Control method and device for fresh air heat pump system, fresh air heat pump system and computer readable storage medium

Abstract

The invention relates to the technical field of heat pump systems, and discloses a control method for a fresh air heat pump system.The system comprises a floor heating heat supply device installed at the indoor bottom; the fresh air heat exchange device is mounted at the indoor top; the curtain wall is mounted on the indoor side wall and internally provided with a heat exchange cavity; the first air valve is arranged at a communication port of the heat exchange cavity and the outdoor space; the second air valve is arranged at a communication port of the heat exchange cavity and the fresh air heat exchange device; the third air valve is arranged at a communication port of the heat exchange cavity and the indoor bottom space; the method comprises the steps that the operation mode of the fresh air heat pump system is obtained; and according to the operation mode of the fresh air heat pump system, the opening and closing states of the first air valve, the second air valve and the third air valve are controlled. Cold and heat of indoor exhaust air can be recycled, so that reasonable adjustment of the fresh air temperature is achieved, and the energy-saving effect of the fresh air heat pump system is improved. The invention further discloses a control device for the fresh air heat pump system, the fresh air heat pump system and a computer readable storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of heat pump systems, for example, to a control method and device for a fresh air heat pump system, a fresh air heat pump system, and a computer-readable storage medium. Background Art

[0002] At present, in daily life, air conditioning systems can meet users' basic thermal comfort requirements. As people pay more and more attention to their own comfort experience, floor heating systems with relatively higher comfort are gradually favored by users. Based on this, the relevant technology proposes a fresh air heat pump heating system, including: an outdoor unit, which is equipped with an outdoor heat exchanger, a compressor and a four-way valve; a floor heating capillary end, which is arranged underground indoors and connected to the outdoor unit through a four-way valve, and the floor heating capillary end is used to supply heat to the room; a fresh air heat pump end, which is arranged on the indoor roof, connected to the outdoor unit through a four-way valve, and connected in parallel with the floor heating capillary end, and the fresh air heat pump end is used to introduce fresh air into the room and adjust the temperature of the fresh air at the same time; wherein, by switching the connection mode of the four-way valve, the floor heating capillary end and the fresh air heat pump end enter the heating state; or, by switching the connection mode of the four-way valve, the refrigerant flow direction in the fresh air heat pump end is changed to make the fresh air heat pump end enter the cooling mode, and the floor heating capillary end is closed.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] Related technologies meet users' fresh air and cooling needs through the fresh air heat pump end, and meet users' heating needs through the floor heating capillary end. However, when it introduces outdoor fresh air, the temperature difference between indoor and outdoor is usually large, so it is necessary to use a fresh air heat exchanger to compensate for the temperature of the fresh air entering from the outside. At this time, the refrigerant flow at the floor heating capillary end is relatively reduced, and its working energy efficiency gradually decreases, resulting in an increase in the actual energy consumption of the entire system.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a control method, device, and fresh air heat pump system for a fresh air heat pump system, and a computer-readable storage medium, which can achieve reasonable adjustment of the fresh air temperature, thereby ensuring the working energy efficiency of the floor heating device, thereby improving the energy-saving effect of the fresh air heat pump system.

[0008] In some embodiments, the fresh air heat pump system includes: a floor heating device, installed at the bottom of the room; a fresh air heat exchange device, installed at the top of the room; a curtain wall, installed on the indoor side wall, with a heat exchange cavity inside; a first air valve, arranged at the connecting port between the heat exchange cavity and the outdoor space; a second air valve, arranged at the connecting port between the heat exchange cavity and the fresh air heat exchange device; a third air valve, arranged at the connecting port between the heat exchange cavity and the indoor bottom space; the control method includes: obtaining the operating mode of the fresh air heat pump system; and controlling the opening and closing states of the first air valve, the second air valve and the third air valve according to the operating mode of the fresh air heat pump system.

[0009] In some embodiments, the control device includes: a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned control method for the fresh air heat pump system when running the program instructions.

[0010] In some embodiments, the fresh air heat pump system includes: a floor heating device, installed at the bottom of the room; a fresh air heat exchange device, installed at the top of the room; a curtain wall, installed on the indoor side wall, with a heat exchange cavity inside; a first air valve, arranged at the connecting port between the heat exchange cavity and the outdoor space; a second air valve, arranged at the connecting port between the heat exchange cavity and the fresh air heat exchange device; a third air valve, arranged at the connecting port between the heat exchange cavity and the indoor bottom space; the above-mentioned control device for the fresh air heat pump system is electrically connected to the first air valve, the second air valve and the third air valve, respectively.

[0011] In some embodiments, the computer-readable storage medium stores program instructions, and when the program instructions are executed, the computer executes the above-mentioned control method for the fresh air heat pump system.

