Kunming Lifei-Mainly ventilation equipment series products.

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KUNMING LIFEI HVAC EQUIPMENT CO., LTD

KUNMING LIFEI HVAC EQUIPMENT

We specialize in manufacturing, processing, and selling fire dampers, smoke exhaust valves, regulating valves, static pressure boxes, mufflers, soundproof louvers, as well as various ventilation hoods

KUNMING LIFEI HVAC EQUIPMENT CO., LTD

WARM PROMISES EVERY WINTER FOR YOU

The fan and cabinet production lines and products, which have been continuously improved in technology and invested a large amount of resources over the years

KUNMING LIFEI HVAC EQUIPMENT CO., LTD

EMPOWERED BY TECHNOLOGY

Our company integrates production and after-sales service, with strict quality management and control in every aspect of material procurement, production and manufacturing, inspection and packaging, transportation, and after-sales service.

Kunming Lifei HVAC Equipment Co., Ltd.

Kunming Lifei HVAC Equipment Co., Ltd. was established in 2004 with a registered capital of 30 million yuan. Mainly engaged in the manufacturing, processing, and sales of fire dampers, smoke exhaust valves, regulating valves, static pressure boxes, mufflers, soundproof louvers, as well as various ventilation hoods, fire smoke exhaust hoods, oil fume purification hoods, and axial flow fan series products. Our company has been established for 20 years now. The company has a production capacity of 80 million yuan and is a leading enterprise in the production of ventilation equipment in Yunnan Province. It is a large-scale enterprise and key industrial production enterprise in Guandu District, a member unit of Yunnan Fire Protection Association, a high-tech enterprise, a small and medium-sized enterprise in science and technology in Yunnan Province, and an innovative small and medium-sized enterprise in Yunnan Province.

PRODUCT CENTER

Products

Engaged in the manufacture, processing and sales of fire dampers, smoke exhaust valves, regulating valves, static pressure boxes, mufflers, mufflers, and various ventilation cabinets, fire exhaust cabinets, fume purification cabinets, axial flow fans series products.

Relief valve

Fire dampers are installed in the supply air duct of ventilation or air conditioning systems. When a fire occurs and the gas temperature in the duct system reaches 70°C

Panel-type smoke exhaust outlet

Fire dampers are installed in the supply air duct of ventilation or air conditioning systems.

Regulating valve

Fire dampers are installed in the supply air duct of ventilation or air conditioning systems.

Smoke exhaust fire damper

When a fire occurs and the gas temperature in the duct system reaches 70°C

Fire damper

Fire dampers are installed in the supply air duct of ventilation or air conditioning systems

Round diffuser

Widely used in air conditioning systems for supply, exhaust, and return air

Linear air outlet

Widely used in air conditioning systems for supply

Double-layered blinds

Widely used in air conditioning systems for supply

Spherical air outlet

Widely used in air conditioning systems for supply, exhaust, and return air

Hinged return air vent

Widely used in air conditioning systems for supply, exhaust, and return air

Square Diffuser

Widely used in air-conditioning system for sending, exhausting and returning air

0° fixed louvre

its structure has a variety of forms, its frame and blades are made of high-quality aluminum alloy profiles

NEWS INFORMATION

Blog

2022/07/15

The role of axial fans and centrifugal fans in mechanical ventilation

Due to the large difference between the air temperature and the grain temperature, the first ventilation time should be selected in the daytime, in order to reduce the gap between the grain temperature and the air temperature

2022/04/24

What are the reasons for the high vibration of high-temperature fans?

Reasons for high temperature fan vibration

2022/04/11

Misconceptions in Handling High-Temperature Fan Failures

2022/03/28

Installation and Maintenance of High-Temperature Fan Cooling Fans

2022/03/21

What are the common problems with radiators during the heating process?

2022/03/10

Quotation for smoke exhaust duct installation

Exhaust duct

2021/07/07

Fireproof roller shutter or smoke curtain, which one do you choose, architect?

However, side-rolled and irregular roller shutters are now generally not allowed in fire safety for projects, as seen in "Public Fire Safety Document [2016] No. 113": After the introduction of the "Technical Standards for Smoke Control and Exhaust in Buildings" (hereinafter referred to as the "New Smoke Regulations"), a new issue has arisen for the HVAC profession (the previous article did not address this issue), which is that the fire separation is set at the side of the shop. So how should the smoke barrier between the atrium and the corridor be set, and how high should it be? Previously, national standards did not use the smoke model calculation method during a fire for calculating smoke exhaust volume, so no one paid attention, even though the technical regulations in Shanghai at that time had...

2021/07/07

Fire Engineer Smoke Control System Chapter Practice Questions

For public buildings and industrial buildings with a height greater than 50m, and residential buildings with a height greater than 100m, the smoke-proof stairwells, independent front rooms, shared front rooms, combined front rooms, and fire elevator front rooms should use a mechanical pressurization air supply system, so AB may not be set. For public buildings and industrial buildings with a height less than or equal to 50m, and residential buildings with a height less than or equal to 100m, when the shared front room and fire elevator front room are combined, a mechanical pressurization air supply system must be set. When the mechanical pressurization air supply outlets for independent front rooms, shared front rooms, and combined front rooms are set at the top of the front room or on the wall directly facing the entrance of the front room, the stairwell...

2021/07/07

A brief analysis of the importance of smoke prevention and exhaust design in construction projects and building fire safety review!

