Heat exchange equipment and control method thereof

Abstract

The present invention relates to a heat exchange device and a control method thereof, wherein the heat exchange device comprises: a first heat exchanger having a first inlet and a first outlet that are interconnected; at least two heat dissipation mechanisms, each heat dissipation mechanism being correspondingly arranged in each indoor space and having a second inlet and a second outlet that are interconnected; the second inlet of each heat dissipation mechanism being controllably connected to the first outlet of the first heat exchanger, and the second outlet of each heat dissipation mechanism being controllably connected to the first inlet of the first heat exchanger; wherein the heat exchange device further comprises a bypass passage, and the bypass passage is controllably connected to at least two heat dissipation mechanisms. When a user wants to move from one of the indoor spaces corresponding to the two heat dissipation mechanisms connected through the bypass passage to another indoor space, the hot water in the heat dissipation mechanism corresponding to the indoor space that has been moved out can be transported to the heat dissipation mechanism corresponding to the indoor space that is about to be moved into through the bypass passage, so as to heat the indoor space that has been moved into, thereby reducing the preheating waiting time.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange, and in particular to a heat exchange device and a control method thereof. Background Art

[0002] Heat exchange equipment is a device that can transfer heat from hot fluid to cold fluid. As a heat exchange device, the wall-mounted boiler uses natural gas as energy, has a powerful home central heating function, can meet the heating needs of multiple rooms, and has been widely used in people's lives.

[0003] Conventional wall-mounted boilers provide uniform heating to indoor spaces, which cannot meet the differentiated heating needs of users for different indoor spaces, resulting in a waste of resources. In order to meet the differentiated heating needs of users for different indoor spaces, wall-mounted boilers for room-specific heating came into being.

[0004] However, for traditional wall-mounted boilers with room-by-room control, when users want to move from one indoor space to another, they need to preheat in advance, and the preheating waiting time is long. Summary of the invention

[0005] Based on this, it is necessary to provide a heat exchange device and a control method thereof that can reduce the preset waiting time to address the problem of long preheating waiting time of traditional wall-mounted boilers.

[0006] A heat exchange device, comprising:

[0007] A first heat exchanger having a first inlet and a first outlet connected to each other;

[0008] At least two heat dissipation mechanisms, each of which is correspondingly arranged in each indoor space and has a second inlet and a second outlet that are connected to each other; the second inlet of each heat dissipation mechanism is controllably connected to the first outlet of the first heat exchanger, and the second outlet of each heat dissipation mechanism is controllably connected to the first inlet of the first heat exchanger;

[0009] Wherein, the heat exchange device further comprises a bypass passage, and the bypass passage is controllably connected to at least two of the heat dissipation mechanisms.

[0010] In one of the embodiments, the bypass passage is controllably connected to any two of the heat dissipation mechanisms.

[0011] In one embodiment, one bypass passage is provided between every two heat dissipation mechanisms, and all the bypass passages are independent of each other.

[0012] In one of the embodiments, the heat exchange device further includes a first valve, which is mounted on the bypass passage and is used to control the on-off between the two heat dissipation mechanisms.

[0013] In one of the embodiments, the heat exchange device further comprises a first power mechanism, which can provide flow force for the liquid to flow between the two heat dissipation mechanisms connected through the bypass passage.

[0014] In one embodiment, the bypass passage is controllably connected to any two of the heat dissipation mechanisms;

[0015] The number of the first power mechanisms is equal to the number of the heat dissipation mechanisms, and each heat dissipation mechanism is provided with a corresponding first power mechanism.

[0016] In one embodiment, the heat exchange device further comprises:

[0017] Liquid inlet passages, the number of which is equal to that of the heat dissipation mechanisms and are arranged in one-to-one correspondence, and each of the liquid inlet passages is controllably connected between the first outlet of the first heat exchanger and the second inlet of each of the heat dissipation mechanisms;

[0018] The number of the liquid outlet passages is equal to that of the heat dissipation mechanisms and they are arranged in one-to-one correspondence, and each of the liquid outlet passages is controllably connected between the second outlet of each of the heat dissipation mechanisms and the first inlet of the first heat exchanger.