[0012] The control method, device, and fresh air heat pump system provided by the embodiments of the present disclosure can achieve the following technical effects:

[0013] In the disclosed embodiment, the fresh air heat pump system includes a floor heating device installed at the bottom of the room and a fresh air heat exchange device installed at the top of the room, which can be used to meet the user's heating and cooling needs and fresh air needs. At the same time, the fresh air heat pump system also includes a curtain wall installed on the indoor side wall, which has a heat exchange cavity inside, and is connected to the outdoor space, the indoor top space and the indoor bottom space through a plurality of air valves. Thus, the disclosed embodiment can be combined with the actual operation mode of the fresh air heat pump system to control the opening and closing states corresponding to the first air valve, the second air valve and the third air valve, so as to reasonably adjust the air flow path flowing through the heat exchange cavity. On the one hand, the air temperature of the indoor side wall can be properly balanced by the curtain wall, which is conducive to improving the uniformity of the indoor temperature and improving the user's comfort experience. On the other hand, the indoor exhaust air and the outdoor fresh air can be fully heat exchanged inside the fresh air heat exchange device, so that the cold and heat of the indoor exhaust air can be recovered to achieve reasonable adjustment of the fresh air temperature, thereby ensuring the working energy efficiency of the floor heating device, so as to improve the energy saving effect of the fresh air heat pump system.

[0014] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0016] Figure 1 is a structural schematic diagram of a fresh air heat pump system provided by an embodiment of the present disclosure;

[0017] Figure 2 is a structural schematic diagram of a fresh air heat exchange device provided in an embodiment of the present disclosure;

[0018] Figure 3 It is a structural schematic diagram of a floor heating device provided by an embodiment of the present disclosure;

[0019] Figure 4 is a schematic diagram of a control method for a fresh air heat pump system provided by an embodiment of the present disclosure;

[0020] Figure 5 is a schematic diagram of another control method for a fresh air heat pump system provided by an embodiment of the present disclosure;

[0021] Figure 6 is a schematic diagram of another control method for a fresh air heat pump system provided by an embodiment of the present disclosure;

[0022] Figure 7is a schematic diagram of another control method for a fresh air heat pump system provided by an embodiment of the present disclosure;

[0023] Figure 8 It is a schematic diagram of a control device for a fresh air heat pump system provided in an embodiment of the present disclosure.

[0024] Reference numerals:

[0025] 100: floor heating heating device; 101: compressor; 102: four-way valve; 103: floor heating coil; 104: throttling device; 105: outdoor heat exchanger; 200: fresh air heat exchange device; 201: return air valve; 202: mixing air valve; 203: supply air valve; 204: fresh air valve; 205: exhaust air valve; 206: mixing air box; 300: curtain wall; 301: first air valve; 302: second air valve; 303: third air valve; 400: light energy collection device; 500: control device for fresh air heat pump system; 501: processor; 502: memory; 503: communication interface; 504: bus. DETAILED DESCRIPTION

[0026] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0027] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0028] Unless otherwise stated, the term "plurality" means two or more.

[0029] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0030] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0031] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0032] Combination Figure 1 As shown, the embodiment of the present disclosure provides a fresh air heat pump system, including: a floor heating heating device 100, a fresh air heat exchange device 200, a curtain wall 300, a first air valve 301, a second air valve 302 and a third air valve 303. Among them, the floor heating heating device 100 is installed at the bottom of the room. The fresh air heat exchange device 200 is installed at the top of the room. The curtain wall 300 is installed on the indoor side wall and has a heat exchange cavity inside. The first air valve 301 is arranged at the connecting port between the heat exchange cavity and the outdoor space. The second air valve 302 is arranged at the connecting port between the heat exchange cavity and the fresh air heat exchange device 200. The third air valve 303 is arranged at the connecting port between the heat exchange cavity and the indoor bottom space.

[0033] The fresh air heat pump system provided by the embodiment of the present disclosure includes a floor heating device 100 installed at the bottom of the room and a fresh air heat exchange device 200 installed at the top of the room, which can be used to meet the user's heating and cooling needs and fresh air needs. At the same time, the fresh air heat pump system also includes a curtain wall 300 installed on the indoor side wall, which has a heat exchange cavity inside, and is connected to the outdoor space, the indoor top space and the indoor bottom space through multiple air valves. By combining and controlling the appropriate opening and closing states of the first air valve 301, the second air valve 302 and the third air valve 303, the embodiment of the present disclosure can reasonably adjust the air flow path flowing through the heat exchange cavity. On the one hand, the air temperature of the indoor side wall can be properly balanced through the curtain wall 300, which is conducive to improving the uniformity of the indoor temperature and improving the user's comfort experience. On the other hand, the indoor exhaust air and the outdoor fresh air can be fully heat exchanged inside the fresh air heat exchange device 200, so that the cold and heat of the indoor exhaust air can be recovered to achieve reasonable adjustment of the fresh air temperature, thereby ensuring the working energy efficiency of the floor heating device 100 to improve the energy saving effect of the fresh air heat pump system.

