Household integrated coupling heat exchange system

Abstract

The invention discloses a household type integrated coupling heat exchange system which comprises a box body, and a first cavity and a second cavity which are separated in the vertical direction are formed in the box body; the first chamber is positioned below the second chamber; at least part of the heat pump is located in the first cavity; the gas furnace is arranged in the second chamber; a water outlet of the gas furnace is connected with a user side; the heat exchanger is arranged in the box body; the primary side of the heat exchanger is connected with the heat pump to form a refrigerant circulation loop; a secondary side outlet of the heat exchanger is connected with a water inlet of the gas furnace, and a secondary side inlet of the heat exchanger is connected with an external water source. The gas furnace and the heat pump are coupled through the heat exchanger, energy of the heat pump is utilized while the refrigeration efficiency of the heat pump is improved, so that the energy consumption of the gas furnace is reduced, an integrated coupling structure is formed in appearance, the vertical space is fully utilized through a vertical overlapping structure of the gas furnace and the heat pump in the box body, and the transverse area is effectively released; and the overall layout optimization of a household machine room or an equipment room is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange systems, in particular to a household integrated coupled heat exchange system. BACKGROUND

[0002] At present, in the cold and hot and domestic hot water supply of a family or a building, the traditional scheme usually adopts a heat pump system cooperating with a gas stove to run together: the heat pump is responsible for cold and heat supply, and the gas stove is responsible for the supply of domestic hot water.

[0003] The heat pump in the prior art generally comprises a compressor, a condenser and an evaporator. In the working process, the refrigerant is pressurized by the compressor, flows through the condenser to release heat, and then absorbs heat through the evaporator to realize cold and heat regulation.

[0004] However, in the refrigeration mode, the heat pump system directly discharges the generated heat to the outdoor through the condenser and the fan, which not only needs to consume additional electric energy to drive the fan, but also makes this part of heat not be effectively utilized, causing the overall system energy efficiency to be reduced and the energy consumption burden to be increased. At the same time, the gas stove in the supply of domestic hot water, especially in the "zero cold water" operation mode, its heat preservation process depends on continuous energy consumption, and the energy consumption is high, which further improves the overall energy consumption level of the user side.

[0005] In summary, the existing cold and hot and domestic hot water supply system still has optimization space in energy utilization efficiency, and how to realize system cooperation and energy recovery and reduce energy consumption has become a technical problem to be solved.

[0006] Therefore, the prior art still needs to be improved and developed. SUMMARY

[0007] The technical problem to be solved by the present application is to provide a household integrated coupled heat exchange system aiming at improving the refrigeration efficiency of the heat pump and utilizing the energy of the heat pump to reduce the energy consumption of the gas stove, in view of the above defects of the prior art.

[0008] The technical solution adopted by the present application to solve the technical problem is as follows:

[0009] A household integrated coupled heat exchange system, comprising:

[0010] a box body, a first chamber and a second chamber being separated in a vertical direction in the box body, the first chamber being located below the second chamber;

[0011] a heat pump, at least partially arranged in the first chamber;

[0012] a gas stove, arranged in the second chamber, a water outlet of the gas stove being connected with a user end;

[0013] A heat exchanger is arranged in the cabinet; a primary side of the heat exchanger is connected with the heat pump and forms a refrigerant circulation loop; a secondary side outlet of the heat exchanger is connected with a water inlet of the gas stove, and a secondary side inlet of the heat exchanger is connected with an external water source.

[0014] The household integrated coupled heat exchange system further comprises:

[0015] A three-way valve is arranged in the cabinet; an inlet of the three-way valve is connected with an external water source, a first outlet of the three-way valve is connected with a primary side inlet of the heat exchanger, and a second outlet of the three-way valve is connected with a water inlet of the gas stove.

[0016] The household integrated coupled heat exchange system further comprises:

[0017] A water inlet pipeline is arranged; an outlet of the water inlet pipeline is connected with an inlet of the three-way valve, and an inlet of the water inlet pipeline is connected with an external water source.

[0018] The inlet of the water inlet pipeline is lower than the heat exchanger, the water inlet of the gas stove, and the water outlet of the gas stove.

[0019] The household integrated coupled heat exchange system further comprises:

[0020] A water outlet pipeline is arranged; an inlet of the water outlet pipeline is connected with a water outlet of the gas stove, and an outlet of the water outlet pipeline is connected with a user end.

[0021] A third chamber is arranged on the same side of the first chamber and the second chamber in a horizontal direction; the heat exchanger is arranged in the third chamber; the outlet of the water outlet pipeline and the inlet of the water inlet pipeline are arranged on a side wall of the third chamber.

