodiment. The positions shown in the figure are Figure 3 The A of is roughly the same;

[0031] Figure 8 This is a partial structural diagram of the heat exchange tube of the fifth water-fluorine heat exchanger of the embodiment of the present application. The positions shown in the figure are Figure 3 The A of is roughly the same;

[0032] Fig. 9This is a partial structural diagram of the heat exchange tube of the sixth water-fluorine heat exchanger of the embodiment of the present application. The positions shown in the figure are Figure 3 The A of is roughly the same;

[0033] Fig.10 for Figure 1 The structural schematic diagram of the electric heater shown;

[0034] Fig.11 for Fig.10 A schematic structural diagram of the electric heater from another perspective shown;

[0035] Fig.12 for Fig.11 BB cross-sectional view.

[0036] Description of Reference Numerals

[0037] 100, heat pump system; 101, water-fluorine heat exchanger; 1011, heat exchange tube; 1011a, heat exchange channel; 1011a1, first water flow channel; 1011a2, second water flow channel; 1011a3, refrigerant channel; 1011b, partition wall; 102, outdoor heat exchanger; 103, floor heating coil; 104, domestic water tank; 105, refrigerant pipeline; 106, first water supply pipeline; 107, second water supply pipeline Water pipeline; 108, water supply valve; 109, booster pump; 110, first water flow switch; 111, second water flow switch; 112, electric heater; 1121, shell; 1121a, first heating chamber; 1121b, second heating chamber; 11211, support plate; 11212, inner chamber shell; 11213, outer chamber shell; 1122, first electric heating element; 1123, second electric heating element; 200, water source. DETAILED DESCRIPTION

[0038] An embodiment of the present application provides a water-fluorine heat exchanger 101, see Figures 1 to 4 The water-fluorine heat exchanger 101 includes a heat exchange tube 1011, and the heat exchange tube 1011 has a plurality of heat exchange channels 1011a separated from each other. The plurality of heat exchange channels 1011a at least include a first water flow channel 1011a1, a second water flow channel 1011a2 and a refrigerant channel 1011a3.

[0039] Specifically, the heat exchange channel 1011a is used for allowing fluid to pass through and for the fluid in the heat exchange channel 1011a to exchange heat. The heat exchange channels 1011a are separated from each other, which means that the heat exchange channels 1011a are not connected, and the fluid in one heat exchange channel 1011a will not flow into another heat exchange channel 1011a. Among them, the first water flow channel 1011a1 and the second water flow channel 1011a2 are respectively used for allowing water to pass through, and the refrigerant channel 1011a3 is used for allowing refrigerant to pass through, and the refrigerant in the refrigerant channel 1011a3 exchanges heat with the water in the first water flow channel 1011a1 and the second water flow channel 1011a2.

[0040] Another embodiment of the present application provides a heat pump system 100, see Figure 1 The heat pump system 100 includes an outdoor heat exchanger 102, a floor heating coil 103, a domestic water tank 104, a refrigerant pipeline 105, a first water supply pipeline 106, a second water supply pipeline 107, and a water-fluorine heat exchanger 101 provided in any embodiment of the present application. The outdoor heat exchanger 102 is arranged in the air-conditioning outdoor unit of the heat pump system 100, and the refrigerant channel 1011a3 is connected with the outdoor heat exchanger 102 through the refrigerant pipeline 105. A compressor is also arranged in the air-conditioning outdoor unit. After the compressor is turned on, the refrigerant can circulate between the refrigerant channel 1011a3 and the outdoor heat exchanger 102 through the refrigerant pipeline 105.

[0041] Please continue reading Figure 1 , Figure 3 and Figure 4 One of the water outlets of the first water flow channel 1011a1 and the second water flow channel 1011a2 is connected to the floor heating coil 103 through the first water supply pipeline 106, and the other water outlet is connected to the domestic water tank 104 through the second water supply pipeline 107.

[0042] The domestic water tank 104 is a tank for providing domestic water.

