Fresh air opening device capable of automatically adjusting air volume

Abstract

The utility model discloses a fresh air opening device capable of automatically adjusting air volume. The fresh air opening device comprises a fresh air opening shell, a rectangular short pipe, an air inlet, an air outlet and a diffuser plate. An air inlet and an air outlet are formed in the two ends of the fresh air opening shell respectively, a rectangular short pipe is arranged in the middle of the fresh air opening shell, the fresh air opening shell is of a hollow structure, the rectangular short pipe is connected with the air inlet and the air outlet to form an air channel, a flow diffusion plate is arranged at the air outlet of the fresh air opening shell, and an opening is formed in the flow diffusion plate. According to the utility model, the diffuser plate and the control panel are arranged to receive and display parameters such as CO2 concentration, PM2.5 and the like of indoor measuring points, and the opening degree of the electric air volume adjusting valve is automatically controlled according to the CO2 concentration, so that the air volume of the air port is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation, in particular to a new air outlet device that automatically adjusts air volume. Background Art

[0002] With the progress of modern society, the application of air conditioning systems, the use of various synthetic building materials, the popularization of modern office equipment, the improvement of building airtightness, and the reduction of fresh air volume as much as possible for energy saving, the concentration of indoor pollutants such as CO2, PM2.5, and toxic gases has continued to increase. The fresh air system is an air purification system that absorbs outdoor air into the room after purification.

[0003] In the design of fresh air systems in current projects, the design is usually carried out according to the room fresh air volume standard and personnel density, and the system pipe network calculation and equipment selection are carried out according to the total fresh air volume required by the room. Combined with the actual operation situation, the room occupancy rate usually does not reach the personnel density under the design conditions, which leads to the large design of system equipment and pipe network and increased investment. At the same time, the air volume of each room is usually adjusted by setting a manual regulating valve on the terminal branch pipe. Once the fresh air volume of each room is adjusted, it will not change. However, in actual operation, the flow of personnel in the room causes the required fresh air volume to change. This conventional adjustment method cannot adapt to the change of the fresh air volume required by the personnel.

[0004] Therefore, this patent provides a fresh air inlet device that automatically adjusts the air volume, which can automatically adjust the valve opening according to the changes in the indoor CO2 concentration, thereby realizing the on-demand supply of fresh air in the room. At the same time, it can also reduce the design scale of the fresh air system and reduce the workload during the debugging period. Utility Model Content

[0005] Based on the technical problems existing in the background technology, the utility model proposes a new air outlet device that automatically adjusts the air volume. The utility model is equipped with a diffuser and a control panel to receive and display parameters such as CO2 concentration and PM2.5 at indoor measuring points, and automatically controls the opening of the electric air volume regulating valve according to the CO2 concentration, thereby adjusting the air volume of the air outlet.

[0006] Compared with the prior art, the technical solution of the utility model is:

[0007] A fresh air inlet device that automatically adjusts the air volume comprises a fresh air inlet shell, a rectangular short tube, an air inlet, an air outlet, and a diffuser plate; an air inlet and an air outlet are respectively arranged at two ends of the fresh air inlet shell, the middle portion of the fresh air inlet shell is a rectangular short tube, the fresh air inlet shell is a hollow structure, the rectangular short tube connects the air inlet and the air outlet to form an air passage, a diffuser plate is arranged at the air outlet of the fresh air inlet shell, and an opening is arranged on the diffuser plate.

[0008] Preferably, the lower end surface of the diffuser plate is provided with a clamping foot, the lower end surface of the fresh air outlet housing near the air outlet is provided with a protrusion clamping connection, and the diffuser plate is fixedly connected to the protrusion on the fresh air outlet through the clamping foot.

[0009] Preferably, a control panel is provided on the upper surface of the diffuser plate, and the control panel is fixedly connected to the diffuser plate by screws.

[0010] Preferably, an air outlet louver is provided at the center of the diffuser plate.

