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The future competition trend of electromechanical installation enterprises is the competition of technology and talents (including blue-collar and white-collar workers). The technology referred to here is multifaceted, including the technical reserves and experience of the enterprise. Every professional enterprise that has been operating for many years, especially the purification engineering design and installation with special technical requirements, will encounter and accumulate a lot of valuable experience and setbacks in practice.
How to make full use of these valuable experiences, continuously improve and enrich the design and construction team, adapt to user needs to the greatest extent, and avoid repeated elimination errors, this is a problem that excellent entrepreneurs and teams have to think about.
(Figure 1: cleanroom)
Introduction
For an engineering project, from project construction bidding to construction and installation completion and commissioning, this process is called the construction stage in the three stages of the engineering project. A large-scale installation company has to undertake dozens to hundreds of such engineering projects every year. It can be imagined that the workload and content faced by the engineering project department are extremely large, and the problems that arise are diverse, and the methods of handling are also diverse and uneven due to experience and ability reasons, environmental and indicator reasons, owner's human reasons, etc.
Information collection on problems and satisfactory solutions in design and construction
We often say that as long as you work and do things, you will make mistakes. Collecting mistakes made in previous work is not for other reasons, but for improvement! Avoid making mistakes again in the future. This is a measure and means for enterprises to reduce costs and increase efficiency, and improve technical and management levels. More importantly, it is necessary to summarize and record how to improve the process and solve these problems.
For example, for air-conditioning systems such as laboratories, temperature and humidity control is often unstable, especially in the early summer season in the Jiangnan area, where the chiller frequently shuts down automatically for protection. Experience tells us that in the design of water systems, when there are large changes in working conditions and short pipeline paths, a set of temperature-stabilized compensation water storage tanks must be added to stabilize the temperature fluctuations of the water system and reduce the frequency of start-up and shutdown of the chiller. If we do not summarize, conduct system training and project review, this undesirable situation will occur repeatedly.
For another example, the graphic design in the clean area generally involves the cooperation of multiple disciplines. Our requirement is to unify and coordinate the splicing of the top plate, the location of the air outlet and the arrangement of lighting fixtures in this area. This also covers technology and know-how. If we do not summarize, generalize and improve, we will always stay at the primary level and it will be difficult to adapt to the needs of today's market and users. It can be seen that we not only need to collect the deficiencies and errors in the implementation of engineering projects, but also constantly collect and summarize the experience and tips in practice.
With more collection, we can start to establish a complete and comprehensive document library and classify it. This can lead a group of young employees to grow rapidly.
Classification management and document establishment
(Figure 2: File classification management)
Professional members composed of senior engineers will review and review the completion data of each engineering project and each time interval, and require the incomplete and incomplete data to be returned to the project team, requiring them to be supplemented and improved within the specified time to meet the archiving requirements. The large amount of information and data collected can be classified and archived.
We can establish categories such as pharmaceutical production, microElectronics production, precision machinery, experiments, hospital operating departments and ICU wards. Each category can also be subdivided according to their respective process characteristics.
For example, the pharmaceutical production category can be further divided into: APIs, solid preparations, large infusions, freeze-dried powder injections, etc.; the microelectronics industry can be further divided into: large-scale integrated circuit board production, liquid crystal display production, solar photovoltaic panel production, laser transmitter production, etc.; laboratories can be divided into: general physical and chemical laboratories, biological laboratories, experimental animal rooms, negative pressure A Shang wards, lithium battery production laboratories, etc. In short, classification is for easy query.
Easy to query, highlight the key points
After the document is established, it is necessary to be able to find the key points, to be able to find the needs of the reviewer, and to make the reviewer gain something.
To this end, the content of each completion document is required to be refined. That is, where are the technical key points and technical difficulties in the project? How many difficulties are there? How many have been solved? How to solve them? All of them must be described in detail. Especially the problems that often occur. After refining and summarizing all the projects involved, various prominent points can be sorted out in categories.
(Figure 3: Ozone generator)
Example 1: Regarding the ozone generator, it can be described as follows: the ozone generator can be divided into two types: external and built-in. The built-in type has a simple structure, low cost, and is easy to install, but has a short service life. Generally, the "board" needs to be replaced every 1 to 2 years. The external type is just the opposite. It has stable and reliable performance. One set of equipment can serve 1 to 3 air conditioning units (systems). It has a complex structure, requires cooling water, is expensive, and takes up some space for installation. The fields that require the configuration of ozone generators include the entire pharmaceutical industry; hospital operating rooms, configuration centers and ICUs, negative pressure isolation wards, gynecological delivery rooms and other areas; physical and chemical laboratories, biological laboratories, animal rooms and other environments. In addition, the installation location of the built-in ozone generator is also particular. It should not be installed after the surface cooling section and humidification section, and even avoid installation before and after the medium-efficiency section. The reason is that moisture and high humidity will directly affect the service life of the built-in circuit board.
Example 2: Purification Air conditioning system, design points for the room return air outlet:
The number and size can be determined according to the indoor air supply volume (return Air volume), as well as the size of the room area and the distance from the air supply outlet.
Calculation of the Wind speed of the air outlet section. It is important to remember that the conventionally calculated cross-sectional wind speed v1=Q1/3600A (where A is the opening area of the air outlet axb) is not comprehensive enough and must be multiplied by a windward coefficient n. That is, v=nxv1, which is often overlooked.
The value of n is 0.7 when the opening area A(axb)20.1; 0.6 when the opening area is 0.1>A20.064 (specification 320x200); 0.4 when the opening area A<0.064
The value of v after correction should be controlled within 1.5m/s.
The direction of the air outlet louver requires that the return air outlet blades in the hospital operating room must be vertical, and the return air outlet blades in other areas and rooms must be horizontal or determined according to the needs of the owner. There are many similar key points. If we sort them out and refine them one by one, we will form a knowledge treasure house of the enterprise. If we make full use of them, we can avoid detours and mistakes, and the reputation and strength of the enterprise can be revealed.
(Figure 4: Clean room purification air conditioning system)
In today's world of rapid technological development, competition is everywhere, and the product replacement cycle is getting shorter and shorter. To survive and develop, we must rely on innovation. Similarly, the purification engineering and electromechanical installation industries that rely on the development of industries and products must also improve in order to survive and develop. They rely on a series of advantages such as excellent personnel quality, superb and skilled design and construction skills, excellent quality and after-sales service to support them.
