A Summary of Technical Requirements for Cleaner Plant Construction of Lithium Batteries
Author: Zhuo for air-conditioning purification Electromechanical Engineering Co., Ltd
Published:2017-09-18 16:10:56Views:2989【SML】
In recent years, with the rise of new energy electric vehicle industry, driven by the rapid development of power battery production enterprises, but also led to the lithium battery clean room construction needs. More enterprises involved in this industry
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In
recent years, with the rise of new energy electric vehicle industry,
driven by the rapid development of power battery production enterprises,
but also led to the lithium battery clean room construction needs. More enterprises involved in this industry, the construction of
the plant to stay in accordance with the stage of gourd painting scoop,
or fear of blindly raise the construction requirements, and ultimately
lead to the construction process often appear side edge of the
situation, resulting in investment waste.
In order to make potential investment enterprises understand the
basic construction needs of lithium clean room, to avoid blind
investment, the following were from the plant structure, fire, interior,
air conditioning, process piping, electrical aspects of a brief
overview.
First, the plant structure
Plant sub-self-built plant and leasing plant, due to clean the
whole building area of lithium clean room, more difficult to find a
suitable plant rental, most companies choose self-built plant.
Self-built plant is divided into concrete frame structure and steel structure, each with advantages and disadvantages. Concrete structure is long, the investment budget is high, the use
cycle is long, suitable for long-term development of large and
medium-sized enterprises; steel structure plant construction period is
short, low investment budget, short use cycle, suitable for the rapid
development of small and medium enterprises.
No
matter what kind of structure of the plant, are not suitable for
building multi-storey buildings, and are required to fully consider the
foundation load, heavy floor, equipment room size, plant fire level. Equipment room and auxiliary space recommended to set a unified in a side or a concentrated area.
Second, fire
Due
to the special chemical properties of lithium materials, but also to
meet the fire acceptance requirements, in the case of saving investment
also need to take full account of the risk of prevention, this part of
the need to pay special attention. General plant for the C plant, fire covers smoke, spray, alarm, emergency lighting and so on.
Injection area, electrolyte storage area, high temperature housing
and other high risk areas, separate isolation fire partition, all kinds
of equipment to consider explosion-proof and corrosion-resistant
requirements.
Three, built
Wall layout to be integrated fire escape, flow of logistics channels, production equipment, and other factors. Production
equipment due to the different production materials (such as ternary
lithium, lithium iron phosphate, etc.) and the degree of automation
equipment or manufacturers of different sizes have different access. Construction units need to determine the product, production
equipment and then consider the overall layout, there are differences in
the adjustment.
Due
to the high temperature and low humidity environment, the choice of
partitions, ceilings, doors and windows should be noted. High temperature room is generally isolated partition, the use of rock wool board material, the door with fire doors. Low humidity area enclosure with rockwool board, ceiling vitreous
magnesite board, the door with a closed door, glass with double vacuum
glass window.
The ground can be ordinary epoxy floor, coated oven section no
purification grade requirements, the general solidification of the
ground can be, mixing and rolling areas have more heavy equipment, you
can consider the stainless steel tread plate ground.
Four, air conditioning
Lithium
clean plant general plant area is large, the total cooling load, the
need to comprehensively calculate the total cooling load in the region
to determine the cooling host cooling capacity and installation
location, taking into account the needs of energy-saving, cooling host
as far as possible in the freezing station, and fully consider the late
expansion Connect the reserved piping valve, and then through the chilled water pipe partition to send cold source. Northern provinces need to consider winter frost measures.
Lithium
clean plant and other industries is the biggest difference is a higher
humidity control requirements, dehumidification unit is to protect the
environment dew point of the core equipment. The choice of dehumidification units, the insulation of the
workshop envelope, duct airtight, the number of personnel, the workshop
control should be considered.
Dehumidification units as far as possible to choose the market
well-known brands, workshop wall ceiling strict construction technology,
doors and windows with custom-made closed type, ducts with angle iron
flange, injection and other low-humidity areas using stainless steel
duct.
Air
conditioning part of the control is recommended to use PLC control, in
order to facilitate the use of integrated installation in the air
conditioning control cabinet. Enterprises with investment budgets can also use central control, centralized monitoring.
Fifth, the process pipeline
Lithium
battery production process requires cooling water, compressed air,
nitrogen, vacuum, water supply and drainage, exhaust and so on. According to the equipment needs, the overall amount of
statistics, determine the equipment model and installation location,
according to the layout of production equipment and demand layout
pipeline.
The
need for attention to the trachea is due to the large area of the
plant, the pipeline loss is large, need to consider in the far end to
increase the gas tank and loop. Vacuum equipment and piping part of the need to distinguish between the electrolyte area and common areas.
Sixth, electrical
Lithium clean room production equipment and air conditioning and other auxiliary equipment more power consumption. Electrical installation and transformer size selection need to consider the overall electricity load. Power supply partition, the bridge to the grading control, etc.
for the convenience of post-maintenance and safety needs to be
considered.
Cabinet
circuit breakers and cables recommended the use of market-higher
brands, wire and cable are used flame retardant, threading pipe with
galvanized wire tube. Lighting part of the proposed use of LED light source, the
workshop part of the illumination control in the 250Lux to 300Lux left
and right illumination, warehouse and equipment room 100Lux left and
right illumination, emergency lighting by fire regulations and room
layout installation, and consider other overhaul lighting and
maintenance sockets.
Seven, summary
Due
to the stringent requirements of the battery production environment, we
must fully consider the design of the integrity and rationality of the
construction process of strict control, energy saving, production
technology and investment budget, taking into account the balance, to
ensure the smooth construction of lithium clean plant production. If you have more questions, please contact our professional cleaning engineer.
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