CN216346649U - Fresh air equipment and multi-split air conditioning system - Google Patents
Fresh air equipment and multi-split air conditioning system Download PDFInfo
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- CN216346649U CN216346649U CN202122734520.3U CN202122734520U CN216346649U CN 216346649 U CN216346649 U CN 216346649U CN 202122734520 U CN202122734520 U CN 202122734520U CN 216346649 U CN216346649 U CN 216346649U
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Abstract
The utility model discloses a fresh air device and a multi-split air conditioning system, wherein the fresh air device comprises N groups of air inlet pipes and air outlet pipes, N is an integer greater than or equal to 2, each air inlet pipe is provided with an air inlet valve and an air inlet fan, and each air outlet pipe is provided with an air outlet valve and an air outlet fan; the main air inlet pipe is communicated with the N air inlet pipes, and a main air inlet valve is arranged at the inlet end of the main air inlet pipe; the main air outlet pipe is communicated with the N air outlet pipes, and a main air outlet valve is arranged at the outlet end of the main air outlet pipe. N air inlet pipes and air outlet pipes are connected to each room respectively, and the purpose of indoor and outdoor ventilation can be achieved. Each group of air inlet pipes and each group of air outlet pipes are connected to one room, when two rooms need to be ventilated and adjusted in temperature, the main air inlet valve and the main air outlet valve are closed, the air inlet valve and the air outlet valve of the corresponding room are opened, the air inlet fan and the air outlet fan of one room are started simultaneously, ventilation between the rooms is achieved, the temperature can be adjusted in a balanced mode, and energy consumption is reduced.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to fresh air equipment and a multi-split air conditioning system.
Background
In the related art, the multi-split air conditioning system is connected with indoor and outdoor air through the fresh air equipment, and the functions of indoor and outdoor heat exchange and air exchange can be realized. The main air duct of the fresh air equipment is communicated with the outside, and fresh air is respectively input into each room requiring fresh air through a fresh air fan. However, air exchange between rooms cannot be performed, and problems of slow adjustment and large energy consumption exist.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the fresh air equipment which can exchange air between rooms and is beneficial to balance adjustment of temperature.
The utility model also provides a multi-split air conditioning system with the fresh air equipment.
According to the fresh air equipment of the embodiment of the first aspect of the utility model, N groups of air inlet pipes and air outlet pipes are provided, wherein N is an integer greater than or equal to 2, each air inlet pipe is provided with an air inlet valve and an air inlet fan, and each air outlet pipe is provided with an air outlet valve and an air outlet fan; the main air inlet pipe is communicated with the N air inlet pipes, and a main air inlet valve is arranged at the inlet end of the main air inlet pipe; the main air outlet pipe is communicated with the N air outlet pipes, and a main air outlet valve is arranged at the outlet end of the main air outlet pipe.
The air duct machine provided by the embodiment of the utility model at least has the following beneficial effects: each group of air inlet pipes and air outlet pipes are connected to one room, when outdoor fresh air is conveyed to each room, a main air inlet valve and a main air outlet valve are opened, the air inlet valve is opened, an air inlet fan is started, the fresh air is conveyed to each room through the main air inlet pipe and each air inlet pipe, the air outlet valve is opened and the air outlet fan is started, and air in the room is discharged to the outside through each air outlet pipe and each main air outlet pipe so as to achieve the purpose of air exchange. When the rooms need to exchange air and adjust temperature, the main air inlet valve and the main air outlet valve are closed, the air inlet valve and the air outlet valve of the two rooms to be exchanged are opened, the air inlet fan and the air outlet fan of one room are started simultaneously, mutual air exchange is achieved, temperature balance adjustment can be accelerated, and energy consumption is reduced.
According to some embodiments of the first aspect of the present invention, the fresh air device comprises a fresh air machine, and the air inlet valve and the air outlet valve are integrated inside the fresh air machine.
According to some embodiments of the first aspect of the present invention, the inlet air fan and the outlet air fan are integrated inside the fresh air fan.
According to some embodiments of the first aspect of the present invention, the inlet valve, the outlet valve, the main inlet valve and the main outlet valve are air volume regulating valves.
