Energy-saving air conditioning system for tall and large atrium space

Abstract

The utility model discloses an energy-saving air conditioning system for a tall and large atrium space. The system comprises a building automatic control system, a signal line, a cabinet type centrifugal fan, a heat recovery fresh air handling unit, an electric control valve, a cylindrical nozzle, a single-layer shutter air opening, a rainproof shutter air opening, an air supply pipe, a fresh air pipe, an air return pipe, an exhaust pipe, an air conditioning system, a multi-blade air valve, an electric window, a temperature sensing measuring point and a sunshade curtain. Technical means such as natural ventilation, mechanical ventilation, atrium exhaust air recycling and fresh air heat recovery are fully utilized to be combined and applied in different seasons, the outdoor environment temperature is fully utilized, indoor air energy is recovered, maximum utilization of energy is achieved, the comfort of the atrium is improved, and the operation cost of a building is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of HVAC applications, and particularly to an energy-saving air-conditioning system for a high atrium space. Background Art

[0002] In the high atrium space inside a building, due to reasons such as thermal buoyancy and radiant heat transfer, obvious stratification and overheating of air temperature in the vertical direction will occur, resulting in poor thermal comfort in the atrium environment, high energy consumption of the building air-conditioning, and certain impacts on the air-conditioning loads of surrounding rooms. For atriums with a net height exceeding 30 meters, the temperature stratification and overheating phenomena are more obvious.

[0003] How to make full use of technical means such as natural ventilation, mechanical ventilation, atrium exhaust air reuse, and fresh air heat recovery in different seasons, make full use of the outdoor environmental temperature and recover the indoor air energy, achieve the maximum utilization of energy, improve the comfort of the atrium, minimize the energy consumption of the air-conditioning system to the greatest extent, and reduce the building operation cost has very positive significance. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides an energy-saving air-conditioning system for a high atrium space to achieve the purpose of efficient energy utilization and reduction of the energy consumption of the air-conditioning system.

[0005] The utility model is realized as follows: an energy-saving air-conditioning system for a high atrium space includes an all-air air-conditioning system unit communicated with the atrium, a fresh air heat recovery unit arranged in the machine room, and an indoor exhaust air duct, an outdoor exhaust air duct, an outdoor fresh air inlet duct, and an indoor fresh air inlet duct connected to the fresh air heat recovery unit. The indoor exhaust air duct includes a third electric control valve sequentially connected to the fresh air heat recovery unit through a return air duct and a first single-layer louvered air outlet communicated with the atrium. The outdoor exhaust air duct includes a first electric control valve sequentially connected to the fresh air heat recovery unit through a first exhaust air duct and a first rain-proof louvered air outlet. The outdoor fresh air inlet duct includes a fifth electric control valve sequentially connected to the fresh air heat recovery unit through a fresh air duct and a second rain-proof louvered air outlet. The indoor fresh air inlet duct includes a plurality of multi-blade air valves for supplying air to a plurality of surrounding rooms, which are connected to the fresh air heat recovery unit through a second supply air duct. An outdoor exhaust air bypass duct is arranged on the return air duct between the third electric control valve and the first single-layer louvered air outlet of the indoor exhaust air duct. The outdoor exhaust air bypass duct includes a fourth electric control valve, a cabinet centrifugal fan, and a third rain-proof louvered air outlet sequentially connected to the return air duct. An indoor return air bypass duct is arranged on the first exhaust air duct between the first electric control valve of the outdoor exhaust air duct and the fresh air heat recovery unit. The indoor supply air bypass duct includes a second electric control valve and a cylindrical air outlet sequentially connected to the first exhaust air duct through a first supply air duct. The cylindrical air outlet leads into the atrium.

[0006] A first temperature sensor is provided on the outdoor fresh air inlet channel, and a second temperature sensor is provided on the indoor fresh air inlet channel. The first temperature sensor and the second temperature sensor are connected to the building automation system, and the building automation system issues corresponding action instructions according to the temperature change to control the opening or closing of the electric control valve.

