Operation

See also: Car Wash Bays - Installations Machinery High Pressure Self-Service

Hot water production

• The hot water generator is specially designed to meet large consumption demands.
• Storage-type domestic hot water generator with indirect heating.
• It includes control thermostats, thermometer and switches.
• Metal casing that is stove-enamelled after degreasing and passivation of the sheet metal.
• Heating body with flues made of steel.
• Each flue has a special steel turbulator.
• Domestic heat exchanger in solid stainless steel, ring-type with large heating surface.
• 18/10 nickel chromium stainless steel.
• The inner and outer cylinder of the exchanger is corrugated along the whole of its height.
• CFC-free, rigid polyurethane foam insulation, applied by spraying.
• Water-cooled combustion chamber.
• Factory-mounted neutral fluid supply device.
• Premix chamber burner (Blocgas).
• Operating pressure: primary 3 bar, secondary 10 bar.

Soap powder proportioning hopper

When required, a 100% stainless steel soap powder proportioning hopper is included. The amount of soap powder delivered to the hot water tank can be regulated to adapt to the customer’s requirements. Automatic adjustment of soap powder mixing, depending on the number of bays using this wash program. The more bays, the more soap is delivered and vice versa. It is equipped with a vibrator to stop soap from clumping inside the hopper and a stainless steel injection pump to take the soap and water mix from the hopper to the supply manifold of the pressure units. As a second option, there is an electronically controlled liquid soap injection pump.

Pressure units

The pressure units are equipped with a three-phase electric motor with F class insulation, which is either 2.2. Kw, 1000 rpm for 10 l/min or 3 Kw, 1500 rpm for 15 l/min and HAP ceramic piston pump. The pressure units are fitted with a pressure regulating valve, a manometer and a water inlet manifold. The pump bedplate is made of structural stainless steel section.

Supply manifolds for the different types of washing water are also mounted on the bedplate and they, in turn, have supply control electrovalves: two membrane electrovalves for the cold water programs and a stainless steel pneumatic electrovalve for the hot water program with soap, for each of the pressure units. An anti-freeze system is connected to this manifold. This system causes hot water to flow through the pipes, preventing the circuit from freezing when outside temperatures drop to below 0ºC.

Electric panel

Watertight metal cabinet with automata viewing window, according to current regulations, with the following elements:

• Siemens electronic programmable controller, which, in each bay, individually controls the external coin and token selectors, electro-mechanical operations carried out via contactors and relays, all of the washing operations and risk alarms and breakdown alarms. All of this is displayed on a text screen. All operations are carried out at 24 volts.
• Activation/deactivation of all installation elements by means of switches on the cabinet door, indicated with LED lights. Activation/deactivation of all of the installation elements, indicated by of LED lights. All control operations are carried out at 24V.
• Protection devices, circuit breakers, small automatic switches and fuses that protect all of the installation’s electric and electronic elements.
• Connection elements, rails furnished with connectors to connect the installation’s supply and control wiring.

Lighting and sockets

Watertight 2 x 65 w fluorescent light screens in washing bays (four in closed bays and two in open bays), in the machine room. Operated by means of watertight switches (one per wash bay), with the option of being able to install an automatic lighting system controlled by a timer and twilight switch. Schuko-type socket on electric panel with ground connection.

Power lines

All wiring is carried out with Aceflex 1000 V electrical hoses. Externally they are integrated into the structure and in the electrical room they are placed on cable trays with covers. The motor and electrical element connections have cable glands to ensure they are watertight.

Coin boxes

Watertight stainless steel cabinet with safety lock and a choice of two collection systems, either with a drawer in the cabinet itself or by means of a centralised coin vacuuming system, comprising the following elements:

Multi-coin electronic selector. It accepts coins that are current currency, Euros and tokens. Or fixed mechanical selector of tokens or coins - to be specified

• Wash programme selection pushbuttons:
• Hot water and soap wash
  • Rinse
  • High shine (reverse osmosis)
  • Emergency stop pushbutton.

Washing bay equipment:

Stainless steel 360º rotating arms located in the centre of the bay. Stainless steel power-wash lances with non-twist hoses. Broad range nozzle and anti-scratch guard. Stainless steel lance supports with non-leak systems.

WATER TREATMENT PLANT

Water softening and osmosis

Depending on the quality of the water supply there are specific technical considerations to be taken into account in the preparation and adapting of a study, however the following example describes the water treatment equipment required in the hypothetical example of a 3-washing bay installation with average quality water.
The purpose of the following technical study is to obtain high quality water using WATER SOFTENING techniques by ION EXCHANGE, based on intake water with an intake water hardness of 40ºF.

The final water quality can be adjusted to 0.5ºF (French degrees), however a salt content (Ca + 2 and Mg + 2) and HARDNESS of around 5 to 10ºF is recommended; for this purpose there is a bypass mixing valve.

The aim of the following technical study is to obtain high quality water using the REVERSE OSMOSIS technique, starting with intake water with a maximum electrical conductivity of 715 uS/cm.
This equipment is capable of producing 6,000 litres/day of osmosis water per membrane installed in model ESPA2 40/40 and 24,000 litres/day per membrane in model ESPA2 80/40, with an end quality of approx. 20 uS/cm.