[0019] In one of the embodiments, the bypass passage is connected to the heat dissipation mechanism through the liquid inlet passage; or the bypass passage is connected to the heat dissipation mechanism through the liquid outlet passage.

[0020] In one embodiment, the heat exchange device further includes second valves whose number is equal to the liquid inlet passages, and each of the second valves is installed on each of the liquid inlet passages to control the on-off of the liquid inlet passages.

[0021] In one of the embodiments, the heat exchange device further includes third valves whose number is equal to the liquid outlet passages, and each of the third valves is installed on each of the liquid outlet passages to control the opening and closing of the liquid outlet passages.

[0022] In one embodiment, the heat exchange device is a wall-mounted boiler.

[0023] A method for controlling a heat exchange device comprises the following steps:

[0024] Get the status of the initial heat dissipation mechanism;

[0025] When the state of the initial heat dissipation mechanism is switched from the liquid-intake state to the liquid-intake termination state;

[0026] The bypass passage is controlled to be open, and the liquid in the initial heat dissipation mechanism flows to the target heat dissipation mechanism through the bypass passage.

[0027] In the above heat exchange device and control method thereof, since each heat dissipation mechanism is correspondingly arranged in a different indoor space, when a user wants to move from one indoor space corresponding to two heat dissipation mechanisms connected by a bypass passage to another indoor space, the hot water in the heat dissipation mechanism corresponding to the indoor space moved out can be transported to the heat dissipation mechanism corresponding to the indoor space to be moved into through the bypass passage, so as to heat the indoor space to be moved into, thereby reducing the preheating waiting time. At the same time, the bypass passage transports the hot water in the heat dissipation mechanism corresponding to the indoor space moved out to the heat dissipation mechanism corresponding to the indoor space to be moved into, thereby reducing the waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a heat exchange device provided in one embodiment of the present invention;

[0029] Figure 2 This is a flow chart of a method for controlling a heat exchange device provided in one embodiment of the present invention.

[0030] 100, heat exchange equipment; 10, first heat exchanger; 21, first heat dissipation mechanism; 22, second heat dissipation mechanism; 23, third heat dissipation mechanism; 30, burner; 40, gas passage; 50, gas proportional valve; 60, fan; 70, smoke exhaust pipe; 81, first liquid inlet passage; 82, second liquid inlet passage; 83, third liquid inlet passage; 91, first liquid outlet passage; 92, second liquid outlet passage; 93, third liquid outlet passage; 110, liquid distributor; 120, second valve; 130, liquid collector; 141, first three-way valve; 142. Second three-way valve; 143. Four-way valve; 150. Second power mechanism; 161. First bypass passage; 162. Second bypass passage; 163. Third bypass passage; 170. First power mechanism; 180. First temperature sensor; 190. Second heat exchanger; 200. Cold water passage; 210. Domestic water passage; 220. First passage; 230. Second passage; 240. Third passage; 250. Fourth passage; 260. Second temperature sensor; 270. Fifth passage; 280. Expansion tank. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0037] See also Figure 1 An embodiment of the present invention provides a heat exchange device 100, specifically, the heat exchange device 100 is a wall-mounted boiler. It should be understood that in other embodiments, the type of the heat exchange device 100 is not limited.

[0038] The following takes the heat exchange device 100 as a wall-mounted boiler as an example to describe the technical solution of the present invention in detail. This embodiment is only used as an example and does not limit the technical scope of the present invention. Furthermore, the drawings in the embodiments also omit unnecessary components and clearly show the technical features of the present invention.

[0039] The wall-mounted boiler includes a first heat exchanger 10 and a heat dissipation mechanism. The first heat exchanger 10 has a first inlet and a first outlet that are interconnected. The heat dissipation mechanism is arranged in the indoor space and has a second inlet and a second outlet that are interconnected. The second inlet of the heat dissipation mechanism is controllably connected to the first outlet of the first heat exchanger 10, and the second outlet of the heat dissipation mechanism is controllably connected to the first inlet of the first heat exchanger 10. The wall-mounted boiler also includes a burner 30, which is used to provide energy for exchanging heat with water flowing in the first heat exchanger 10.