According to some embodiments of the first aspect of the present invention, the inlet valve, the outlet valve, the main inlet valve and the main outlet valve are vent butterfly valves.
According to some embodiments of the first aspect of the present invention, the air inlet fan and the air outlet fan are axial fans.
According to some embodiments of the first aspect of the present invention, the fresh air device is provided with a controller, and the inlet valve, the outlet valve, the inlet fan, the outlet fan, the main inlet valve and the main outlet valve are all electrically connected to the controller.
According to some embodiments of the first aspect of the present invention, the fresh air machine is provided with a temperature sensor, the temperature sensor being electrically connected to the controller.
According to some embodiments of the first aspect of the present invention, the fresh air device has a total heat exchanger, and the main air inlet pipe and the main air outlet pipe are connected to the total heat exchanger.
The multi-split air conditioning system according to the second aspect of the utility model comprises the fresh air device according to the first aspect of the utility model.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a fresh air device according to an embodiment of the first aspect of the present invention;
fig. 2 is a partially enlarged view of fig. 1 at a.
The reference numbers are as follows:
the fresh air machine 100, the air inlet pipe 110, the air inlet valve 111, the air inlet fan 112, the air outlet pipe 120, the air outlet valve 121 and the air outlet fan 122;
a main air inlet pipe 200, a main air inlet valve 210;
main air outlet pipe 300, main air outlet valve 310.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
The air conditioner is a complete set of system for purifying, cooling (or heating), humidifying (or dehumidifying) and the like air in a centralized or semi-centralized manner so as to provide environments required by life or production process standards, and generally comprises an air conditioning unit (host), air treatment end equipment, an air pipe system, a water system and a control system.
It can be understood that the multi-split air conditioning system is a type of central air conditioner, commonly called as "one drives more", and refers to an air conditioning system in which one outdoor unit is connected with two or more fresh air fans through a pipe, the outdoor side adopts an air cooling heat exchange mode, and the indoor side adopts a direct evaporation heat exchange mode. At present, the multi-split air conditioning system is increasingly widely applied to small and medium-sized buildings and partial public buildings.
In the related technology, the multi-split air conditioning system is matched with fresh air equipment to realize indoor and outdoor air exchange, and outdoor fresh air is introduced to replace part of turbid air in a room, so that the air freshness in the room is improved, and a human body feels more comfortable. The fresh air equipment can exchange heat and air with the indoor side, but can not realize the mutual air exchange in room, for example the temperature in a room is too high, and the temperature in another room is too low, only can rely on the quality of multi-connected air conditioning system or heat, carry out body temperature regulation respectively and reach temperature balance, and the power consumption is big and efficient.
Referring to fig. 1 and 2, an embodiment of the present invention provides a fresh air device, where the fresh air device includes N sets of air inlet pipes 110 and air outlet pipes 120, each set of air inlet pipes 110 and air outlet pipes 120 connects to a room or other indoor space, it can be understood that N is an integer greater than or equal to 2, that is, the number of rooms is two or more, four rooms are taken as an example for description below, each set includes one air inlet pipe 110 and one air outlet pipe 120, each air inlet pipe 110 has one air outlet in a room, and each air outlet pipe 120 has one air outlet in a room.
The fresh air equipment is provided with a main air inlet pipe 200 and a main air outlet pipe 300 which are communicated with the outside, the air inlet pipes 110 of the four rooms are connected in parallel and communicated with the main air inlet pipe 200, the air outlet pipes 120 of the four rooms are connected in parallel and communicated with the main air outlet pipe 300, outdoor fresh air is conveyed to each room from the main air inlet pipe 200 and each air inlet pipe 110, turbid air in each room is discharged to the outside through each air outlet pipe 120 and each main air outlet pipe 300, and indoor and outdoor air exchange is achieved.
Considering that the fresh air equipment does not need to operate continuously but operate intermittently, the inlet end of the main air inlet pipe 200 is provided with the main air inlet valve 210, the outlet end of the main air outlet pipe 300 is provided with the main air outlet valve 310, the air inlet of the main air inlet pipe 200 can be opened or closed through the main air inlet valve 210, the air outlet of the main air outlet pipe 300 can be opened or closed through the main air outlet valve 310, and the main air inlet valve 210 and the main air outlet valve 310 are controlled to operate according to ventilation requirements.