[0034] Optionally, combined Figure 2 As shown, a fresh air heat exchange device 200 provided in an embodiment of the present disclosure includes: a return air valve 201, an air mixing valve 202, an air supply valve 203, a fresh air valve 204 and an exhaust air valve 205. Among them, the return air valve 201 is arranged in the return air duct. The air mixing valve 202 is arranged in the air mixing duct. The air supply valve 203 is arranged in the air supply duct. The fresh air valve 204 is arranged in the fresh air duct. The exhaust air valve 205 is arranged in the exhaust air duct.

[0035] In this way, the embodiment of the present disclosure can construct multiple air ducts inside the fresh air heat exchange device 200, which are respectively used to connect the outdoor space with the indoor space. By combining and controlling the opening and closing states of the return air valve 201, the mixing air valve 202, the supply air valve 203, the fresh air valve 204 and the exhaust air valve 205, the embodiment of the present disclosure can reasonably plan the airflow paths of the indoor exhaust air and the outdoor fresh air, so that they can fully exchange heat inside the fresh air heat exchange device 200, thereby recovering the cold and heat of the indoor exhaust air to achieve reasonable adjustment of the fresh air temperature, which is conducive to improving the energy-saving effect of the fresh air heat pump system.

[0036] Optionally, the fresh air heat exchange device 200 further includes a mixing box 206. The mixing box 206 is respectively connected to the return air duct, the mixing air duct, the supply air duct, the fresh air duct and the exhaust air duct. In this way, the indoor exhaust air and the outdoor fresh air can be fully heat exchanged in the mixing box 206, so that the cold and heat of the indoor exhaust air can be recovered to achieve reasonable adjustment of the fresh air temperature, which is conducive to improving the energy-saving effect of the fresh air heat pump system.

[0037] Furthermore, the air mixing box 206 is also connected to the heat exchange cavity of the curtain wall 300 through the second air valve 302. In this way, the embodiment of the present disclosure can reasonably control the opening and closing state of the second air valve 302 to adjust the air flow path flowing through the heat exchange cavity, and by making it flow into the air mixing box 206 of the fresh air heat exchange device 200, it can achieve heat exchange with other air flow paths in the air mixing box 206, thereby achieving reasonable adjustment of the fresh air temperature, which is conducive to improving the energy-saving effect of the fresh air heat pump system.

[0038] Optionally, combined Figure 3 As shown, a floor heating device 100 provided by an embodiment of the present disclosure includes: a compressor 101, a four-way valve 102, a floor heating coil 103, a throttling device 104 and an outdoor heat exchanger 105. The compressor 101, the four-way valve 102, the floor heating coil 103, the throttling device 104 and the outdoor heat exchanger 105 are sequentially connected through a refrigerant pipeline to form a refrigerant circulation loop.

[0039] In this way, the disclosed embodiment can construct a refrigerant circulation loop and switch the specific flow direction of the refrigerant through the four-way valve 102, so that the operation mode of the fresh air heat pump system can be reasonably adjusted to meet the actual cooling and heating needs of the user.

[0040] Optionally, the fresh air heat pump system also includes a fan coil. The fan coil is installed in the air supply duct and is arranged in parallel with the floor heating coil 103. In this way, a refrigerant branch corresponding to the fan coil can be added to the fresh air heat pump system, and it can be connected in parallel with the refrigerant branch where the floor heating coil 103 is located, so that a floor heating and air conditioning dual supply system can be formed. Therefore, when the adjusted fresh air temperature is not suitable, the embodiment of the present disclosure can use the fan coil heat exchange to compensate for the remaining temperature, so that the fresh air in the fresh air heat exchange device 200 reaches a comfortable temperature before being delivered to the room, which is conducive to ensuring the user's comfortable experience.

[0041] Optionally, the fresh air heat pump system further includes a photovoltaic energy storage device 400. The photovoltaic energy storage device 400 is connected to the curtain wall 300. In this way, the photovoltaic energy storage device 400 can continuously collect solar energy and convert it into heat energy required for the operation of the curtain wall 300 under appropriate working conditions, thereby reducing the energy consumption required for the operation of the fresh air heat pump system, which is conducive to improving the energy-saving effect of the fresh air heat pump system.