When a fire occurs, the real danger often comes from the smoke produced by the burning, as many building fire incidents contain toxic gases in the smoke, endangering the lives of trapped individuals. Therefore, the design of smoke prevention and exhaust in building engineering is very important, as it can timely expel smoke from the building during a fire, providing more time for escapees and rescuers. Not only that, but the design of smoke prevention and exhaust in building engineering is also an important part of fire prevention review in buildings. Below, we will analyze the specific content of building fire safety review and the design of smoke prevention and exhaust in building engineering by introducing engineering cases and fire smoke.

2021/07/07

Summary of Exam Points: Smoke Control and Exhaust System for Fire Protection, 18 points

Chapter 11: Smoke Prevention and Exhaust System In four years, a total of 18 points were tested. Through the study of this chapter, understand the physical composition and structure of the smoke prevention and exhaust system and its components; master the inspection methods and requirements before the installation of smoke prevention and exhaust system components; be familiar with the installation requirements of the smoke prevention and exhaust system; master the methods and requirements for testing, acceptance, and maintenance management of the smoke prevention and exhaust system. Point 1: Smoke Prevention and Exhaust System The smoke prevention system refers to a system that uses mechanical pressurization or natural ventilation (opening external windows) to prevent smoke from entering spaces such as stairwells, lobbies, and refuge floors; The exhaust system refers to a system that uses mechanical smoke exhaust or natural smoke exhaust methods.

2021/07/07

Is the smoke exhaust fire damper normally open or normally closed? Function of the smoke exhaust fire damper.

If our home uses heating in winter, we must install a boiler to heat the radiators. Generally, the boiler has a smoke exhaust fire damper. We can first check whether the smoke exhaust fire damper is normally open or normally closed. For those using a boiler for the first time, it may not be clear what to do. Additionally, some people may not know the function of the smoke exhaust fire damper. The smoke exhaust fire damper should be normally open, as referenced in GB15930-2007. The 2007 07K103-1 Architectural Fire Prevention and Smoke Exhaust Design Atlas.

2021/07/07

Soundproof louver

Sound-absorbing louver, also known as sound-absorbing louver window or louver-type silencer, is actually a modified version of a very short (0.2 to 0.6m) plate or baffle silencer. It is a window-type structure that allows airflow while eliminating noise. Due to the use of metal materials in its structure and special processing techniques, sound-absorbing louvers can be used in any climate conditions, have low airflow resistance, high noise reduction capacity, and an aesthetically pleasing appearance, which can also serve as decorative windows. They meet the requirements for ventilation, heat dissipation, lighting, enclosure, and controlling noise radiation outward. The general noise reduction capacity of sound-absorbing louvers is 5 to 15 dB, and their noise reduction characteristics are predominantly in the mid to high frequency range.

2021/07/07

Static pressure box

The static pressure box is a necessary accessory in the air supply system that reduces dynamic pressure, increases static pressure, stabilizes airflow, and reduces airflow vibration, making the air supply effect more ideal. The static pressure box is a device that allows airflow to pass through while effectively blocking or reducing the transmission of sound energy to the outside. Classification of sound attenuation: 1. Resistance-type silencer: This type absorbs sound energy to reduce noise through sound-absorbing materials attached inside the box, generally used to eliminate high and mid-frequency noise. However, due to structural reasons, it is not suitable for high temperature, high humidity, and high-speed conditions. 2. Antistatic silencer: This type reduces noise by changing the cross-section. The commonly used sound-absorbing static pressure boxes are of this type.

2021/07/06

Regulating valve

The regulating valve, also known as the control valve, is the final control element in the field of industrial automation process control. It changes the flow, pressure, temperature, liquid level, and other process parameters by receiving control signals from the regulating control unit and using power operation. It generally consists of an actuator and a valve. Based on stroke characteristics, regulating valves can be divided into linear stroke and angular stroke; based on the power used by the actuator, they can be classified into three types: pneumatic regulating valves, electric regulating valves, and hydraulic regulating valves; based on their functions and characteristics, they can be divided into three types: linear characteristics, equal percentage characteristics, and parabolic characteristics. Regulating valves are suitable for air, water, steam, and various corrosive media.

2021/07/06

Smoke exhaust valve

The smoke exhaust valve is installed at the end of each branch of the mechanical smoke exhaust system (smoke intake), usually in a closed state and meeting the air leakage requirements. It can be manually or electrically opened during a fire or when smoke exhaust is needed, serving the function of smoke exhaust. Definition: Installed at the end of each branch of the mechanical smoke exhaust system (smoke intake), usually in a closed state and meeting the air leakage requirements. It can be manually or electrically opened during a fire or when smoke exhaust is needed, serving the function of smoke exhaust. Valves with decorative openings or that have been decorated are referred to as smoke exhaust openings. Generally, the smoke exhaust system in buildings requires personnel confirmation and operation, so smoke exhaust valves do not have temperature sensing devices. They are usually installed in the upper part of the building space.

2021/07/06

Fire damper

The fire damper is a type of temperature control using memory alloy, which closes the valve through the action of gravity and a spring mechanism. New products also utilize the deformation of memory alloy to close the valve. Its function is: when the smoke temperature reaches 280℃, people have basically evacuated, and smoke extraction is no longer meaningful, while the smoke at this time is already carrying fire, the valve automatically closes to prevent the spread of fire. The fire damper is a normally closed valve, which can be opened by a control center using 24V DC power or manually, and it automatically closes at 280℃, with reset requiring manual action. Its function is: when the smoke temperature reaches 280℃, people have...

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SERVICE HOTLINE

Service Hotline

+86 13577190898 (Yang Jingli)

ENTERPRISE EMAIL

Enterprise E-mail

1437006423@qq.com

ENTERPRISE ADDRESS

Enterprise Address

No.15 Chenghuang Road, Guandu District, Kunming City (opposite Kunming Zhiwang Industry Co., Ltd.)