It can be understood that, considering that the ventilation requirement of each room is different, in order to meet the independent ventilation requirement of each room, an air inlet valve 111 and an air inlet fan 112 are disposed on each air inlet pipe 110, and similarly, an air outlet valve 121 and an air outlet fan 122 are disposed on each air outlet pipe 120. When a certain room needs to be ventilated, the corresponding air inlet valve 111 and the corresponding air outlet valve 121 are opened, the corresponding air inlet fan 112 and the corresponding air outlet fan 122 are started, outdoor fresh air is driven by the air inlet fan 112 to be input into the room through the air outlet, and partial air in the room is pumped out from the air outlet through the air outlet fan 122, so that indoor and outdoor air exchange is realized.
It can be understood that the fresh air device has indoor and outdoor ventilation modes, and ventilation modes between rooms, and the like, in the indoor and outdoor ventilation modes, both the main air inlet valve 210 and the main air outlet valve 310 are opened, for example, if the first room needs ventilation, the air inlet valve 111 on the air inlet pipe 110 in the first room is opened and the air inlet fan 112 is started, and outdoor fresh air in the main air inlet pipe 200 is pumped into the room through the air inlet fan 112; meanwhile, the air outlet valve 121 on the air outlet pipe 120 is opened and the air outlet fan 122 is started, and part of indoor air is pumped into the main air outlet pipe 300 through the air outlet fan 122 and then discharged to the outside so as to achieve the purpose of air exchange. And if each room needs to be ventilated, the air inlet fan 112 and the air outlet fan 122 are started, so that the air quality in the room is improved through ventilation, and the comfort is improved. It should be understood that, in the ventilation process, when the ventilation volume demand is low, the main air outlet valve 310 may be closed, and the corresponding air outlet valve 121 and the air outlet fan 122 are also closed, so that only a small amount of fresh air is input, and the indoor air does not need to be exhausted, and the leakage of the door gap is relied on.
In a mode of exchanging air between rooms, referring to fig. 1, for example, a first room and a second room at the end need to be exchanged air, the main air inlet valve 210 and the main air outlet valve 310 are closed, the air inlet valve 111 and the air outlet valve 121 of the first room are both opened, the air inlet valve 111 and the air outlet valve 121 of the second room are also opened, the air inlet fan 112 and the air outlet fan 122 of the first room are simultaneously started, the air inlet fan 112 operates to draw air in the second room into the first room through the two air inlet pipes 110 and the main air inlet pipe 200, the air outlet fan 122 operates to draw air in the first room into the second room through the two air outlet pipes 120 and the main air outlet pipe 300, so that the first room and the second room can be exchanged heat and the temperature can be adjusted. Of course, the air inlet fan 112 and the air outlet fan 122 in the second room may also be simultaneously activated, and air exchange and heat exchange between the first room and the second room can also be achieved. The fresh air equipment has the heat and air exchange functions between the rooms at the indoor side, so that the temperature unevenness caused by the load difference between the rooms is reduced, the temperature regulation can be accelerated, and the energy consumption is reduced.
It can be understood that the fresh air device includes a fresh air blower 100, the fresh air blower 100 is usually installed inside a ceiling, the air inlet pipes 110 and the air outlet pipes 120 are also arranged inside the ceiling, the connection portion between the main air inlet pipe 200 and each air inlet pipe 110 is inside the fresh air blower 100, the connection portion between the main air outlet pipe 300 and each air outlet pipe 120 is also inside the fresh air blower 100, in view of convenience in installation and maintenance, all the air inlet valves 111 and all the air outlet valves 121 are integrated inside the fresh air blower 100, and after the fresh air blower 100 is installed, the air inlet pipes 110 and the air outlet pipes 120 are extended to each room, so that the operation is simplified.
It can be understood that, in view of convenience in installation and maintenance, the air inlet fan 112 and the air outlet fan 122 are integrated inside the new fan 100, and after the new fan 100 is installed, the air inlet pipe 110 and the air outlet pipe 120 are arranged, so that the operation is simplified.