[0042] Optionally, the photovoltaic energy storage device 400 includes a photovoltaic panel and an electric heating device. In this way, the solar energy can be converted into electrical energy and stored by the photovoltaic panel. When entering a suitable working condition, the stored electrical energy can be converted into thermal energy by the electric heating device for use by the curtain wall 300 as needed. As a result, the embodiment of the present disclosure can reduce the energy consumption required for the operation of the fresh air heat pump system, which is conducive to improving the energy-saving effect of the fresh air heat pump system.

[0043] Optionally, the fresh air heat pump system further includes a control device 500 for the fresh air heat pump system. The control device 500 for the fresh air heat pump system is electrically connected to the first air valve 301, the second air valve 302, and the third air valve 303, respectively. In this way, the embodiment of the present disclosure can execute a corresponding control method through the control device 500 to improve the user's comfort experience and improve the energy saving effect of the fresh air heat pump system.

[0044] Based on the above fresh air heat pump system, combined with Figure 4 As shown, the embodiment of the present disclosure provides a control method for a fresh air heat pump system, comprising:

[0045] S101, the control device obtains the operation mode of the fresh air heat pump system.

[0046] S102, the control device controls the opening and closing states of the first air valve, the second air valve and the third air valve according to the operation mode of the fresh air heat pump system.

[0047] The control method for the fresh air heat pump system provided by the embodiment of the present disclosure can be combined with the actual operation mode of the fresh air heat pump system to control the opening and closing states of the first air valve, the second air valve and the third air valve, so as to reasonably adjust the airflow path flowing through the heat exchange cavity. On the one hand, the air temperature of the indoor side wall can be properly balanced through the curtain wall, which is conducive to improving the uniformity of the indoor temperature and enhancing the user's comfort experience. On the other hand, the indoor exhaust air and the outdoor fresh air can be fully heat exchanged inside the fresh air heat exchange device, so that the cold and heat of the indoor exhaust air can be recovered to achieve reasonable adjustment of the fresh air temperature, thereby ensuring the working energy efficiency of the floor heating device to improve the energy saving effect of the fresh air heat pump system.

[0048] Optionally, the control device controls the opening and closing states of the first air valve, the second air valve and the third air valve according to the operating mode of the fresh air heat pump system, including: when the fresh air heat pump system operates in heating mode, the control device controls the first air valve and the second air valve to open; or, when the fresh air heat pump system operates in cooling mode, the control device controls the second air valve and the third air valve to open.

[0049] In this way, when the fresh air heat pump system operates in the heating mode, the outdoor fresh air temperature is relatively low, and the embodiment of the present disclosure can control the first air valve and the second air valve to open. The outdoor fresh air can enter the heat exchange cavity through the first air valve, and then the curtain wall is used to preheat the outdoor fresh air introduced at this time, thereby gradually increasing the temperature of the fresh air flowing through the heat exchange cavity. At this time, the curtain wall can also appropriately adjust the air temperature near the indoor side wall, so as to improve the uniformity of the indoor temperature. Then, the embodiment of the present disclosure can send the preheated fresh air into the fresh air heat exchange device through the second air valve, so that it exchanges heat with the indoor return air, thereby realizing secondary preheating of the fresh air, and sending it out after the fresh air temperature reaches the preset comfortable temperature, so as to meet the user's heating and cooling needs and fresh air needs at the same time. Therefore, the embodiment of the present disclosure can take into account the user's comfort experience and the energy-saving effect of the fresh air heat pump system under winter heating conditions.

[0050] When the fresh air heat pump system operates in cooling mode, the indoor return air temperature is relatively low, and the embodiment of the present disclosure can control the second air valve and the third air valve to open. The indoor return air can enter the heat exchange cavity through the third air valve, and then the coldness of the indoor return air is used to cool the curtain wall. At this time, the curtain wall can appropriately adjust the air temperature near the indoor side wall, thereby improving the uniformity of the indoor temperature. Then, the embodiment of the present disclosure can send the indoor return air into the fresh air heat exchange device through the second air valve, so that it exchanges heat with the outdoor fresh air, thereby realizing fresh air pre-cooling, and send it out after the fresh air temperature reaches the preset comfortable temperature, so as to meet the user's heating and cooling needs and fresh air needs at the same time. The embodiment of the present disclosure can take into account the user's comfort experience and the energy-saving effect of the fresh air heat pump system under summer cooling conditions.

[0051] Based on the above fresh air heat pump system, combined with Figure 5 As shown, the embodiment of the present disclosure provides another control method for a fresh air heat pump system, comprising:

[0052] S201, the control device obtains the operation mode of the fresh air heat pump system.

[0053] S202: When the fresh air heat pump system operates in a heating mode, the control device controls the first air valve and the second air valve to open.

