Dehumidification air conditioning unit for civil air defense underground engineering

Dehumidification air conditioning unit for civil air defense underground engineeringOur company has professional design and manufacturing experience in air conditioning dehumidification equipment. After extensive basic research and data collection and analysis, we have developed a series of new dehumidification air conditioning equipment for underground engineering or similar underground engineering environments, which is suitable for*Places with both general air conditioning and dehumidification requirements, such as civil air defense projects, subway stations, aerospace bases, underground shopping malls, and underground entertainment centers.

Dehumidification air conditioning unit for civil air defense underground engineeringDCKThe series combination fully automatic water-cooled temperature regulating dehumidifier is a new generation of air handling unit designed by our company with excellent technology. This series of air handling unit can perform temperature control, dehumidification, purification, noise reduction and other treatments on the air. The unit has the characteristics of both performance and aesthetic appearance, and can be combined in a modular manner. The functional segments can be matched according to customer needs, and assembly and maintenance are convenient. To meet the special requirements of the installation site, in addition to horizontal combination, there are also vertical and hanging types available for selection.

This series of products adopts a new design concept and is tailored to the thermal and humidity load characteristics of underground engineering, And it has adopted a large number of new materials, technologies, and processes. The unit has both central air conditioning and dehumidifier functions, truly achieving multi-purpose use and various performance indicators, making it a pioneer in energy conservation and environmental protection in the new era.

Working principle: The operation of the dehumidification unit system consists of the internal circulation of the dehumidifier (refrigerant circulation system) and the external circulation of the dehumidifier (air circulation system);The internal circulation of a dehumidifier: through the operation of the compressor → discharging high-temperature and high-pressure gas from the exhaust port → entering the condenser for cooling → becoming low-temperature and high-pressure gas → intercepting flow through capillary tubes → becoming low-temperature and low-pressure liquid → evaporating and absorbing heat through the evaporator → returning to the compressor to become low-temperature and low-pressure gas, and so on. External circulation of dehumidifier: Under normal startup conditions → through the operation of the fan → humid air is sucked in from the inlet → passes through the evaporator → the evaporator adsorbs moisture in the air onto the aluminum sheet → becomes dry air (→ passes through the condenser for heat dissipation) → blows out from the outlet.

Introduction to Main Components-Water cooled dehumidifierDCK30-12

Temperature regulating dehumidifier

1framework

We use our company's specially molded aluminum alloy frame, matched with insulation rubber strips, to reduce the heat transfer of the cold bridgecompareSmall to prevent condensation on the outer frame of the profile. Inner steel plate fiberglass—ABSMade by connecting plastic corner pieces with self tapping screws. The panel connection is decorated with dedicated pressure strips to tightly fit the frame and panel into a flat surface. The basic framework is welded from steel sections or bent parts.

2panel

The panel adopts a non cold bridge design and a double-layer sandwich structure. The standard configuration is that the outer layer is galvanized sheet sprayed with plastic, and the inner layer is galvanized sheet. Polyurethane foam insulation material is injected between the double-sided panels. The standard panel thickness for small units is30mmThe large unit is50mmThe material and thickness of the panel can also be provided according to customer requirements, such as providing medium thick outer panel spraying or stainless steel panel, and a structure insulated with glass wool in the middle. The panel is tightly integrated with the frame, with a compact structure and smooth inner and outer surfaces, which is conducive to reducing dust deposition and facilitating cleaning.

3heat exchanger

Fin coil heat exchanger is an important component in wind cabinets, which uses coils to exchange heat between fluids (hot water, cold water, gaseous or liquid refrigerants) and air to achieve the required temperature (sometimes including humidity) state. The types of coils include water coils, superheated water coils, steam coils, and refrigerant direct expansion coils.

Using seamless copper tubes and pure aluminum fins14MPaWater pressure expansion tube is used to tightly bond the copper tube with the fins, ensuringSmall contact thermal resistance to exertHigh heat transfer efficiency. The coil computer selection calculation program can calculate parameters such as the number of rows, spacing, and number of circuits of the coil under demand conditionsOptimize the design to ensure it meets practical usage needs.

