CN102444953A - Ventilating air-conditioning system of large welding workshop - Google Patents

Abstract

The invention relates to a ventilation and air-conditioning system, which mainly includes: an induced fan blowing at multiple angles is arranged on each span in the workshop, and a roof exhaust fan is correspondingly arranged on the roof, and the ventilation airflow formed by the induced fan and the roof exhaust fan workshop is It is an induced unidirectional flow; an air-conditioning terminal is installed on each working position, and the air-conditioning terminal is connected with the air-conditioning chassis through an air supply pipe; a local exhaust hood is arranged above the welding frame in the workshop, and the local exhaust The wind cover communicates with the fan box through pipes, and combines with the air supply from the air conditioner terminal to form a small air flow of local blowing and suction ventilation. The present invention has the following main advantages: 1. Ensure the minimum number of air changes in the workshop; 2. Provide workers with a comfortable working environment; 3. It not only eliminates harmful substances, but also reduces the temperature of the working area; 4. Ensure safe production, and create a comfortable thermal environment in the work area, and the temperature of the work area is adjustable and controllable, energy-saving, reliable, and low cost.

Description

Large welding workshop ventilation and air conditioning system

technical field

The invention relates to a ventilation and air-conditioning system, in particular to a large-scale welding workshop ventilation and air-conditioning system, which ensures the safety, health and comfortable environment of workers.

Background technique

At present, the welding workshop is mainly based on local exhaust and local air supply, supplemented by comprehensive ventilation to improve the labor hygiene environment of the welding workshop, and most of them use mechanical ventilation in the form of jet flow, which consumes a lot of power and high operating costs. At the same time, due to unreasonable design and imperfect operation management, the expected ventilation effect cannot be achieved, the concentration of harmful substances is high, and the temperature in the workshop with a large amount of waste heat is higher than the temperature requirement of the working environment.

Contents of the invention

The technical problem to be solved by the present invention is to provide a large-scale welding workshop ventilation and air conditioning system, which can control the concentration of pollutants in the entire workshop, ensure the temperature of the working area, and change the traditional concept of only ventilation in the welding workshop without air conditioning. The system is safe and environmentally friendly, energy-saving and reliable. And the cost is low.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a large-scale welding workshop ventilation and air conditioning system, which is characterized in that it mainly includes:

1) Fully ventilated part

An induced fan with multi-angle injection is installed at each span in the workshop, and the corresponding roof exhaust fan is arranged on the roof. The ventilation air flow formed by the induced fan and the roof exhaust fan workshop is an induced unidirectional flow;

2) Work station air conditioner

The air-conditioning terminal installed on each working position in the workshop, the air-conditioning terminal is connected with the air-conditioning chassis through the air supply pipe;

3) Part of local ventilation

The local exhaust hood is arranged above the welding frame in the workshop. The local exhaust hood is connected with the fan box through a pipe, and is combined with the air supply from the air conditioner terminal to form a small air flow of local blowing and suction ventilation.

Compared with the prior art, the present invention has the following main advantages:

1. Through the cooperative operation of the multi-angle blowing induction fan and the roof exhaust fan, a one-way flow ventilation is formed in the workshop, which ensures the minimum number of air changes in the workshop, destroys the smoke clouds and floating dust suspended within 2-4 meters of the workshop, and cleans the workshop Harmful substances are eliminated in an orderly manner;

2. The air-supply mode of energy-saving station is adopted, air-conditioning air is sent in summer, and outdoor air is sent in winter, which can not only eliminate the waste heat in the workshop, provide workers with a comfortable working environment, but also avoid the huge energy consumption generated when the workshop is fully air-conditioned;

3. The local exhaust air installed on the welding frame and the station air supply combine to form a blowing and suction small air flow, which not only eliminates harmful substances, but also reduces the temperature of the work area, ensuring the environment and safety of the work area, and saving energy;

4. The system can not only effectively control the concentration of pollutants in the workshop, ensure safe production, but also create a comfortable thermal environment in the work area, and the temperature of the work area is adjustable and controllable, energy-saving, reliable, and low in cost;

5. Offers the advantages of conventional welding shop ventilation systems.

Description of drawings

Figure 1 is a layout diagram of the comprehensive ventilation part;

Figure 2 is a diagram of the fan box connection system;

Figure 3 is a diagram of the connection system of the air conditioner chassis;

Figure 4 is a schematic diagram of the structure of a local exhaust hood above the welding frame.

Detailed ways

The present invention will be further described below in conjunction with the examples, but not only limited to the following examples.

Large-scale welding workshop ventilation and air conditioning system mainly includes:

1) Fully ventilated part

An induction fan 1 with multi-angle injection is installed on each span in the workshop, and the corresponding roof exhaust fan 2 is arranged on the roof. The ventilation air flow formed by the induction fan and the roof exhaust fan workshop is an induced unidirectional flow;

3) Work station air conditioner

The air-conditioning terminal 5 installed on each working position in the workshop, the air-conditioning terminal communicates with the air-conditioning chassis through the air supply pipe;

3) Part of local ventilation

The local exhaust hood is arranged above the welding frame in the workshop, and the local exhaust hood is connected with the fan box through the pipeline, and is combined with the air supply of the air conditioner terminal 5 to form a small air flow of local blowing and suction ventilation.

The detailed structure of the present invention is as follows: set an induction fan inclined upward at a certain angle at a certain height of each span of the workshop, install a roof fan at an appropriate position on the roof, and the exhaust air volume of the roof fan matches the jet flow end air volume of the induction fan; Each station is equipped with an air-conditioning terminal, and the staff can adjust the air temperature, humidity, pollutant concentration and airflow in the working area by adjusting the parameters of the air-conditioning air supply volume, air supply direction, air supply speed, and air supply temperature. Speed requirements; a local exhaust hood is installed on the welding frame at each station, and combined with the air outlet of the air conditioner at the station to form a local blowing and suction ventilation.

Claims (1)

1. The large-scale welding workshop ventilation and air conditioning system is characterized in that it mainly includes: 1) Fully ventilated part An induction fan (1) with multi-angle blowing is installed in each span of the workshop, and the corresponding roof exhaust fan (2) is arranged on the roof. The ventilation air flow formed by the induction fan and the roof exhaust fan workshop is an induced one-way flow ; 2) Work station air conditioner An air-conditioning terminal (5) installed on each working position in the workshop, the air-conditioning terminal communicates with the air-conditioning chassis (4) through the air supply pipe (6); 3) Part of local ventilation The local exhaust hood (7) is set above the welding frame in the workshop. The local exhaust hood is connected with the fan box (3) through the pipe, and is combined with the air supply of the air conditioner terminal (5) to form a local blowing and suction type. A small draft of ventilation.

Images