[0040] When the second inlet of the heat dissipation mechanism is connected to the first outlet of the first heat exchanger 10, and the second outlet of the heat dissipation mechanism is connected to the first inlet of the first heat exchanger 10, the water in the heat dissipation mechanism enters the first heat exchanger 10 from the second outlet through the first inlet, the flue gas generated by the burner 30 exchanges heat with the water flowing in the first heat exchanger 10, and the water formed after the heat exchange flows to the first outlet, re-enters the heat dissipation mechanism through the second inlet of the heat dissipation mechanism for recirculation, thereby achieving heating of the indoor space.

[0041] The wall-mounted boiler includes a controller, the burner 30 is connected to the controller, and the controller controls the burner 30 to work.

[0042] The wall-mounted boiler further includes a gas passage 40, a gas proportional valve 50, a fan 60 and a smoke exhaust pipe 70. The gas passage 40 is in communication with the burner 30. The gas proportional valve 50 is electrically connected to the controller and mounted on the gas passage 40, and is used to adjust the proportion of the gas flowing to the burner 30. The fan 60 is electrically connected to the controller, and is used to discharge the smoke formed after heat exchange with the water in the first heat exchanger 10 into the smoke pipe, and then discharged to the outside from the smoke pipe.

[0043] The wall-mounted boiler also includes a liquid inlet passage and a liquid outlet passage. The liquid inlet passage is controllably connected between the second inlet of the heat dissipation mechanism and the first outlet of the first heat exchanger 10 , and the liquid outlet passage is controllably connected between the second outlet of the heat dissipation mechanism and the first inlet of the first heat exchanger 10 .

[0044] When the liquid inlet passage is connected to the first heat exchanger 10 and the heat dissipation mechanism, and the liquid outlet passage is connected to the first heat exchanger 10 and the heat dissipation mechanism, the water in the heat dissipation mechanism flows to the first heat exchanger 10 through the liquid outlet passage, the flue gas generated by the burner 30 exchanges heat with the water flowing in the first heat exchanger 10, the water formed after the heat exchange flows to the liquid inlet passage, and flows from the liquid inlet passage to the heat dissipation mechanism, the water in the heat dissipation mechanism exchanges heat with the indoor cold air, the water temperature is reduced, and it flows from the heat dissipation mechanism to the liquid outlet passage for recirculation, thereby achieving heating of the indoor space.

[0045] Furthermore, the heat dissipation mechanism includes at least two, each heat dissipation mechanism is arranged in each indoor space, the liquid inlet passage and the liquid outlet passage are equal to the number of the heat dissipation mechanisms and are arranged one-to-one, each liquid inlet passage is controlled to be connected between the first outlet of the first heat exchanger 10 and the second inlet of each heat dissipation mechanism, and each liquid outlet passage is controlled to be connected between the second outlet of each heat dissipation mechanism and the first inlet of the first heat exchanger 10.

[0046] In this way, the wall-mounted boiler can heat multiple different indoor spaces. At the same time, since each liquid inlet passage is controlled to connect between the second inlet of each heat dissipation mechanism and the first outlet of the first heat exchanger 10, and each liquid outlet passage is controlled to connect between the second outlet of each heat dissipation mechanism and the first inlet of the first heat exchanger 10, multiple indoor spaces can be selectively heated instead of central heating.

[0047] Specifically, the liquid inlet passage and the liquid outlet passage are both tubular structures. Of course, in other embodiments, the shapes of the liquid inlet passage and the liquid outlet passage are not limited.

[0048] In one embodiment, the wall-mounted boiler further includes a liquid separator 110, and each liquid inlet passage is connected to the first heat exchanger 10 through the liquid separator 110, that is, the liquid separator 110 is connected to the first outlet of the first heat exchanger 10 through the first passage 220, and all ends of the liquid inlet passages that are not connected to the heat dissipation mechanism are connected to the liquid separator 110, and the hot water flowing out of the first outlet of the first heat exchanger 10 passes through the liquid separator 110 to the liquid inlet passage. It should be understood that in other embodiments, the wall-mounted boiler can also omit the liquid separator 110, and the liquid inlet passage can be directly connected to the first heat exchanger 10, or all the liquid inlet passages are converged into one liquid inlet passage to be connected to the first heat exchanger 10, or all the liquid inlet passages are converged together to be connected to the first heat exchanger 10 through an additional pipeline, which is not limited here.

