Inlet air measuring device of variable air volume air conditioning system

Abstract

The utility model discloses an air inlet measuring device of a variable air volume air conditioning system, which relates to the technical field of variable air volume air conditioners, and comprises an air inlet pipe and an auxiliary component, the rear end of the air inlet pipe is connected with a mounting disc, and the auxiliary component used for concentrating air volume and reducing uneven distribution is arranged in the air inlet pipe. The auxiliary assembly comprises a transverse plate, a transverse air inducing plate, a vertical plate and a vertical air inducing plate, the transverse air inducing plate is connected to the end of the transverse plate, the vertical plate is arranged behind the transverse plate, the vertical air inducing plate is connected to the end of the vertical plate, and a mounting cover is mounted at the front end of the air inlet pipe. According to the air inlet measuring device of the variable air volume air conditioning system, the transverse air inducing plate is obliquely connected with the transverse plate and the pipe wall of the air inlet pipe, air entering the air inlet pipe is intensively guided, deviation of measured data caused by uneven distribution of the air volume is reduced, the vertical plate and the vertical air inducing plate further guide and concentrate the air volume on the rear side of the transverse plate, and the measurement accuracy is improved. Therefore, the air volume is intensively detected again, and the follow-up accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of variable air volume air conditioners, in particular to an air intake measuring device for a variable air volume air conditioner system. Background Art

[0002] In the prior art, the variable air volume system is an advanced air conditioning system compared to the full air fixed wind system and the fresh air plus fan coil system. It has the advantages of energy saving, meeting the requirements of different temperature control in different rooms, good indoor air quality, and adapting to the requirements of space usage changes. Therefore, it is used in more and more buildings, such as the China Petroleum Building, the National Power Dispatching Center in Beijing, and the China Insurance Building in Shanghai. The variable air volume air conditioning system is adopted. The air inlet channel of the air inlet duct in the prior art is fixed, and the ventilation cross-sectional area of ​​the air inlet channel is fixed, but the air inlet volume is changing.

[0003] However, in the existing variable air volume air conditioning system, the air volume of the air intake measurement device is easily uneven when measuring the air intake in the air intake duct, resulting in deviations in the air intake volume measurement results.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an air intake measuring device for a variable air volume air conditioning system is provided. Utility Model Content

[0005] The utility model aims to provide an air intake measuring device for a variable air volume air conditioning system to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air intake measuring device for a variable air volume air conditioning system, comprising an air intake duct and an auxiliary component, the rear end of the air intake duct is connected with a mounting plate, the auxiliary component for concentrating the air volume to reduce uneven distribution is arranged inside the air intake duct, and the auxiliary component comprises a horizontal plate, a horizontal air induced draft plate, a vertical plate and a vertical air induced draft plate, the end of the horizontal plate is connected with the horizontal air induced draft plate, and a vertical plate is arranged behind the horizontal plate, and the end of the vertical plate is connected with the vertical air induced draft plate.

[0007] Furthermore, the horizontal plates and the horizontal air induction plates are arranged in two groups in a ring shape about the center point of the air inlet pipe, and the horizontal plates and the vertical plates are distributed vertically.

[0008] Furthermore, a mounting cover is installed at the front end of the air inlet pipe, and a filter screen is arranged inside the mounting cover.

[0009] Furthermore, an adjustment hole is provided on the surface of the transverse plate, and the transverse plate and the adjustment hole are an integrated structure.

[0010] Furthermore, a detection component for detecting the air intake volume is arranged inside the adjustment hole, and the number of the detection components is set to two groups.

[0011] Furthermore, the detection component includes an electric push rod and a connection plate, and the connection plate is installed at the output end of the electric push rod.

[0012] Furthermore, the detection assembly also includes a mounting tube and a differential pressure sensor. The mounting tube is mounted on the surface of the adapter plate, and the differential pressure sensor is disposed on the surface of the mounting tube.

[0013] Furthermore, a gasket is connected to the end of the mounting tube, and the size of the gasket is consistent with the size of the adjustment hole.