[0054] S203, the control device obtains the floor temperature at the bottom of the room.

[0055] S204, the control device controls the opening and closing state of the third air valve according to the floor temperature at the bottom of the room. Or,

[0056] S205, when the fresh air heat pump system operates in cooling mode, the control device controls the second air valve and the third air valve to open.

[0057] The control method for the fresh air heat pump system provided by the embodiment of the present disclosure can be combined with the actual operation mode of the fresh air heat pump system to control the opening and closing states of the first air valve, the second air valve and the third air valve, so that the airflow path flowing through the heat exchange cavity can be reasonably adjusted to take into account the user's comfort experience and the energy-saving effect of the fresh air heat pump system under winter heating conditions and summer cooling conditions. In addition, under winter heating conditions, the embodiment of the present disclosure also monitors the floor temperature at the bottom of the room in real time to determine whether the temperature near the floor is too high. Then, the embodiment of the present disclosure can appropriately adjust the opening and closing state of the third air valve under the corresponding conditions to reasonably reduce the floor temperature, thereby avoiding high temperature of the floor and scalding the feet and damage to the floor, which is conducive to ensuring the actual user experience.

[0058] Optionally, the control device controls the opening and closing state of the third air valve according to the floor temperature at the bottom of the room, including: when the floor temperature at the bottom of the room is less than or equal to a preset temperature, the control device controls the third air valve to close; or, when the floor temperature at the bottom of the room is greater than a preset temperature, the control device controls the third air valve to open.

[0059] In this way, when the floor temperature at the bottom of the room is less than or equal to the preset temperature, it indicates that the actual temperature of the bottom space of the room is relatively safe, and the radiation heat exchange effect of the floor heating device is good. At this time, the possibility of high temperature scalding feet and floor damage is small. Therefore, the embodiment of the present disclosure can maintain the closed state of the third air valve to send all the outdoor fresh air introduced by the first air valve into the fresh air heat exchange device through the second air valve, thereby realizing multiple preheating of the fresh air. And after the fresh air temperature reaches the preset comfortable temperature, it is sent out to ensure that the fresh air can be directly sent to the vicinity of the user's head, which is conducive to better meeting the user's cooling and heating needs and fresh air needs.

[0060] When the floor temperature at the bottom of the room is greater than the preset temperature, it indicates that the radiation heat exchange effect of the floor heating device is poor, and the heat generated accumulates in the bottom space of the room, resulting in a relatively high actual temperature there. At this time, the possibility of high temperature scalding feet and floor damage is high. Therefore, the embodiment of the present disclosure can control the third air valve to open appropriately, so that after the curtain wall preheats the outdoor fresh air introduced by the first air valve, part of the preheated fresh air is sent to the top of the floor heating device through the third air valve, so that a turbulent heat exchange area can be formed near the floor, which is more conducive to the heat dissipation of the floor, so that the area near the floor gradually returns to a safe temperature, so as to avoid high temperature scalding feet and damage to the floor, which is conducive to ensuring the actual user experience.

[0061] Optionally, the control device controls the third air valve to open, including: the control device determines a target opening of the third air valve according to a difference between a floor temperature at the bottom of the room and a preset temperature; and the control device controls the third air valve to open according to the target opening.

[0062] In this way, the embodiment of the disclosure can analyze the heat accumulation in the bottom space of the room by combining the difference between the floor temperature at the bottom of the room and the preset temperature, and then judge the actual probability of the floor being hot and damaged at this time. Then the embodiment of the disclosure can control the target opening degree when the third air valve is opened accordingly, so as to reasonably adjust the fresh air volume sent to the top of the floor heating device, so that the floor can dissipate heat better, which is conducive to faster recovery of the area near the floor to a safe temperature, and improves the safety of the fresh air heat pump system.

[0063] Optionally, the target opening degree of the third air valve is positively correlated with the difference between the floor temperature and the preset temperature.

[0064] In this way, when the difference between the floor temperature and the preset temperature is greater, it indicates that the radiation heat exchange effect of the floor heating device is worse, and the heat accumulated in the bottom space of the room is more. At this time, the actual probability of the floor being hot and damaged is relatively higher. Therefore, the embodiment of the present disclosure can set a relatively larger target opening for the third air valve to increase the amount of fresh air delivered to the top of the floor heating device, which helps to form a stable turbulent heat exchange area near the floor to better assist the floor in heat dissipation, thereby facilitating the faster recovery of the area near the floor to a safe temperature, further improving the safety of the fresh air heat pump system.

[0065] Optionally, the preset temperature can be set in combination with the operating parameters of the floor heating device. Preferably, the preset temperature can be set to 30°C to determine whether the radiation heat exchange effect of the floor heating device is poor. The preset temperature can also be adjusted according to the actual needs of the user, and can also be set to any other reasonable value such as 25°C or 35°C.

