Intelligent variable air volume efficient tuyere

By using an airflow balancing device and an intelligent control system, the problem of decreased airflow caused by increased filter resistance is solved, achieving stable airflow and clean air, making it suitable for cleanroom air conditioning systems.

CN223896226UActive Publication Date: 2026-02-10TROX AIR CONDITIONING COMPONENTS (SUZHOU) CO LTD
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Patent Information

Application Number
CN202423319275.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-02-10
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The filters of existing high-efficiency air vents experience increased resistance and reduced airflow after prolonged use due to dust and other factors, failing to meet usage requirements.

Method used

An airflow balancing device, including valve plates, air pressure sensors, and actuators, is adopted to automatically adjust the valve plate opening to maintain stable airflow. Combined with an intelligent control box and filter pressure measuring components, the filter status is monitored and controlled in real time, and timely alarms and maintenance are provided. Seals and leak detection tubes are installed to ensure airflow cleanliness and sealing.

Benefits of technology

It achieves stable airflow by automatically adjusting the valve opening when the filter resistance increases, ensuring airflow cleanliness and sealing, facilitating maintenance, and meeting the needs of long-term use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of efficient purification air ports, in particular to an intelligent variable air volume efficient air port which comprises a box body, an air inlet and an air outlet are formed in the box body, a filtering assembly is arranged in the box body, and an air volume balancing device is arranged at the air inlet; the air volume balancing device comprises a valve plate, an air pressure detection sensor used for detecting air pressure and an actuator used for adjusting the opening state of the valve plate according to the numerical value of the air pressure detection sensor. And an air outlet panel is arranged at the air outlet. The air conditioner has the effect that the air outlet amount can still meet the use requirements of people after being used for a long time.
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Description

Technical Field

[0001] This application relates to the technical field of high-efficiency air vents, and in particular to a smart variable air volume high-efficiency air vent. Background Technology

[0002] High-efficiency purification air outlets, also known as air supply outlets, purification air outlets, or high-efficiency filter boxes, are mainly used for filtration of terminal air in cleanroom air conditioning unit air supply systems. They are suitable for terminal filtration in air filtration systems requiring high cleanliness, such as those used in electronics, semiconductors, food, biopharmaceuticals, and hospitals.

[0003] Previously, our company developed an air conditioning terminal device with a filter, including a square box with an air vent at the bottom and an air duct connection port on the box. Inside the box, directly above the air vent, is a filter and a clamping device for fixing the filter. The clamping device includes a nut at the bottom of the filter to hold and fix the filter element, and hemispherical protrusions on both sides inside the box corresponding to the filter. A related patent has been applied for, patent publication number: CN2529122Y.

[0004] Regarding the aforementioned technologies, the inventors discovered that after prolonged use, the filter's resistance increases due to dust and other factors, leading to a decrease in airflow and failing to meet the user's needs. Utility Model Content

[0005] To address the aforementioned technical issues, this application provides a smart variable air volume high-efficiency air outlet, which has the advantage that the air volume can still meet the needs of personnel even after long-term use.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A smart variable air volume high-efficiency air outlet includes a housing, on which an air inlet and an air outlet are provided, a filter assembly is provided inside the housing, and an air volume balancing device is provided at the air inlet.

[0008] The air volume balancing device includes a valve plate, an air pressure detection sensor for detecting air pressure, and an actuator for adjusting the opening state of the valve plate according to the value of the air pressure detection sensor.

[0009] An air outlet panel is provided at the air outlet.

[0010] To achieve the above technical solution, the airflow processed by the air handling unit enters through the air inlet, is further filtered by the filter assembly, and is discharged from the air outlet, thereby ensuring the cleanliness of the airflow delivered into the room. When the resistance of the filter assembly increases, resulting in increased pressure loss and reduced airflow, the valve opening can be increased by controlling the actuator, thereby reducing the valve resistance and maintaining the overall pressure loss unchanged.

[0011] As a preferred embodiment of this application, the housing is provided with an intelligent control box, and the filter assembly is provided with filter pressure measuring elements on both the upper and lower sides. The filter pressure measuring elements and the actuator are electrically connected to the intelligent control box, and the intelligent control box controls the operation of the actuator based on the pressure difference between the two filter pressure measuring elements.

[0012] To achieve the above technical solution, when the pressure measuring element of the filter detects that the pressure difference between the front and back sides of the filter assembly is too large, the intelligent control box can issue an alarm to remind maintenance personnel to repair or replace the filter assembly.

[0013] As a preferred embodiment of this application, an air inlet pipe extending into the housing is provided at the air inlet, and the air volume balancing device is disposed inside the air inlet pipe.

[0014] To achieve the above technical solution, the air volume balancing device is installed inside the air intake pipe so that the entire high-efficiency air outlet space is not too large, thus ensuring applicability.