[0007] An electric window is provided in the atrium, and the electric window is installed at the height of the third floor ground at the bottom of the atrium.

[0008] An electric sunshade unit is provided at the top of the atrium.

[0009] The clear height of the atrium exceeds 30 meters.

[0010] The advantages and technical effects of the present utility model are as follows:

[0011] 1. Make full use of technical means such as mechanical ventilation, atrium exhaust air reuse, and fresh air heat recovery in combination in different seasons, make full use of the outdoor environmental temperature and recover the indoor air energy to achieve the maximum utilization of energy.

[0012] 2. High degree of automation, automatically controlled through the control management platform, and different operating conditions can be adjusted according to different seasons to ensure the efficient and stable operation of the system.

[0013] 3. Achieve the maximum utilization of energy, improve the comfort of the atrium, minimize the energy consumption of the air conditioning system to the greatest extent, and reduce the building operation cost. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the energy-saving air conditioning system of the present utility model for a high atrium space;

[0015] Figure 2 is Figure 1 a partial enlarged view of

[0016] In the figure: 1 - building automation system, 2 - signal line, 3 - heat recovery fresh air system, 4 - cabinet centrifugal fan, 5 - rainproof louver air outlet I, 6 - first exhaust air duct, 7 - all-air air conditioning system unit, 8 - first electric control valve, 9 - second electric control valve, 10 - third electric control valve, 11 - fourth electric control valve, 12 - second rainproof louver air outlet, 13 - electric window, 14 - return air duct, 15 - first single-layer louver air outlet, 16 - second rainproof louver air outlet, 17 - fresh air duct, 18 - first temperature sensing measurement point, 19 - electric sunshade unit, 20 - fifth electric control valve, 21 - first air supply duct, 22 - second temperature sensor, 23 - cylindrical air outlet, 24 - second air supply duct, 25 - multi-blade air valve. Specific Embodiments

[0017] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0018] In the description of the creation of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the creation of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the creation of the present utility model.

[0019] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0020] Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the creation of the present utility model, unless otherwise specified, the meaning of "plural" is two or more.

[0021] In the description of the creation of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the creation of the present utility model can be understood through specific circumstances.

[0022] The electrical devices, controllers, etc. described in the present utility model are all conventional settings, and the electrical connection methods are also conventional connections.

[0023] Such as Figure 1 、 2As shown in the figure, the energy-saving air-conditioning system for a tall atrium space of the present utility model includes an all-air air-conditioning system unit 7 communicating with the atrium, a fresh air heat recovery unit 3 arranged in the machine room, and an indoor exhaust air duct, an outdoor exhaust air duct, an outdoor fresh air intake duct, and an indoor fresh air intake duct connected to the fresh air heat recovery unit 3. The indoor exhaust air duct includes a third electric regulating valve 10 connected to the fresh air heat recovery unit 3 in sequence through a return air duct 14 and a first single-layer louvered air outlet 15 communicating with the atrium. The outdoor exhaust air duct includes a first electric regulating valve 8 connected to the fresh air heat recovery unit 3 in sequence through a first exhaust air duct 6 and a first rain-proof louvered air outlet 5. The outdoor fresh air intake duct includes a fifth electric regulating valve 20 connected to the fresh air heat recovery unit 3 in sequence through a fresh air duct 17 and a second rain-proof louvered air outlet 16. The indoor fresh air intake duct includes a plurality of multi-blade air valves 25 that supply air to a plurality of peripheral rooms and are connected to the fresh air heat recovery unit 3 through a second supply air duct 24. An outdoor exhaust air bypass duct is provided on the return air duct 14 between the third electric regulating valve 10 and the first single-layer louvered air outlet 15 of the indoor exhaust air duct. The outdoor exhaust air bypass duct includes a fourth electric regulating valve 11, a cabinet centrifugal fan 4, and a third rain-proof louvered air outlet 12 connected to the return air duct 14 in sequence. An indoor return air bypass duct is provided on the first exhaust air duct 6 between the first electric regulating valve 8 and the fresh air heat recovery unit 3 of the outdoor exhaust air duct. The indoor supply air bypass duct includes a second electric regulating valve 9 and a cylindrical air outlet 23 connected to the first exhaust air duct 6 in sequence through a first supply air duct 21. The cylindrical air outlet 23 leads into the atrium.