[0022] The household integrated coupled heat exchange system further comprises:

[0023] An electric control device is arranged in the third chamber and is electrically connected with the heat pump and the gas stove.

[0024] The household integrated coupled heat exchange system further comprises:

[0025] An air duct is arranged in the cabinet.

[0026] An exhaust fan is arranged in the air duct.

[0027] A first air inlet is arranged on a side wall of the second chamber close to the third chamber, and the first air inlet is communicated with the air duct; a second air inlet is arranged on an outer wall of the second chamber, and the second air inlet is communicated with the air duct.

[0028] The household integrated coupled heat exchange system further comprises:

[0029] The heat dissipation fin is arranged in the air duct and upstream of the exhaust fan along the air flow direction.

[0030] The household integrated coupled heat exchange system further comprises:

[0031] The flue gas condensing heat exchanger is arranged in the box body; a primary side inlet of the flue gas condensing heat exchanger is connected with the flue gas outlet of the gas stove, and a secondary side inlet of the flue gas condensing heat exchanger is connected with the second outlet of the three-way valve and the secondary side outlet of the heat exchanger, respectively; and the secondary side outlet of the flue gas condensing heat exchanger is connected with the water inlet of the gas stove.

[0032] The household integrated coupled heat exchange system further comprises:

[0033] The commutation port is arranged on the box body and corresponds to the fan of the heat pump.

[0034] The flue gas outlet is arranged on the box body and communicates with the flue gas outlet of the gas stove; and the flue gas outlet and the commutation port are arranged on the same side of the box body.

[0035] The household integrated coupled heat exchange system, wherein the heat exchanger is a double-pipe heat exchanger.

[0036] Beneficial effects: In the present application, the gas stove and the heat pump are coupled through the heat exchanger, the high-temperature refrigerant flowing out of the heat pump can exchange heat with the water in the secondary side of the heat exchanger, so that the water is preheated before entering the gas stove; when the gas stove heats the water, the basic temperature of the water is raised, thereby recycling the heat generated by the heat pump while improving the working efficiency of the gas stove and reducing the energy consumption of the gas stove.

[0037] At the same time, when the heat pump is in the cooling mode, the heat of the indoor or equipment side is transferred to the condenser side, at this time, the condenser needs to discharge the heat to the ambient air through the fan, and the power of the fan is large; by arranging the heat exchanger, part of the heat of the condenser side can be transferred to the water, which partially replaces the air cooling process, so that the rotation speed or running time of the fan is reduced, thereby reducing the power consumption of the fan of the heat pump.

[0038] And the box is used for containing the heat pump, gas stove, heat exchanger, and the pipeline and circuit connected with each other, so that from the appearance, the household type integrated coupled heat exchange system becomes an integrated coupled structure, the integrated design makes the installation and maintenance more convenient, reduces the workload of on-site assembly, does not need to be handled in multiple points, the service cost is lower, and the user experience is better; compared with the left-right parallel type or split type layout, the vertical superposition structure of the gas stove and the heat pump in the box can more fully utilize the vertical space, at the same time, the pipeline arrangement is more compact, can effectively release the horizontal area, is convenient for the overall layout optimization of the household type machine room or equipment room, so that the structure is especially suitable for small household or space limited scene, improves the installation flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is the first view of the household type integrated coupled heat exchange system described in the present application;

[0040] Figure 2 is the second view of the household type integrated coupled heat exchange system described in the present application;

[0041] Figure 3 is a partial internal structure schematic view of the household type integrated coupled heat exchange system described in the present application;

[0042] Figure 4 is an assembly structure schematic view of the electric control, the air duct, the cooling fin and the exhaust fan described in the present application;

[0043] Figure 5 is a schematic view of the connection relationship of each component of the household type integrated coupled heat exchange system described in the present application;

[0044] Figure 6 is a functional principle block diagram of the household type integrated coupled heat exchange system described in the present application. DETAILED DESCRIPTION

[0045] Those skilled in the art can understand that, unless specifically stated, the singular forms "a", "an" and "the" used herein also include the plural forms. It should be further understood that the phrase "comprising" used in the specification of the present application means that the features, integers, steps, operations, elements and / or components exist, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there can be intermediate elements. In addition, "connected" or "coupled" used herein can include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any single unit and all combinations of the associated listed items.

[0046] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that the terms, such as those defined in a general dictionary, should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless specifically so defined herein.

