loading

Expert for pre insulated duct CNC cutting machine.

INFO CENTER

VENTECH research and development plus a strict quality control program have been fundamental to our growth, success and reputation.

Home  > INFO CENTER  > NEWS  > 

The characteristics, design methods and comparison of commonly used air-conditioning systems Part Five

The characteristics, design methods and comparison of commonly used air-conditioning systems Part Five

2023-04-13

The characteristics, design methods and comparison of commonly used air-conditioning systems Part Five

 

Design and selection of main equipment

1. Selection and calculation of fan coil units

2. Selection and calculation of fresh air air conditioning box

3. Selection calculation of combined air handling unit

Cold and thermal insulation, noise reduction and vibration isolation of air-conditioning equipment and pipelines

 

1. Cooling and heat preservation of air-conditioning equipment and pipelines

2. Noise reduction and vibration isolation of air conditioning equipment and pipelines


Construction Drawing Depth Requirements

1. floor plan

(1) The floor plan should draw the building outline, main axis number, axis size, indoor and outdoor ground elevation, and room names. A north arrow should be drawn on the ground floor plan.

 

(2) The heating plan should draw the position of the radiator, indicate the number or length of the radiator, the position and number of the heating main pipe and the standpipe, the valve of the pipe, the air release, the water discharge, the fixing bracket, the compensator, the inlet device, the decompression Devices, steam traps, pipe trenches and inspection manholes. Indicate the diameter, elevation and slope of the main pipe.

 

(3) Air ducts should be drawn with double lines on the ventilation and air-conditioning plan, and cold and hot water, condensate and other pipes for air-conditioning should be drawn with a single line. The drawings should indicate the size, elevation and air outlet size of the air duct (indicate the diameter of the circular air duct, and indicate the width x height of the rectangular air duct), as well as the diameter and elevation of the water pipe, as well as the positioning dimensions and installation dimensions of various equipment and air outlets. The serial number should also indicate the position of various components such as the muffler, regulating valve, fire damper, and the airflow direction of the air duct and air outlet.


2. Large and detailed drawings

The large-scale detailed drawings represent the construction and installation practices of various equipment and components of heating, ventilation, air-conditioning, and refrigeration systems. When standard atlases are used, the titles, drawing numbers and page numbers of the atlases and general drawings used should be indicated. Where no ready-made drawings are available and design intentions need to be stated, detailed drawings must be drawn. Simple detailed drawings can be derived from the drawing and drawn in the blank space of the drawing. Detailed drawings for making equipment, pipe fittings, etc. or complicated installations shall be drawn separately.

 

3. System Diagram or Riser Diagram

System diagram or riser diagram can show the relationship between system and space, also known as perspective diagram. When the plan view cannot be clearly expressed, a perspective view should be drawn, and the proportion should be consistent with the plan view, drawn according to 45° or 30° axonometric projection. For the central heating system of multi-storey and high-rise buildings, the heating riser diagram can be drawn and should be numbered. The above-mentioned drawings should indicate pipe diameter, slope direction, elevation, type and quantity of radiators, etc. When the cooling and heating branch waterways of the air conditioner are transported vertically, the riser diagram should also be drawn and numbered, and the pipe diameter, slope direction, elevation and the model of the air conditioner should also be indicated.


4. Sectional or Partial Sectional Drawing

A cross-sectional view or a partial cross-sectional view, showing the intersecting and complex relationship between air ducts or pipes and equipment connections. The drawing shall show the size relationship between air ducts, water pipes, air outlets, equipment, etc. and building beams, slabs, columns and the ground, and indicate the positioning dimensions and elevations, airflow directions and detail index numbers of air ducts, air outlets, water pipes, etc.


Air-conditioning and refrigeration room design

1. floor plan

(1) The floor plan of ventilation, air-conditioning, and refrigeration rooms should be enlarged according to needs, so that the design content can be clearly expressed on the drawing, and chillers, fresh air units, air conditioners, circulating water pumps, cooling water pumps, ventilators, Outline positions and equipment numbers of ventilation, air-conditioning and refrigeration equipment such as mufflers, water tanks, cooling towers, etc., indicate the distance between the equipment and the foundation and the wall or axis, draw the position and direction of the air pipes and water pipes connecting the equipment, and indicate the dimensions, pipes, etc. diameter, elevation. Mark the location of all equipment and various instruments, valves, flexible short pipes, filters and other pipeline accessories in the computer room.

(2) Sectional drawings of ventilation, air-conditioning, and refrigeration machine rooms are used to express the relative relationship and vertical position relationship of complex pipelines. When drawing, the equipment, equipment foundation, vertical position, vertical size and elevation. The position, size, number of equipment and accessories as well as the number of detail drawing index etc. should also be indicated in the drawing.


2. System flow chart

Phenolic ductwork fabrication machine is a cnc machine used to cut phenolic ductworks. Phenolic ductwork fabrication machine is easy to use, fast cutting, precise cutting.

The pipeline connection relationship of complex systems should be drawn as a system flow chart. For heat, refrigeration, air conditioning hot and cold water systems and complex wind systems, system flow charts should also be drawn, and equipment, valves, control instruments, The front and back relationship of the accessories, marking the medium flow direction, pipe diameter and equipment number, etc. The flow chart may not be drawn to scale, but piping branches shall conform to the plan.

 

3. Control Schematic

The control schematic diagram shows the control requirements and necessary control parameters of the system. When the air-conditioning and refrigeration systems are monitored and controlled, there should be a control schematic diagram. The diagram shows the location of equipment, sensors and control components to illustrate the control requirements of the system. and necessary control parameters.

Phenolic ductwork fabrication machine is a cnc machine used to cut phenolic ductworks. Phenolic ductwork fabrication machine is easy to use, fast cutting, precise cutting.

air-conditioning systems




More Recommendations:

Advantages of good ventilation system

The characteristics, design methods and comparison of commonly used air-conditioning systems Part Three

Central Air-conditioning Construction Site Experience-Part 3

Reasons why factory-made air ducts are more advantageous than on-site production

The characteristics, design methods and comparison of commonly used air-conditioning systems Part Four

Commonly Used HVAC Terms and Explanations Part 1

Composite pre-insulated air duct

What are the precautions for fresh air system installation

Commonly Used HVAC Terms and Explanations Part 2

How many types of Composite Pre-insulated Air Duct


暂无友情链接数据
Chat Online 编辑模式下无法使用
Leave Your Message inputting...
Thank you for your enquiry. We will get back to you ASAP