Composite system

Abstract

The utility model discloses a compound system, which relates to the technical field of electric appliances and is characterized in that a first heat exchange module in a refrigerant circulation loop of heat pump equipment is in heat exchange connection with a first water storage device; the water outlet pipeline, the water inlet pipeline, a water inlet of the gas equipment, a water outlet of the gas equipment, a water outlet of the first water storage device and a water inlet of the first water storage device are all connected with the flow direction adjusting assembly. The flow direction adjusting assembly comprises a first operation state, a second operation state and a third operation state. In the first operation state, water in the water inlet pipeline flows through the gas equipment independently and then flows into the water outlet pipeline. In the second operation state, water in the water inlet pipeline sequentially flows through the first water storage device and the gas equipment and then flows into the water outlet pipeline; and in the third operation state, water in the water inlet pipeline independently flows through the first water storage device and then flows into the water outlet pipeline. The technical scheme provided by the utility model aims to meet diversified water use requirements and simultaneously consider energy-saving and environment-friendly effects.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, and in particular to a composite system. Background Technology

[0002] Currently, users typically install one of the following types of water heaters at home: electric water heaters, air source heat pump water heaters, or gas water heaters, to meet their water needs. However, in real-world applications, user needs are varied, and any of these water heaters, when used alone, presents a challenge in balancing water demand with energy efficiency and environmental friendliness. Utility Model Content

[0003] The main purpose of this invention is to provide a composite system that aims to meet diverse water demand while also achieving energy-saving and environmental protection effects.

[0004] To achieve the above objectives, this utility model proposes a composite system, which includes a heat pump device, a gas device, an inlet water pipe, an outlet water pipe, and a flow direction adjustment component.

[0005] The heat pump equipment includes a refrigerant circulation loop and a first water storage device. The refrigerant circulation loop includes a compressor and a first heat exchange module. The first heat exchange module is connected to the first water storage device for heat exchange.

[0006] The water outlet pipe, the water inlet pipe, the water inlet of the gas equipment, the water outlet of the gas equipment, the water outlet of the first water storage device, and the water inlet of the first water storage device are all connected to the flow direction adjustment component.

[0007] The flow direction adjustment component includes a first operating state, a second operating state, and a third operating state:

[0008] The first operating state is set such that the water flowing out of the inlet pipe does not flow through the first water storage device and flows through the gas equipment before flowing into the outlet pipe;

[0009] The second operating state is set so that the water flowing out of the inlet pipe flows sequentially through the first water storage device and the gas equipment before flowing into the outlet pipe;

[0010] The third operating state is set so that the water flowing out of the inlet pipe does not flow through the gas equipment but flows through the first water storage device before flowing into the outlet pipe.

[0011] In one embodiment, the flow direction adjustment component includes:

[0012] The first control valve is connected to both the water inlet pipe and the water inlet of the gas equipment.

[0013] The second control valve is connected to the outlet of the first water storage device and the first pipeline between the first control valve and the inlet of the gas equipment.

[0014] The third control valve, the second pipeline between the second control valve and the outlet of the first water storage device, and the third pipeline between the outlet pipeline and the outlet of the gas equipment are all connected to the third control valve.

[0015] In one embodiment, the composite system further includes a flue gas duct that is connected to the flue gas outlet of the gas equipment and is heat-exchange connected to the water inlet duct.

[0016] In one embodiment, the composite system further includes a fourth pipeline, one end of which is connected to the inlet pipeline, and the other end of which is connected to the outlet pipeline via a mixing valve.

[0017] In one embodiment, the refrigerant circulation loop further includes a first throttling device and a second heat exchange module, wherein the first heat exchange module, the first throttling device, and the second heat exchange module are connected in sequence, and both the first heat exchange module and the second heat exchange module are connected to the compressor;

[0018] The heat pump equipment further includes a first refrigerant branch, a second water storage device, and a first refrigerant switching component. The first refrigerant branch includes a third heat exchange module and a second throttling device connected in series. The third heat exchange module is heat exchanged with the second water storage device. The first throttling device, the second throttling device, and the first end of the second heat exchange module are all connected to the first refrigerant switching component. The second end of the second heat exchange module is connected to the third heat exchange module.

[0019] The operating states of the first refrigerant switching component include a first state and a second state. In the first state, the first throttling device is connected to the second heat exchange module, and in the second state, the first throttling device is connected to the second throttling device.

[0020] In one embodiment, the first refrigerant switching component is a first three-way valve, and the first end of the first throttling device, the second throttling device, and the second heat exchange module are respectively connected to different valve ports of the first three-way valve.

[0021] In one embodiment, the refrigerant circulation loop further includes a reversing assembly, and the compressor's exhaust port, the compressor's return port, the first heat exchange module, and the second end of the second heat exchange module are connected through the reversing assembly;

[0022] The heat pump device further includes a second refrigerant switching component, and the reversing component, the second end of the second heat exchange module, and the third heat exchange module are connected through the second refrigerant switching component;

[0023] The second refrigerant switching component is configured to switch between a third state and a fourth state. In the third state, the reversing component is connected to the second heat exchange module, and in the fourth state, the reversing component is connected to the third heat exchange module.