[0014] The utility model provides an air intake measuring device for a variable air volume air conditioning system, which has the following beneficial effects:

[0015] 1. The utility model connects the horizontal plate and the wall of the air inlet duct by an oblique horizontal air induction plate, which plays a role in centrally guiding the wind entering the air inlet duct, reducing the deviation of the measurement data caused by uneven distribution of air volume. The vertical plate and the vertical air induction plate further guide and concentrate the air volume on the rear side of the horizontal plate, so that the air volume is detected again in a centralized manner, increasing the subsequent accuracy.

[0016] 2. The utility model uses the adjustment hole to detect the installation and adjustment of the assembly. The electric push rod controls the position adjustment of the connecting plate, the mounting tube and the pressure difference sensor by telescopic control, so that the pressure difference sensor is moved to the position where the air volume flows when the air inlet device needs to be measured, thereby increasing the service life. The connecting plate and the mounting tube are used for the installation of the pressure difference sensor and the installation of the line. The gasket acts as a buffer at the top of the mounting tube and also seals the adjustment hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an air intake measurement device for a variable air volume air conditioning system of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of auxiliary components of an air intake measurement device for a variable air volume air conditioning system of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the structure of a detection component of an air intake measurement device of a variable air volume air conditioning system.

[0020] In the figure: 1. air inlet duct; 2. mounting plate; 3. mounting cover; 4. filter; 5. auxiliary components; 501. horizontal plate; 502. horizontal air induction plate; 503. vertical plate; 504. vertical air induction plate; 6. adjustment hole; 7. detection component; 701. electric push rod; 702. connecting plate; 703. mounting tube; 704. differential pressure sensor; 8. gasket. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1 and Figure 2 As shown, an air intake measuring device for a variable air volume air conditioning system includes an air intake duct 1 and an auxiliary component 5. The rear end of the air intake duct 1 is connected to a mounting plate 2. The auxiliary component 5 for concentrating the air volume and reducing uneven distribution is arranged inside the air intake duct 1, and the auxiliary component 5 includes a horizontal plate 501, a horizontal air induction plate 502, a vertical plate 503 and a vertical air induction plate 504. The end of the horizontal plate 501 is connected to the horizontal air induction plate 502, and the horizontal air induction plate 502 is obliquely connected to the horizontal plate 501 and the wall of the air intake duct 1, so as to guide the air entering the air intake duct 1 and reduce the deviation of the measurement data caused by uneven distribution of the air volume. A vertical plate is arranged behind the horizontal plate 501. 503, the end of the vertical plate 503 is connected with a vertical air induced plate 504, and two groups of horizontal plates 501 and horizontal air induced plates 502 are arranged in a ring about the center point of the air inlet pipe 1, and the horizontal plate 501 and the vertical plate 503 are vertically distributed, and the vertical plate 503 and the vertical air induced plates 504 further guide and concentrate the air volume on the rear side of the horizontal plate 501, so that the air volume is once again concentrated for detection, thereby increasing subsequent accuracy, a mounting cover 3 is installed at the front end of the air inlet pipe 1, and a filter net 4 is arranged inside the mounting cover 3, and an adjustment hole 6 is opened on the surface of the horizontal plate 501, and the horizontal plate 501 and the adjustment hole 6 are an integrated structure, and the adjustment hole 6 is used for the installation and adjustment of the detection component 7.

[0023] like Figure 3 As shown, a detection component 7 for detecting the air intake volume is arranged inside the adjustment hole 6, and the number of the detection components 7 is arranged in two groups, the detection component 7 comprises an electric push rod 701 and a connecting plate 702, and the connecting plate 702 is installed at the output end of the electric push rod 701, the electric push rod 701 controls the position adjustment of the connecting plate 702, the mounting tube 703 and the pressure difference sensor 704 by telescopic control, so that the pressure difference sensor 704 is moved to the position where the air volume flows when the air intake device needs to be measured, thereby increasing the service life, the detection component 7 also comprises a mounting tube 703 and a pressure difference sensor 704, the surface of the connecting plate 702 is installed with the mounting tube 703, the connecting plate 702 and the mounting tube 703 are used for the installation of the pressure difference sensor 704 and the installation of the line, and the surface of the mounting tube 703 is provided with the pressure difference sensor 704, the end of the mounting tube 703 is connected with a gasket 8, and the size of the gasket 8 is consistent with the size of the adjustment hole 6, the gasket 8 acts as a buffer at the top of the mounting tube 703 and also seals the adjustment hole 6.

