Variable static pressure air conditioner air volume control structure

Abstract

The utility model discloses a variable static pressure air conditioner air volume control structure which comprises a frequency conversion device, a main pipe and a plurality of branch air pipes, the frequency conversion device is connected to one end of the main pipe, the other end of the main pipe is closed, the branch air pipes are connected to the main pipe, branch static pressure setting devices are correspondingly arranged on the branch air pipes, and the branch static pressure setting devices are arranged on the main pipe. The air exhaust pipe is connected to the air distribution pipe, the outlet air valve is connected to the air exhaust pipe, and a main static pressure setting device is arranged on the main pipe. According to the utility model, the air-conditioning system in the building is divided into a plurality of independent and interrelated control areas. Each area can be independently adjusted according to the specific load condition of the area, so that the temperature requirement is more accurately met, and when the sunlight influence does not exist, the whole area can be adjusted to meet the whole requirement.

Description

Technical Field

[0001] The utility model belongs to the technical field of air volume control of air conditioners, and in particular relates to a variable static pressure air volume control structure of an air conditioner. Background Art

[0002] The variable air volume air conditioning system commonly used in the market currently adopts a control logic of constant static pressure. It is unable to adjust the spatial temperature of local areas in time according to the different sunlight levels in the office complex, and meet people's different demands for comfort.

[0003] If the control logic of multi-branch duct static pressure control points is adopted, the problem of uneven sunlight load on the east and west sides of the building can be solved to a certain extent. However, due to the high requirements for static pressure judgment points and the inability to take into account the short-term changes of people in the area at the same time, the timeliness of the space temperature requirements cannot be achieved. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the space temperature of a local area cannot be adjusted in time according to the different sunshine intensity of an office complex and realize people's demand for different comfort levels. If the control logic of the static pressure control point of a multi-branch air duct is adopted, the problem of uneven sunshine load on the east and west sides of the building can be solved to a certain extent. However, due to the high requirements for the static pressure judgment point and the inability to take into account the short-term changes of people in the area and the timeliness of the space temperature requirements, a variable static pressure air conditioning air volume control structure is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a variable static pressure air conditioning air volume control structure, including a frequency conversion device, a main pipe and a plurality of branch air pipes, the frequency conversion device is connected to one end of the main pipe, the other end of the main pipe is closed, a plurality of branch air pipes are connected to the main pipe, and a plurality of branch air pipes are correspondingly provided with branch static pressure setting devices, the exhaust pipe is connected to the branch air pipe, the outlet air valve is connected to the exhaust pipe, and the main pipe is provided with a main static pressure setting device.

[0006] As a further description of the above technical solution:

[0007] The main static pressure setting device is electrically connected to an occupancy sensor, and the occupancy sensor is embedded in the main static pressure setting device.

[0008] As a further description of the above technical solution:

[0009] The main pipe is provided with a static pressure box, and an adjustment partition is provided in the static pressure box.

[0010] As a further description of the above technical solution:

[0011] The plurality of partial static pressure setting devices are independent of each other, and a data acquisition device is arranged on the partial static pressure setting device.

[0012] As a further description of the above technical solution:

[0013] The occupancy sensor is an infrared sensor and an acoustic wave sensor.

[0014] As a further description of the above technical solution:

[0015] A temperature sensor is arranged at the side end of the outlet air valve.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] 1. In the utility model, the control structure can make the static pressure box on the main pipe and the main static pressure setting device cooperate with each other, by adjusting the air return speed in the main pipe, and then evenly dividing it to each branch duct, to ensure that the indoor temperature is uniform when there is no sunshine, and the air volume can be adjusted according to demand.

[0018] 2. In the utility model, when there is sunshine and the distribution is uneven, the control structure can also close the static pressure box and the main static pressure setting device, and directly pass the wind into several branch air ducts. Each branch static pressure setting device independently controls each branch air duct, and cooperates with the temperature sensor and the branch static pressure setting device at its side end to adjust the air supply volume according to the change of indoor load, and can also automatically adjust the indoor temperature according to personal comfort requirements, thereby realizing independent control of each air-conditioning area, avoiding the occurrence of overcooling and overheating, and improving comfort.

[0019] 3. In the present invention, a personnel sensing system, such as an infrared sensor or an occupancy sensor, is introduced to detect the activities of personnel in the area. When the density of personnel changes, the system can quickly adjust the air-conditioning parameters to meet people's needs for space temperature.