[0047] The present application provides a household integrated coupled heat exchange system, as shown in Figure 1 , Figure 2 and Figure 5 , the household integrated coupled heat exchange system comprises a box body 1, a heat pump 2, a gas stove 3 and a heat exchanger 4; the box body 1 is provided with a first chamber 5 and a second chamber 6 separated along the vertical direction; the first chamber 5 is located below the second chamber 6; the heat pump 2 is at least partially arranged in the first chamber 5; the gas stove 3 is arranged in the second chamber 6; the water outlet 32 of the gas stove 3 is connected with a user end; the heat exchanger 4 is arranged in the box body 1; the primary side of the heat exchanger 4 is connected with the heat pump 2 and forms a refrigerant circulation loop; the secondary side outlet of the heat exchanger 4 is connected with the water inlet 31 of the gas stove 3, and the secondary side inlet of the heat exchanger 4 is connected with an external water source.

[0048] Specifically, the box body 1 is used to accommodate the heat pump 2, the gas stove 3, the heat exchanger 4, and the pipelines and lines connected with each other, so that the household integrated coupled heat exchange system becomes an integrated coupled structure from the appearance, the integrated design makes the installation and maintenance more convenient, reduces the workload of on-site assembly, does not need to be handled in multiple points, the service cost is lower, the user experience is better; and the space utilization can be greatly optimized, the installation complexity is reduced, and the system energy efficiency and intelligent control level are improved.

[0049] The box body 1 is divided into two chambers, which are the first chamber 5 and the second chamber 6; wherein the first chamber 5 and the second chamber 6 are arranged along the vertical direction, and the first chamber 5 is located below the second chamber 6; the heat pump 2 is at least partially located in the first chamber 5, and the gas stove 3 is located in the second chamber 6. Since the gas stove 3 combustion will produce flue gas, and the flue gas needs to be discharged to the outside of the box body 1, therefore, in the present application, the gas stove 3 is placed in the second chamber 6, so that the gas stove 3 is located above the heat pump 2, which is more conducive to the smoothness of the gas stove 3 exhaust; and since the gas stove 3 generates high temperature when in use, therefore, the gas stove 3 is placed above the heat pump 2, which is conducive to the natural rising of heat, and does not bake the condenser 204 or the evaporator 203 of the heat pump 2, avoiding the adverse effects on the efficiency of the heat pump 2.

[0050] A partition plate 8 is further arranged in the cabinet 1, the first chamber 5 and the second chamber 6 are separated by the partition plate 8, the gas stove 3 is arranged on the partition plate 8, and the heat pump 2 is located below the partition plate 8. Compared with the side-by-side or split layout, the vertical stacking structure of the gas stove 3 and the heat pump 2 in the cabinet 1 can more fully utilize the vertical space, and at the same time, the pipeline arrangement is more compact, which can effectively release the horizontal area, facilitate the overall layout optimization of the household type machine room or equipment room, and make the structure particularly suitable for small household or space limited scenes, and improve the installation flexibility.

[0051] The gas stove 3 and the heat pump 2 are coupled through the heat exchanger 4, so that the low-temperature water flowing back to the gas stove 3 can preheat the refrigerant in the refrigerant circulation loop; in the refrigerant circulation loop, the high-temperature refrigerant flowing out of the heat pump 2 can heat the water in the secondary side of the heat exchanger 4, so that the water is preheated before entering the gas stove 3, and then the water is heated by the gas stove 3, so that the basic temperature of the water is increased, thereby recycling the heat generated by the heat pump 2 while improving the working efficiency of the gas stove 3 and reducing the energy consumption of the gas stove 3.

[0052] As shown in FIG. 1, Figure 5 ( Figure 5 The heat pump 2 includes a compressor 201, a four-way valve 202, an evaporator 203 and a condenser 204; the compressor 201, the four-way valve 202, the evaporator 203 and the condenser 204 are connected in sequence and form a refrigerant circulation loop; the primary side of the heat exchanger 4 is connected with the compressor 201 and the four-way valve 202 respectively to access the refrigerant circulation loop. The four valves of the four-way valve 202 are respectively communicated with the backflow port of the compressor 201, the primary side outlet of the heat exchanger 4, the evaporator 203 and the condenser 204, and are used for adjusting the flow direction of the refrigerant in the refrigerant circulation loop. The high-temperature refrigerant flowing out of the compressor 201 can be heat-exchanged with the water flow path of the secondary side of the heat exchanger 4 in the heat exchanger 4, so as to be pre-cooled, then flow into the condenser 204, and then circulate in the heat pump 2; under the conduction of the four-way valve 202, the refrigerant flows into the compressor 201 after sequentially passing through the condenser 204 and the evaporator 203, and then the heat pump 2 is used for refrigeration. Conversely, when the refrigerant flows out of the compressor 201, first passes through the evaporator 203, then passes through the condenser 20432, and finally flows back to the compressor 201, then the heat pump 2 is used for heating. The evaporator 203 and the fan 200 of the heat pump 2 are both located in the first chamber 5.

