Energy transfer device and air conditioner high-energy-efficiency heat supply linkage method

Abstract

According to the energy transfer device and the high-energy-efficiency heat supply linkage method of the air conditioner, heat is provided for a room through air conditioner heating, and the energy transfer device is used for transferring the heat which is generated by air conditioner heating and accumulated in the upper space of the room due to thermal buoyancy to the lower space of the room where a personnel activity area is located; air conditioner heating and the operation state of the energy transfer device are regulated in a linkage mode, the linkage method comprises four modes, the mode 1 is continuous operation of the energy transfer device and the air conditioner, the mode 2 is intermittent operation of the energy transfer device and continuous operation of the air conditioner, the mode 3 is continuous operation of the energy transfer device and intermittent operation of the air conditioner, and the mode 4 is alternate switching operation of the energy transfer device and the air conditioner. According to the embodiment of the invention, through mode optimization, heat discomfort (the head and foot temperature differences in the sitting posture and the standing posture are respectively reduced by 85.0% and 70.8%) and high-energy-efficiency heat supply (the energy efficiency is improved by 56.6%) caused by excessive head and foot temperature differences are realized.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning and heating, and in particular to an energy transfer device and an air conditioning high-efficiency heating linkage method. Background Art

[0002] Winter heating is an inevitable requirement for creating a thermally comfortable environment. However, winter heating consumes a lot of energy and is the focus of energy conservation and emission reduction in the construction field. On-demand heating is a major technical path for high-efficiency heating.

[0003] There are two main heating methods: radiation and convection. Radiant heating creates a uniform thermal environment with high comfort, but its thermal response is slow and is not suitable for heating on demand. Convection heating has a fast thermal response and is suitable for heating on demand. Air conditioning is the most common form of convection heating and is widely used in residential and office buildings.

[0004] However, the heat waste and thermal discomfort caused by the heat buoyancy of air conditioning convection heating need to be solved urgently. Because the hot air supply of convection heating is affected by the heat buoyancy, the hot air supply floats to the upper space of the room, causing the heat of the supply air to accumulate in the upper space of the room. The heat accumulated in the upper space of the room cannot be used to create a thermal environment in the personnel activity area, resulting in a waste of hot air supply energy and low thermal efficiency in creating a thermal environment in the personnel activity area. At the same time, the heat accumulated in the upper space of the room causes thermal stratification in the room, resulting in thermal discomfort caused by a large temperature difference between the head and feet. Summary of the invention

[0005] In order to overcome the above-mentioned problems of the prior art, the purpose of the present invention is to provide a method for linking an energy transferor and an air conditioner with high energy efficiency heating, which uses air conditioning heating to provide heat to the room, and uses the energy transferor to transfer the heat generated by the air conditioning heating and accumulated in the upper space of the room due to thermal buoyancy to the lower space of the room where the personnel activity area is located, and link and regulate the operating status of the air conditioning heating and the energy transferor to achieve the reduction of thermal discomfort caused by excessive temperature difference between the head and feet and high energy efficiency heating.

[0006] In order to achieve the above object, the technical scheme of the present invention is as follows:

[0007] An energy transfer device and a high-efficiency heating linkage method for an air conditioner. The air conditioner is used for heating to provide heat for a room. The energy transfer device is used to transfer the heat accumulated in the upper space of the room due to thermal buoyancy generated by the air conditioner heating to the lower space of the room where people are active. The operating states of the air conditioner heating and the energy transfer device are linked and regulated. The linkage method includes four modes. Mode 1 is that the energy transfer device and the air conditioner operate continuously. Mode 2 is that the energy transfer device operates intermittently and the air conditioner operates continuously. Mode 3 is that the energy transfer device operates continuously and the air conditioner operates intermittently. Mode 4 is that the energy transfer device and the air conditioner alternately switch and operate, so as to reduce the thermal discomfort caused by too large a temperature difference between the head and feet and achieve high-efficiency heating. The power source of the energy transfer device is a blower, including a cross-flow blower, or other types of blowers that can generate similar power.

[0008] In the said Mode 2, the energy transfer device alternately switches between the operating and non-operating states. As the operating time of the energy transfer device increases, the thermal stratification indoors decreases, and the heat transfer efficiency of the energy transfer device decreases. The operating duration of the energy transfer device is determined by the user's requirement for the heat transfer efficiency of the energy transfer device. As the non-operating time of the energy transfer device increases, the thermal stratification phenomenon indoors increases and the heat accumulated in the upper space of the room increases. The non-operating duration of the energy transfer device is determined by the user's requirement for indoor thermal stratification and the requirement for the heat accumulation in the upper space of the room.