[0024] In one embodiment, the second refrigerant switching component includes a second three-way valve, and the reversing component, the second end of the second heat exchange module, and the third heat exchange module are respectively connected to different valve ports of the second three-way valve.

[0025] In one embodiment, the operating state of the first refrigerant switching component further includes a fifth state, in which the second heat exchange module is connected to the second throttling device;

[0026] The heat pump equipment also includes a second refrigerant branch, a fifth pipeline between the second refrigerant switching component and the third heat exchange module is connected to one end of the second refrigerant branch, a sixth pipeline between the return port and the reversing component is connected to the other end of the second refrigerant branch, and a fourth control valve is provided in the second refrigerant branch.

[0027] In one embodiment, the heat pump device further includes a water circulation loop, the water circulation loop including an indoor terminal device, the water circulation loop further including a first heat exchanger and / or a second heat exchanger, the first heat exchanger being heat-exchange connected to the first water storage device, and the second heat exchanger being heat-exchange connected to the second water storage device.

[0028] In one embodiment, the water circulation loop includes a first heat exchanger, a second heat exchanger, and a flow direction switching component, wherein the indoor terminal device, the first heat exchanger, and the second heat exchanger are all connected to the flow direction switching component;

[0029] The flow direction switching component is configured to switch the water flow direction in the water circulation loop between a first flow direction and a second flow direction. The first flow direction is for water to circulate between the first heat exchanger and the indoor terminal device, and the second flow direction is for water to circulate between the second heat exchanger and the indoor terminal device.

[0030] In one embodiment, the flow direction switching component includes a third three-way valve and a fourth three-way valve. The first end of the first branch, the first end of the second branch, and the first end of the indoor terminal device are respectively connected to different valve ports of the third three-way valve, and the second end of the first branch, the second end of the second branch, and the second end of the indoor terminal device are respectively connected to different valve ports of the fourth three-way valve.

[0031] In one embodiment, the indoor terminal device includes an indoor heat exchanger and an indoor fan corresponding to the indoor heat exchanger.

[0032] In one embodiment, the water inlet pipe is connected to the water inlet of the second water storage device.

[0033] In one embodiment, the composite system further includes a one-way valve disposed between the water inlet pipe and the second water storage device, the one-way valve being configured to allow one-way flow from the water inlet pipe to the water inlet of the second water storage device.

[0034] This utility model's technical solution uses a combination of heat pump equipment and gas equipment as a heat source for hot water treatment. By switching the operating state of the flow direction adjustment component, it can adapt to different water demand by selecting the lowest possible energy consumption method for heating, such as using the heat pump equipment alone as a heat source, using both the gas equipment and the heat pump equipment as heat sources, or using the gas equipment alone as a heat source. Compared to a water heater system using a single energy source, the heat supply and energy consumption are no longer fixed, thus meeting diverse water demand while also taking into account energy conservation and environmental protection effects. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the system structure of one embodiment of the composite system of this utility model.

[0037] Explanation of icon numbers:

[0038]

[0039]

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0042] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0043] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0044] This utility model proposes a composite system.

[0045] Reference Figure 1 The composite system includes a heat pump device 3, a gas device 4, a water inlet pipe 1, a water outlet pipe 2, and a flow direction adjustment component 5;

[0046] The heat pump device 3 includes a refrigerant circulation loop and a first water storage device 33. The refrigerant circulation loop includes a compressor 31 and a first heat exchange module 32. The first heat exchange module 32 is connected to the first water storage device 33 for heat exchange.

[0047] The water outlet pipe 2, the water inlet pipe 1, the water inlet of the gas equipment 4, the water outlet of the gas equipment 4, the water outlet of the first water storage device 33, and the water inlet of the first water storage device 33 are all connected to the flow direction adjustment component 5.

[0048] The flow direction adjustment component 5 includes a first operating state, a second operating state, and a third operating state:

[0049] The first operating state is set such that the water flowing out of the inlet pipe 1 does not flow through the first water storage device 33 and flows through the gas equipment 4 before flowing into the outlet pipe 2;

[0050] The second operating state is set so that the water flowing out of the inlet pipe 1 flows through the first water storage device 33 and the gas equipment 4 in sequence before flowing into the outlet pipe 2;

[0051] The third operating state is set so that the water flowing out of the inlet pipe 1 does not flow through the gas equipment 4 but flows through the first water storage device 33 before flowing into the outlet pipe 2.

[0052] Regarding the heat pump device 3, the compressor 31 is configured to provide heat to the first heat exchange module 32 through refrigerant circulation, and the first heat exchange module 32 can heat the water in the first water storage device 33 by releasing heat.