[0024] A first temperature sensor 18 is provided on the outdoor fresh air intake duct, and a second temperature sensor 22 is provided on the indoor fresh air intake duct. The first temperature sensor 18 and the second temperature sensor 22 are connected to the building automation system 1 through a signal line 2. The building automation system 1 issues corresponding action instructions according to the temperature change to control the opening or closing of the electric regulating valve.

[0025] An electric window 13 is provided in the atrium, and the electric window 13 is installed at the height of the third floor ground at the bottom of the atrium.

[0026] An electric sunshade unit 19 is provided at the top of the atrium.

[0027] The clear height of the atrium exceeds 30 meters.

[0028] The low-carbon and energy-saving air-conditioning system for the tall atrium space of the utility model has the following specific operating conditions: When the temperature at the first temperature sensing measurement point 18 is lower than 24°C and higher than 12°C, the fan of the fresh air heat recovery unit 3 operates, and the all-air air-conditioning system unit 7, the first electric control valve 8, the second electric control valve 9, and the third electric control valve 10 are closed; the electric sunshade unit 19, the electric window 13, the cabinet centrifugal fan 4, the fourth electric control valve 11, and the fifth electric control valve 20 are opened. The atrium exhaust air is directly discharged outdoors through the first single-layer louver air outlet 15, the return air duct 14, and the exhaust unit, and the fresh air in the rooms around the atrium is sent indoors through the fresh air duct; When the temperature at the first temperature sensing measurement point 18 is higher than 24°C and lower than 32°C, the fresh air of the fresh air heat recovery unit 3 operates, the first electric control valve 8, the second electric control valve 9, and the third electric control valve 10 are opened and closed, and the all-air air-conditioning system unit 7, the electric sunshade unit 19, the electric window 13, the cabinet centrifugal fan 4, the fourth electric control valve 11, and the fifth electric control valve 20 are opened. The atrium exhaust air is directly discharged outdoors through the first single-layer louver air outlet 15, the return air duct 14, and the exhaust unit, and the fresh air in the rooms around the atrium is sent indoors through the fresh air duct; When the temperature at the first temperature sensing measurement point 18 is higher than 32°C, the electric sunshade unit 19, the first electric control valve 8, the second electric control valve 9, and the third electric control valve 10 are closed; the all-air air-conditioning system unit 7, the electric window 13, the cabinet centrifugal fan 4, the fourth electric control valve 11, and the fifth electric control valve 20. The atrium exhaust air is directly discharged outdoors through the first single-layer louver air outlet 15, the return air duct 14, and the exhaust unit, and the fresh air in the rooms around the atrium is sent indoors through the fresh air duct, and the fresh air heat recovery unit 3 operates in the fresh air mode; When the temperature at the first temperature sensing measurement point 18 is higher than 12°C, the electric window 13, the fourth electric control valve 11, the cabinet centrifugal fan 4, and the first electric control valve 8 are closed; the electric sunshade unit 19, the all-air air-conditioning system unit 7, the second electric control valve 9, the third electric control valve 10, the fifth electric control valve 20, and the fresh air heat recovery unit 3 are opened. The fresh air in the rooms around the atrium is sent indoors through the fresh air duct. The atrium exhaust air returns to the atrium on the fourth floor through the exhaust air reuse duct and the vertical air duct; When the temperature of the second temperature sensor 22 is lower than 26°C, the exhaust air is discharged outdoors through the exhaust air duct.

