The airtightness of lead doors refers to their ability to prevent external air from entering or internal air from leaking out when closed. Good airtightness is crucial for maintaining a constant environment in the work area and preventing radiation leakage.
Design Features of Airtight Doors
Sealed System: Air-tight doors typically employ special sealing systems, such as rubber gaskets, to ensure a tight fit with the door frame when closed, thereby achieving excellent airtightness.
Structural Design: Some airtight door designs cater to specific environment requirements, such as operating rooms, featuring V-shaped track and arched indentation designs, which enable effective sealing upon closure.
2. Actual Application of Airtight Doors
Hospital Application: In a hospital setting, particularly in areas requiring radiation shielding such as CT and DR rooms, the airtightness of the sealed doors is crucial for protecting healthcare professionals and patients from unnecessary radiation exposure.
Safety Considerations: The airtight door also serves as a protective measure, typically made of high-density anti-theft steel wire mesh, which possesses shock resistance and anti-penetration capabilities.
Radiation protection of lead doors
Radiation protection of lead doors refers to their ability to block radiation. Lead doors are typically made of lead material, as lead has a high atomic number, allowing it to effectively absorb and scatter X-rays and other types of radiation.
Principle of radiation protection for lead doors
Shielding Effect: Lead doors utilize a certain thickness of lead material to set up a lead barrier between the human body and the radioactive source or scatterer, thereby reducing the dose of radiation exposure to the human body.
Ray characteristics: The effect of X-rays emitted by X-ray equipment on the human body mainly stems from external exposure causing damage to the body. Shielding and protection can effectively reduce the dose received by personnel.
2. Selection Criteria for Lead Doors
Shielding Thickness: When selecting lead doors, the appropriate shielding thickness should be determined based on factors such as the radiation source characteristics,机房 size (in relation to the distance from the radiation source to the reference point), and other considerations.
Additional Considerations: Beyond air tightness and radiation protection, factors such as the lead door's lifespan, ease of maintenance, and compatibility with the surrounding environment should also be taken into account.
Single-leaf lead door, as the name implies, consists of a single door panel and is suitable for smaller entryways. This lead door structure is relatively simple and is commonly used in spaces with limited space, such as laboratories, small medical radiology departments, etc. The single-leaf lead door is more flexible in opening and closing, easy to operate, and due to its single structure, the cost is relatively low.
Single-leaf lead door opening and closing method
Single-Sided Swing: This is the most common opening method for single-leaf lead doors. The door leaf is connected by hinges and can swing to one side or both sides. In smaller spaces, the single-sided swing ensures adequate passage while maintaining a simple structure and easy operation.
Bi-leaf Lead Door Introduction
Double-leaf lead doors consist of two panels separated by a certain distance, allowing them to be opened individually or simultaneously. These doors are suitable for larger entryways, such as in large medical radiology departments, radiation therapy rooms, and other situations requiring ample passage space or frequent access. Double-leaf lead doors offer superior advantages in terms of protection, passage space, and safety.
The features of the double-leaf lead door include:
Safety & Reliability: Constructed with high-quality lead material, featuring strong impact resistance and anti-theft capabilities, effectively preventing illegal intrusion.
Convenient Access: The two doors can be opened separately or simultaneously, making it very easy for users to enter and exit without waiting for others.
High space utilization: Compared to traditional single-door designs, double-leaf lead doors require only half the width to enter, thereby saving indoor space and better accommodating narrow passages.
High durability: Made with special process, surface treated for corrosion resistance, able to withstand harsh environments for extended periods without damage.
Double-leaf lead door opening and closing method
Double-Swinging Doors: Ideal for spacious corridors, both doors open to the sides, leaving a clear passage in the center to provide ample space for entry and exit. This opening style effectively accommodates the needs of large groups of people or heavy equipment.