[0009] In the said Mode 3, the air conditioner alternately switches between the heating and non-heating states. The longer the duration of the non-heating state relative to the heating state, the lower the energy consumption of the air conditioner, but the temperature in the area where people are active will drop due to the intrusion of cold air. The duration of the non-heating state relative to the heating state is determined by the thermal comfort requirements in the area where people are active.

[0010] In the said Mode 4, the energy transfer device alternately switches between the operating and non-operating states, and the air conditioner alternately switches between the heating and non-heating states. When the energy transfer device is operating, the air conditioner does not heat. When the energy transfer device is not operating, the air conditioner heats. The larger the ratio of the operating duration of the energy transfer device to the heating duration of the air conditioner, the lower the energy consumption of the air conditioner, but the temperature in the area where people are active will drop due to the intrusion of cold air. The ratio of the operating duration of the energy transfer device to the heating duration of the air conditioner is determined by the thermal comfort requirements in the area where people are active.

[0011] The air conditioner energy efficiency and thermal comfort of the four modes of the said linkage method are different. According to the user's requirements for energy efficiency and thermal comfort, the mode that best meets the user's requirements is selected from the four modes.

[0012] The energy transfer device is installed in the upper space of the room. The installation position should be at a distance from the air conditioner to avoid short - circuit between the inlet and outlet air of the energy transfer device and that of the air conditioner. The inlet of the energy transfer device is a negative pressure area, which sucks in hot air from the upper space of the room. By using the wall - attachment effect of the air flow at the inlet on the room ceiling, the ability to suck in hot air from the upper space of the room is increased.

[0013] The energy transfer device is installed close to the wall surface. The outlet of the energy transfer device sends hot air to the lower space of the room where people are active. By using the wall - attachment effect of the air flow at the outlet, the hot air is sent to the lower space of the room where people are active. While the outlet air of the energy transfer device flows downward along the wall surface, the jet of the outlet air can entrain indoor air along the way, and its entrainment force is particularly strong in the upper space of the room, sending more hot air from the upper space of the room to the lower space of the room where people are active.

[0014] The greater the air velocity at the outlet of the energy transfer device, the more hot air from the upper space of the room can be sent to the lower space of the room where people are active. The maximum value of the air velocity at the outlet of the energy transfer device is determined according to the limit value of the increase in air velocity in the area where people are active caused by hot air supply at the outlet. The limit value of the air velocity in the area where people are active is determined according to the thermal comfort standard or people's thermal preference.

[0015] The energy transfer device does not need to be provided with a heat treatment device.

[0016] The energy transfer device can be loaded with an air humidity treatment module or an air purification module.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By using the energy transfer device to transfer the heat accumulated at the top of the room due to thermal buoyancy, the heating utilization efficiency of the air conditioner is improved, and the thermal discomfort caused by the head - foot temperature difference is reduced.

[0019] 2. Through the optimization of the adaptability of different linkage modes between the air conditioner and the energy transfer device, the combined advantages of the heating capacity of the air conditioner and the energy transfer capacity of the energy transfer device are fully exerted, further improving the heating utilization efficiency of the air conditioner, reducing the thermal discomfort caused by excessive head - foot temperature difference, and achieving high - energy - efficiency heating.

[0020] In summary, through the optimization of different linkage modes of the present invention, the thermal discomfort caused by excessive head - foot temperature difference is reduced and high - energy - efficiency heating is achieved. Description of the Drawings

[0021] Figure 1 It is a real - scene diagram of an embodiment of the present invention.

[0022] Figure 2 It is a plan view of an embodiment of the present invention.

[0023] Figure 3 This is the graph of the measured inlet / outlet air temperature of the air conditioner, the air velocity at the air conditioner outlet, and the temperature and velocity at the outlet of the energy transfer device in the embodiments of the present invention. Among them Figure 3 (a) in it is the existing method, Figure 3 (b) in it is Mode 1 of the present invention, Figure 3 (c) in it is Mode 2 of the present invention, Figure 3 (d) in it is Mode 3 of the present invention, Figure 3 (e) in it is Mode 4 of the present invention.

[0024] Figure 4 This is the graph of the air temperature and air velocity of the L1 measurement line in the embodiments of the present invention. Among them Figure 4 (a) in it is the existing method, Figure 4 (b) in it is Mode 1 of the present invention, Figure 4 (c) in it is Mode 2 of the present invention, Figure 4 (d) in it is Mode 3 of the present invention, Figure 4 (e) in it is Mode 4 of the present invention.