[0029] The heat source of the fresh air heat recovery unit 3 is provided by the centralized heating system of the energy station, with a supply water temperature of 45°C and a return water temperature of 40°C. The cold source of the fresh air heat recovery unit 3 is provided by the centralized cooling system of the energy station, with a supply water temperature of 7°C and a return water temperature of 12°C.

[0030] The utility model makes full use of technical means such as natural ventilation, mechanical ventilation, reuse of atrium exhaust air, and fresh air heat recovery in combination in different seasons, fully utilizes the outdoor environmental temperature and recovers the indoor air energy, realizes the maximum utilization of energy, improves the comfort of the atrium, minimizes the energy consumption of the air-conditioning system to the greatest extent, reduces the building operation cost, and has very positive significance.

[0031] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, rather than limiting the utility model. Those skilled in the relevant technical field can also make various changes or modifications without departing from the spirit and scope of the utility model. Therefore, all equivalent technical solutions also belong to the scope of the utility model, and the patent protection scope of the utility model shall be defined by the claims.

Claims

1. An energy-saving air-conditioning system for a tall atrium space, comprising an all-air air-conditioning system unit (7) communicating with the atrium, a fresh air heat recovery unit (3) arranged in a machine room, and an indoor exhaust air duct, an outdoor exhaust air duct, an outdoor fresh air inlet duct, and an indoor fresh air inlet duct connected to the fresh air heat recovery unit (3). The indoor exhaust air duct includes a third electric control valve (10) sequentially connected to the fresh air heat recovery unit (3) through a return air duct (14) and a first single-layer louvered air outlet (15) communicating with the atrium. The outdoor exhaust air duct includes a first electric control valve (8) sequentially connected to the fresh air heat recovery unit (3) through a first exhaust air duct (6) and a first rain-proof louvered air outlet (5). The outdoor fresh air inlet duct includes a fifth electric control valve (20) sequentially connected to the fresh air heat recovery unit (3) through a fresh air duct (17) and a second rain-proof louvered air outlet (16). The indoor fresh air inlet duct includes a plurality of multi-blade air valves (25) for supplying air to a plurality of peripheral rooms and connected to the fresh air heat recovery unit (3) through a second supply air duct (24). It is characterized in that, An outdoor exhaust bypass passage is provided on the return air duct (14) between the third electric control valve (10) and the first single-layer louver air outlet (15) of the indoor exhaust passage. The outdoor exhaust bypass passage includes a fourth electric control valve (11), a cabinet centrifugal fan (4), and a third rain-proof louver air outlet (12) that are sequentially connected to the return air duct (14); an indoor return air bypass passage is provided on the first exhaust air duct (6) between the first electric control valve (8) and the fresh air heat recovery unit (3) of the outdoor exhaust passage. The indoor supply air bypass passage includes a second electric control valve (9) and a cylindrical air outlet (23) that are sequentially connected to the first exhaust air duct (6) through the first supply air duct (21), and the cylindrical air outlet (23) leads into the atrium.

2. The energy-saving air conditioning system for a tall atrium space according to claim 1, wherein A first temperature sensor (18) is provided on the outdoor fresh air inlet passage, and a second temperature sensor (22) is provided on the indoor fresh air inlet passage. The first temperature sensor (18) and the second temperature sensor (22) are connected to the building automation system (1), and the building automation system (1) issues corresponding action instructions according to temperature changes to control the opening or closing of the electric control valve.

3. The energy-saving air-conditioning system for a high atrium space according to claim 1, characterized in that, An electric window (13) is provided in the atrium, and the electric window (13) is installed at the height of the third floor ground at the bottom of the atrium.

4. The energy-saving air-conditioning system for a tall atrium space according to claim 1, wherein An electric sunshade unit (19) is provided at the top of the atrium.

5. The energy-saving air-conditioning system for a tall atrium space according to any one of claims 1-4, characterized in that, The clear height of the atrium exceeds 30 meters.

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