Series type fresh air system used for classrooms

Abstract

The invention provides a series type fresh air system used for classrooms. A purifying system is mounted between a front-end classroom (1) and a tail-end classroom (2); a first fresh air unit is mounted on a rear wall of the front-end classroom (1); the first fresh air unit comprises a fan unit I (5), an auxiliary heating unit (6) and a filter unit I (7); an air inlet of the fan unit I (5) communicates with the outdoor, and an air outlet of the fan unit I (5) communicates with the auxiliary heating unit (6); the auxiliary heating unit (6) communicates with the filter unit I (7); a first ventilation hole (8) is formed in the front wall of the front-end classroom (1); a second fresh air unit is mounted on the rear wall of a second classroom (9); and the second fresh air unit comprises a fan unit II (10), a first heat exchange unit I (11), a fan unit III (12) and a filter unit II (13). The fresh air system is not used in single classroom, and is used by acting between adjacent classrooms, and an air return pipeline does not need to be independently laid in each classroom, so that time and labor are saved, mounting and using cost is greatly reduced, use threshold is low, and energetic popularization is facilitated.

Description

technical field [0001] The invention relates to the field of air purification, in particular to a serial fresh air system used between classrooms. Background technique [0002] Chinese Patent Application No. 2016203465274, dated April 22, 2016, discloses a utility model patent application titled: Fresh Air Purification System for Classrooms. Paragraph [0005] of the patent points out that "dust pollution is also one of the prominent features. The air outlet and the first air inlet of the existing purification system are usually set at the same place. The fresh air blown into the room may flow out of the air outlet without circulating in the classroom. The purification efficiency is low, and the air far from the air outlet is difficult to be cleaned It is not suitable for public areas such as classrooms”, so the patent [paragraph 0007] adopts “set the air outlet and return air outlet at different positions in the classroom, so as to realize the separation of air inlet and air ...

AI Technical Summary

Problems solved by technology

[0002] Chinese Patent Application No. 2016203465274, dated April 22, 2016, discloses a utility model patent application titled: Fresh Air Purification System for Classrooms. Paragraph [0005] of the patent points out that "dust pollution is also one of the prominent features. The air outlet and the first air inlet of the existing purification system are usually set at the same place. The fresh air blown into the room may flow out of the air outlet without circulating in the classroom. The purification efficiency is low, and the air far from the air outlet is difficult to be cleaned It is not suitable for public areas such as classrooms”, so the patent [paragraph 0007] adopts “set the air outlet and return air outlet at different positions in the classroom, so as to realize the separation of air inlet and air outlet”, this patent is for The fresh air is sent to all parts of the classroom by installing pipes with air outlets on the classroom wall; at the same time, in order to facilitate the air flow in the classroom, a pressure difference is generated by installing a return air duct, so that the return air passes through the return air duct For the current classroom structure, especially for the teaching building, in order to make the classroom more solid, there are at least two beams on the roof of each classroom. According to the experience of running pipelines and the laying of pipelines The road does not affect the overall space of the classroom. When running the pipeline, it will be laid as close as possible to the corner of the wall. If it encounters a beam, it will be laid close to the beam by adding an elbow instead of directly crossing the beam from under the beam. For the plumber , each additional elbow will further increase the construction difficulty and affect the construction progress. It can be seen that the above-mentioned purification system needs to install a large number of pipes between the classroom walls to realize the air purification in the classroom. This process is time-consuming and laborious; Pangao, if a set of this system is installed in every classroom, the cost of classroom air purification will be very high, especially for non-profit institutions such as schools, the burden is even heavier and it is impossible to complete the renovation and installation of the purification system of the entire teaching building , so the above-mentioned purification system is not conducive to the vigorous promotion and application of the classroom purification system

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