[0025] Figure 5 This is the graph of the air temperature and air velocity of the L2 measurement line in the embodiments of the present invention. Among them Figure 5 (a) in it is the existing method, Figure 5 (b) in it is Mode 1 of the present invention, Figure 5 (c) in it is Mode 2 of the present invention, Figure 5 (d) in it is Mode 3 of the present invention, Figure 5 (e) in it is Mode 4 of the present invention.

[0026] Figure 6 This is the graph of the air temperature and air velocity of the L3 measurement line in the embodiments of the present invention. Among them Figure 6 (a) in it is the existing method, Figure 6 (b) in it is Mode 1 of the present invention, Figure 6 (c) in it is Mode 2 of the present invention, Figure 6 (d) in it is Mode 3 of the present invention, Figure 6 (e) in it is Mode 4 of the present invention.

[0027] Figure 7 This is the graph of the air temperature and air velocity of the L4 measurement line in the embodiments of the present invention. Among them Figure 7 (a) in it is the existing method, Figure 7 (b) in it is Mode 1 of the present invention, Figure 7 (c) in it is Mode 2 of the present invention, Figure 7 (d) in it is Mode 3 of the present invention, Figure 7 (e) in it is Mode 4 of the present invention.

[0028] Figure 8 It is the air temperature difference map on the L1-L4 survey line in the embodiment of the present invention.

[0029] Figure 9 It is the heat consumption map of the embodiment of the invention and the existing method. Detailed implementation manners

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0031] The present invention provides an energy transfer device and a high-efficiency heating linkage method for air conditioners. The air conditioner is used for heating to provide heat to a room, and the energy transfer device is used to transfer the heat accumulated in the upper space of the room due to thermal buoyancy generated by the air conditioner heating to the lower space of the room where people are active. The operating states of the air conditioner heating and the energy transfer device are linked and regulated. The linkage method includes four modes. Mode 1 is that the energy transfer device and the air conditioner operate continuously. Mode 2 is that the energy transfer device operates intermittently and the air conditioner operates continuously. Mode 3 is that the energy transfer device operates continuously and the air conditioner operates intermittently. Mode 4 is that the energy transfer device and the air conditioner alternately switch and operate, so as to reduce the thermal discomfort caused by too large a head-foot temperature difference and achieve high-efficiency heating. The power source of the energy transfer device is a fan, including a cross-flow fan, or other types of fans that can generate similar power. The linkage method is preferably used in the four modes to reduce the thermal discomfort caused by too large a head-foot temperature difference and achieve high-efficiency heating.

[0032] Embodiment

[0033] The specific implementation scenario of the present invention is as Figure 1 and 2 shown, which is a living room scenario. A floor-standing air conditioner is installed in the living room. The existing method only uses the hot air supply of the air conditioner to provide heat to the room.

[0034] The present invention not only uses the floor-standing air conditioner, but also uses the energy transfer device to transfer the heat accumulated in the upper space of the room due to thermal buoyancy to the lower space of the room where people are active.

[0035] The energy transfer device is installed in the upper space of the room, and the distance from its top to the ceiling is 110 mm. The distance from the ceiling to the floor is 2.8 m. The air inlet of the energy transfer device is 1100 mm (length) × 140 mm (width). The air inlet of the energy transfer device is 140 mm away from the ceiling. The air inlet of the energy transfer device is a negative pressure area, and it horizontally sucks hot air from the upper space of the room. By using the ceiling attachment effect of the inlet air flow, the ability to suck hot air from the upper space of the room is increased.

[0036] Specifically, the energy transfer device is installed in the upper space of the room and on the side wall close to the wall surface. The air outlet size of the energy transfer device is 1080 mm (length) × 50 mm (width). The air outlet is 13 mm away from the side wall. The energy transfer device sends hot air to the lower part of the room through the air outlet. The air outlet of the energy transfer device sends hot air to the lower space of the room where the personnel activity area is located, and uses the wall attachment effect of the hot air supply airflow at the air outlet to send the hot air to the lower space of the room where the personnel activity area is located. When the air outlet of the energy transfer device flows along the wall surface towards the lower space of the room, it entrains the indoor air at the same time. Its entrainment force is particularly strong in the upper space of the room, and more hot air in the upper space of the room is sent to the lower space of the room where the personnel activity area is located. The installation position of the energy transfer device should be kept away from the air conditioner to avoid short circuits between the air inlet and outlet of the energy transfer device and the air inlet and outlet of the air conditioner. In this embodiment, the horizontal distance between the energy transfer device and the air conditioner is 1.65 m. The power source of the energy transfer device is a cross-flow fan. The energy transfer device does not need to be provided with a heat treatment device, that is, it does not need to heat-treat the air entering the energy transfer device. The energy transfer device can be loaded with an air humidity treatment module and a purification module to perform humidity treatment and purification treatment on the air entering the energy transfer device.