[0024] In summary, the air intake measurement device of the variable air volume air conditioning system firstly Figure 1-Figure 3In the structure shown in the figure, the air inlet pipe 1 on the variable air volume air conditioning system allows the air volume to enter, and the filter screen 4 filters the dust in the wind when entering. The horizontal air guide plate 502 is connected obliquely to the horizontal plate 501 and the wall of the air inlet pipe 1, and plays a role in centrally guiding the air entering the air inlet pipe 1, thereby reducing the deviation of the measurement data caused by the uneven distribution of the air volume. During the detection, the electric push rod 701 is extended to make the connecting plate 702, the installation pipe 703 and the pressure difference sensor 704 be pushed until the gasket 8 at the end of the installation pipe 703 contacts the horizontal plate 50 on the other side. 1, at this time, the pressure difference between the two sensors can be measured by the pressure difference sensor 704 to calculate the wind flow, and then the vertical plate 503 and the vertical air induced plate 504 further guide and concentrate the wind volume on the rear side of the horizontal plate 501, so that the wind volume is once again concentrated and detected, thereby increasing the subsequent accuracy. After the measurement, the electric push rod 701 retracts so that the pressure difference sensor 704 is recovered to the rear side of the horizontal plate 501 and the vertical plate 503, thereby increasing the service life. At this time, the gasket 8 plays a role of buffering at the top of the mounting tube 703 and can seal the adjusting hole 6.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An air intake measuring device for a variable air volume air conditioning system, comprising an air intake duct (1) and an auxiliary component (5), characterized in that: The rear end of the air inlet duct (1) is connected to a mounting plate (2); the auxiliary component (5) for concentrating air volume and reducing uneven distribution is arranged inside the air inlet duct (1); and the auxiliary component (5) comprises a horizontal plate (501), a horizontal air induction plate (502), a vertical plate (503) and a vertical air induction plate (504); the end of the horizontal plate (501) is connected to the horizontal air induction plate (502), and a vertical plate (503) is arranged behind the horizontal plate (501); and the end of the vertical plate (503) is connected to the vertical air induction plate (504).

2. The air intake measuring device of a variable air volume air conditioning system according to claim 1, characterized in that: The horizontal plates (501) and the horizontal air induction plates (502) are arranged in two groups in a ring shape about the center point of the air inlet pipe (1), and the horizontal plates (501) and the vertical plates (503) are distributed vertically.

3. The air intake measuring device of a variable air volume air conditioning system according to claim 1, characterized in that: A mounting cover (3) is installed at the front end of the air inlet pipe (1), and a filter screen (4) is arranged inside the mounting cover (3).

4. The air intake measuring device of a variable air volume air conditioning system according to claim 1, characterized in that: An adjustment hole (6) is provided on the surface of the transverse plate (501), and the transverse plate (501) and the adjustment hole (6) are an integrated structure.

5. The air intake measuring device of a variable air volume air conditioning system according to claim 4, characterized in that: A detection component (7) for detecting the amount of air intake is arranged inside the adjustment hole (6), and the number of the detection components (7) is set to two groups.

6. The air intake measuring device of a variable air volume air conditioning system according to claim 5, characterized in that: The detection assembly (7) comprises an electric push rod (701) and a connection plate (702), and the connection plate (702) is installed at the output end of the electric push rod (701).

7. The air intake measuring device of a variable air volume air conditioning system according to claim 6, characterized in that: The detection assembly (7) further comprises a mounting tube (703) and a differential pressure sensor (704); the mounting tube (703) is mounted on the surface of the adapter plate (702), and the differential pressure sensor (704) is arranged on the surface of the mounting tube (703).

8. The air intake measuring device of a variable air volume air conditioning system according to claim 7, characterized in that: A gasket (8) is connected to the end of the mounting tube (703), and the size of the gasket (8) is consistent with the size of the adjustment hole (6).

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