[0043] According to design requirements, the water outlet of the first water flow channel 1011a1 can be connected to the floor heating coil 103 through the first water supply pipe 106, and the water outlet of the second water flow channel 1011a2 can be connected to the domestic water tank 104 through the second water supply pipe 107. In other words, the water in the first water flow channel 1011a1 flows into the floor heating coil 103, and the water in the second water flow channel 1011a2 flows into the domestic water tank 104. Alternatively, the water outlet of the second water flow channel 1011a2 can be connected to the floor heating coil 103 through the first water supply pipe 106, and the water outlet of the first water flow channel 1011a1 can be connected to the domestic water tank 104 through the second water supply pipe 107. In other words, the water in the second water flow channel 1011a2 flows into the floor heating coil 103, and the water in the first water flow channel 1011a1 flows into the domestic water tank 104.

[0044] It should be noted that the water flowing into the floor heating coil 103 can circulate between the floor heating coil 103 and the water-fluorine heat exchanger 101, that is, if the floor heating coil 103 is connected to the first water flow channel 1011a1, the water flowing out of the floor heating coil 103 will still flow into the first water flow channel 1011a1 through the corresponding pipeline; if the floor heating coil 103 is connected to the second water flow channel 1011a2, the water flowing out of the floor heating coil 103 will still flow into the second water flow channel 1011a2 through the corresponding pipeline.

[0045] See also Figure 1 The water source 200 can be connected to the water inlet of the first water flow channel 1011a1 and the water inlet of the second water flow channel 1011a2 respectively. The water source 200 can not only supply water to the domestic water tank 104, but also be used in conjunction with the water replenishment valve 108 to replenish water for the floor heating coil 103.

[0046] See also Figure 1 A first water flow switch 110 can be set on the first water supply pipeline 106, and a second water flow switch 111 can be set on the second water supply pipeline 107. After the first water flow switch 110 is turned on, water can flow from the first water supply pipeline 106 into the floor heating coil 103. After the second water flow switch 111 is turned on, water can flow from the second water supply pipeline 107 into the domestic water tank 104.

[0047] Please continue reading Figure 1 A booster pump 109 may also be provided on the first water supply pipeline 106 to increase the water pressure of the water flow circulating between the floor heating coil 103 and the water-fluorine heat exchanger 101 .

[0048] Since the refrigerant in the refrigerant channel 1011a3 of the water-fluorine heat exchanger 101 can exchange heat with the water in the first water flow channel 1011a1 and the second water flow channel 1011a2, the water in the first water flow channel 1011a1 and the second water flow channel 1011a2 can be heated into hot water through heat exchange, and the hot water in one water flow channel flows into the floor heating coil 103 through the first water supply pipe 106 to realize the floor heating function of providing heating for users, and the hot water in the other water flow channel flows into the domestic water tank 104 through the second water supply pipe 107 to realize the domestic water function of providing domestic hot water for users.

[0049] It should be noted that the heat pump system 100 can only turn on the floor heating function, or only turn on the domestic water function, or turn on the floor heating function and the domestic water function at the same time.

[0050] In addition, the heat pump system 100 is also provided with an air conditioner indoor unit, and an indoor heat exchanger is provided in the air conditioner indoor unit. When the air conditioner indoor unit is turned on, the refrigerant circulates between the indoor heat exchanger and the outdoor heat exchanger 102, so as to realize cooling and heating of the air conditioner indoor unit. The setting method of the air conditioner indoor unit can adopt any method in the related art, which will not be described in detail here.

[0051] Another embodiment of the present application provides a heat pump system 100, see Figure 2 The heat pump system 100 includes an outdoor heat exchanger 102, a floor heating coil 103, a domestic water tank 104, a refrigerant pipeline 105, a first water supply pipeline 106, a second water supply pipeline 107 and a water-fluorine heat exchanger 101 provided in any embodiment of the present application.

[0052] There are two water-fluorine heat exchangers 101, and the refrigerant channel 1011a3 of each water-fluorine heat exchanger 101 is connected to the external heat exchanger 102 through the refrigerant pipeline 105. That is to say, the two water-fluorine heat exchangers 101 are connected in parallel, and the refrigerant circulates between the refrigerant channel 1011a3 of each water-fluorine heat exchanger 101 and the external heat exchanger 102 through the refrigerant pipeline 105.

[0053] Both water-fluorine heat exchangers 101 may be disposed in the air-conditioning indoor unit of the heat pump system 100 , or only one water-fluorine heat exchanger 101 may be disposed in the air-conditioning indoor unit of the heat pump system 100 .