[0066] Optionally, when the fresh air heat pump system operates in cooling mode, after the control device controls the second air valve and the third air valve to open, the control device further includes: the control device controls the first air valve to close.

[0067] In this way, under summer cooling conditions, the embodiment of the present disclosure can directly control the first air valve to be normally closed, thereby preventing high-temperature outdoor fresh air from entering the heat exchange cavity, affecting the cooling effect of the curtain wall and the fresh air pre-cooling effect in the fresh air heat exchange device, which is conducive to better meeting the user's cooling and heating needs and fresh air needs.

[0068] Based on the above fresh air heat pump system, combined with Figure 6 As shown, the embodiment of the present disclosure provides another control method for a fresh air heat pump system, comprising:

[0069] S301, the control device obtains the operation mode of the fresh air heat pump system.

[0070] S302, the control device controls the opening and closing states of the first air valve, the second air valve and the third air valve according to the operation mode of the fresh air heat pump system.

[0071] S303, the control device controls the opening and closing states of the return air valve, the mixing air valve, the supply air valve, the fresh air valve and the exhaust air valve according to the operation mode of the fresh air heat pump system.

[0072] The control method for the fresh air heat pump system provided by the embodiment of the present disclosure can be combined with the actual operation mode of the fresh air heat pump system to control the opening and closing states corresponding to the first air valve, the second air valve and the third air valve, so as to reasonably adjust the airflow path flowing through the heat exchange cavity. In this way, the air temperature of the indoor side wall can be properly balanced through the curtain wall, which is conducive to improving the uniformity of the indoor temperature and enhancing the user's comfort experience. In addition, the embodiment of the present disclosure can be combined with the actual operation mode of the fresh air heat pump system to control the opening and closing states corresponding to the return air valve, the mixing air valve, the air supply valve, the fresh air valve and the exhaust valve, so that the airflow path of the indoor exhaust and the outdoor fresh air can be reasonably planned. In this way, the indoor exhaust air and the outdoor fresh air are fully heat exchanged inside the fresh air heat exchange device, so that the cold and heat of the indoor exhaust air can be recovered to achieve reasonable adjustment of the fresh air temperature, thereby ensuring the working energy efficiency of the floor heating heating device to improve the energy saving effect of the fresh air heat pump system.

[0073] Optionally, the control device controls the opening and closing states of the return air valve, mixing air valve, supply air valve, fresh air valve and exhaust valve according to the operating mode of the fresh air heat pump system, including: when the fresh air heat pump system operates in heating mode, the control device controls the return air valve, mixing air valve, supply air valve and exhaust valve to open; or, when the fresh air heat pump system operates in cooling mode, the control device controls the mixing air valve, supply air valve, fresh air valve and exhaust valve to open.

[0074] In this way, when the fresh air heat pump system operates in the heating mode, the outdoor fresh air temperature is relatively low, and the embodiment of the present disclosure can control the return air valve, the mixing air valve, the supply air valve and the exhaust air valve to open. Then the first air valve and the second air valve are controlled to open in linkage, and the embodiment of the present disclosure can introduce outdoor fresh air through the heat exchange cavity, and use the curtain wall to preheat the outdoor fresh air flowing through, so that the temperature of the fresh air can be gradually increased. Then the embodiment of the present disclosure sends the preheated fresh air into the fresh air heat exchange device through the second air valve, so that it exchanges heat with the indoor return air sent in through the return air duct, thereby realizing secondary preheating of the fresh air. After the fresh air temperature reaches the preset comfortable temperature, the embodiment of the present disclosure sends it out through the supply air duct, which can meet the user's cooling and heating needs and fresh air needs at the same time, which is conducive to improving the user's comfort experience.

[0075] When the fresh air heat pump system operates in cooling mode, the indoor return air temperature is relatively low. The embodiment of the present disclosure can control the opening of the mixing air valve, the air supply valve, the fresh air valve and the exhaust valve. The second air valve and the third air valve are then controlled to open in linkage. The embodiment of the present disclosure can introduce indoor return air through the heat exchange cavity to cool the curtain wall. Then, the embodiment of the present disclosure sends this part of the indoor return air into the fresh air heat exchange device through the second air valve, so that it exchanges heat with the outdoor fresh air introduced through the fresh air duct, thereby realizing fresh air pre-cooling. After the fresh air temperature reaches the preset comfortable temperature, the embodiment of the present disclosure sends it out through the air supply duct, which can meet the user's cooling and heating needs and fresh air needs at the same time, which is conducive to improving the user's comfort experience.