[0053] In one implementation, the refrigerant circulation loop in the heat pump device 3 includes a compressor 31, a reversing assembly 36 (e.g., a four-way valve), a first heat exchange module 32, a first throttling device 34, and a second heat exchange module 35. The first heat exchange module 32, the first throttling device 34, and the second heat exchange module 35 are connected sequentially. The exhaust port of the compressor 31, the return port of the compressor 31, the first heat exchange module 32, and the second heat exchange module 35 are connected through the reversing assembly 36. The interfaces on the reversing assembly 36 that connect to the exhaust port, the return port, the first heat exchange module 32, and the second heat exchange module 35 are defined sequentially as a first interface, a second interface, a third interface, and a fourth interface. The reversing assembly 36 has a first operating state and a second operating state. When the reversing assembly 36 is in the first operating state, the first interface is connected to the third interface, and the second interface of the compressor 31 is connected to the fourth interface. When the reversing assembly 36 is in the second operating state, the first interface is connected to the fourth interface, and the second interface is connected to the third interface. In this embodiment, the second heat exchange module 35 is located in the outdoor environment. The second heat exchange module 35 can be equipped with a corresponding fan. When the fan is turned on, it can drive the ambient air to exchange heat with the second heat exchange module 35. When the commutation assembly 36 is running in the first operating state, the first heat exchange module 32 is in a condensation state and can release heat to heat the water in the first water storage device 33. When the commutation assembly 36 is running in the second operating state, the second heat exchange module 35 is in a condensation state.

[0054] In another implementation, the exhaust port of compressor 31, the first heat exchange module 32, the first throttling device 34, the second heat exchange module 35, and the return port of compressor 31 are connected in sequence. When compressor 31 is turned on and the first throttling device 34 is operating, the first heat exchange module 32 is in a condensing state and the second heat exchange module 35 is in an evaporating state.

[0055] Regarding gas equipment 4, gas equipment 4 provides heat energy for hot water by burning combustible gas.

[0056] The gas appliance 4 may include a housing, inside which a water pipe and a corresponding burner may be installed. The burner can burn gas to provide heat to heat the water flowing through the water pipe. The housing may be provided with an inlet and an outlet connected to the water pipe. Water outside the gas appliance 4 can flow into the water pipe through the inlet, absorb the heat provided by the burner, and then flow out of the gas appliance 4 through the outlet.

[0057] A flue can also be provided on the casing of the gas appliance 4, which allows the flue gas generated during the combustion process of the burner to be discharged to the outside of the gas appliance 4.

[0058] The flow direction regulating component 5 may include a combination of multiple solenoid valves or an integrated multi-way control valve or a combination of a multi-way valve and a solenoid valve, etc.

[0059] The flow direction adjustment component 5 can switch operating states to adapt to actual water demand between the first operating state, the second operating state, and the third operating state.

[0060] When the flow direction regulating component 5 operates in the first operating state, the first heat exchange module 32 stops releasing heat while the gas equipment 4 is in the heating state. When the flow direction regulating component 5 operates in the second operating state, both the first heat exchange module 32 and the gas equipment 4 are in the heating state. When the flow direction regulating component 5 operates in the third operating state, both the first heat exchange module 32 and the gas equipment 4 are in the off-heating state. Based on this, when it is necessary to heat the water flowing into the inlet pipe 1, the energy consumption and cost of the flow direction regulating component 5 operating in the second operating state are greater than those of the flow direction regulating component 5 operating in the first or third operating state. The flow direction regulating component 5 operating in the first operating state is more environmentally friendly than operating in the third operating state, and the heating efficiency of the flow direction regulating component 5 operating in the third operating state is higher than that of the flow direction regulating component 5 operating in the first operating state.

[0061] In some embodiments, the flow direction regulating component 5 can operate in a third operating state when a first condition is met. The first condition includes at least one of the following: the water temperature in the first water storage device 33 is greater than or equal to a first water temperature threshold and remains so for a first duration; the water temperature at the outlet of the outlet pipe 2 is greater than a second water temperature threshold and remains so for a second duration, etc. The flow direction regulating component 5 can stop operating in the third operating state when a second condition is met. The second condition includes at least one of the following: the heat pump device 3 malfunctions; an instruction to separately turn on the gas device 4 is received, etc.

[0062] In some embodiments, the flow direction regulating component 5 can operate in a second operating state when a third condition is met. The third condition includes at least one of the following: the water temperature in the first water storage device 33 is lower than a first water temperature threshold for a third duration; the water temperature at the outlet of the outlet pipe 2 is lower than the third water temperature threshold for a fourth duration, etc. When a fourth condition is met, the flow direction regulating component 5 can stop operating in the second operating state. The fourth condition may include: the water temperature in the first water storage device 33 is greater than or equal to the first water temperature threshold for a first duration. When the flow direction regulating component 5 operates in the second operating state, the heating power of the gas flow control unit can be determined based on the ambient temperature.

[0063] In some embodiments, the flow direction regulating component 5 can operate in a first operating state when a fifth condition is met. The fifth condition includes at least one of the following: a malfunction in the heat pump device 3; receiving an instruction to separately activate the gas device 4, etc. The flow direction regulating component 5 can stop operating in the first operating state when a sixth condition is met. The sixth condition includes at least one of the following: the malfunction in the heat pump device 3 is cleared; receiving a signal to separately activate the heat pump device 3. When the flow direction regulating component 5 operates in the first operating state, the gas device 4 can operate at maximum heating power.