Of course, the air inlet valve 111, the air outlet valve 121, the air inlet fan 112 and the air outlet fan 122 may be integrated into the new fan 100, and are assembled in advance to be conveniently installed in the ceiling.
It can be understood that the intake valve 111, the outlet valve 121, the main intake valve 210 and the main outlet valve 310 are all air volume adjusting valves. The air regulating valve is a common central air-conditioning end fitting in ventilation, air-conditioning and air purification projects of industrial plants or civil buildings, is generally used in air-conditioning systems and ventilation system pipelines, is used for regulating the air quantity of branch pipes, can also be used for mixing and regulating fresh air and return air, and can also be used for opening or cutting off pipelines. The main advantages of the air volume adjusting valve include flexible operation, low noise, small leakage (the sealed leakage is less than 0.5%), wide working temperature area, reliable structure, safety and convenience, etc. The air volume adjusting valve can reduce cost, control air volume more accurately and improve the operation stability of the fresh air equipment.
It is understood that the inlet valve 111, the outlet valve 121, the main inlet valve 210, and the main outlet valve 310 may also be implemented as a ventilation butterfly valve. The ventilation butterfly valve is widely applied to cold air or hot air pipelines of air conditioning systems and ventilation systems in the industries of chemical industry, building materials, power stations, glass and the like, is used as a gas medium flow control device, and can also be used for on-off control of low-pressure pipelines. The main advantages of the ventilation butterfly valve include compact structure, light weight, convenient installation, small flow resistance, large flow capacity and the like, can avoid the influence of high-temperature expansion, and is light and convenient to operate. The ventilation butterfly valve can also be electrically operated, and an actuating mechanism can be driven by a motor to enable the butterfly plate to freely rotate within a 90-degree range so as to achieve the purpose of opening and closing or regulating the medium flow. The ventilation butterfly valve is adopted, so that the cost can be reduced, the air quantity can be controlled more accurately, and the operation stability of the fresh air equipment is improved.
It is understood that the inlet fan 112 and the outlet fan 122 are axial fans. The axial flow fan is a fan with the airflow direction consistent with the axial direction of the impeller, is also called a local fan, is a fan commonly used in industry, is different from a common fan, is provided with a motor and fan blades in a cylinder, has a cylindrical shape, is used for local ventilation, is convenient to install, has obvious ventilation and air exchange effects, and can send air to a specified area. The fresh air device adopts an axial flow fan as the air inlet fan 112 and the air outlet fan 122, so that the pipeline is convenient to connect, and quick air exchange is realized.
It can be understood that the new air blower 100 has a controller (not shown), the controller is usually disposed inside the new air blower 100, the controller is electrically connected to the air inlet valve 111, the air outlet valve 121, the main air inlet valve 210, the main air outlet valve 310, the main air inlet valve 210 and the main air outlet valve 310, and the controller controls the opening and closing of the air inlet valve 111, the air outlet valve 121, the main air inlet valve 210, the main air outlet valve 310, the main air inlet valve 210 and the main air outlet valve 310, so as to raise the automation level and control more accurately.
It can be understood that the fresh air fan 100 is provided with a plurality of temperature sensors (not shown in the figures), the temperature sensors are also electrically connected to the controller, one temperature sensor is arranged in each room, the temperature sensors are used for detecting the temperature in the room, and then signals are fed back to the controller, and the controller selects the operation mode according to the temperature information.
It is understood that the fresh air device further includes a total heat exchanger (not shown), and the main air inlet pipe 200 and the main air outlet pipe 300 are both connected to the total heat exchanger. The total heat exchanger is generally a fresh air and exhaust air exchange device containing a total heat exchange core. The total heat exchanger is a high-efficiency and energy-saving heat recovery device, preheats or precools fresh air introduced into an air conditioning system by recovering waste heat in exhaust, reduces (or increases) the enthalpy value of the fresh air before the fresh air enters an indoor or a surface air cooler of an air conditioning unit for heat-moisture treatment, can effectively reduce the load of the air conditioning system, saves the energy consumption and the operating cost of the air conditioning system, effectively solves the contradiction between the improvement of the indoor air quality and the energy conservation of the air conditioner, and has an important role in the field of energy conservation of the air conditioning system. The total heat exchanger utilizes the exhaust air and the inlet fresh air to carry out heat-moisture exchange to recover energy, and the recovery efficiency can reach 70-90 percent. When the air conditioner runs in summer, the temperature and humidity of fresh air can be reduced, energy consumption of the air conditioning system is reduced through heat exchange, and the purpose of energy conservation is achieved.