[0076] Based on the above fresh air heat pump system, combined with Figure 7 As shown, the embodiment of the present disclosure provides another control method for a fresh air heat pump system, comprising:

[0077] S401, the control device obtains the operation mode of the fresh air heat pump system.

[0078] S402, the control device controls the opening and closing states of the first air valve, the second air valve and the third air valve according to the operation mode of the fresh air heat pump system.

[0079] S403, the control device controls the working state of the photovoltaic energy storage device according to the operating mode of the fresh air heat pump system.

[0080] The control method for the fresh air heat pump system provided by the embodiment of the present disclosure can be combined with the actual operation mode of the fresh air heat pump system to control the opening and closing states of the first air valve, the second air valve and the third air valve, so as to reasonably adjust the airflow path flowing through the heat exchange cavity. On the one hand, the air temperature of the indoor side wall can be properly balanced by the curtain wall, which is conducive to improving the uniformity of the indoor temperature and enhancing the user's comfort experience. On the other hand, the indoor exhaust air and the outdoor fresh air can be fully heat exchanged inside the fresh air heat exchange device, so that the cold and heat of the indoor exhaust air can be recovered to achieve reasonable adjustment of the fresh air temperature, thereby ensuring the working energy efficiency of the floor heating device, so as to improve the energy saving effect of the fresh air heat pump system. In addition, the embodiment of the present disclosure can use the photovoltaic energy storage device to continuously collect solar energy, and combine the actual operation mode of the fresh air heat pump system to reasonably control the working state of the photovoltaic energy storage device corresponding to the curtain wall, so as to convert the collected solar energy into the heat energy required for the curtain wall under appropriate working conditions, so as to reduce the energy consumption required for the operation of the fresh air heat pump system, which is conducive to further improving the energy saving effect of the fresh air heat pump system.

[0081] Optionally, the control device controls the working state of the photovoltaic energy storage device according to the operating mode of the fresh air heat pump system, including: when the fresh air heat pump system operates in a heating mode, the control device controls the photovoltaic energy storage device to enter a heating state to preheat the airflow in the heat exchange cavity; or, when the fresh air heat pump system operates in a cooling mode, the control device controls the photovoltaic energy storage device to exit the heating state to stop preheating the airflow in the heat exchange cavity.

[0082] In this way, when the fresh air heat pump system operates in the heating mode, the outdoor fresh air temperature is relatively low. The disclosed embodiment can control the photovoltaic energy storage device to enter the heating state to convert the collected solar energy into the heat energy required for the curtain wall to work, so that the airflow in the heat exchange cavity can be preheated, that is, the outdoor fresh air introduced through the first air valve is preheated, thereby gradually increasing the temperature of the fresh air flowing through the heat exchange cavity to better meet the user's cooling and heating needs and fresh air needs. In addition, the curtain wall can also use the converted heat energy to reasonably adjust the air temperature near the indoor side wall, thereby improving the uniformity of the indoor temperature and helping to enhance the user's comfort experience. At this time, the disclosed embodiment can use the photovoltaic energy storage device to effectively reduce the energy consumption required for the operation of the fresh air heat pump system, which is conducive to improving the energy-saving effect of the fresh air heat pump system.

[0083] When the fresh air heat pump system operates in cooling mode, the indoor return air temperature is relatively low. The disclosed embodiment can control the photovoltaic energy storage device to exit the heating state to stop preheating the airflow in the heat exchange cavity. This can prevent the photovoltaic energy storage device from converting the collected solar energy into heat energy for curtain wall operation, thereby preventing it from affecting the cooling effect of the curtain wall and the fresh air precooling effect of the fresh air heat exchange device, which is conducive to ensuring the user's comfortable experience.

[0084] Optionally, when the fresh air heat pump system operates in cooling mode, it also includes: the control device controls the photovoltaic energy storage device to enter a power supply state to supply power to the floor heating device.

[0085] In this way, when the fresh air heat pump system operates in cooling mode, the embodiment of the present disclosure can control the photovoltaic energy storage device to enter the power supply state to power the floor heating device, such as controlling the compressor to start and operate according to a preset operating frequency, thereby ensuring the working energy efficiency of the floor heating device and improving the energy-saving effect of the fresh air heat pump system.

[0086] Combination Figure 8 As shown, the embodiment of the present disclosure provides a control device 500 for a fresh air heat pump system, including a processor (processor) 501 and a memory (memory) 502. Optionally, the control device 500 may also include a communication interface (Communication Interface) 503 and a bus 504. Among them, the processor 501, the communication interface 503, and the memory 502 can communicate with each other through the bus 504. The communication interface 503 can be used for information transmission. The processor 501 can call the logic instructions in the memory 502 to execute the control method for the fresh air heat pump system of the above embodiment.