[0037] When the air conditioner operates, the air conditioner temperature of the present invention is set at 28 °C, and the air speed is selected to be in the automatic mode of the air conditioner. When the energy transfer device operates, the greater the air speed at the air outlet of the energy transfer device, the more hot air in the upper space of the room can be sent to the lower space of the room where the personnel activity area is located. However, when the hot air supply from the air outlet of the energy transfer device reaches the ground, it will collide with the ground and spread along the ground, causing an increase in the air speed in the personnel activity area. Therefore, the maximum value limit of the air speed at the air outlet of the energy transfer device is determined based on the limit value of the air speed in the personnel activity area caused by the hot air supply at the air outlet. The limit value of the air speed in the personnel activity area can be determined according to the thermal comfort standard (such as less than 0.8 m / s) or according to the thermal preference of the user. In this embodiment, according to the thermal preference of the actual measured staff, the limit value of the air speed in the personnel activity area is that the air speed in the personnel activity area of the present invention does not exceed the air speed in the personnel activity area of the existing method. The air speed at the air outlet of the energy transfer device in this embodiment is lower than 6 m / s (as Figure 3 shown). The actual measurement shows ( Figure 4 ) that the maximum air speed in the personnel activity area of the existing method is about 2.5 m / s, while the air speed in the personnel activity area of the present invention does not exceed 2.5 m / s. Therefore, the maximum air speed in the personnel activity area of the embodiment of the present invention does not exceed the maximum air speed of the existing method.

[0038] In this embodiment, the air inlet and outlet air temperatures and the outlet air speed of the air conditioner, and the outlet air temperature and speed of the energy transfer device are actually measured. The experiment simultaneously measures the L1-L4 measuring lines ( Figure 2)。Each measuring line measures the air temperature and velocity at four heights: 0.1 m, 1.1 m, 1.7 m, and 2.7 m. Measuring line L1 and L3 are located in the near zone and far zone of the air supply jet of the air conditioner respectively. Measuring line L2 and L3 are located in the near zone and far zone of the air supply jet of the energy transfer device respectively. Measuring line L4 is far from the air supply jet zone of the air conditioner and the air supply jet zone of the energy transfer device.

[0039] When using the existing method, when the air conditioner is operating stably ( Figure 3 40 minutes to 60 minutes of a), the air temperature at the outlet of the air conditioner (i.e., the supply air temperature) is as high as 55 °C, resulting in a strong supply air thermal buoyancy force, making the thermal stratification temperature difference of measuring lines L1 - L4 (i.e., the temperature difference between 2.7 m and 0.1 m) between 14.5 °C – 16.6 °C (average 15.2 °C) ( Figure 4 – Figure 8 ). This indicates that the existing method causes a large amount of heat to accumulate in the upper space of the room, resulting in heat waste problems. The heat consumption of the existing method is as high as 7.7 kW ( Figure 9 ).

[0040] Under the existing method, the sitting head - foot temperature difference (i.e., the temperature difference between 1.1 m and 0.1 m) and standing head - foot temperature difference (i.e., the temperature difference between 1.7 m and 0.1 m) of measuring lines L1 - L4 are between 8.0 °C – 13.8 °C (average 9.7 °C) and 10.6 °C – 28.0 °C (average 15.2 °C) respectively ( Figure 4 – Figure 8 ), far exceeding the upper limit of the head - foot temperature difference (i.e., 3 °C) specified by the thermal comfort standard, resulting in thermal discomfort.

[0041] Under mode 1 of the method of the present invention, the thermal stratification temperature difference (i.e., the temperature difference between 2.7 m and 0.1 m) is reduced to 4.9 °C – 10.6 °C (average 8.7 °C) ( Figure 4 – Figure 8 ). This indicates that mode 1 of the method of the present invention effectively transfers the heat in the upper space of the room to the lower space of the room where people are active, re - using the originally wasted heat. Since mode 1 of the method of the present invention can efficiently utilize heat to create a thermally comfortable environment, mode 1 of the method of the present invention reduces the heat consumption to 5.4 kW, with an energy - saving rate of 30.3% compared to the existing method ( Figure 9 ).