[0054] Please continue reading Figures 2 to 4 , the water outlet of the first water flow channel 1011a1 and the water outlet of the second water flow channel 1011a2 of one water-fluorine heat exchanger 101 are connected to the floor heating coil 103 through the first water supply pipe 106, and the water outlet of the first water flow channel 1011a1 and the water outlet of the second water flow channel 1011a2 of another water-fluorine heat exchanger 101 are connected to the domestic water tank 104 through the second water supply pipe 107. That is to say, the water flows in the first water flow channel 1011a1 and the second water flow channel 1011a2 of one water-fluorine heat exchanger 101 both flow into the floor heating coil 103, and the water flows in the first water flow channel 1011a1 and the second water flow channel 1011a2 of the other water-fluorine heat exchanger 101 both flow into the domestic water tank 104, which is equivalent to one water-fluorine heat exchanger 101 being only used to supply water to the floor heating coil 103, and the other water-fluorine heat exchanger 101 being only used to supply water to the domestic water tank 104.

[0055] By setting up two water-fluorine heat exchangers 101, the hot water flowing out of one water-fluorine heat exchanger 101 can flow into the floor heating coil 103 through the first water supply pipe 106 to achieve heating, and the hot water flowing out of the other water-fluorine heat exchanger 101 can flow into the domestic water tank 104 through the second water supply pipe 107 to provide domestic hot water for users.

[0056] The difference between the heat pump system 100 of this embodiment and the heat pump system 100 of the previous embodiment mainly lies in the number of water-fluorine heat exchangers 101 and the connection method between the water-fluorine heat exchanger 101 and the floor heating coil 103, the domestic water tank 104 and the outdoor heat exchanger 102. The other structures are roughly the same as the heat pump system 100 of the previous embodiment and will not be repeated here.

[0057] The water-fluorine heat exchanger 101 of the embodiment of the present application is provided with a heat exchange tube 1011 having a first water flow channel 1011a1, a second water flow channel 1011a2 and a refrigerant channel 1011a3, so that the refrigerant in the refrigerant channel 1011a3 can exchange heat with the water flows in the first water flow channel 1011a1 and the second water flow channel 1011a2 respectively. After the heat pump system 100 is provided with the water-fluorine heat exchanger 101, hot water can be provided to the floor heating coil 103 and the domestic water tank 104 respectively through the water-fluorine heat exchanger 101. In this way, the function of domestic water use can be added to the original air conditioning and floor heating functions of the heat pump system 100, so that the functions of the heat pump system 100 are more diverse to meet the various needs of users.

[0058] In addition, compared with setting up one water-fluorine heat exchanger 101, the heat pump system 100 sets up two water-fluorine heat exchangers 101, and one water-fluorine heat exchanger 101 is used to supply water to the floor heating coil 103, and the other water-fluorine heat exchanger 101 is used to supply water to the domestic water tank 104, which can improve the heat exchange efficiency, reduce heat loss, and achieve better energy-saving effect.

[0059] It should be noted that the water-fluorine heat exchanger 101 of the embodiment of the present application is not limited to being used in the heat pump system 100 with floor heating and air conditioning functions. The water-fluorine heat exchanger 101 can also be used in any other equipment that requires the use of refrigerant and water for heat exchange.

[0060] In one embodiment, please refer to Figure 4 The heat exchange channels 1011a can be arranged from inside to outside along the radial direction of the heat exchange tube 1011, that is, among two adjacent heat exchange channels 1011a, one heat exchange channel 1011a can surround the outer circumference of the other heat exchange channel 1011a to facilitate heat exchange of the fluid in the heat exchange channel 1011a.

[0061] For example, see Figure 4The first water flow channel 1011a1, the refrigerant channel 1011a3 and the second water flow channel 1011a2 can be arranged in sequence from the inside to the outside along the radial direction of the heat exchange tube 1011, that is, the refrigerant channel 1011a3 can be located between the first water flow channel 1011a1 and the second water flow channel 1011a2, so that the refrigerant in the refrigerant channel 1011a3 can directly exchange heat with the water flow in the first water flow channel 1011a1 or the water flow in the second water flow channel 1011a2.