[0087] In addition, the logic instructions in the memory 502 described above can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0088] The memory 502 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 501 executes functional applications and data processing by running the program instructions / modules stored in the memory 502, that is, implements the control method for the fresh air heat pump system in the above embodiment.

[0089] The memory 502 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 502 may include a high-speed random access memory and may also include a non-volatile memory.

[0090] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned control method for a fresh air heat pump system.

[0091] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes.

[0092] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0093] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0094] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0095] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for a fresh air heat pump system, characterized in that: The fresh air heat pump system comprises: a floor heating device installed at the bottom of the room; a fresh air heat exchange device installed at the top of the room; a curtain wall installed at the indoor side wall, with a heat exchange cavity inside; a first air valve arranged at the connecting port between the heat exchange cavity and the outdoor space; a second air valve arranged at the connecting port between the heat exchange cavity and the fresh air heat exchange device; a third air valve arranged at the connecting port between the heat exchange cavity and the indoor bottom space; the control method comprises: Get the operation mode of the fresh air heat pump system; According to the operation mode of the fresh air heat pump system, the opening and closing states of the first air valve, the second air valve and the third air valve are controlled.

2. The control method according to claim 1, characterized in that: According to the operation mode of the fresh air heat pump system, the opening and closing states of the first air valve, the second air valve and the third air valve are controlled, including: When the fresh air heat pump system operates in heating mode, the first air valve and the second air valve are controlled to open; or, When the fresh air heat pump system operates in cooling mode, the second air valve and the third air valve are controlled to open.

3. The control method according to claim 2, characterized in that: When the fresh air heat pump system operates in a heating mode, after controlling the first air valve and the second air valve to open, the method further includes: Get the floor temperature at the bottom of the room; The opening and closing state of the third air valve is controlled according to the floor temperature at the bottom of the room.

4. The control method according to claim 3, characterized in that: According to the floor temperature at the bottom of the room, the opening and closing state of the third air valve is controlled, including: When the floor temperature at the bottom of the room is less than or equal to the preset temperature, the third air valve is controlled to close; or, When the floor temperature at the bottom of the room is greater than the preset temperature, the third air valve is controlled to open.

5. The control method according to any one of claims 1 to 4, characterized in that: The fresh air heat exchange system includes a return air valve, an air mixing valve, an air supply valve, a fresh air valve and an exhaust valve; the control method also includes: According to the operation mode of the fresh air heat pump system, the opening and closing states of the return air valve, mixing air valve, supply air valve, fresh air valve and exhaust air valve are controlled.

6. The control method according to claim 5, characterized in that: According to the operation mode of the fresh air heat pump system, the opening and closing states of the return air valve, mixing air valve, supply air valve, fresh air valve and exhaust air valve are controlled, including: When the fresh air heat pump system is running in heating mode, the return air valve, mixing air valve, supply air valve and exhaust air valve are controlled to open; or, When the fresh air heat pump system operates in cooling mode, the air mixing valve, supply air valve, fresh air valve and exhaust air valve are controlled to open.

7. The control method according to any one of claims 1 to 4, characterized in that: The fresh air heat pump system also includes a photovoltaic energy storage device connected to the curtain wall; the control method also includes: According to the operation mode of the fresh air heat pump system, the working state of the photovoltaic energy storage equipment is controlled.

8. The control method according to claim 7, characterized in that: According to the operation mode of the fresh air heat pump system, the working state of the photovoltaic energy storage equipment is controlled, including: When the fresh air heat pump system operates in heating mode, the photovoltaic energy storage device is controlled to enter a heating state to preheat the airflow in the heat exchange cavity; or When the fresh air heat pump system operates in cooling mode, the photovoltaic energy storage device is controlled to exit the heating state to stop preheating the airflow in the heat exchange cavity.

9. A control device for a fresh air heat pump system, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for the fresh air heat pump system according to any one of claims 1 to 8 when running the program instructions.

10. A fresh air heat pump system, characterized in that: include: Floor heating device, installed at the bottom of the room; Fresh air heat exchange device, installed on the indoor top; Curtain wall, installed on the indoor side wall, with a heat exchange cavity inside; A first air valve is arranged at the communication port between the heat exchange cavity and the outdoor space; A second air valve is arranged at the communication port between the heat exchange cavity and the fresh air heat exchange device; The third air valve is arranged at the communication port between the heat exchange cavity and the indoor bottom space; The control device for the fresh air heat pump system as described in claim 9 is electrically connected to the first air valve, the second air valve and the third air valve respectively.

11. A computer-readable storage medium storing program instructions, characterized in that: When the program instructions are executed, the computer is used to execute the control method for the fresh air heat pump system according to any one of claims 1 to 8.

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