[0064] The technical solution of this utility model adopts a heat pump device 3 and a gas device 4 as a composite heat source for hot water treatment. By switching the operating state of the flow direction adjustment component 5, it can adapt to different water demand by selecting the lowest energy consumption method for heating in different heating modes, such as heat pump device 3 as the heat source alone, gas device 4 and heat pump device 3 as the heat source simultaneously, and gas device 4 as the heat source alone. Compared with a water heater system using a single energy source, the heat supply and energy consumption are no longer fixed, thus meeting diverse water demand while taking into account energy saving and environmental protection effects.

[0065] In one feasible implementation, the flow direction adjustment component 5 includes:

[0066] The first control valve 51 is connected to both the water inlet pipe 1 and the water inlet of the gas equipment 4.

[0067] The second control valve 52, the outlet of the first water storage device 33 and the first pipeline 501 between the first control valve 51 and the inlet of the gas equipment 4 are all connected to the second control valve 52.

[0068] The third control valve 53, the second pipeline 502 between the second control valve 52 and the outlet of the first water storage device 33, and the third pipeline 503 between the outlet pipeline 2 and the outlet of the gas equipment 4 are all connected to the third control valve 53.

[0069] The first control valve 51 may include a solenoid valve or an electrically operated shut-off valve, etc. The second control valve 52 may include a solenoid valve or an electrically operated shut-off valve, etc. The third control valve 53 may include a solenoid valve or an electrically operated shut-off valve, etc.

[0070] In the first operating state, the first control valve 51 is open, the second control valve 52 is closed, and the third control valve 53 is closed.

[0071] In the second operating state, the first control valve 51 is closed, the second control valve 52 is open, and the third control valve 53 is closed.

[0072] In the third operating state, the first control valve 51 is closed, the second control valve 52 is closed, and the third control valve 53 is open.

[0073] In this embodiment, by coordinating the above-mentioned control valves, the gas equipment 4 and heat pump equipment 3 in the composite system can adapt to the actual water demand and supply energy in a way that is as energy-efficient and environmentally friendly as possible, thereby achieving precise satisfaction of water demand while taking into account energy-saving and environmental protection effects.

[0074] In one feasible implementation, the composite system further includes a flue pipe 401, which is connected to the flue outlet of the gas equipment 4 and is heat-exchange connected to the water inlet pipe 1.

[0075] The flue gas discharged from the exhaust port of the gas equipment 4 can heat the water flowing into the water inlet pipe 1, which is beneficial to the high water inlet temperature and thus saves energy consumption in the water heating process.

[0076] In one feasible implementation, the composite system further includes a fourth pipe 6, one end of which is connected to the inlet pipe 1, and the other end of which is connected to the outlet pipe 2 via a mixing valve.

[0077] When the mixing valve is opened, the cold water flowing out of the fourth pipe 6 can be mixed with the hot water in the outlet pipe 2. The mixing valve can adjust the mixing ratio of cold water and hot water.

[0078] In this embodiment, the above method ensures that the outlet water temperature is accurately matched with the user's needs.

[0079] In one feasible implementation, the refrigerant circulation loop further includes a first throttling device 34 and a second heat exchange module 35, wherein the first heat exchange module 32, the first throttling device 34 and the second heat exchange module 35 are connected in sequence, and both the first heat exchange module 32 and the second heat exchange module 35 are connected to the compressor 31.

[0080] The heat pump device 3 further includes a first refrigerant branch 303, a second water storage device 39, and a first refrigerant switching component 301. The first refrigerant branch 303 includes a third heat exchange module 38 and a second throttling device 37 connected in series. The third heat exchange module 38 is heat exchanged with the second water storage device 39. The first ends of the first throttling device 34, the second throttling device 37, and the second heat exchange module 35 are all connected to the first refrigerant switching component 301. The second end of the second heat exchange module 35 is connected to the third heat exchange module 38.

[0081] The first refrigerant switching component 301 has two operating states: a first state and a second state. In the first state, the first throttling device 34 is connected to the second heat exchange module 35. In the second state, the first throttling device 34 is connected to the second throttling device 37.

[0082] In the first state, the first throttling device 34 is blocked from the second throttling device 37 and the second throttling device 37 is blocked from the second heat exchange module 35. In the second state, the first throttling device 34 is blocked from the second heat exchange module 35 and the first throttling device 34 is blocked from the second throttling device 37.

[0083] The first refrigerant switching component 301 may include a multi-way valve, a combination of more than one solenoid valve, or a combination of more than one one-way valve 8, etc. In this embodiment, the first refrigerant switching component 301 is a first three-way valve, and the first ends of the first throttling device 34, the second throttling device 37, and the second heat exchange module 35 are respectively connected to different valve ports of the first three-way valve. Based on this, the switching efficiency of the refrigerant flow direction in the heat pump equipment 3 can be effectively improved by switching the valve position of the first three-way valve.