[0053] In the present application, when the heat pump 2 is in a refrigeration mode, the heat of the indoor or equipment side will be transferred to the condenser 204 side, at this time the condenser 204 needs to discharge heat to the ambient air through the fan 200, resulting in a large power of the fan 200; and by setting the heat exchanger 4, part of the heat on the condenser 204 side can be transferred to the water, partially replacing the air cooling process, so the fan 200 speed or running time is reduced, thereby reducing the power consumption of the fan 200 of the heat pump 2.

[0054] As shown in Figure 5 The household integrated coupled heat exchange system further comprises a three-way valve 9, which is arranged in the box 1; the inlet 91 of the three-way valve 9 is connected with an external water source, the first outlet 92 of the three-way valve 9 is connected with the primary side inlet of the heat exchanger 4, and the second outlet 93 of the three-way valve 9 is connected with the water inlet 31 of the gas stove 3.

[0055] Specifically, the secondary side outlet of the heat exchanger 4 is in communication with the water inlet 31 of the gas stove 3; the three-way valve 9 is used to control the on-off between the external water source and the secondary side inlet of the heat exchanger 4, and the on-off between the external water source and the water inlet 31 of the gas stove 3; when the inlet 91 of the three-way valve 9 is in communication with the first outlet 92 of the three-way valve 9, the external water source is in communication with the water inlet 31 of the gas stove 3 through the secondary side of the heat exchanger 4, so that the tap water can be preheated by the heat exchange with the refrigerant circulating loop before entering the gas stove 3; when the inlet 91 of the three-way valve 9 is in communication with the second outlet 93 of the three-way valve 9, the communication line between the external water source and the secondary side of the heat exchanger 4 is cut off, and the external water source is directly in communication with the water inlet 31 of the gas stove 3, so that the tap water can directly enter the gas stove 3 without passing through the heat exchanger 4 and being preheated by the refrigerant circulating loop.

[0056] Therefore, when the water entering the gas stove 3 does not need to be heated by the heat exchanger 4, the three-way valve 9 can be adjusted to cut off the communication between the inlet 91 of the three-way valve 9 and the first outlet 92 of the three-way valve 9, and to communicate the inlet 91 of the three-way valve 9 with the second outlet 93 of the three-way valve 9. When the water temperature entering the gas stove 3 is too low and needs to be preheated, the three-way valve 9 can be adjusted to communicate the inlet 91 of the three-way valve 9 with the first outlet 92 of the three-way valve 9, and to cut off the communication between the inlet 91 of the three-way valve 9 and the second outlet 93 of the three-way valve 9.

[0057] The heat pump 2 is also connected with a user end, thereby supplying hot water to the user end. Specifically, the water outlet 32 of the gas furnace 3 is connected with the user end and is used for supplying domestic hot water. The outlet of the gas furnace 3 can also be externally connected with a water storage tank, thereby storing the domestic hot water supplied by the gas furnace 3. The user end connected with the heat pump 2 is applied to floor heating or fan-coil; the primary side of the condenser 204 is connected into a refrigerant circulation loop, the secondary side inlet of the condenser 204 is connected with a floor heating return water pipe, and the secondary side outlet of the condenser 204 is connected with a floor heating water supply pipe; when the heat pump 2 is in a heating mode, the secondary side of the condenser 204 can be used for supplying hot water to the floor heating; when the heat pump 2 is in a cooling mode, the secondary side of the condenser 204 can be applied to a fan-coil.

[0058] In an embodiment of the present application, a water pump 10 (as shown in Figure 3 、 Figure 4 and Figure 5 ) is further arranged between the three-way valve 9 and the external water source. The water pump 10 is arranged at an upstream position of the three-way valve 9 and at a downstream position of the external water source along the water flow direction.

[0059] Specifically, the heat exchange performance of the heat exchanger 4 depends on the flow state of the external water source. If the water flow is insufficient, the heat exchange effect will be significantly reduced. Through the driving of the water pump 10, the stability of the water supply flow rate of the external water source can be maintained, thereby ensuring efficient heat transfer to the water system. In addition, when the inlet 91 of the three-way valve 9 is in communication with the first outlet 92 of the three-way valve 9, the water pump 10 can also increase the water flow rate inside the heat exchanger 4, enhance the turbulent effect, avoid uneven heat exchange caused by local low-speed flow, and thereby improve the overall heat exchange efficiency.

[0060] At the same time, the water pump 10 can also effectively eliminate the gas that may accumulate in the water supply flow path from the external water source to the gas furnace 3, avoid the problem of water flow interruption caused by air resistance, and ensure the stable circulation operation of the heat exchanger 4 and the entire system.