[0049] Furthermore, the wall-mounted boiler further includes a second valve 120. The number of the second valves 120 is equal to the number of the liquid inlet passages. Each second valve 120 is mounted on each liquid inlet passage to control the on-off of the liquid inlet passage. Specifically, the second valve 120 is an electrically controlled stop valve and is electrically connected to the controller, which controls the on-off of the second valve 120.

[0050] In one embodiment, continue to refer to Figure 1 The wall-mounted boiler further includes a liquid collector 130, and each liquid outlet passage is connected to the first heat exchanger 10 through the liquid collector 130, that is, the liquid collector 130 is connected to the first inlet of the first heat exchanger 10 through the second passage 230, and all ends of the liquid outlet passages that are not connected to the heat dissipation mechanism are connected to the liquid collector 130, and the water flowing out of the heat dissipation mechanism passes through the liquid collector 130 to the first heat exchanger 10. It should be understood that in other embodiments, the wall-mounted boiler can also omit the liquid collector 130, and the liquid outlet passage can be directly connected to the first heat exchanger 10, or all the liquid outlet passages are gathered into one liquid outlet passage to be connected to the first heat exchanger 10, or all the liquid outlet passages are gathered together to be connected to the first heat exchanger 10 through an additional pipeline, which is not limited here.

[0051] Furthermore, the wall-mounted boiler further includes a third valve, the number of which is equal to the number of liquid outlet passages, and each third valve is mounted on each liquid outlet passage to control the on and off of the liquid outlet passage. Specifically, the second valve 120 is an electrically controlled stop valve and is electrically connected to a controller, which controls the on and off of the third valve.

[0052] Through the above arrangement, when it is necessary to heat the indoor space corresponding to one of the heat dissipation mechanisms, since each heat dissipation mechanism corresponds to a liquid outlet passage and a liquid inlet passage, the controller controls the second valve 120 installed on the liquid inlet passage corresponding to the above heat dissipation mechanism to open, and the third valve installed on the liquid outlet passage corresponding to the above heat dissipation mechanism to open, and the liquid circulates between the heat dissipation mechanism, the liquid outlet passage, the liquid collector 130, the first heat exchanger 10, the liquid distributor 110 and the liquid inlet passage to achieve heating of the indoor space.

[0053] The wall-mounted boiler further includes a second power mechanism 150, which is disposed on the second passage 230 and is used to provide flow force for water to flow between the first heat exchanger 10, the liquid inlet passage, the heat dissipation mechanism and the liquid outlet passage. Specifically, the second power mechanism 150 is a water pump.

[0054] In one embodiment, the wall-mounted boiler further includes a bypass passage, which is controlled to connect at least two heat dissipation mechanisms. In this way, since each heat dissipation mechanism is correspondingly arranged in a different indoor space, when a user wants to move from one indoor space corresponding to the two heat dissipation mechanisms connected by the bypass passage to another indoor space, the hot water in the heat dissipation mechanism corresponding to the indoor space to be moved out can be transported to the heat dissipation mechanism corresponding to the indoor space to be moved into through the bypass passage, so as to heat the indoor space to be moved into, thereby reducing the preheating waiting time. At the same time, the bypass passage transports the hot water in the heat dissipation mechanism corresponding to the indoor space to be moved out to the heat dissipation mechanism corresponding to the indoor space to be moved into, thereby reducing the waste of resources.

[0055] Furthermore, the bypass passage is controlled to connect any two heat dissipation mechanisms. In this way, when a user moves from an indoor space corresponding to any heat dissipation mechanism to an indoor space corresponding to another heat dissipation mechanism, the hot water in the heat dissipation mechanism corresponding to the indoor space moved out can be transported to the heat dissipation mechanism corresponding to the indoor space to be moved into through the bypass passage, heating the indoor space to be moved into, thereby reducing the preheating waiting time.