[0015] As a preferred embodiment of this application, a sealing element is provided between the filter assembly and the housing.

[0016] The above technical solution ensures that all airflow passes through the filtration components, thereby guaranteeing the cleanliness of the fresh air and meeting the needs of users.

[0017] As a preferred embodiment of this application, the sealing element includes a filter sealing strip disposed on the top of the filter assembly, and a sealing plate disposed on the housing for pressing against the filter sealing strip.

[0018] To achieve the above technical solution, when the filter assembly is screwed and fixed inside the housing, the filter sealing strip assembly at the top of the filter assembly is pressed against the sealing plate, thereby achieving a seal.

[0019] As a preferred embodiment of this application, the sealing plate includes an inner plate and an outer plate, with a gap between the inner plate and the outer plate, forming a leak detection groove between the inner plate and the outer plate, and a leak detection pipe communicating with the leak detection groove is provided on the outer plate.

[0020] The above technical solution enables the leakage of the seal to be directly detected through the leak detection tube to determine whether it meets the sealing requirements, thereby facilitating subsequent acceptance and maintenance.

[0021] As a preferred embodiment of this application, the air outlet panel is provided with a plurality of radially arranged air outlet slots.

[0022] The above technical solution achieves the following: the air outlet panel serves to shield and protect the internal components of the housing, as well as provide an aesthetic effect, while the air outlet duct ensures air outlet efficiency.

[0023] As a preferred embodiment of this application, an aerosol detector is provided at the air inlet.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. After the air is processed by the air handling unit, it enters through the air inlet, is further filtered by the filter components, and is discharged from the air outlet, thus ensuring the cleanliness of the air supplied to the room. When the filter resistance increases, resulting in increased filter pressure loss and reduced air volume, the valve opening can be increased by controlling the actuator, thereby reducing the valve resistance, maintaining the overall pressure loss unchanged, and thus maintaining the air volume unchanged.

[0026] 2. The air volume balancing device is installed inside the air intake pipe to ensure that the entire high-efficiency air outlet space is not too large, thus guaranteeing applicability;

[0027] 3. The leakage of the seal can be directly detected through the leak detection tube to determine whether it meets the sealing requirements, which facilitates subsequent acceptance and maintenance. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0030] Figure 2 This is a side view of an embodiment of this application.

[0031] Figure 3 yes Figure 2 Sectional view at point AA.

[0032] Figure 4 yes Figure 3 Enlarged view at point A.

[0033] Figure 5 This is a schematic diagram of the air outlet panel in an embodiment of this application.

[0034] Reference numerals: 1. Housing; 11. Air inlet pipe; 2. Air inlet; 3. Air outlet; 4. Filter assembly; 5. Air volume balancing device; 51. Valve plate; 52. Actuator; 53. Air pressure sensor; 6. Air outlet panel; 61. Air outlet slot; 7. Intelligent control box; 8. Filter pressure measuring element; 9. Seal; 91. Filter sealing strip; 92. Inner panel; 93. Outer panel; 94. Leak detection slot; 95. Leak detection tube. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1 to 5 This application will be described in further detail.

[0036] This application discloses a smart variable air volume (VAV) high-efficiency air outlet. (Refer to...) Figure 1 The intelligent variable air volume high-efficiency air outlet includes a housing 1, which has an air inlet 2 and an air outlet 3. A filter assembly 4 is installed inside the housing 1. That is, the airflow treated by the air handling unit enters through the air inlet 2, is further filtered by the filter assembly 4, and is discharged from the air outlet 3, thereby ensuring the cleanliness of the airflow delivered into the room.

[0037] An airflow balancing device 5 is installed at the air inlet 2. The airflow balancing device 5 includes a valve plate 51, an air pressure sensor 53 for detecting air pressure, and an actuator 52 that adjusts the opening state of the valve plate 51 based on the value of the air pressure sensor 53. The actuator 52 can be a stepper motor or other drive component capable of controlling the rotation angle of the valve plate 51. This allows the airflow balancing device to automatically increase the valve plate opening when the filter component resistance increases, resulting in a decrease in airflow. Conversely, when the filter component resistance increases, leading to increased pressure loss and decreased airflow, the actuator can further increase the valve opening, thereby reducing valve resistance, maintaining a constant overall pressure loss, and thus maintaining a constant airflow to meet the user's needs. An air inlet pipe 11 extends into the housing 1 at the air inlet 2. The airflow balancing device 5 is located within the air inlet pipe 11 to ensure that the overall high-efficiency air outlet space is not excessive, thus guaranteeing usability.