[0061] As shown in Figure 5 , the household integrated coupled heat exchange system further comprises a water inlet pipeline 11; the outlet of the water inlet pipeline 11 is connected with the inlet 91 of the three-way valve 9, and the inlet 400 of the water inlet pipeline 11 is connected with the external water source; as shown in Figure 3 , the inlet 400 of the water inlet pipeline 11 is lower than the water inlet 31 of the heat exchanger 4, the water inlet 31 of the gas furnace 3, and the water outlet 32 of the gas furnace 3.

[0062] Specifically, among the inlet 400 of the water inlet pipeline 11, the heat exchanger 4, the water inlet 31 of the gas stove 3 and the water outlet 32 of the gas stove 3, the inlet 400 of the water inlet pipeline 11 is at the lowest position, so that the external cold water enters the system from bottom to top, the bubbles are easily discharged upward with the water flow, and the entire heat exchanger 4 and the gas stove 3 pipeline is more easily realized natural exhaust. In the present application, the inlet 400 of the water inlet pipeline 11 is designed at the low position, and when draining water, the user / maintenance personnel do not need to disassemble the machine, do not need to specially open the exhaust port in the stove, and can quickly drain water outside the equipment under the action of natural gravity. The water can be smoothly drained.

[0063] The household integrated coupled heat exchange system further comprises a water outlet pipeline 12 (as shown in Figure 5 and a third chamber 7 (as shown in Figure 1 and Figure 2 ); the inlet of the water outlet pipeline 12 is connected with the water outlet 32 of the gas stove 3, and the outlet 300 of the water outlet pipeline 12 is connected with the user end; the third chamber 7 is arranged on the same side of the first chamber 5 and the second chamber 6 along the horizontal direction; the heat exchanger 4 is located in the third chamber 7; the outlet 300 of the water outlet pipeline 12 and the inlet 400 of the water inlet pipeline 11 are both arranged on the side wall of the third chamber 7.

[0064] Specifically, the water outlet pipeline 12 is used to be connected with the water outlet 32 of the gas stove 3, so as to provide domestic hot water for the user. The box body 1 is divided into three chambers: the first chamber 5, the second chamber 6 and the third chamber 7; wherein the second chamber 6 and the first chamber 5 are distributed above and below, and are both located on one side of the third chamber 7 in the horizontal direction; the height of the third chamber 7 is the sum of the heights of the first chamber 5 and the second chamber 6.

[0065] The outlet 300 of the water outlet pipeline 12 and the inlet 400 of the water inlet pipeline 11 both correspond to the third chamber 7, so that the water pipeline arrangement is concentrated, the pipeline layout is clear, the cross-chamber pipeline and the wall opening are reduced, the structure is more compact, and the whole machine occupies less space. The temperature in the combustion area of the gas stove 3 is high, and the water pipeline area is concentrated in the third chamber 7, which can effectively isolate the cold and hot areas, improve the heat management performance of the system, and reduce the influence of the high temperature area on other functional modules. Moreover, the water inlet and outlet pipelines 12 are arranged in the third chamber 7, so that the pipelines are concentrated during construction, and the maintenance convenience is improved.

[0066] Meanwhile, the compressor 201 and the heat exchanger 4 in the application are arranged in the third chamber 7, so that the heat exchanger 4 is separated from the gas stove 3 and the evaporator 203, which can avoid high-temperature radiation generated when the gas stove 3 is burning, so as to avoid material aging and sealing aging of the heat exchanger 4 and affect the service life; and can also avoid damp condensation due to the condensate water generated by the evaporator 203 when the heat pump 2 is working. The heat exchanger 4 is separated from the gas stove 3 and the heat pump 2 and arranged in the third chamber 7, so that the heat insulation design is better and the temperature control environment is more reasonable. The compressor 201 in the heat pump 2 is a vibration source, so the compressor is arranged at the bottom of the third chamber 7, which reduces the gravity center and makes the vibration absorption effect of the box body 1 better.

[0067] In an embodiment of the application, the water pump 10 is located in the third chamber 7 and close to the heat exchanger 4, which can avoid large pressure drop caused by long-distance pipe running in the middle, ensure the flow rate and turbulent state of the heat exchanger 4, and greatly improve the heat exchange efficiency; and the water pump 10 is installed close to the heat exchanger 4, so that the pressure before and after the water pump 10 is stable and the pipeline loss is smaller, thereby reducing vibration and noise.

[0068] As shown in Figure 3 , Figure 4 and Figure 6 , the household integrated coupled heat exchange system further comprises an electric control device 13, which is arranged in the third chamber 7 and electrically connected with the heat pump 2 and the gas stove 3.