The water treatment equipment designed and manufactured by Sistemas de Limpieza HAP is always mounted on a stainless steel bedplate and has a modular system that allows production to be increased. A further feature is its mixing system to obtain, at all times, the end water quality that is required.

SAND TRAP FILTER

(Only for installations with a high suspended solids content or well water, not included in this offer):
Special two-layer filter to retain suspended solids with load of organic matter.

• PVDF or polyamide bottle.
• Maximum working pressure: 8 bar.
• Maximum working temperature: 40ºC.
• Connection: 1.5"
• Maximum flow: 5,000 litres /hour.
• Filtering surface 0,29 m².
• Container size 61 x 203 cm.
• Silica load 230 Kg.
• Hydro anthracite load 62 Kg.
• Set of 4 manually-operated PVC ball shut-off valves or 6-position valve for washing and rinsing.

PRE-FILTERING

Transparent 20"" vessel with 1” connection with 25 micra disposable candle, maximum working pressure 8 bar.

Water softening filter

Operation: Twin volumetric with alternating operation.

• Bottle capacity: 150 litres per bottle.
• Resin load: 100 Kg/bottle.
• Valve: 1” Fleck 9000 volumetric with mechanical regeneration system including bypass.
• Design flow: 4 m³/hour.
• Cleaning capacity: 15,000 litres per bottle.
• Design hardness: 40º F.
• No. of bottles: Two carbon fibre bottles.
• Exchange resin: DDWHER-E (SE).
• Salt tank: HD polyethylene. 500 litres.
• Water softener size: 190 x 150 x 85 cm.

Example:

Average water hardness is 40 French degrees which means that there are 400 grams of calcium carbonate per m³ (1,000 litres).
Each litre of resin traps 60 grams of calcium carbonate.
This means that for every 100 litres there are 60 x 100, i.e. 6,000 grams of hardness.
6.000/400 = 15 m³, i.e., 15,000 litres per tank before each resin regeneration.
Maximum 15 x 8 regenerations/day = 120 m³ total filtering capacity of equipment per day.

This gives a maximum production of 5,000 litres per hour.

In each regeneration 180 grams of salt/litre of resin is used, i.e. 100 x 180 = 18,000 grams of salt per regeneration.

OSMOSIS PRODUCTION UNIT

Flow calculations have been carried out with water with more than 3,000 ppm of TDS and totally softened.

The osmosis production unit comprises the following elements:

Microfiltration

Microfiltration with 10"" vessels and 5-micra and 1-micron disposable candles, 8 bar maximum working pressure.

Dechlorination

• Operation: Dechlorination filter with 1” delayed time-clock valve.
• Valve: Fleck 5600.
• Volume: 30 litres of filtering material (high-absorption activated carbon coconut fibre).
• Flow: 1,200 litres/hour.
• No. of bottles: One PVDF bottle.
• Maximum working pressure: 8 bar.

Osmosis

• Minimum input pressure controller.
• Stainless steel pressure regulator and flow controller.
• Re-circulation tap in stainless steel.
• Two glycerin bath manometers.
• Two flow meters.
• Stainless steel membrane housing.
• Programmable flushing.
• Pump type: Multistage.
• Pump power: 2.2 Kw.
• Membranes: ESPA 2 model 40/40 and model 80/40.
• Production for model 40/40: 6,000 litres day. Per membrane installed.
• Production for model 80/40: 24,000 litres day. Per membrane installed.

SUPPLY UNITS AND TANKS

Mains water (installation highly recommended, not included in this offer).This supply unit is only installed when a mains water storage tank is fitted.

Softened water (depending on consumption): This supply unit will only be installed when a softened water storage tank is fitted.

Osmosis water: This unit should always be installed since osmosis water production is below consumption demand.

Tanks: Tank capacities will adapt to the needs of each installation. Tank models and shapes will suit customers’ requirements.

STRUCTURE (see installations)

• Whole structure in AISI-304 stainless steel with central technical booth.
• Closed bays (with barrel vault, self-bearing 10 mm thick, white translucent polycarbonate roof). Or flat roof with 30 mm thick insulated sandwich panel.
• Open bays for cleaning commercial vehicles with 360º rotating side arm and a useful height of 4.5 m.
• AISI 304 steel structure for washing cars and commercial vehicles, with central container (machine room).
• The installation will be 2.5 x 6 m for the container plus 4.5 x 6 m. per bay installed; the open bays will be 5 x 10 m, with a 5 m high mast with 360º rotating flag.
• The structure will be supported by 204 x 2 mm round stainless steel pillars, with a height of 3 m plus 1.3m of canopy.
• The base will stand on 250 x 250 x 10 stainless steel plates, to be fixed to the ground via four stainless steel M12 studs per pillar.
• The side separations between bays will be in 40 mm thick PVC with guides in the same material and 80 x 40 x 2 stainless steel sections attached to the pillars via four M8 screws at each end.
• The machine room is closed at each end by means of 2 screens and walls in the same material as the side separations, with an entry door at the front.
• The roof structure will be formed by load-bearing girders on which the u-shaped attachments of the arches that form the 10 mm-thick, self-bearing cell polycarbonate roof canopy rest (not fitted for flat roofs).
• As an option the whole carbon fibre contour can bear an image (customer’s choice of colour).

QUALITY FINISHES