[0038] An intelligent control box 7 is installed on the housing 1. Filter pressure measuring elements 8 are installed on both the upper and lower sides of the filter assembly 4. The filter pressure measuring elements 8 and the actuator 52 are electrically connected to the intelligent control box 7. The intelligent control box 7 controls the operation of the actuator 52 based on the pressure difference between the two filter pressure measuring elements 8. That is, when the filter pressure measuring element 8 detects an excessive pressure difference between the front and rear sides of the filter assembly 4, the intelligent control box 7 can issue an alarm to remind maintenance personnel to repair or replace the filter assembly 4.

[0039] A sealing element 9 is provided between the filter assembly 4 and the housing 1 to ensure that all airflow passes through the filter assembly 4, thereby guaranteeing the cleanliness of the fresh air. The sealing element 9 includes a filter sealing strip 91 located on the top of the filter assembly 4, and a sealing plate on the housing 1 for pressing against the filter sealing strip 91. When the filter assembly 4 is screwed and fixed inside the housing 1, the filter sealing strip 91 at the top of the filter assembly is pressed against the sealing plate, thereby achieving a seal. The sealing plate includes an inner plate 92 and an outer plate 93, with a gap between the inner plate 92 and the outer plate 93 forming a leak detection groove 94. A leak detection tube communicating with the leak detection groove 94 is provided on the outer plate. This allows the leak detection tube to directly detect whether the leakage of the sealing element 9 meets the sealing requirements, facilitating subsequent acceptance and maintenance.

[0040] An air outlet panel 6 is provided at the air outlet 3. The air outlet panel 6 has several radially arranged air outlet slots 61. The air outlet panel 6 serves to shield and protect the internal components of the housing 1, as well as to achieve an aesthetic effect. The air outlet efficiency is ensured by the arrangement of the air outlet slots 61.

[0041] Aerosol detectors are installed at air inlets 2. The aerosol detectors are electrically connected to the intelligent control box 7 to detect the quality of the incoming air. If the quality is too low, an alarm will be issued.

[0042] The implementation principle of the intelligent variable air volume (VAV) high-efficiency air outlet in this application embodiment is as follows: After the airflow treated by the air handling unit enters through the air inlet 2, it is further filtered by the filter assembly 4 and then discharged from the air outlet 3, thereby ensuring the cleanliness of the airflow delivered into the room. When the resistance of the filter assembly increases, resulting in increased pressure loss and reduced airflow, the valve opening can be increased by controlling the actuator, thereby reducing the valve resistance, maintaining the overall pressure loss constant, and ensuring the user's needs.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. Intelligent variable air volume high-efficiency air outlet, characterized by: Includes a housing (1), on which an air inlet (2) and an air outlet (3) are provided, and a filter assembly (4) is provided inside the housing (1), and an air volume balancing device (5) is provided at the air inlet (2); The air volume balancing device (5) includes a valve plate (51), an air pressure detection sensor (53) for detecting air pressure, and an actuator (52) for adjusting the opening state of the valve plate (51) according to the value of the air pressure detection sensor (53). An air outlet panel (6) is provided at the air outlet (3).

2. The intelligent variable air volume high-efficiency air outlet according to claim 1, characterized in that: The housing (1) is equipped with an intelligent control box (7). The filter assembly (4) is equipped with filter pressure measuring elements (8) on both the upper and lower sides. The filter pressure measuring elements (8) and the actuator (52) are electrically connected to the intelligent control box (7). The intelligent control box (7) controls the operation of the actuator (52) based on the pressure difference between the two filter pressure measuring elements (8).

3. The intelligent variable air volume high-efficiency air outlet according to claim 1, characterized in that: An air inlet pipe (11) extending into the housing (1) is provided at the air inlet (2), and the air volume balancing device (5) is provided inside the air inlet pipe (11).

4. The intelligent variable air volume high-efficiency air outlet according to claim 1, characterized in that: A sealing element (9) is provided between the filter assembly (4) and the housing (1).

5. The intelligent variable air volume high-efficiency air outlet according to claim 4, characterized in that: The sealing element (9) includes a filter sealing strip (91) disposed on the top of the filter assembly (4), and a sealing plate for pressing against the filter sealing strip (91) is disposed on the housing (1).

6. The intelligent variable air volume high-efficiency air outlet according to claim 5, characterized in that: The sealing plate includes an inner plate (92) and an outer plate (93), with a gap between the inner plate (92) and the outer plate (93), and a leak detection groove (94) is formed between the inner plate (92) and the outer plate (93). A leak detection tube (95) communicating with the leak detection groove (94) is provided on the outer plate.

7. The intelligent variable air volume high-efficiency air outlet according to claim 1, characterized in that: The air outlet panel (6) is provided with a number of radially arranged air outlet slots (61).

8. The intelligent variable air volume high-efficiency air outlet according to claim 1, characterized in that: An aerosol detector is installed at the air inlet (2).

Citation Information

Patent Citations

  • Air conditioning end equipment containing filter

    CN2529122Y