[0069] Specifically, the electric control device 13 is electrically connected with the heat pump 2, the gas stove 3, the water pump 10 and the three-way valve 9; the heat pump 2 and the gas stove 3 communicate with each other through one electric control device 13, which can efficiently and cooperatively judge and switch the working conditions, avoid communication delay or interference between double electric control devices 13, and realize rapid response and high reliability.

[0070] The electric control device 13 is located in the third chamber 7 and close to the top of the box body 1, which can effectively avoid the influence of high temperature in the second chamber 6 or humid environment in the first chamber 5 on the electric control device 13, and ensure long-term stable operation of the electric control device. Meanwhile, since the third chamber 7 is also arranged with various pipelines such as the water inlet pipeline 11 and the water supply pipeline, although the third chamber 7 is relatively dry as a whole, there is still a risk of trace water vapor or water leakage; therefore, the electric control device 13 is arranged at the top of the internal space of the third chamber 7 and close to the top of the box body 1, so as to avoid water vapor accumulation in the electric control device 13, thereby prolonging the service life of the electric control device 13.

[0071] The top position is beneficial to heat dissipation of the electric control device 13, conducive to natural rising of hot air, and more conducive to local convection heat exchange, so as to reduce the risk of local heat accumulation and prolong the service life of the device.

[0072] As shown in Figure 4As shown, the household integrated coupled heat exchange system further comprises an air duct 14 and an exhaust fan 15; the air duct 14 is arranged in the box body 1, and the exhaust fan 15 is arranged in the air duct 14; the first air port is arranged on the side wall of the third chamber 7 close to the second chamber 6, and the first air port is in communication with the air duct 14; the second air port 16 is arranged on the outer wall of the second chamber 6, and the second air port 16 is in communication with the air duct 14.

[0073] Specifically, the first air port is arranged not only in the third chamber 7 and in communication with the air duct 14, but also corresponds to the position of the electric control device 13; the air duct 14 communicates the first air port with the second air port 16, and the exhaust fan 15 is arranged in the air duct 14; then under the power drainage of the exhaust fan 15, the hot air generated by the operation of the electric control device 13 in the third chamber 7 can be discharged from the second air port 16 to the box body 1, so as to achieve the heat dissipation and cooling effect of the electric control device 13.

[0074] As shown, Figure 2 The outer wall of the second chamber 6 is provided with an air inlet grille 17 for the gas stove 3, and the outer wall of the third chamber 7 corresponding to the electric control device 13 is provided with an air inlet hole, and the air inlet hole is located on the side of the third chamber 7 away from the second chamber 6. It should be noted that the second air port 16 is arranged on the outer wall of the second chamber 6, rather than the outer wall of the third chamber 7; the reason is that for the electric control device 13, the air inlet hole and the first air port are respectively located on the opposite sides of the electric control device 13, so that the air flow can enter the third chamber 7 from one side of the electric control device 13 and be discharged from the other side of the electric control device 13; under the power action of the exhaust fan 15, the air flows between the air inlet hole, the first air port, the air duct 14 and the second air port 16, passes through the space where the electric control device 13 is located, which is more conducive to the heat dissipation of the electric control device 13.

[0075] It should be noted that the exhaust fan 15 in the present application is not the combustion fan of the gas stove 3, but an independent fan specially arranged for cooling the electric control device 13.

[0076] The household integrated coupled heat exchange system further comprises a heat sink 18, which is arranged in the air duct 14 and upstream of the exhaust fan 15 along the air flow direction.

[0077] Specifically, the heat sink 18 is installed in the air duct 14, and under the air flow action of the exhaust fan 15, the air accumulated around the electric control device 13 will first pass through the heat sink 18 and then be discharged from the second air port 16; the exhaust fan 15 is downstream of the heat sink 18, the air flow passing through the heat sink 18 is the original air flow without disturbance, and the temperature difference is large, which is conducive to heat exchange and improves the heat dissipation capacity. At the same time, the heat sink 18 is placed upstream of the exhaust fan 15, which can absorb heat, and the temperature of the air discharged by the subsequent exhaust fan 15 is lower, avoiding the circulation and heat accumulation of hot air in the cavity, which affects other electronic components.

[0078] The residential integrated coupled heat exchange system also includes a flue gas condensing heat exchanger 19, which is installed inside the housing 1. The primary side inlet of the flue gas condensing heat exchanger 19 is connected to the exhaust port 21 of the gas furnace 3, and the secondary side inlet of the flue gas condensing heat exchanger 19 is connected to the second outlet 93 of the three-way valve 9 and the secondary side outlet of the heat exchanger 4, respectively. The secondary side outlet of the flue gas condensing heat exchanger 19 is connected to the water inlet 31 of the gas furnace 3.