[0056] In one embodiment, a bypass passage is provided between any two heat dissipation mechanisms, and all bypass passages are independent of each other. It should be understood that in other embodiments, some bypass passages may also have a common portion.

[0057] In one embodiment, the bypass passage is connected to the heat dissipation mechanism through the liquid inlet passage, so that any two heat dissipation mechanisms are connected. Taking two heat dissipation mechanisms as an example, the two heat dissipation mechanisms are respectively arranged in two indoor spaces, and the heat dissipation mechanism corresponding to the heat dissipation mechanism moved out of the indoor space is defined as the initial heat dissipation mechanism, and the heat dissipation mechanism corresponding to the heat dissipation mechanism moved into the indoor space is defined as the target heat dissipation mechanism. The liquid inlet passage corresponding to the initial heat dissipation mechanism is defined as the initial liquid inlet passage, and the liquid inlet passage corresponding to the target heat dissipation mechanism is defined as the target liquid inlet passage. The two ends of the bypass passage are respectively connected to the initial liquid inlet passage and the target liquid inlet passage. The liquid outlet passage corresponding to the initial heat dissipation mechanism is positioned as the initial liquid outlet passage, and the liquid outlet passage corresponding to the target heat dissipation mechanism is defined as the target liquid outlet passage.

[0058] In this arrangement, when the user enters the indoor space from the moving-out indoor space, the second valve 120 installed on the initial liquid inlet passage is controlled to be closed, the third valve installed on the initial liquid outlet passage is controlled to be closed, the second valve 120 installed on the target liquid inlet passage is controlled to be opened or closed, the third valve installed on the target liquid outlet passage is controlled to be opened, the bypass passage between the initial heat dissipation mechanism and the target heat dissipation mechanism is controlled to be connected, and the hot water in the initial heat dissipation mechanism flows into the target heat dissipation mechanism through the bypass passage.

[0059] In another embodiment, the bypass passage is connected to the heat dissipation mechanism through the liquid outlet passage, so that any two heat dissipation mechanisms are connected. Taking two heat dissipation mechanisms as an example, the two heat dissipation mechanisms are respectively arranged in two indoor spaces, and the heat dissipation mechanism corresponding to the heat dissipation mechanism moved out of the indoor space is defined as the initial heat dissipation mechanism, and the heat dissipation mechanism corresponding to the heat dissipation mechanism moved into the indoor space is defined as the target heat dissipation mechanism. The liquid inlet passage corresponding to the initial heat dissipation mechanism is defined as the initial liquid inlet passage, and the liquid inlet passage corresponding to the target heat dissipation mechanism is defined as the target liquid inlet passage. The two ends of the bypass passage are respectively connected to the initial liquid inlet passage and the target liquid inlet passage. The liquid outlet passage corresponding to the initial heat dissipation mechanism is positioned as the initial liquid outlet passage, and the liquid outlet passage corresponding to the target heat dissipation mechanism is defined as the target liquid outlet passage.

[0060] In this arrangement, when the user enters the indoor space from the moving-out indoor space, the second valve 120 installed on the initial liquid inlet passage is controlled to be closed, the third valve installed on the initial liquid outlet passage is controlled to be closed, the second valve 120 installed on the target liquid inlet passage is controlled to be opened or closed, the third valve installed on the target liquid outlet passage is controlled to be opened, the bypass passage between the initial heat dissipation mechanism and the target heat dissipation mechanism is controlled to be connected, and the hot water in the initial heat dissipation mechanism flows into the target heat dissipation mechanism through the bypass passage.

[0061] It should be understood that in other embodiments, the bypass passage is directly connected to the heat dissipation mechanism, which is not limited here.

[0062] In one embodiment, the wall-mounted boiler further includes a first valve, which is mounted on the bypass passage and is used to control the on-off between the two heat dissipation mechanisms. Specifically, when the bypass passage is connected to the heat dissipation mechanism through the liquid inlet passage, the first valve is arranged at the connection between the bypass passage and the liquid inlet passage, the second valve 120 is arranged at the connection between the liquid inlet passage and the bypass passage, and the first valve and the second valve 120 are integrally formed. When the bypass passage is connected to the heat dissipation mechanism through the liquid outlet passage, the first valve is arranged at the connection between the bypass passage and the liquid outlet passage, the third valve is arranged at the connection between the liquid outlet passage and the bypass passage, and the first valve and the third valve are integrally formed.

