CN111811102A - An intelligent air curtain system - Google Patents

Abstract

The invention discloses an intelligent air curtain system, and relates to the technical field of modular air curtains. The technical scheme of the disclosure is provided with an air return inlet, and is characterized in that a variable frequency centrifugal fan is also arranged in the shell; the airflow accelerating air duct is integrally and hermetically arranged in the shell; the air outlet is embedded on the shell, and the angle-adjustable shutter is movably arranged on the air outlet. This intelligent air curtain system is when using in winter, and when the cold air wind speed that air velocity transducer detected was great, the opening angle of frequency conversion centrifugal fan rotational speed and air outlet department tripe was adjusted to intelligence, offsets each other through outdoor cold air wind speed and air curtain air-out wind speed, and the complete separation outdoor cold air gets into indoorly, realizes the ideal effect of air curtain, reduces the unnecessary heat load energy consumption. When the outdoor cold air speed is low, the centrifugal fan is intelligently adjusted to be operated at a low speed, the operation energy consumption of the fan is reduced, and the effects of energy conservation and emission reduction are achieved.

Description

An intelligent air curtain system

technical field

The invention discloses and relates to the technical field of modular air curtains, in particular to an intelligent air curtain system.

Background technique

The air curtain is a kind of heating equipment that generates a high-speed airflow through a cross-flow or centrifugal fan to form a curtain-like airflow. The air curtain is installed at the door of the building that needs to be insulated. By generating the airflow curtain to block the indoor and outdoor air, on the one hand, it can prevent the exchange of indoor and outdoor hot and cold air, and on the other hand, it can prevent the outdoor dirty air or dust from entering the room.

In the traditional air curtain, the heater is arranged at the air outlet, and the air flow is accelerated from the return air outlet through the acceleration air duct and then passes through the heater for heat exchange, thereby forming an air curtain-like air flow, which acts as a barrier. Since the outdoor cold air entering the room has a certain speed, and the air curtain air flow is vertically downward and cannot be adjusted in direction, under the interaction of the air flow, a large amount of cold air will enter the room at the lower part of the air curtain, increasing the indoor heat load and causing the air curtain to lose Block the role of cold air. At the same time, traditional air curtains are mostly fixed-frequency fans, that is, the fans always work at the same speed after opening, which leads to unnecessary loss of building energy consumption when the outdoor cold air speed is low.

To sum up, the problems existing in the prior art are:

(1) A large amount of cold air will enter the room at the lower part of the traditional air curtain, which will increase the indoor heat load and make the air curtain lose its function of blocking cold air.

(2) Most of the traditional air curtains are fixed-frequency fans, that is, the fans always work at the same speed after being turned on. When the wind speed of the outdoor cold air is low, it leads to unnecessary loss of building energy consumption.

The difficulty of solving the above-mentioned technical problems is: the existing technology is difficult to achieve the blocking effect of the air curtain in the true sense in an effective way, and at the same time, in terms of energy saving, it is difficult to find a control principle to realize the control of the variable frequency fan.

The significance of solving the above technical problems is to make the air curtain truly achieve the effect of blocking indoor and outdoor air, reduce the indoor heat load, and reduce the energy consumption of the air curtain through ingenious control principles, so as to achieve the effect of energy saving and emission reduction.

SUMMARY OF THE INVENTION

In order to overcome the problems existing in the related art, the disclosed embodiments of the present invention provide an intelligent air curtain system. The technical solution is as follows:

The intelligent air curtain system includes a casing, one side of the casing is provided with an air return port, and a variable frequency centrifugal fan is also installed inside the casing;

The airflow acceleration air duct is integrally sealed and installed in the housing;

The air outlet is embedded in the casing,

Adjustable angle louvers are movably mounted on the air outlet.

In one embodiment, the variable frequency centrifugal fan includes an impeller;

a variable frequency motor that drives the impeller to rotate; and,

The automatic control device is electrically connected with the variable frequency motor.

In one embodiment, the adjustable angle louver is provided with a louver motor, and the control end of the louver motor is connected to an automatic control device;

The output shaft of the louver motor is movably connected to the self-vertical louvers through the linear guide rail, and the fixed shafts are fixedly installed between the self-vertical louvers; the lower end of the self-vertical louvers is installed on the air outlet through the movable shaft.

In one embodiment, the signal collection end of the automatic control device is further connected with an wind speed sensor, and the wind speed sensor is installed in the wet indoor and outdoor, respectively.

The technical solutions provided by the embodiments disclosed in the present invention may include the following beneficial effects:

(1) When the intelligent air curtain system is used in winter, when the wind speed of the cold air detected by the wind speed sensor is relatively large, the speed of the variable frequency centrifugal fan and the opening angle of the louver at the air outlet are intelligently adjusted, and the wind speed of the outdoor cold air and the air curtain are adjusted. The outlet wind speeds cancel each other out, completely blocking the outdoor cold air from entering the room, achieving the ideal effect of the air curtain and reducing unnecessary heat load energy consumption. When the wind speed of the outdoor cold air is low, the centrifugal fan is intelligently adjusted to run at a low speed to reduce the energy consumption of the fan operation and achieve the effect of energy saving and emission reduction.