[0079] Specifically, the primary side of the flue gas condensing heat exchanger 19 is connected to the exhaust passage of the gas furnace 3, and the secondary side of the flue gas condensing heat exchanger 19 is connected to the water supply path of the external water source to the gas furnace 3. This allows the flue gas discharged from the gas furnace 3 to first pass through the primary side of the flue gas condensing heat exchanger 19 before being discharged outside the housing 1. The water supplied by the external water source first enters the flue gas condensing heat exchanger 19 before entering the gas furnace 3, and after exchanging heat with the flue gas discharged from the gas furnace 3, it flows back into the gas furnace 3.

[0080] The gas furnace 3 produces high-temperature flue gas during combustion, which would waste a significant amount of heat energy if discharged directly. By installing a flue gas condenser heat exchanger 19 at the flue gas outlet of the gas furnace 3, the heat from the flue gas can be used to preheat the water entering the gas furnace 3, thereby recovering some heat energy. Since the water is preheated by the flue gas condenser heat exchanger 19, its temperature is higher than that of water flowing directly from an external source to the gas furnace 3. Therefore, the heating time and gas consumption required by the gas furnace 3 are reduced, thereby improving thermal efficiency and saving gas. After the flue gas condenser heat exchanger 19 recovers the heat from the flue gas, the emission temperature of the flue gas is significantly reduced. This not only reduces energy waste but also reduces thermal pollution emitted into the atmosphere, meeting the requirements of energy conservation and environmental protection.

[0081] The residential integrated coupled heat exchange system also includes an exchange port 20 and a flue gas outlet 21; the exchange port 20 is located on the housing 1 and corresponds to the fan 200 of the heat pump 2; the flue gas outlet 21 is located on the housing 1 and is connected to the flue gas outlet of the gas furnace 3; the flue gas outlet 21 and the exchange port 20 are arranged on the same side of the housing 1 and are both located on the side of the housing 1 away from the air inlet grille 17.

[0082] Specifically, the exchange port 20 corresponds to the fan 200 (evaporator 203 side fan) of the heat pump 2. The fan 200 drives external air to flow through the fins of the evaporator 203 and discharges the heat-exchanged air outside the housing 1 through the exchange port 20. The exhaust port 21 is connected to the primary side outlet of the flue gas condensing heat exchanger 19 and is used to discharge the flue gas generated by the combustion of the gas furnace 3 outside the housing 1. In this application, the exchange port 20 and the exhaust port 21 are arranged on the same side of the housing 1, and a reasonable spacing is designed between the exchange port 20 and the exhaust port 21 to form an orderly exhaust zone. This avoids the backflow of flue gas caused by the different sides affecting the heat exchange effect of the evaporator 203, reduces the risk of flue gas backflow, and thus improves the overall energy efficiency.

[0083] In an embodiment of the present application, the heat exchanger 4 is a double-pipe heat exchanger. The double-pipe heat exchanger has an inner and outer double-pipe structure and is coaxially arranged. The double-pipe heat exchanger has a short length and a small volume, and is particularly suitable for a limited space scene of the gas stove 3 and the heat pump 2 all-in-one machine. Compared with a plate heat exchanger and a shell-and-tube heat exchanger, the double-pipe heat exchanger occupies less space in the box 1 and is more likely to achieve overall compactness and miniaturization. In addition, by using the double-pipe heat exchanger, the temperature stability of hot water flow can be maintained. Even if the temperature difference between the two fluids is large, the double-pipe heat exchanger can control the flow rate of the fluid through its structure to ensure stable temperature output.

[0084] In summary, the present application provides a household all-in-one coupled heat exchange system, which comprises a box; a first chamber and a second chamber separated in the vertical direction are arranged in the box; the first chamber is located below the second chamber; a heat pump is arranged in the first chamber; a gas stove is arranged in the second chamber; the water outlet of the gas stove is connected with a user end; a heat exchanger is arranged in the box; the primary side of the heat exchanger is connected with the heat pump and forms a refrigerant circulation loop; the secondary side outlet of the heat exchanger is connected with the water inlet of the gas stove, and the secondary side inlet of the heat exchanger is connected with an external water source.