Coil standard is available2Arrange4Arrange6Arrange8Arrange12Available for selection, aluminum fin spacing2，2.5mmOther spacing specifications can also be provided. Alternatively, copper tube through copper sheet heat exchangers can be provided according to user needs.

4Water pan

There is a water tray under the heat exchange coil, which adopts a dry design to ensure the smooth discharge of condensed water. The exterior of the water tray is covered withPEInsulate to prevent condensation from occurring.

5filter

The choice of filter determines the quality of air that can be processed. We can provide different types of filter characteristics for selection, and can also choose to install accessories such as fluid pressure gauges, micro pressure displays, etc., and set pressure difference alarms. The internal space of the unit is sized according to standard filters150mmAs a module, it can be used on the ventilation sectionMaximize the arrangement of filters, effectively reduce the frontal wind speed of filters, improve the service life of filters, and reduce operating costs. The types of filters include: coarse efficiency filters, medium efficiency filters, all aluminum and stainless steel air filters, fiberglass flat filters, bag filters, activated carbon filters, anti salt filters, etc. Select according to the requirements of the usage location and filtration level.

lPrimary filter-Water cooled dehumidifierDCK30-12

Temperature regulating dehumidifier

adoptThe production of new polypropylene fiber filter material has the characteristics of large dust holding capacity, high filtration efficiency, and low resistance, making it an ideal choice for pre filters.

Efficiency selection:G3，G4two kinds

Type selection: Plate type and bag type, among which the plate type primary filter is available in aluminum frame type and paper type for selection.

lBag type medium efficiency filter:

Made of new composite artificial fiber materials, it has the characteristics of low resistance, large dust holding capacity, and long service life. Reasonable internal space dimensions can ensurebaoFilter usage cost up toLow.

Efficiency selection:F6，F7，F8，F9

Installation Type Selection: Mobile (Side Pull) and Fixed

l(Asia) High efficiency filter:

Made of ultra-fine glass fiber, low resistance and high efficiency. The filtration efficiency is provided according to customer requirements, and the filter is strictly configured according to its own wind speed requirements to ensurebaoThe normal operation and service life of the filter.

6fan

Adopting dual inlet and dual wide distance high-efficiency low-noise centrifugal fans, the fan bearings are selected as priority products, with self centering and self-locking functions. The dynamic balance accuracy of the wind turbine has reachedG4.0Significantly extend the service life of bearings. The fan selection software can select high-efficiency fans based on actual operating conditions,Ensure that the fan operates under high-efficiency and energy-saving "operating conditions". The entire fan unit is placed on the shock absorber bracket and connected to the box body through high-strength flame-retardant flexible joints.

7Fan drive

Standard adoptionVType belt transmission structure and useTaper LockBelt pulley with tight sleeve and narrow inletVBelt, narrowVThe wide sloping structure of the belt makes it more efficient than ordinaryVBelt has higher transmission efficiency and service life.

8motor

Adopting a three-phase squirrel cage AC motor,IP55Protection level,FGrade insulation. The motor is placed inside the fan section and, together with the fan, is mounted on a shock-absorbing bracket through a dedicated shock-absorbing pad. The bottom of the motor is equipped with an adjustment device, which can easily adjust the tightness of the belt.

9access door

The unit is equipped with maintenance doors for easy access, and the entire frame structure can be assembled and disassembled using simple tools. By loosening the panel, all parts can be removed for maintenance without compromising the robustness of the cabinet.

Large units can be equipped with maintenance lights inside, and maintenance windows can be installed on the maintenance doors.

10damper

According to user requirements, all aluminum dampers or galvanized dampers can be used, and dampers with sealing gaskets can be supplied at the edges of the valve blades and panel edges as needed. When the regulating valve is placed outside the box, the air valve is installed on the air conditioning box frame, otherwise it is installed on the air conditioning box panel.

Electric proportional control valves, fire dampers, etc. can also be configured according to user needs.

Product Parameters:DCK30-12