[0042] Under mode 1 of the method of the present invention, the sitting head - foot temperature difference (i.e., the temperature difference between 1.1 m and 0.1 m) and standing head - foot temperature difference (i.e., the temperature difference between 1.7 m and 0.1 m) of measuring lines L1 - L4 are between 0.3 °C – 6.3 °C (average 3.3 °C) and 1.5 °C – 17.7 °C (average 7.9 °C) respectively ( Figure 4 – Figure 8)。Compared with the existing methods, Mode 1 of the present method reduces the head-foot temperature difference in sitting and standing postures by 66.1% and 47.9% respectively, significantly alleviating the thermal discomfort problem caused by excessive head-foot temperature difference.

[0043] Under Mode 2 of the method of the present invention, the thermal stratification temperature difference (i.e., the temperature difference between 2.7 m and 0.1 m) is reduced to 6.9 °C – 10.2 °C (with an average of 9.0 °C)( Figure 4 – Figure 8 ), which indicates that Mode 2 of the method of the present invention effectively transfers the heat in the upper space of the room to the lower space of the room where people are active, reusing the originally wasted heat. Since Mode 2 of the present invention can efficiently utilize heat to create a thermally comfortable environment, Mode 2 of the present invention reduces the heat consumption to 5.8 kW, with an energy saving rate of 25.4% compared with the existing methods( Figure 9 ).

[0044] Under Mode 2 of the method of the present invention, the head-foot temperature difference in sitting posture (i.e., the temperature difference between 1.1 m and 0.1 m) and the head-foot temperature difference in standing posture (i.e., the temperature difference between 1.7 m and 0.1 m) of the measuring lines L1-L4 are respectively between 2.2 °C – 6.3 °C (with an average of 4.0 °C) and 3.8 °C – 18.3 °C (with an average of 8.8 °C)( Figure 4 – Figure 8 ). Compared with the existing methods, Mode 2 of the present method reduces the head-foot temperature difference in sitting and standing postures by 58.8% and 42.2% respectively, significantly alleviating the thermal discomfort problem caused by excessive head-foot temperature difference.

[0045] Under Mode 3 of the method of the present invention, the thermal stratification temperature difference (i.e., the temperature difference between 2.7 m and 0.1 m) is reduced to 3.5 °C – 6.4 °C (with an average of 5.2 °C)( Figure 4 – Figure 8 ), which indicates that Mode 3 of the method of the present invention effectively transfers the heat in the upper space of the room to the lower space of the room where people are active, reusing the originally wasted heat. Since Mode 3 of the present invention can efficiently utilize heat to create a thermally comfortable environment, Mode 3 of the present invention reduces the heat consumption to 3.4 kW, with an energy saving rate of 56.5% compared with the existing methods( Figure 9 ).

[0046] Under Mode 3 of the method of the present invention, the head-foot temperature difference in sitting posture (i.e., the temperature difference between 1.1 m and 0.1 m) and the head-foot temperature difference in standing posture (i.e., the temperature difference between 1.7 m and 0.1 m) of the measuring lines L1-L4 are respectively between 0.3 °C – 3.8 °C (with an average of 1.5 °C) and 1.1 °C – 11.7 °C (with an average of 4.5 °C)( Figure 4 – Figure 8 ). Compared with the existing methods, Mode 3 of the present method reduces the head-foot temperature difference in sitting and standing postures by 85.0% and 70.8% respectively, significantly alleviating the thermal discomfort problem caused by excessive head-foot temperature difference.

[0047] Under mode 4 of the method of the present invention, the thermal stratification temperature difference (i.e., the temperature difference between 2.7 m and 0.1 m) is reduced to 7.9 °C - 8.8 °C (average 8.4 °C)( Figure 4 – Figure 8 ), which indicates that mode 4 of the method of the present invention effectively transfers the heat in the upper space of the room to the lower space of the room where the human activity area is located, and re-uses the originally wasted heat. Since mode 4 of the present invention can efficiently utilize heat to create a thermally comfortable environment, mode 3 of the present invention reduces the heat consumption to 4.9 kW, and the energy saving rate is 36.5% compared with the existing method( Figure 9 ).