[0062] For example, see Figure 5 , the refrigerant channel 1011a3, the first water flow channel 1011a1 and the second water flow channel 1011a2 can also be arranged in sequence from the inside to the outside along the radial direction of the heat exchange tube 1011, that is, the first water flow channel 1011a1 and the second water flow channel 1011a2 can both be located on the outside of the refrigerant channel 1011a3, and the refrigerant in the refrigerant channel 1011a3 directly exchanges heat with the water flow in the first water flow channel 1011a1, and the refrigerant in the refrigerant channel 1011a3 indirectly exchanges heat with the water flow in the second water flow channel 1011a2 through the first water flow channel 1011a1 (the first water flow channel 1011a1 may or may not have water).

[0063] In other embodiments, the first water flow channel 1011a1, the second water flow channel 1011a2 and the refrigerant channel 1011a3 may be arranged in sequence from the inside to the outside along the radial direction of the heat exchange tube 1011, that is, the first water flow channel 1011a1 and the second water flow channel 1011a2 may also be located on the inner side of the refrigerant channel 1011a3.

[0064] For example, see Figure 7 The heat exchange tube 1011 may have two refrigerant channels 1011a3, and the first water flow channel 1011a1, the two refrigerant channels 1011a3 and the second water flow channel 1011a2 may be arranged in sequence from the inside to the outside along the radial direction of the heat exchange tube 1011, that is, the first water flow channel 1011a1 may be located on the inner side of the two refrigerant channels 1011a3, and the second water flow channel 1011a2 may be located on the outer side of the two refrigerant channels 1011a3, and the refrigerants in the two refrigerant channels 1011a3 may exchange heat with the water flow in the first water flow channel 1011a1 or the water flow in the second water flow channel 1011a2.

[0065] In addition, it should be noted that, for the heat exchange tube 1011 having two refrigerant channels 1011a3 , each refrigerant channel 1011a3 is connected to the external heat exchanger 102 through the refrigerant pipeline 105 .

[0066] For example, see Figure 8For the heat exchange tube 1011 having two refrigerant channels 1011a3, the first water flow channel 1011a1, the second water flow channel 1011a2 and the two refrigerant channels 1011a3 may also be arranged in sequence from the inside to the outside along the radial direction of the heat exchange tube 1011, that is, the first water flow channel 1011a1 and the second water flow channel 1011a2 may both be located on the inner side of the two refrigerant channels 1011a3.

[0067] In other embodiments, the two refrigerant channels 1011a3, the first water flow channel 1011a1 and the second water flow channel 1011a2 may be arranged in sequence from the inside to the outside along the radial direction of the heat exchange tube 1011, that is, the first water flow channel 1011a1 and the second water flow channel 1011a2 may both be located on the outside of the two refrigerant channels 1011a3.

[0068] For example, see Fig. 9 For the heat exchange tube 1011 having two refrigerant channels 1011a3, the first water flow channel 1011a1, one of the refrigerant channels 1011a3, the second water flow channel 1011a2 and the other of the refrigerant channels 1011a3 can also be arranged in sequence from the inside to the outside along the radial direction of the heat exchange tube 1011, that is, one refrigerant channel 1011a3 is located between the first water flow channel 1011a1 and the second water flow channel 1011a2, and the other refrigerant channel 1011a3 is located on the side of the second water flow channel 1011a2 away from the first water flow channel 1011a1.

[0069] In other embodiments, one of the refrigerant channels 1011a3, the first water flow channel 1011a1, the other refrigerant channel 1011a3 and the second water flow channel 1011a2 may be arranged in sequence from the inside to the outside along the radial direction of the heat exchange tube 1011, that is, the first water flow channel 1011a1 is located between the two refrigerant channels 1011a3, and the second water flow channel 1011a2 is located on the side of the other refrigerant channel 1011a3 away from the first water flow channel 1011a1.

[0070] In one embodiment, please refer to Figure 4, along the radial direction of the heat exchange tube 1011, the heat exchange channel 1011a located at the innermost side can pass through the center of the heat exchange tube 1011, that is, the cross-sectional shape of the heat exchange channel 1011a located at the innermost side is not a ring with a closed area inside, for example, the cross-sectional shape of the heat exchange channel 1011a located at the innermost side can be circular, elliptical, polygonal, etc. This arrangement can not only make full use of the space inside the heat exchange tube 1011 to arrange each heat exchange channel 1011a, but also facilitate increasing the size of the cross-sectional area of ​​the heat exchange channel 1011a located at the innermost side, so as to avoid the cross-sectional area of ​​the heat exchange channel 1011a located at the innermost side being too small, resulting in too small flow rate of the fluid in the heat exchange channel 1011a.