[0020] 4. In the present invention, the air conditioning system in the building is divided into a plurality of independent but interconnected control areas. Each area can be independently adjusted according to its specific load conditions, so as to more accurately meet the temperature requirements. When there is no sunshine influence, it can also be adjusted as a whole to meet the overall needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The structure diagram of a variable static pressure air conditioning air volume control structure.

[0023] Figure 2 The utility model discloses a digital control circuit diagram of a variable static pressure air conditioning air volume control structure.

[0024] Legend:

[0025] 1- frequency conversion device; 2- main pipe; 3- branch air duct; 4- branch static pressure setting device; 5- exhaust duct; 6- outlet air valve; 7- outlet air valve; 8- main static pressure setting device; 9- static pressure box; 10- occupancy sensor; 11- temperature sensor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the embodiments of the present utility model, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See also Figure 1-2 The utility model provides a technical solution: a variable static pressure air conditioner air volume control structure, comprising a frequency conversion device 1, a main pipe 2 and a plurality of branch air pipes 3, the frequency conversion device 1 is connected to one end of the main pipe 2, the other end of the main pipe 2 is closed, a plurality of branch air pipes 3 are connected to the main pipe 2, a plurality of branch air pipes 3 are correspondingly provided with branch static pressure setting devices 4, the exhaust pipe 5 is connected to the branch air pipe 3, the outlet air valve 6 is connected to the exhaust pipe 5, and the main pipe 2 is provided with a main static pressure setting device 7.

[0033] The main static pressure setting device 7 is connected to the occupancy sensor 9, and the occupancy sensor is embedded in the main static pressure setting device to form a compact whole. The integrated design can reduce the size and complexity of the device and improve the overall aesthetics and ease of use.

[0034] The main pipe 2 is provided with a static pressure box 8, and an adjustment baffle is provided in the static pressure box 8. The opening size of the static pressure box or the position of the internal baffle is automatically adjusted according to the airflow change in the main pipe to maintain a constant static pressure.

[0035] The plurality of sub-static pressure setting devices 4 are independent of each other, and a data acquisition device is provided on the sub-static pressure setting device. The data acquisition device is installed on each sub-static pressure setting device to collect the operation data of the device in real time, such as static pressure value, humidity, etc.

[0036] The occupancy sensor 9 is an infrared sensor and an acoustic sensor, and can judge the indoor crowd density by motion or sound reflection.

[0037] The side end of the outlet air valve 6 is provided with a temperature sensor 10 to monitor the indoor temperature and adjust it in time.

[0038] Working principle: The control structure can make the static pressure box and the main static pressure setting device on the main pipe cooperate with each other, by adjusting the air return speed in the main pipe, and then evenly distribute it to each branch air duct, to ensure that the indoor temperature is uniform when there is no sunshine, and the air output can be adjusted according to demand. At the same time, when there is sunshine and the distribution is uneven, the control structure can also close the static pressure box and the main static pressure setting device, and directly pass the wind into several branch air ducts. Each branch static pressure setting device independently controls each branch air duct, and cooperates with the temperature sensor on its side end and the branch static pressure setting device to adjust the air supply volume according to the change of indoor load, and can also automatically adjust the indoor temperature according to personal comfort requirements, so as to realize independent control of each air-conditioning area, avoid the occurrence of overcooling and overheating, and improve comfort.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A variable static pressure air conditioning air volume control structure, characterized in that: It includes a frequency conversion device, a main pipe and several branch air pipes, the frequency conversion device is connected to one end of the main pipe, the other end of the main pipe is closed, several branch air pipes are connected to the main pipe, several branch air pipes are correspondingly provided with branch static pressure setting devices, an exhaust pipe is connected to the branch air pipe, an outlet air valve is connected to the exhaust pipe, and the main pipe is provided with a main static pressure setting device.

2. A variable static pressure air conditioning air volume control structure according to claim 1, characterized in that: The main static pressure setting device is electrically connected to an occupancy sensor, and the occupancy sensor is embedded in the main static pressure setting device.

3. A variable static pressure air conditioning air volume control structure according to claim 2, characterized in that: The main pipe is provided with a static pressure box, and an adjustment partition is provided in the static pressure box.

4. The variable static pressure air conditioning air volume control structure according to claim 1, characterized in that: The plurality of partial static pressure setting devices are independent of each other, and a data acquisition device is arranged on the partial static pressure setting device.

5. The variable static pressure air conditioning air volume control structure according to claim 2, characterized in that: The occupancy sensor is an infrared sensor and an acoustic wave sensor.

6. A variable static pressure air conditioning air volume control structure according to claim 1, characterized in that , a temperature sensor is arranged at the side end of the outlet air valve.

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