The multi-split air conditioning system according to the second aspect of the present invention includes the fresh air device of the first aspect, the fresh air device has multiple modes of indoor and outdoor ventilation, mutual ventilation between rooms, and the like, and in the indoor and outdoor ventilation mode, each room needs ventilation, and then the respective air inlet fan 112 and the respective air outlet fan 122 are started, so that the air quality in the room is improved through ventilation, and the comfort is improved. Under the mode that the room was taken a breath each other, can realize two rooms each other take a breath, exchange the heat simultaneously, the temperature regulation slows down the temperature inhomogeneous that the load difference leads to between the room, can accelerate temperature regulation, reduces the energy consumption.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. Fresh air equipment, its characterized in that includes:
the air conditioner comprises N groups of air inlet pipes and air outlet pipes, wherein N is an integer greater than or equal to 2, each air inlet pipe is provided with an air inlet valve and an air inlet fan, and each air outlet pipe is provided with an air outlet valve and an air outlet fan;
the main air inlet pipe is communicated with the N air inlet pipes, and a main air inlet valve is arranged at the inlet end of the main air inlet pipe;
the main air outlet pipe is communicated with the N air outlet pipes, and a main air outlet valve is arranged at the outlet end of the main air outlet pipe.
2. The fresh air device as claimed in claim 1, further comprising a fresh air machine, wherein the N air inlet valves and the N air outlet valves are integrated inside the fresh air machine.
3. The fresh air device of claim 1 or 2, wherein the N inlet fans and the N outlet fans are integrated inside the fresh air fan.
4. The fresh air device as claimed in claim 1, wherein the inlet valve, the outlet valve, the main inlet valve and the main outlet valve are air volume adjusting valves.
5. The fresh air device as recited in claim 1, wherein the inlet valve, the outlet valve, the main inlet valve, and the main outlet valve are vent butterfly valves.
6. The fresh air device as claimed in claim 4 or 5, wherein the air inlet fan and the air outlet fan are axial fans.
7. The fresh air device as claimed in claim 2, wherein the fresh air machine is provided with a controller, and the air inlet valve, the air outlet valve, the air inlet fan, the air outlet fan, the main air inlet valve and the main air outlet valve are all electrically connected to the controller.
8. The fresh air device as claimed in claim 7, wherein the fresh air machine is provided with a temperature sensor, and the temperature sensor is electrically connected to the controller.
9. The fresh air device as claimed in claim 1, wherein the fresh air device has a total heat exchanger, and the main air inlet pipe and the main air outlet pipe are connected to the total heat exchanger.
10. A multi-split air conditioning system characterized by comprising the fresh air device as recited in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122734520.3U CN216346649U (en) | 2021-11-09 | 2021-11-09 | Fresh air equipment and multi-split air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122734520.3U CN216346649U (en) | 2021-11-09 | 2021-11-09 | Fresh air equipment and multi-split air conditioning system |
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| CN216346649U true CN216346649U (en) | 2022-04-19 |
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| CN202122734520.3U Active CN216346649U (en) | 2021-11-09 | 2021-11-09 | Fresh air equipment and multi-split air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023246900A1 (en) * | 2022-06-22 | 2023-12-28 | 美的集团武汉暖通设备有限公司 | Fresh air system control method, fresh air system, and air conditioner |
-
2021
- 2021-11-09 CN CN202122734520.3U patent/CN216346649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023246900A1 (en) * | 2022-06-22 | 2023-12-28 | 美的集团武汉暖通设备有限公司 | Fresh air system control method, fresh air system, and air conditioner |
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