[0011] Preferably, a groove is provided on one side of the middle portion of the rectangular short tube, and an electric air volume regulating valve is embedded in the groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model is provided with a control panel, which can receive and display parameters such as CO2 concentration and PM2.5 at indoor measuring points, and convert the CO2 concentration into a control modulus output to the electric air volume regulating valve, thereby adjusting the air volume at the air outlet.

[0014] (2) The utility model has a simple structure and is easy to install. It can reduce the design scale of the fresh air system and the workload during the design and commissioning period of the fresh air system. It can automatically adjust the fresh air volume according to changes in population density, indoor particulate matter, etc., thereby ensuring good indoor air quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of a new air inlet device for automatically adjusting the air volume.

[0017] In the figure: 1-fresh air outlet housing; 2-rectangular short tube; 3-electric air volume control valve; 4-diffuser plate; 5-control panel; 6-air outlet shutter. DETAILED DESCRIPTION

[0018] 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 in 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.

[0019] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do 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 therefore cannot be understood as a limitation on the present invention.

[0020] A fresh air inlet device for automatically adjusting air volume, characterized in that it comprises a fresh air inlet shell 1, a rectangular short tube 2, an air inlet, an air outlet, and a diffuser plate 4; the fresh air inlet and the air outlet are respectively arranged at both ends of the fresh air inlet shell 1, the middle part of the fresh air inlet shell 1 is a rectangular short tube 2, the fresh air inlet shell 1 is a hollow structure, the rectangular short tube 2 connects the air inlet and the air outlet to form an air passage, the fresh air inlet shell 1 is provided with a diffuser plate 4 at the air outlet, and the diffuser plate 4 is provided with an opening.

[0021] Specifically, the lower end surface of the diffuser plate 4 is provided with a clamping foot, and the lower end surface of the fresh air outlet housing 1 near the air outlet is provided with a protrusion clamping connection, and the diffuser plate 4 is fixedly connected with the protrusion on the fresh air outlet 1 through the clamping foot.

[0022] Specifically, a control panel 5 is disposed on the upper surface of the diffuser plate 4 , and the control panel 5 is fixedly connected to the diffuser plate 4 by screws.

[0023] Specifically, an air outlet louver 6 is arranged at the center of the diffuser plate 4 .

[0024] Specifically, a groove is provided on one side of the middle portion of the rectangular short tube 2, and an electric air volume regulating valve 3 is embedded in the groove.

[0025] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A new air inlet device for automatically adjusting air volume, characterized in that: The invention comprises a fresh air outlet housing (1), a rectangular short tube (2), an air inlet, an air outlet, and a diffuser plate (4); the fresh air outlet housing (1) is provided with an air inlet and an air outlet at two ends thereof, the middle portion of the fresh air outlet housing (1) is a rectangular short tube (2); the fresh air outlet housing (1) is a hollow structure; the rectangular short tube (2) connects the air inlet and the air outlet to form an air passage; the fresh air outlet housing (1) is provided with a diffuser plate (4), and the diffuser plate (4) is provided with an opening; The diffuser plate (4) is provided with a clamping foot on its lower end surface, and a convex clamping block is provided on the lower end surface of the fresh air outlet housing (1) near the air outlet, and the diffuser plate (4) is fixedly connected to the convex clamping block on the fresh air outlet housing (1) via the clamping foot; A control panel (5) is provided on the upper surface of the diffuser plate (4), and the control panel (5) is fixedly connected to the diffuser plate (4) by means of screws.

2. A fresh air inlet device for automatically adjusting air volume according to claim 1, characterized in that: An air outlet louver (6) is arranged at the center of the diffuser plate (4).

3. A fresh air inlet device for automatically adjusting air volume according to claim 1, characterized in that: A groove is provided on one side of the middle portion of the rectangular short tube (2), and an electric air volume regulating valve (3) is embedded in the groove.

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