[0084] When the exhaust port of compressor 31 is connected to the first heat exchange module 32, the first refrigerant switching component 301 operates in the first state. The refrigerant discharged by compressor 31 in the refrigerant circulation loop flows sequentially through the first heat exchange module 32, the first throttling device 34, and the second heat exchange module 35 before returning to compressor 31. The first heat exchange module 32 can release heat to heat the water in the first water storage device 33. The second heat exchange module 35 does not exchange heat with the water in the second water storage device 39.

[0085] When the exhaust port of compressor 31 is connected to the first heat exchange module 32, the first refrigerant switching component 301 operates in the second state. The refrigerant discharged by compressor 31 in the refrigerant circulation loop flows sequentially through the first heat exchange module 32, the first throttling device 34, the second throttling device 37 and the third heat exchange module 38 before returning to compressor 31. The first heat exchange module 32 can release heat to heat the water in the first water storage device 33. The water in the second water storage device 39 can absorb the cooling capacity of the second heat exchange module 35 and store it.

[0086] In this embodiment, when the water temperature in the second water storage device 39 is greater than the preset water temperature, the first refrigerant switching component 301 operates in the second state; when the water temperature in the second water storage device 39 is less than or equal to the preset water temperature, the first refrigerant switching component 301 operates in the first state.

[0087] In this embodiment, the composite system can effectively balance hot water production and cold storage through the above-described method.

[0088] In other embodiments, the first refrigerant switching component 301 may also include a first solenoid valve and a second solenoid valve. The first solenoid valve is located between the second heat exchange module 35 and the first throttling device 34. The pipeline between the first solenoid valve and the first throttling device 34 and the second throttling device 37 are respectively connected to both ends of the second solenoid valve.

[0089] In one feasible implementation, the refrigerant circulation loop further includes a reversing assembly 36, through which the exhaust port of the compressor 31, the return port of the compressor 31, the first heat exchange module 32, and the second end of the second heat exchange module 35 are connected;

[0090] The heat pump device 3 also includes a second refrigerant switching component 302, and the reversing component 36, the second end of the second heat exchange module 35 and the third heat exchange module 38 are connected through the second refrigerant switching component 302;

[0091] The second refrigerant switching component 302 is configured to switch between a third state and a fourth state. In the third state, the reversing component 36 is connected to the second heat exchange module 35, and in the fourth state, the reversing component 36 is connected to the third heat exchange module 38.

[0092] In the third state, the commutation component 36 is blocked from the third heat exchange module 38, and in the fourth state, the commutation component 36 is blocked from the second heat exchange module 35.

[0093] The second refrigerant switching assembly 302 may include a multi-way valve, a combination of more than one solenoid valve, or a combination of more than one one-way valve 8, etc. In this embodiment, the second refrigerant switching assembly 302 includes a second three-way valve, and the reversing assembly 36, the second end of the second heat exchange module 35, and the third heat exchange module 38 are respectively connected to different valve ports of the second three-way valve. Based on this, the switching efficiency of the refrigerant flow direction in the heat pump equipment 3 can be effectively improved by switching the valve position of the second three-way valve.

[0094] When the reversing assembly 36 is in the first operating state, the first refrigerant switching assembly 301 is in the first state, and the second refrigerant switching assembly 302 is in the third state, the refrigerant discharged from the compressor 31 in the refrigerant circulation loop flows sequentially through the first heat exchange module 32, the first throttling device 34, and the second heat exchange module 35 before returning to the compressor 31. The first heat exchange module 32 can release heat to heat the water in the first water storage device 33, while the second heat exchange module 35 does not exchange heat with the water in the second water storage device 39.

[0095] When the reversing assembly 36 operates in the first operating state, the first refrigerant switching assembly 301 operates in the second state, and the second refrigerant switching assembly 302 operates in the fourth state, the refrigerant discharged from the compressor 31 in the refrigerant circulation loop flows sequentially through the first heat exchange module 32, the first throttling device 34, the second throttling device 37, and the third heat exchange module 38 before returning to the compressor 31. The first heat exchange module 32 can release heat to heat the water in the first water storage device 33, and the water in the second water storage device 39 can absorb the cooling capacity of the second heat exchange module 35 and store it.

[0096] When the reversing assembly 36 is operating in the second operating state, the first refrigerant switching assembly 301 is operating in the first state, and the second refrigerant switching assembly 302 is operating in the third state, the refrigerant discharged from the compressor 31 in the refrigerant circulation loop flows sequentially through the second heat exchange module 35, the first throttling device 34, and the first heat exchange module 32 before returning to the compressor 31. The second heat exchange module 35 can release heat to melt the frost on the second heat exchange module 35.

[0097] In this embodiment, the switching component 36, the first refrigerant switching component 301, and the second refrigerant switching component 302 work together to effectively balance hot water production, cold storage, and defrosting.

[0098] In other embodiments, the second refrigerant switching assembly 302 may also include a third solenoid valve and a fourth solenoid valve. The third solenoid valve is located between the second heat exchange module 35 and the reversing assembly 36. The pipeline between the third solenoid valve and the third heat exchange module 38 is respectively connected to both ends of the fourth solenoid valve.