[0048] Under mode 4 of the method of the present invention, the sitting head-to-foot temperature difference (i.e., the temperature difference between 1.1 m and 0.1 m) and the standing head-to-foot temperature difference (i.e., the temperature difference between 1.7 m and 0.1 m) of the measuring lines L1-L4 are respectively between 2.7 °C - 4.7 °C (average 3.5 °C) and 5.0 °C - 16.2 °C (average 8.1 °C)( Figure 4 – Figure 8 ). Compared with the existing method, mode 4 of the present method reduces the sitting and standing head-to-foot temperature differences by 64.3% and 47.1% respectively, and greatly alleviates the thermal discomfort problem caused by too large a head-to-foot temperature difference.

[0049] In a specific implementation, the four modes of the linkage method proposed by the present invention are superior to the existing method in terms of energy efficiency and thermal comfort; among the four modes, mode 3 is the best in terms of energy efficiency and thermal comfort, so mode 3 is preferably selected in this embodiment.

[0050] In summary, the air-conditioning heating of the existing method is restricted by the thermal buoyancy force, resulting in heat accumulation in the upper space of the room, facing the problems of low energy efficiency in creating a thermal environment and thermal discomfort caused by too large a head-to-foot temperature difference. The present invention proposes an energy transfer device and an air-conditioning high-energy-efficiency heating linkage method, which uses air-conditioning heating to provide heat for the room, uses the energy transfer device to transfer the heat accumulated in the upper space of the room due to the thermal buoyancy force generated by air-conditioning heating to the lower space of the room where the human activity area is located, and jointly controls the operating states of the air-conditioning heating and the energy transfer device. The linkage method is preferably selected among the four modes to achieve high-energy-efficiency heating with reduced thermal discomfort caused by too large a head-to-foot temperature difference.

Claims

1. A method for high-efficiency heating linkage between an energy transfer device and an air conditioner, characterized in that: Air conditioning heating is used to provide heat to the room, and the energy transferor is used to transfer the heat generated by air conditioning heating and accumulated in the upper space of the room due to thermal buoyancy to the lower space of the room where the personnel activity area is located. The operating status of air conditioning heating and the energy transferor are linked and regulated. The linkage method includes four modes. Mode 1 is continuous operation of the energy transferor and air conditioning, mode 2 is intermittent operation of the energy transferor and continuous operation of the air conditioner, mode 3 is continuous operation of the energy transferor and intermittent operation of the air conditioner, and mode 4 is alternating operation of the energy transferor and the air conditioner, so as to reduce thermal discomfort caused by excessive temperature difference between head and feet and provide high-efficiency heating.

2. The energy transfer device and air conditioner high energy efficiency heating linkage method according to claim 1 is characterized in that: In the mode 2, the energy transferor switches alternately between the operating and non-operating states; as the operating time of the energy transferor increases, the thermal stratification in the room decreases, and the heat transfer efficiency of the energy transferor decreases, and the operating time of the energy transferor is determined by the user's requirements for the heat transfer efficiency of the energy transferor; as the non-operating time of the energy transferor increases, the thermal stratification phenomenon in the room increases and the heat accumulated in the upper space of the room increases, and the non-operating time of the energy transferor is determined by the user's requirements for the indoor thermal stratification and the requirements for the heat accumulation in the upper space of the room.

3. The energy transfer device and air conditioner high energy efficiency heating linkage method according to claim 1 is characterized in that: In mode 3, the air conditioner switches alternately between heating and non-heating states; the longer the non-heating state lasts relative to the heating state, the lower the air conditioning energy consumption, but the temperature in the personnel activity area will drop due to the intrusion of cold air; the duration of the non-heating state relative to the heating state is determined by the thermal comfort requirements of the personnel activity area.

4. The energy transfer device and air conditioner high energy efficiency heating linkage method according to claim 1 is characterized in that: In the mode 4, the energy transferor switches alternately between the operating and non-operating states, and the air conditioner switches alternately between the heating and non-heating states; when the energy transferor is operating, the air conditioner is not heating; when the energy transferor is not operating, the air conditioner is heating; The larger the ratio of the energy transferor operating time to the air conditioning heating time, the lower the air conditioning energy consumption, but the temperature of the personnel activity area will drop due to the intrusion of cold air; the ratio of the energy transferor operating time to the air conditioning heating time is determined by the thermal comfort demand of the personnel activity area.

5. A method for high-efficiency heating linkage between an energy transfer device and an air conditioner according to any one of claims 1 to 4, characterized in that: The four modes of the linkage method have different air conditioning energy efficiencies and thermal comforts. According to the user's requirements for energy efficiency and thermal comfort, the mode that best meets the user's requirements is selected from the four modes.

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