[0085] In the present application, the gas stove and the heat pump are coupled through the heat exchanger, so that the low-temperature water flowing back to the gas stove preheats the refrigerant in the refrigerant circulation loop; in the refrigerant circulation loop, the high-temperature refrigerant flowing out of the heat pump can heat the water in the secondary side of the heat exchanger, so that the water is preheated before entering the gas stove; when the gas stove heats the water, the basic temperature of the water is raised, thereby recycling the heat generated by the heat pump while improving the working efficiency of the gas stove and reducing the energy consumption of the gas stove. At the same time, when the heat pump is in the cooling mode, the heat of the indoor or equipment side will be transferred to the condenser side, at this time the condenser needs to discharge heat to the ambient air through the fan, and the fan power is large; by setting the heat exchanger, part of the heat of the condenser side can be transferred to the water, partially replacing the air cooling process, so the fan speed or running time is reduced, thereby reducing the fan power consumption of the heat pump. And the box body is used to accommodate the heat pump, the gas stove, the heat exchanger, and the pipelines and lines connected between them, so that from the appearance, the household type integrated coupled heat exchange system becomes an integrated coupled structure, the integrated design makes the installation and maintenance more convenient, reduces the workload of on-site assembly, and does not need to be handled in multiple points, so the service cost is lower and the user experience is better; compared with the left-right parallel or split type layout, the vertical stacking structure of the gas stove and the heat pump in the box body can make full use of the vertical space, at the same time make the pipeline arrangement more compact, can effectively release the horizontal area, facilitate the overall layout optimization of the household type machine room or equipment room, so that the structure is especially suitable for small household or space limited scenes, improves the installation flexibility.

[0086] It should be understood that the application of the present application is not limited to the above examples, and those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims attached to the present application.

Claims

1. A domestic type integrated coupled heat exchange system, characterized in that, It includes: The enclosure contains a first chamber and a second chamber, which are vertically separated; the first chamber is located below the second chamber. A heat pump, at least partially disposed within the first chamber; A gas-fired boiler is installed in the second chamber; the water outlet of the gas-fired boiler is connected to the user end. A heat exchanger is installed inside the housing; the primary side of the heat exchanger is connected to the heat pump, forming a refrigerant circulation loop; the secondary side outlet of the heat exchanger is connected to the water inlet of the gas furnace, and the secondary side inlet of the heat exchanger is connected to an external water source.

2. The integrated coupled heat exchange system of claim 1, wherein It also includes: A three-way valve is installed inside the housing; the inlet of the three-way valve is connected to an external water source, the first outlet of the three-way valve is connected to the primary inlet of the heat exchanger, and the second outlet of the three-way valve is connected to the water inlet of the gas furnace.

3. The residential integrated coupled heat exchange system according to claim 2, characterized in that, It also includes: Water inlet pipe; the outlet of the water inlet pipe is connected to the inlet of the three-way valve, and the inlet of the water inlet pipe is connected to an external water source; The inlet of the water inlet pipe is lower than the water inlet of the heat exchanger, the water outlet of the gas furnace, and the water outlet of the gas furnace.

4. The residential integrated coupled heat exchange system according to claim 3, characterized in that, It also includes: Water outlet pipe; the inlet of the water outlet pipe is connected to the water outlet of the gas furnace, and the outlet of the water outlet pipe is connected to the user end; The third chamber is arranged horizontally on the same side of the first and second chambers; the heat exchanger is located in the third chamber; the outlet of the water outlet pipe and the inlet of the water inlet pipe are both located on the side wall of the third chamber.

5. The residential integrated coupled heat exchange system according to claim 4, characterized in that, It also includes: An electronic controller is located in the third chamber and is electrically connected to the heat pump and the gas furnace, respectively.

6. The residential integrated coupled heat exchange system according to claim 5, characterized in that, It also includes: The air duct is installed inside the box. An exhaust fan is installed inside the air duct; A first air vent is provided on the side wall of the third chamber near the second chamber, and the first air vent is connected to the air duct; a second air vent is provided on the outer wall of the second chamber, and the second air vent is connected to the air duct.

7. The residential integrated coupled heat exchange system according to claim 6, characterized in that, It also includes: Heat sinks are disposed within the air duct and arranged upstream of the exhaust fan along the airflow direction.

8. The residential integrated coupled heat exchange system according to claim 2, characterized in that, It also includes: A flue gas condensing heat exchanger is installed inside the housing; the primary inlet of the flue gas condensing heat exchanger is connected to the exhaust port of the gas furnace, the secondary inlet of the flue gas condensing heat exchanger is connected to the second outlet of the three-way valve and the secondary outlet of the heat exchanger respectively; the secondary outlet of the flue gas condensing heat exchanger is connected to the water inlet of the gas furnace.

9. The residential integrated coupled heat exchange system according to claim 1, characterized in that, It also includes: An exchange port is located on the housing and corresponds to the fan of the heat pump; A flue gas outlet is provided on the housing and is connected to the flue gas outlet of the gas furnace; the flue gas outlet and the converter are arranged on the same side of the housing.

10. The residential integrated coupled heat exchange system according to claim 1, characterized in that, The heat exchanger is a shell-and-tube heat exchanger.

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