[0099] In one feasible implementation, the operating state of the first refrigerant switching component 301 further includes a fifth state, in which the second heat exchange module 35 is connected to the second throttling device 37; the heat pump device 3 further includes a second refrigerant branch 304, a fifth pipe 305 between the second refrigerant switching component 302 and the third heat exchange module 38 is connected to one end of the second refrigerant branch 304, a sixth pipe 306 between the return port and the reversing component 36 is connected to the other end of the second refrigerant branch 304, and the second refrigerant branch 304 is provided with a fourth control valve 9.

[0100] In the fifth state, the second throttling device 37 is blocked from the first throttling device 34, and the first throttling device 34 is blocked from the second heat exchange module 35.

[0101] The fourth control valve 9 may include a solenoid valve or an electric shut-off valve, etc.

[0102] The reversing assembly 36 operates in the second operating state, the first refrigerant switching assembly 301 operates in the fifth state, the second refrigerant switching assembly 302 operates in the third state, and the fourth control valve 9 is open. The refrigerant discharged from the compressor 31 flows sequentially through the second heat exchange module 35, the second throttling device 37, and the third heat exchange module 38 before returning to the compressor 31. The third heat exchange module 38 is in an evaporation state. The second water storage device 39 can store the cold energy released by the third heat exchange module 38. The first heat exchange module 32 will not release heat if there is no refrigerant flow. In some scenarios, the second heat exchange module 35 can release heat to melt frost.

[0103] When the reversing assembly 36 is operating in the first operating state, the first refrigerant switching assembly 301 is operating in the second state, and the second refrigerant switching assembly 302 is operating in the fourth state, the fourth control valve 9 is closed.

[0104] When the reversing assembly 36 is operating in the first operating state, the first refrigerant switching assembly 301 is operating in the first state, and the second refrigerant switching assembly 302 is operating in the third state, the fourth control valve 9 is closed.

[0105] In this embodiment, the heat pump device 3 can achieve cold storage without heat storage or defrosting while simultaneously meeting hot water demand, thereby further satisfying different usage needs.

[0106] In other embodiments, the first refrigerant switching component 301 may also include a first solenoid valve, a second solenoid valve, and a fifth solenoid valve. The second heat exchange module 35, the first solenoid valve, the fifth solenoid valve, and the first throttling device 34 are arranged in sequence. The pipeline between the first solenoid valve and the fifth solenoid valve and the second throttling device 37 are respectively connected to both ends of the second solenoid valve.

[0107] In one feasible implementation, the heat pump device 3 further includes a water circulation loop 7, which includes an indoor terminal device 71. The water circulation loop 7 also includes a first heat exchanger 72 and / or a second heat exchanger 73. The first heat exchanger 72 is heat-exchange connected to the first water storage device 33, and the second heat exchanger 73 is heat-exchange connected to the second water storage device 39.

[0108] A water pump can be installed in the water circulation loop 7. When the water pump is turned on, it can drive water to circulate in the water circulation loop 7 so that the indoor terminal device 71 can use the energy stored in the first water storage device 33 or the second water storage device 39 to regulate the indoor air.

[0109] The indoor terminal device 71 may include a convective heat exchanger or a radiative heat exchanger, etc.

[0110] In this embodiment, the indoor terminal device 71 is a convection heat exchange device. The indoor terminal device 71 includes an indoor heat exchanger and an indoor fan corresponding to the indoor heat exchanger. The indoor fan can drive the air in the indoor space to exchange heat with the indoor heat exchanger. When the indoor heat exchanger is in a condensing state, it can raise the temperature of the indoor space. When the indoor heat exchanger is in an evaporating state, it can lower the temperature of the indoor space.

[0111] When the water circulation loop 7 includes a first heat exchanger 72, the indoor terminal device 71 can use the heat stored in the first water storage device 33 to raise the indoor temperature; when the water circulation loop 7 includes a second heat exchanger 73, the indoor terminal device 71 can use the cold energy stored in the second water storage device 39 to lower the indoor temperature.

[0112] In this embodiment, when the indoor terminal device 71 is turned on and running in cooling mode, and the water temperature of the first water storage device 33 is greater than or equal to the set water temperature, the reversing component 36 operates in the second operating state, the first refrigerant switching component 301 operates in the fifth state, the second refrigerant switching component 302 operates in the third state, and the fourth control valve 9 is opened, the first throttling device 34 is closed, the indoor fan is turned on, the compressor 31 is turned on, and the flow direction switching component 74 operates to make the flow direction in the water circulation loop 7 the second flow direction, satisfying the indoor cooling demand without affecting the hot water demand. When the water temperature of the first water storage device 33 is less than the set temperature and when the heat pump device 3 is turned on, the reversing component 36 operates in the first operating state, the first refrigerant switching component 301 operates in the first state, the second refrigerant switching component 302 operates in the third state, and the fourth control valve 9 is closed, the second throttling device 37 is closed, the indoor fan is turned on, and the compressor 31 is turned on, satisfying the indoor cold storage demand while satisfying the hot water demand. When the module temperature of the second heat exchange module 35 is lower than the preset module temperature for a first duration and the compressor 31 continues to run for a second duration, the reversing component 36 operates in a second operating state, the first refrigerant switching component 301 operates in a first state, the second refrigerant switching component 302 operates in a third state, and the fourth control valve 9 is closed, the second throttling device 37 is closed, the indoor fan is turned on, and the compressor 31 is turned on, the defrosting of the second heat exchange module 35 can be realized.