[0063] It is understandable that, in other embodiments, the specific locations of the first valve, the second valve 120 and the third valve are not limited, and the first valve, the second valve 120 and the third valve are all separately arranged.

[0064] Continue reading Figure 1 In one embodiment, the wall-mounted boiler further includes a first power mechanism 170, which can provide flow force for the liquid to flow between the two heat dissipation mechanisms connected by the bypass passage. Specifically, each heat dissipation mechanism corresponds to a first power mechanism 170, and when the hot water in any heat dissipation mechanism flows into the other heat dissipation mechanism, the corresponding first power mechanism 170 provides the flow force for the hot water in the one heat dissipation mechanism to flow to the other heat dissipation mechanism.

[0065] The following takes a wall-mounted boiler including three heat dissipation mechanisms as an example to explain the scheme of the present invention in more detail. The three heat dissipation mechanisms are respectively arranged in the living room, bedroom and kitchen. Each heat dissipation mechanism is provided with a first temperature sensor 180 to detect the temperature on the corresponding heat dissipation mechanism, so as to determine whether the temperature of the indoor space reaches a preset value. When the temperature of the indoor space reaches the preset value, the controller controls the burner 30 to extinguish. When the temperature of the indoor space is lower than the preset value, the controller controls the burner 30 to ignite again.

[0066] The heat dissipation mechanisms corresponding to the living room, bedroom and kitchen are defined as the first heat dissipation mechanism 21, the second heat dissipation mechanism 22 and the third heat dissipation mechanism 23. The liquid inlet passage and the liquid outlet passage corresponding to the first heat dissipation mechanism 21 are defined as the first liquid inlet passage 81 and the first liquid outlet passage 91, respectively. The liquid inlet passage and the liquid outlet passage corresponding to the second heat dissipation mechanism 22 are defined as the second liquid inlet passage 82 and the second liquid outlet passage 92, respectively. The liquid inlet passage and the liquid outlet passage corresponding to the third heat dissipation mechanism 23 are defined as the third liquid inlet passage 83 and the third liquid outlet passage 93, respectively.

[0067] The two ends of the first bypass passage 161 connecting the first heat dissipation mechanism 21 and the second heat dissipation mechanism 22 are respectively connected to the first liquid outlet passage 91 and the second liquid outlet passage 92, the two ends of the second bypass passage 162 connecting the second heat dissipation mechanism 22 and the third heat dissipation mechanism 23 are respectively connected to the second liquid outlet passage 92 and the third liquid outlet passage 93, the two ends of the third bypass passage 163 connecting the first heat dissipation mechanism 21 and the third heat dissipation mechanism 23 are respectively connected to the first liquid outlet passage 91 and the third liquid outlet passage 93, and the first bypass passage 161, the third bypass passage 163 and the third bypass passage 163 have a common part. The figure includes a first three-way valve 141, a second three-way valve 142 and a four-way valve 143, and the three-way valve and the four-way valve 143 can be regarded as a structure formed by the first valve and the third valve being integrally formed. The first power mechanism 170 includes three, and the three power mechanisms are respectively arranged on the liquid outlet passages corresponding to the corresponding heat dissipation mechanisms.

[0068] When the user moves from the living room to the bedroom to rest, there is hot water in the first heat dissipation mechanism 21 corresponding to the living room. The user can select the bedroom environment on the wall-mounted boiler and feedback the signal to the controller. The controller controls the second valve 120 corresponding to the first liquid inlet passage 81 and the third liquid inlet passage 83 to close, and the second valve 120 corresponding to the second liquid inlet passage 82 to open or close, and the first power mechanism 170 corresponding to the first heat dissipation mechanism 21 is actuated. The first three-way valve 141 installed on the first liquid inlet passage 81 is switched to connect the first liquid inlet passage 81 with the first bypass passage 161, and the liquid flow path between the first liquid inlet passage 81 and the first heat exchanger 10 is cut off. The four-way valve 143 is switched to connect the first bypass passage 161 with the second liquid inlet passage 82, and the hot water in the first heat dissipation mechanism 21 flows from the first bypass passage 161 to the second heat dissipation mechanism 22 to preheat the bedroom and reduce the waiting time.

