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Hot
water drilling equipment is another of our product lines.
This includes the smallest hot water drilling system available for
drilling holes in sea and glacial ice. This system’s boiler
and pump unit fit into a latched shipping-field container only 36
cm (14 in.) wide, 53 cm (21 in.) high by 58 cm (23 in.) long. The
box and boiler-pump unit weigh about 64 kg (140 lbs). The pump is
rated at 8 liters per minute (2.1 g/min.) and the boiler can produce
water of 80 to 90oC (175 to 195oF) depending
on flow rate and supply water temperature.
This small system is ideal for shallow drilling at remote sites
where shipment weight and portability are of concern. this system
requires power from a 2 - 3 kw electric generator.
A three section stainless steel drill rod is standard. the upper
section (75 to 100 cm long) is a heavy walled shaft, the mid section
(20 cm) is tapered and the lower section (7 - 10 cm) is the tapered
tip. The tip’s discharge orifice size depends on operator’s
preference. Tips can be provided with various size orifices. Additional
upper shaft lengths can be provided which thread into each preceding
section.
High pressure hose is available which is specifically SAE rated
for hot water use at 121oC (250oF) continuous
and 135oC (275oF) intermittent flow. (We do
not provide high pressure hydraulic hose as these hoses are not
rated for high temperature water use). The customer selects hose
length(s) and either 0.95 cm (3/4 in.) or 1.27 cm (1/2 in.) I.D.
hose. The former weighs 0.33 kg/m (0.225 lbs/ft) and the latter
weight 0.48 kg/m (0.32 lbs/ft). Customer also selects either plated
steel or stainless steel MPT (English pipe thread) hose end fittings.
Hot water drilling systems are tailor made to fit customer needs.
All boilers can use number 2 fuel oil, JP fuel or kerosene. However,
the former is the preferred fuel.
The following
photos show some of the hot water drill system configurations
provided to our customers.
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