[0113] In this embodiment, in addition to providing heat for hot water, the heat pump device 3 can also regulate the air temperature of the indoor space, thereby meeting the hot water demand while improving indoor comfort.

[0114] In one feasible implementation, the water circulation loop 7 includes a first heat exchanger 72, a second heat exchanger 73, and a flow direction switching component 74, wherein the indoor terminal device 71, the first heat exchanger 72, and the second heat exchanger 73 are all connected to the flow direction switching component 74.

[0115] The flow direction switching component 74 is configured to switch the water flow direction in the water circulation loop 7 between a first flow direction and a second flow direction. The first flow direction is that water circulates between the first heat exchanger 72 and the indoor terminal device 71, and the second flow direction is that water circulates between the second heat exchanger 73 and the indoor terminal device 71.

[0116] The flow direction switching component 74 may include more than one multi-way valve or more than one solenoid valve or a combination of solenoid valve and multi-way valve, etc.

[0117] In this embodiment, the branch containing the first heat exchanger 72 is defined as the first branch, and the branch containing the second heat exchanger 73 is defined as the second branch. The flow direction switching component 74 includes a third three-way valve 741 and a fourth three-way valve 742. The first end of the first branch, the first end of the second branch, and the first end of the indoor terminal device 71 are respectively connected to different valve ports of the third three-way valve 741. The second end of the first branch, the second end of the second branch, and the second end of the indoor terminal device 71 are respectively connected to different valve ports of the fourth three-way valve 742. The valve position of the third three-way valve 741 is switched... The device can switch between a first connected state and a second connected state. In the first connected state, the first end of the first branch is connected to the first end of the indoor terminal device 71. In the second connected state, the first end of the second branch is connected to the first end of the indoor terminal device 71. The valve position switching of the fourth three-way valve 742 can switch the device between a third connected state and a fourth connected state. In the third connected state, the second end of the first branch is connected to the second end of the indoor terminal device 71. In the fourth connected state, the second end of the second branch is connected to the second end of the indoor terminal device 71. The first connected state and the third connected state work together to achieve a first flow direction, and the second connected state and the fourth connected state work together to achieve a second flow direction.

[0118] In this embodiment, the heat pump device 3 can meet both the hot water demand and the indoor cooling and heating demand in addition to the hot water demand.

[0119] In other embodiments, the flow direction switching component 74 may also include a sixth solenoid valve disposed on the first branch and a seventh solenoid valve disposed on the second branch. When the sixth solenoid valve is open and the seventh solenoid valve is closed, the water flow direction is the first flow direction, and when the sixth solenoid valve is closed and the seventh solenoid valve is open, the water flow direction is the second flow direction.

[0120] In one feasible implementation, the water inlet pipe 1 is connected to the water inlet of the second water storage device 39. Based on this, water can be replenished through the water inlet pipe 1 when the water in the second water storage device 39 is insufficient.

[0121] In this embodiment, the composite system further includes a one-way valve 8 disposed between the inlet pipe 1 and the second water storage device 39. The one-way valve 8 is configured to allow one-way flow from the inlet pipe 1 to the inlet of the second water storage device 39. This effectively prevents water in the second water storage device 39 from flowing back into the inlet pipe 1, which is beneficial for meeting hot water needs, indoor comfort, energy conservation and environmental protection requirements, and improving the stability of system operation.

[0122] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A composite system, characterized in that, The composite system includes a heat pump device, a gas device, an inlet water pipe, an outlet water pipe, and a flow direction regulating component; The heat pump equipment includes a refrigerant circulation loop and a first water storage device. The refrigerant circulation loop includes a compressor and a first heat exchange module. The first heat exchange module is connected to the first water storage device for heat exchange. The water outlet pipe, the water inlet pipe, the water inlet of the gas equipment, the water outlet of the gas equipment, the water outlet of the first water storage device, and the water inlet of the first water storage device are all connected to the flow direction adjustment component. The flow direction adjustment component includes a first operating state, a second operating state, and a third operating state: The first operating state is set such that the water flowing out of the inlet pipe does not flow through the first water storage device and flows through the gas equipment before flowing into the outlet pipe; The second operating state is set so that the water flowing out of the inlet pipe flows sequentially through the first water storage device and the gas equipment before flowing into the outlet pipe; The third operating state is set so that the water flowing out of the inlet pipe does not flow through the gas equipment but flows through the first water storage device before flowing into the outlet pipe.