[0071] Please continue reading Figure 4 The heat exchange tube 1011 has a partition wall 1011b separating two adjacent heat exchange channels 1011a. In one embodiment, the cross-sectional shape of at least one partition wall 1011b may be wavy or serrated, that is, the cross-sectional shape of one partition wall 1011b may be wavy or serrated, or the cross-sectional shape of some partition walls 1011b greater than one may be wavy or serrated, or the cross-sectional shape of all partition walls 1011b may be wavy or serrated.

[0072] For example, Figure 4 Three heat exchange channels 1011a are arranged in the heat exchange tube 1011 shown. Along the radial direction of the heat exchange tube 1011, the cross-sectional shape of the partition wall 1011b between the second heat exchange channel 1011a and the third heat exchange channel 1011a from the inside to the outside is sawtooth-shaped. In other embodiments, the cross-sectional shape of the partition wall 1011b may also be wavy.

[0073] In other embodiments, along the radial direction of the heat exchange tube 1011, the cross-sectional shape of the partition wall 1011b between the first heat exchange channel 1011a and the second heat exchange channel 1011a from the inside to the outside may be sawtooth or sawtooth, or the cross-sectional shape of all the partition walls 1011b may be sawtooth or sawtooth.

[0074] The cross-sectional shape of the partition wall 1011b is set to be wavy or sawtooth, which can increase the heat exchange area of ​​the wall surface of the partition wall 1011b and further improve the heat exchange efficiency.

[0075] In another embodiment, see Figure 6 The cross-sectional shape of at least one partition wall 1011b may also be unilaterally wavy or unilaterally serrated, that is, only one side of the partition wall 1011b is wavy or serrated, while the other side is not wavy or serrated.

[0076] For example, Figure 6 The heat exchange tube 1011 shown is also provided with three heat exchange channels 1011a. Along the radial direction of the heat exchange tube 1011, the wall surface of the partition wall 1011b between the second heat exchange channel 1011a and the third heat exchange channel 1011a from the inside to the outside, close to the second heat exchange channel 1011a, is in a sawtooth shape. In other embodiments, the wall surface of the partition wall 1011b close to the second heat exchange channel 1011a may also be in a wavy shape. Since the third heat exchange channel 1011a surrounds the outside of the second heat exchange channel 1011a, the wall surface of the partition wall 1011b close to the third heat exchange channel 1011a has a relatively large area. Therefore, the wall surface of the partition wall 1011b close to the second heat exchange channel 1011a is arranged in a wavy or sawtooth shape, which can increase the heat exchange area of ​​the wall surface and thus improve the heat exchange efficiency.

[0077] In other embodiments, the wall surface of the partition wall 1011b close to the third heat exchange channel 1011a may be wavy or sawtoothed, or, along the radial direction of the heat exchange tube 1011, the cross-sectional shape of the partition wall 1011b between the first heat exchange channel 1011a and the second heat exchange channel 1011a from the inside to the outside may be unilaterally wavy or unilaterally sawtoothed, or the cross-sectional shape of all the partition walls 1011b may be unilaterally wavy or unilaterally sawtoothed.

[0078] In one embodiment, the first water supply pipeline 106 and the second water supply pipeline 107 can exchange heat by contacting each other.

[0079] Specifically, the first water supply pipe 106 is connected to the floor heating coil 103, and the second water supply pipe 107 is connected to the domestic water tank 104. During the use of floor heating, hot water will continue to flow from the first water supply pipe 106 into the floor heating coil 103, but hot water will not continue to flow from the second water supply pipe 107 into the domestic water tank 104. When there is enough hot water in the domestic water tank 104, some hot water will remain in the second water supply pipe. Therefore, the first water supply pipe 106 and the second water supply pipe 107 are in contact, and the heat of the hot water in the first water supply pipe can be transferred to the hot water in the second water supply pipe to ensure that the hot water remaining in the second water supply pipe will not affect the subsequent use of the user due to the decrease in temperature.