[0069] In one embodiment, the wall-mounted boiler further includes a second heat exchanger 190, a cold water passage 200, a domestic water passage 210, a third passage 240 and a fourth passage 250. One end of the third passage 240 is connected to the first passage 220, and the other end is connected to the third inlet of the second heat exchanger 190. One end of the fourth passage 250 is connected to the third outlet of the second heat exchanger 190, and the other end is connected to the second passage 230. The cold water passage 200 is connected to the second inlet of the second heat exchanger 190, and the domestic water passage 210 is connected to the second outlet of the second heat exchanger 190. External cold water enters the second heat exchanger 190 through the cold water passage 200 and exchanges heat with hot water flowing from the third passage 240 to the second heat exchanger 190, forming domestic water for users, and flows to users from the domestic water passage 210. The water after heat exchange in the second heat exchanger 190 flows to the first heat exchanger 10 through the fourth passage 250 for circulation.

[0070] The wall-mounted boiler also includes a second temperature sensor 260, which is disposed in the domestic water passage 210 and is used to detect the temperature of water in the domestic water passage 210 to meet user needs.

[0071] The wall-mounted boiler also includes a fifth passage 270, which is connected between the first passage 220 and the second passage 230 to guide the hot water in the first passage 220 to the second passage 230, so as to increase the temperature of the water in the second passage 230, prevent the water from condensing in the second passage 230 under cold conditions, and prevent the second passage 230 from bursting under cold conditions, thereby protecting the second passage 230. Specifically, the wall-mounted boiler also includes an expansion tank 280, which is connected to the second passage 230 and is used to relieve the water pressure in the entire wall-mounted boiler system to prevent excessive pressure from causing damage to the components of the wall-mounted boiler.

[0072] See also Figure 2 Another embodiment of the present invention further provides a control method for a heat exchange device 100, comprising the steps of:

[0073] S110: Acquire the state of the initial heat dissipation mechanism;

[0074] S120: when the state of the initial heat dissipation mechanism is switched from the liquid-intake state to the liquid-intake-stop state;

[0075] S130: Control the bypass passage to be turned on, so that the liquid in the initial heat dissipation mechanism flows to the target heat dissipation mechanism through the bypass passage.

[0076] Take the bypass passage connecting the heat dissipation mechanism located in the living room and the heat dissipation mechanism located in the bedroom as an example. When the user wants to move from the living room to the bedroom, the user will select the bedroom environment. Then, the initial heat dissipation mechanism in the living room will switch from the liquid inlet state to the liquid inlet termination state. At this time, the bypass passage between the two heat dissipation mechanisms is controlled to be connected, and the liquid in the initial heat dissipation mechanism flows to the target heat dissipation mechanism (the heat dissipation mechanism located in the bedroom) through the bypass passage. The same is true for the heat dissipation mechanisms located in other indoor spaces.

[0077] According to the control method of the heat exchange device 100 provided in the embodiment of the present invention, when a user wants to move from one indoor space corresponding to two heat dissipation mechanisms connected by a bypass passage to another indoor space, the hot water in the heat dissipation mechanism corresponding to the indoor space to be moved out can be transported to the heat dissipation mechanism corresponding to the indoor space to be moved into through the bypass passage, so as to heat the indoor space to be moved into, thereby reducing the preheating waiting time. At the same time, the bypass passage transports the hot water in the heat dissipation mechanism corresponding to the indoor space to be moved out to the heat dissipation mechanism corresponding to the indoor space to be moved into, thereby reducing the waste of resources.

