Water cooler abstract
A cooling tank for a water cooler, comprising a housing for holding
water, having set therein a condensing coil which is uniformly arranged
around the inner wall surface of said housing with one end connected
to the expansion valve of said water cooler and an opposite end
connected to the compressor of said water cooler for circulation
of cooling medium, and a plurality of coil-shaped water pipes which
are separately mounted in said housing with each two opposite ends
respectively connected to an independent inlet valve and an independent
outlet valve mounted on said housing at the outside. A plurality
of reservoirs are separately connected to the inlet and outlet valves
of each coil-shaped water pipes so that the liquid from each reservoir
can be separately pumped into the coil-shaped water pipes for circulation
through the cooling tank for cooling.
Water cooler claims
What is claimed is:
1. For a water cooler, a cooling tank comprising:
a housing for holding water;
a condensing coil uniformly arranged around the inner wall surface
of said housing, having an inlet at one end connected to an expansion
valve of said water cooler and an outlet at an opposite end connected
to a compressor of said water cooler for circulation of cooling
medium;
a plurality of coil-shaped water pipes separately mounted in said
housing, having each two opposite ends respectively connected to
respective inlet valves and outlet valves mounted on said housing
at the outside; and
wherein a plurality of reservoirs can be respectively connected
to the inlet and outlet valves of said coil-shaped water pipes permitting
the liquid from each of said reservoirs to be separately pumped
into said coil-shaped water pipes for circulation through said cooling
tank for cooling.
Water cooler description
BACKGROUND OF THE INVENTION
The present invention relates to cooling tanks, and more particularly
relates to a cooling tank for a water cooler for cooling liquid
from separate water reservoirs at the same time.
FIG. 1 illustrates a water cooling system according to the prior
art, in which cooling water is pumped from a cooling water tower
2 for circulation through a water coooler 1 to absorb the heat from
the cooling medium which circulates in a condensing coil 8 inside
a cooling tank 5' set in said water cooler 1 to make heat exchange
with the water pumped from a water reservoir 6 for circulation through
said cooling tank 5'. Disadvantage of this structure of water cooling
system is that the water cooler can only be used for cooling the
liquid from a reservoir. For cooling different liquid from two or
more water reservoirs, two or more condensing coils must be separately
installed inside a water cooler or two or more water coolers must
be simultaneously used. It is very expensive and difficult to install
several condensing coils in a water cooler or several water coolers
in a water cooling system.
SUMMARY OF THE INVENTION
The present invention has been accomplished under the circumstances
in view. It is therefore the main object of the present invention
to provide a water cooling tank for a water cooler which can be
conveniently alternatively controlled to simultaneously cool down
different liquid from separate reservoirs.
It is another object of the present invention to provide a water
cooling tank for a water cooler which is inexpensive to manufacture.
According to the present invention, there is provided a cooling
tank for a water cooler which is generally comprised of a housing
for holding water, having set therein a condensing coil and a plurality
of coil-shaped water pipes. The condensing coil is uniformly arranged
around the inner wall surface of the housing, having an inlet at
one end connected to the expansion valve of the water cooler and
an outlet at an opposite end connected to the compressor of the
water cooler for circulation of cooling medium. The coil-shaped
water pipes are separately mounted in the housing, having each two
opposite ends respectively connected to an independent inlet valve
and an independent outlet valve mounted on the housing at the outside.
A plurality of reservoirs are separately connected to the inlet
and outlet valves of each coil-shaped water pipes so that the liquid
from each reservoir can be separately pumped into the coil-shaped
water pipes for circulation through the cooling tank for cooling.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 illustrates a water cooling system according to the prior
art;
FIG. 2 is a perspective view of a water cooling tank embodying
the present invention; and
FIG. 3 illustrates a water cooling system constructed according
to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIGS. 2 and 3 a water cooling tank 5 which is provided
for holding the cooling water which is pumped from a cooling water
tower 2 by a water pump 4 comprises a condensing coil 8 uniformly
arranged around the inner wall surface thereof for circulation of
cooling medium, for examples, the freon. A plurality of coils 9
are arranged inside the water cooling tank 5 for circulation therethrough
of liquid from separate reservoirs permitting said liquid to be
separately cooled down by the cooling water kept in the water cooling
tank 5. Each coil 9 has two opposite ends respectively connected
to an independent inlet valve 91 and an independent outlet valve
92 which inlet and outlet valves 91 and 92 are mounted on the housing
of the water cooling tank 5 and respectively connected to an independent
chemical liquid reservoir 7 which has a water pump 3 attached thereto
to pump the chemical liquid contained therein for circulation through
the coil 9 permitting the chemical liquid to be cooled down by the
cooling water contained in the water cooling tank 5.
When in use, a user can connect the water cooling tank 5 to a water
reservoir 6 or plurality of chemical liquid reservoirs 7 which
water reservoir 6 can be used for fish farming. When in operation,
the cooling medium in the water cooler 1 is circulating through
the condensing coil 8 in the cooling tank 5 to absorb the heat from
the water kept in the cooling tank 5 so as to drop the temperature
of the water. The chemical liquid from each chemical liquid reservoir
7 or the water from the water reservoir 6 is separately pumped into
the coils 9 by a water pump 3 for circulation through the cooling
tank 5. While passing through the cooling tank 5 the heat of the
water from the water reservoir 6 or the chemical liquid from the
chemical liquid reservoirs 7 is simultaneously absorbed by the cooling
water in the cooling tank 5. Because the coils 9 have each an independent
inlet valve 91 and outlet valve 92 the coils can be separately
alternatively controlled for cooling down the chemical liquid from
the chemical liquid reservoirs 7 according to requirements. |