[0080] In one embodiment, please refer to Figure 1 , Figure 2 , Figures 10 to 12The heat pump system 100 may also be provided with an electric heater 112, which includes a housing 1121, a first electric heating element 1122, and a second electric heating element 1123. The housing 1121 has a first heating chamber 1121a and a second heating chamber 1121b that are separated from each other, that is, the first heating chamber 1121a and the second heating chamber 1121b are not connected. The first electric heating element 1122 is disposed in the first heating chamber 1121a, and the second electric heating element 1123 is disposed in the second heating chamber 1121b. The first heating chamber 1121a is disposed on the first water supply pipeline 106, and the second heating chamber 1121b is disposed on the second water supply pipeline 107.

[0081] Specifically, the hot water flowing into the first water supply pipeline 106 from the water-fluorine heat exchanger 101 first flows into the first heating chamber 1121a, and then flows into the floor heating coil 103 from the first heating chamber 1121a, and the hot water flowing into the second water supply pipeline 107 from the water-fluorine heat exchanger 101 first flows into the second heating chamber 1121b, and then flows into the domestic water tank 104 from the second heating chamber 1121b. When the electric heater 112 is turned on, the hot water in the first heating chamber 1121a can be further heated by the first electric heating element 1122, and the hot water in the second heating chamber 1121b can be further heated by the second electric heating element 1123, so as to ensure that the temperature of the hot water flowing into the floor heating coil 103 and the domestic water tank 104 can meet the use requirements.

[0082] The type and structure of the first electric heating element 1122 and the second electric heating element 1123 are not limited, as long as they can heat the hot water in the first heating chamber 1121a and the second heating chamber 1121b respectively. For example, please refer to Fig.12 The first electric heating element 1122 and the second electric heating element 1123 are both spiral heating tubes.

[0083] To facilitate the arrangement of the first heating chamber 1121a and the second heating chamber 1121b, please refer to Fig.12 , the second heating chamber 1121b can surround the outer circumference of the first heating chamber 1121a.

[0084] For example, see Fig.11 and Fig.12The shell 1121 may include a support plate 11211, an inner cavity shell 11212 and an outer cavity shell 11213. During the assembly of the electric heater 112, the first electric heating element 1122 may be first fixed on the support plate 11211, and then the inner cavity shell 11212 may be covered on the first electric heating element 1122 and fixedly connected to the support plate 11211, and then the second electric heating element 1123 may be fixed to the outside of the inner cavity shell 11212, and finally the outer cavity shell 11213 may be sleeved on the inner cavity shell 11212 and fixedly connected to the support plate 11211. The space inside the inner cavity shell 11212 is the first heating chamber 1121a, and the space between the inner cavity shell 11212 and the outer cavity shell 11213 is the second heating chamber 1121b surrounding the outer peripheral side of the first heating chamber 1121a.

[0085] In some other embodiments, the first heating chamber 1121a may surround the outer circumference of the second heating chamber 1121b.

[0086] Figure 1 and Figure 2 The booster pump 109 is arranged between the electric heater 112 and the floor heating coil 103. In other embodiments, the booster pump 109 can also be arranged between the water-fluorine heat exchanger 101 and the electric heater 112.

[0087] During the use of the heat pump system 100, the electric heater 112 and / or the compressor can be controlled as needed to achieve corresponding floor heating functions and / or domestic water functions.

[0088] Exemplarily, when the floor heating function is turned on, the water temperature of the water flowing into the floor heating coil 103 can be detected first. If the water temperature reaches the first set water temperature, the electric heater 112 and the compressor are not turned on. If the water temperature does not reach the first set water temperature, the compressor can be turned on to exchange heat through the water-fluorine heat exchanger 101. When the water temperature reaches the first set water temperature, the compressor can be switched to an energy-saving state. During the use of floor heating, if the water temperature decays too quickly, for example, the temperature difference between the decayed water temperature and the first set water temperature is greater than 1 / 4 of the first set water temperature, the electric heater 112 can be turned on for heating until the water temperature reaches the first set water temperature.

[0089] For example, when the domestic water function is turned on, the water temperature of the water flowing into the domestic water tank 104 can be detected first. If the water temperature reaches the second set water temperature, the electric heater 112 and the compressor are not turned on. If the water temperature does not reach the second set water temperature, the compressor can be turned on first to exchange heat through the water-fluorine heat exchanger 101. When the compressor is turned on for a set time, the electric heater 112 is turned on. When the water temperature reaches the second set water temperature, the electric heater 112 can be turned off first, and then the compressor is switched to an energy-saving state.