[0078] In one embodiment, when the hot water in the initial heat dissipation mechanism is guided to the target heat dissipation mechanism through the bypass passage, the second valve 120 on the liquid inlet passage corresponding to the target heat dissipation mechanism is in a closed state, so that the hot water in the initial heat dissipation mechanism flows to the target heat dissipation mechanism for preheating, and then the second valve 120 on the liquid inlet passage corresponding to the target heat dissipation mechanism is opened again. It should be understood that in another embodiment, when the hot water in the initial heat dissipation mechanism is guided to the target heat dissipation mechanism through the bypass passage, the second valve 120 on the liquid inlet passage corresponding to the target heat dissipation mechanism is in an open state, and at this time, the water in the initial heat dissipation mechanism and the water flowing out of the first heat exchanger 10 will enter the target heat dissipation mechanism for preheating at the same time.

[0079] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A heat exchange device, characterized in that: The heat exchange equipment comprises: A first heat exchanger (10) having a first inlet and a first outlet which are interconnected; At least two heat dissipation mechanisms, each of which is disposed in each indoor space and has a second inlet and a second outlet that are connected to each other; the second inlet of each of the heat dissipation mechanisms is controllably connected to the first outlet of the first heat exchanger (10), and the second outlet of each of the heat dissipation mechanisms is controllably connected to the first inlet of the first heat exchanger (10); Wherein, the heat exchange device further comprises a bypass passage, and the bypass passage is controllably connected to at least two of the heat dissipation mechanisms.

2. The heat exchange device according to claim 1, characterized in that: The bypass passage is controllably connected to any two of the heat dissipation mechanisms.

3. The heat exchange device according to claim 1 or 2, characterized in that: A bypass passage is provided between every two of the heat dissipation mechanisms, and all the bypass passages are independent of each other.

4. The heat exchange device according to claim 1, characterized in that: The heat exchange device also includes a first valve, which is installed on the bypass passage and is used to control the on-off between the two heat dissipation mechanisms.

5. The heat exchange device according to claim 1, characterized in that: The heat exchange device further comprises a first power mechanism (170), which is capable of providing a flow force for liquid to flow between the two heat dissipation mechanisms connected through the bypass passage.

6. The heat exchange device according to claim 5, characterized in that: The bypass passage is controllably connected to any two of the heat dissipation mechanisms; The number of the first power mechanisms (170) is equal to the number of the heat dissipation mechanisms, and each heat dissipation mechanism is provided with a corresponding first power mechanism (170).

7. The heat exchange device according to claim 1, characterized in that: The heat exchange device also includes: Liquid inlet passages are equal in number to the heat dissipation mechanisms and are arranged in one-to-one correspondence, and each of the liquid inlet passages is controllably connected between the first outlet of the first heat exchanger (10) and the second inlet of each of the heat dissipation mechanisms; The number of liquid outlet passages is equal to that of the heat dissipation mechanisms and they are arranged in one-to-one correspondence, and each of the liquid outlet passages is controlled to be connected between the second outlet of each of the heat dissipation mechanisms and the first inlet of the first heat exchanger (10).

8. The heat exchange device according to claim 7, characterized in that: The bypass passage is communicated with the heat dissipation mechanism through the liquid inlet passage; or the bypass passage is communicated with the heat dissipation mechanism through the liquid outlet passage.

9. The heat exchange device according to claim 7, characterized in that: The heat exchange device further comprises second valves (120) whose number is equal to the liquid inlet passages, and each second valve (120) is mounted on each of the liquid inlet passages to control the on-off of the liquid inlet passages.

10. The heat exchange device according to claim 7, characterized in that: The heat exchange device also includes third valves whose number is equal to the liquid outlet passages, and each of the third valves is installed on each of the liquid outlet passages to control the opening and closing of the liquid outlet passages.

11. The heat exchange device according to claim 1, characterized in that: The heat exchange equipment is a wall-mounted boiler.

12. A control method for a heat exchange device, applied to the heat exchange device according to any one of claims 1 to 11, characterized in that: Includes steps: Get the status of the initial heat dissipation mechanism; When the state of the initial heat dissipation mechanism is switched from the liquid-intake state to the liquid-intake termination state; The bypass passage is controlled to be open, and the liquid in the initial heat dissipation mechanism flows to the target heat dissipation mechanism through the bypass passage.

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