The medical gas system includes medical vacuum pumps system, medical air compressors system, oxygen generators system, medical gas manifold system, medical gas monitor system, bed head units and medical gas outlet several major parts. In the new hospital construction project or the old hospital renovation and expansion project, we must take into account the above several major system factors, according to the actual planning of the hospital practical medical gas system.
In general, the new hospital medical gas system according to point planning, design flow, optimization results, the selected bed head units type and to determine the layout, the selection of switching devices and gas manifold, the rational planning of the number and location of the zone valve box to determine the required alarm points, determine the diameter and pipe material, choose a reliable gas outlet, construction and acceptance of the process to plan. This article will describe the planning steps for a new hospital medical gas system.
1.Point planning
Regarding the planning of point location, the setting requirements of medical gas outlets components should be considered. Since different departments have different requirements on medical gases, the requirements for oxygen, vacuum, medical air, oxygen mixed gas, helium oxide, anesthetic or respiratory waste, Carbon dioxide, hydrogen and oxygen mixed gas supply will be different, in the early design to do a bit in advance of the distinction and planning.
2.Gas consumption calculation and optimization results
The calculation of gas consumption should be based on medical gas engineering specifications, but this standard is not static. In the actual design, the gas consumption should be configured according to the specific conditions of the hospital and the result should be optimized.
In addition, it is recommended that there be a certain amount of allowance for the design of gas consumption because once the need arises for additional beds because of the increased level of occupancy, the hospital can ensure adequate gas supply.
3.Selected switching devices and medical gas manifold
The selected switchgear and medical gas manifold are based on the type of main gas source. In order to ensure an uninterrupted gas supply, it is recommended to use the automatic manifold. The automatic manifold can greatly reduce the probability of a human-caused accident. It is recommended to use three automatic manifolds, which can switch the main gas source and two standby gas sources automatically, so as to realize safe and reliable unmanned watch keeping.
4.Reasonable planning zone valve box number, location, and medical gas alarm points
The choice of the number and location of the hospital’s zone valve box and medical gas alarm point is very important, and the gas system involves a lot of dangerous gases such as pure oxygen and nitrous oxide. Hospital traffic is large, fire and other unexpected situations are at high risk. Therefore, the monitoring of the medical gas and the emergency cut off the gas source has put forward higher requirements.
It is recommended to use alarm and cut-off valve box designs for installation at a nurse station for quick handling after an alarm to prevent further problems.
5.Determine pipe diameter and piping material
The selection of pipe diameters includes room pipeline, corridor pipeline, and shaft pipeline. Pipeline material selection currently has the copper pipe and stainless steel pipe, the two materials have advantages and disadvantages, and the specific choice depends on the needs of the hospital.
6.Selection of gas outlets
Medical gas outlets play a pivotal role in the central gas supply system, the number of hospitals used is relatively large. In the selection of product quality safety and reliability is the first factor to be considered, because the assumption of a 3% failure rate, will consume more maintenance resources.
7.Construction and acceptance
Strict site management is a first-class construction quality assurance, in the process of construction and acceptance must be clear responsibility, strict supervision of each link, to ensure that in accordance with the implementation of early design, reduce errors.