[0090] It should be noted that the electric heater 112 and the compressor are not limited to the control method described in the above embodiment. In other embodiments, the electric heater 112 and the compressor can also adopt other control methods as long as the floor heating function and the domestic water function can be achieved.

[0091] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0092] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A heat pump system, characterized in that: include: Outdoor heat exchanger; Floor heating coils; Domestic water tank; Refrigerant pipeline; The first water supply pipeline; Second water supply pipeline; A water-fluorine heat exchanger, the water-fluorine heat exchanger comprising a heat exchange tube, the heat exchange tube having a plurality of mutually separated heat exchange channels and a partition wall separating two adjacent heat exchange channels, the plurality of heat exchange channels at least comprising a first water flow channel, a second water flow channel and a refrigerant channel; the refrigerant channel is connected to the external heat exchanger through the refrigerant pipeline, the water outlet of one of the first water flow channel and the second water flow channel is connected to the floor heating coil through the first water supply pipeline, and the water outlet of the other one is connected to the domestic water tank through the second water supply pipeline; An electric heater is used to heat the hot water flowing out of the water-fluorine heat exchanger.

2. A heat pump system, characterized in that: include: Outdoor heat exchanger; Floor heating coils; Domestic water tank; Refrigerant pipeline; The first water supply pipeline; Second water supply pipeline; A water-fluorine heat exchanger, the water-fluorine heat exchanger comprising a heat exchange tube, the heat exchange tube having a plurality of mutually separated heat exchange channels and a partition wall separating two adjacent heat exchange channels, the plurality of heat exchange channels at least comprising a first water flow channel, a second water flow channel and a refrigerant channel; the number of the water-fluorine heat exchangers is two, the refrigerant channel of each water-fluorine heat exchanger is respectively connected to the external heat exchanger through the refrigerant pipeline, the water outlet of the first water flow channel and the water outlet of the second water flow channel of one of the water-fluorine heat exchangers are connected to the floor heating coil through the first water supply pipeline, and the water outlet of the first water flow channel and the water outlet of the second water flow channel of another water-fluorine heat exchanger are connected to the domestic water tank through the second water supply pipeline; An electric heater is used to heat the hot water flowing out of the water-fluorine heat exchanger.

3. The heat pump system according to claim 1 or 2, characterized in that: The heat exchange channels are arranged from inside to outside along the radial direction of the heat exchange tube.

4. The heat pump system according to claim 3, characterized in that: Along the radial direction of the heat exchange tube, the heat exchange channel located at the innermost side runs through the center of the heat exchange tube.

5. The heat pump system according to claim 3, characterized in that: The heat exchange tube has a partition wall separating two adjacent heat exchange channels; The cross-sectional shape of at least one of the partition walls is wavy or sawtooth; and / or, The cross-sectional shape of at least one of the partition walls is unilaterally wavy or unilaterally sawtooth.

6. The heat pump system according to claim 3, characterized in that: The first water flow channel, the refrigerant channel and the second water flow channel are arranged in sequence from inside to outside along the radial direction of the heat exchange tube; or, The refrigerant channel, the first water flow channel and the second water flow channel are arranged in sequence from inside to outside along the radial direction of the heat exchange tube.

7. The heat pump system according to claim 3, characterized in that: The number of the refrigerant channels is two; The first water flow channel, the two refrigerant channels and the second water flow channel are arranged in sequence from inside to outside along the radial direction of the heat exchange tube; or, The first water flow channel, the second water flow channel and the two refrigerant channels are arranged in sequence from inside to outside along the radial direction of the heat exchange tube; or, The first water flow channel, one of the refrigerant channels, the second water flow channel and another of the refrigerant channels are arranged in sequence from inside to outside along the radial direction of the heat exchange tube.

8. The heat pump system according to claim 1 or 2, characterized in that: The first water supply pipeline and the second water supply pipeline exchange heat by contacting each other.

9. The heat pump system according to claim 1 or 2, characterized in that: The electric heater comprises a housing, a first electric heating element and a second electric heating element, the housing has a first heating chamber and a second heating chamber separated from each other, the first electric heating element is arranged in the first heating chamber, and the second electric heating element is arranged in the second heating chamber; The first heating chamber is arranged on the first water supply pipeline, and the second heating chamber is arranged on the second water supply pipeline.

10. The heat pump system according to claim 9, characterized in that: One of the first heating chamber and the second heating chamber surrounds the outer circumference of the other one.

Images