2. The composite system as described in claim 1, characterized in that, The flow direction adjustment component includes: The first control valve is connected to both the water inlet pipe and the water inlet of the gas equipment. The second control valve is connected to the outlet of the first water storage device and the first pipeline between the first control valve and the inlet of the gas equipment. The third control valve, the second pipeline between the second control valve and the outlet of the first water storage device, and the third pipeline between the outlet pipeline and the outlet of the gas equipment are all connected to the third control valve.

3. The composite system as described in claim 1, characterized in that, The composite system also includes a flue gas exhaust pipe, which is connected to the flue gas outlet of the gas equipment and is heat-exchange connected to the water inlet pipe.

4. The composite system as described in claim 1, characterized in that, The composite system also includes a fourth pipeline, one end of which is connected to the inlet pipeline, and the other end of which is connected to the outlet pipeline via a mixing valve.

5. The composite system as described in any one of claims 1 to 4, characterized in that, The refrigerant circulation loop also includes a first throttling device and a second heat exchange module. The first heat exchange module, the first throttling device, and the second heat exchange module are connected in sequence. Both the first heat exchange module and the second heat exchange module are connected to the compressor. The heat pump equipment further includes a first refrigerant branch, a second water storage device, and a first refrigerant switching component. The first refrigerant branch includes a third heat exchange module and a second throttling device connected in series. The third heat exchange module is heat exchanged with the second water storage device. The first throttling device, the second throttling device, and the first end of the second heat exchange module are all connected to the first refrigerant switching component. The second end of the second heat exchange module is connected to the third heat exchange module. The operating states of the first refrigerant switching component include a first state and a second state. In the first state, the first throttling device is connected to the second heat exchange module, and in the second state, the first throttling device is connected to the second throttling device.

6. The composite system as described in claim 5, characterized in that, The first refrigerant switching component is a first three-way valve, and the first end of the first throttling device, the second throttling device, and the second heat exchange module are respectively connected to different valve ports of the first three-way valve.

7. The composite system as described in claim 5, characterized in that, The refrigerant circulation loop also includes a reversing assembly, and the compressor's exhaust port, the compressor's return port, the first heat exchange module, and the second end of the second heat exchange module are connected through the reversing assembly; The heat pump device further includes a second refrigerant switching component, and the reversing component, the second end of the second heat exchange module, and the third heat exchange module are connected through the second refrigerant switching component; The second refrigerant switching component is configured to switch between a third state and a fourth state. In the third state, the reversing component is connected to the second heat exchange module, and in the fourth state, the reversing component is connected to the third heat exchange module.

8. The composite system as described in claim 7, characterized in that, The second refrigerant switching component includes a second three-way valve, and the reversing component, the second end of the second heat exchange module, and the third heat exchange module are respectively connected to different valve ports of the second three-way valve.

9. The composite system as described in claim 7, characterized in that, The operating state of the first refrigerant switching component also includes a fifth state, in which the second heat exchange module is connected to the second throttling device; The heat pump equipment also includes a second refrigerant branch, a fifth pipeline between the second refrigerant switching component and the third heat exchange module is connected to one end of the second refrigerant branch, a sixth pipeline between the return port and the reversing component is connected to the other end of the second refrigerant branch, and a fourth control valve is provided in the second refrigerant branch.

10. The composite system as described in claim 5, characterized in that, The heat pump equipment further includes a water circulation loop, which includes an indoor terminal device and a first heat exchanger and / or a second heat exchanger. The first heat exchanger is connected to the first water storage device for heat exchange, and the second heat exchanger is connected to the second water storage device for heat exchange.

11. The composite system as described in claim 10, characterized in that, The water circulation loop includes a first heat exchanger, a second heat exchanger, and a flow direction switching component. The indoor terminal device, the first heat exchanger, and the second heat exchanger are all connected to the flow direction switching component. The flow direction switching component is configured to switch the water flow direction in the water circulation loop between a first flow direction and a second flow direction. The first flow direction is for water to circulate between the first heat exchanger and the indoor terminal device, and the second flow direction is for water to circulate between the second heat exchanger and the indoor terminal device.

12. The composite system as described in claim 11, characterized in that, The flow direction switching component includes a third three-way valve and a fourth three-way valve. The branch where the first heat exchanger is located is the first branch, and the branch where the second heat exchanger is located is the second branch. The first end of the first branch, the first end of the second branch, and the first end of the indoor terminal device are respectively connected to different valve ports of the third three-way valve. The second end of the first branch, the second end of the second branch, and the second end of the indoor terminal device are respectively connected to different valve ports of the fourth three-way valve.

13. The composite system as described in claim 10, characterized in that, The indoor terminal device includes an indoor heat exchanger and an indoor fan corresponding to the indoor heat exchanger.

14. The composite system as described in claim 5, characterized in that, The water inlet pipe is connected to the water inlet of the second water storage device.

15. The composite system as described in claim 14, characterized in that, The composite system also includes a one-way valve located between the water inlet pipe and the second water storage device, wherein the one-way valve is configured to allow one-way flow from the water inlet pipe to the water inlet of the second water storage device.

Images