(2) The intelligent air curtain system is simple in structure, intelligent and convenient, energy-saving and efficient, and can be applied to various occasions to achieve the ideal effect of the air curtain.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not limiting of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is a schematic structural diagram of an intelligent air curtain system according to the present invention.

Reference number:

1. Shell; 2. Air return port; 3. Frequency conversion centrifugal fan; 4. Air flow acceleration air duct; 5. Air outlet; 6. Louver motor; 7. Linear guide rail; 8. Fixed shaft; 9. Active shaft; 10. 11. Automatic control device; 12. Wind speed sensor.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

The smart air curtain system provided by the disclosed embodiment of the present invention includes an air velocity sensor 13, a casing 1, a return air outlet 2 arranged on one side of the casing, a variable frequency centrifugal fan 3 arranged in the casing, and an airflow acceleration arranged in the casing. The air duct 4, the air outlet 5 arranged on the other side of the casing, and the self-hanging louver 10 arranged at the air outlet.

The housing 1 and the airflow acceleration air duct 4 in the housing are integrally sealed.

The variable frequency centrifugal fan 3 includes an impeller, a variable frequency motor and an automatic control device 11 that drive the impeller to rotate.

The adjustable angle louver includes a louver motor 6 , a linear guide 7 , a fixed shaft 8 , a movable shaft 9 and a self-vertical louver 10 .

The automatic control device 11 receives the detection signal of the wind speed sensor 12 and outputs a feedback signal to control the variable frequency centrifugal fan 3 and the louver motor 6 .

The intelligent air curtain system accelerates the indoor air through the centrifugal fan 3 in the casing and the airflow acceleration air duct 6 arranged in the casing, and realizes the air curtain barrier effect through the high-speed airflow in the adjustable angle louver conveying system to the working area.

The working principle of the intelligent air curtain system of the present invention is as follows:

In the working state, the indoor air enters the casing through the return air outlet, and then flows out of the casing through the air outlet after being accelerated by the centrifugal fan and the accelerating air duct, forming a high-speed curtain-like airflow, thereby forming a barrier effect with the outdoor cold air. When the wind speed sensor detects that the wind speed of the outdoor cold air is large, the wind speed signal is transmitted to the automatic control device, the automatic control device feeds back the signal and adjusts the louver motor, and drives the self-vertical louver through the linear guide to adjust the air outlet angle and the rotational speed of the centrifugal fan, so that the outflow The high-speed gas of the shell and the outdoor wind speed are offset by the wind speed, which completely blocks the outdoor cold air from entering the room and ensures the working effect of the air curtain. When the wind speed sensor detects that the outdoor wind speed is small, the speed of the centrifugal fan is reduced by the automatic control device, and the energy consumption of the fan is reduced on the premise of blocking the outdoor cold air.

The intelligent air curtain system of the present invention intelligently adjusts the rotational speed of the variable frequency centrifugal fan and the opening angle of the louver at the air outlet when the wind speed of the cold air detected by the wind speed sensor is relatively large when used in winter. The wind speed cancels each other out, completely blocking the outdoor cold air from entering the room, realizing the ideal effect of the air curtain and reducing unnecessary heat load energy consumption. At the same time, when the outdoor cold air speed is low, the centrifugal fan is intelligently adjusted to run at a low speed, reducing the energy consumption of the fan operation and achieving the effect of energy saving and emission reduction. The intelligent air curtain system of the invention has the advantages of simple structure, intelligence and convenience, energy saving and high efficiency, and can be applied to various occasions to realize the ideal effect of the air curtain.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or techniques in the technical field not disclosed by the present disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the appended claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure should be limited by the appended claims.

Claims (4)

1. An intelligent air curtain system comprises a shell, wherein one side of the shell is provided with an air return inlet, and the intelligent air curtain system is characterized in that a variable-frequency centrifugal fan is further installed inside the shell;

the airflow accelerating air duct is integrally and hermetically arranged in the shell;

the air outlet is embedded on the shell;

the angle-adjustable shutter is movably mounted on the air outlet.

2. The intelligent air curtain system as recited in claim 1, wherein the variable frequency centrifugal fan comprises an impeller;

the variable frequency motor drives the impeller to rotate; and the number of the first and second groups,

and the automatic control device is electrically connected with the variable frequency motor.

3. The intelligent air curtain system as claimed in claim 1, wherein the adjustable angle louver is provided with a louver motor, and a control end of the louver motor is connected with an automatic control device;

the output shaft of the shutter motor is movably connected with the self-hanging shutters through linear guide rails, and the self-hanging shutters are fixedly installed through fixed shafts; the lower end of the self-dropping shutter is arranged on the air outlet through a movable shaft.

4. The intelligent air curtain system as claimed in claim 2, wherein the signal collecting terminal of the automatic control device is further connected to wind speed sensors, and the wind speed sensors are respectively installed in the wet room and the outdoor room.

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