GREY WATER HEAT RECOVERY SYSTEM

DISPOSITIF DE RECUPERATION DE CHALEUR POUR EAUX MENAGERES

English Abstract

With oil reaching new price record, it is becoming very important to come up
with innovative
ideas to conserve energy. Thermal energy cost twice as much as the electrical
energy in
multi-unit residential buildings and condominiums.
The idea of renewable energy is becoming very popular in the construction
business; whether
the envelope more efficient :(better walls and roof insulation, more efficient
or by fresh air heat recovery through an air exchanger. Boilers are becoming
more efficient and energy efficient lights are becoming more popular everyday.
However, during the hours of the morning and the evenings. where multiple
showers, baths or
dishwashers are at peak, tremendous, amounts of hot water are going down, the
drains wasted in
the city sewage system.
The new GWHR "Grey Water Heat Recovery" will trap the previously wasted water
in an
insulated tank for a period of time to allow the grey water to exchange heat
with the cold water
before it leaves the tank and heads to the boiler.
This procedure will raise the temperature of the cold water entering the
boiler, and extract
some of the wasted hot water before the grey water leaves to the city sewage
system.

Claims

Claim:
The embodiments of the invention in which an exclusive property or privilege
is claimed are
defined as follows and shown on attached drawing.
A method of the holding tank 1 is installed between the building and the city
sewage
system allowing us to capture the wasted water for a period of time allowing
for heat
exchanging is illustrated in FIGS 1.
A method of installing a 6 or in pipe 2 carrying the sewage water from the
building will
enter the thank 1. The pipe is usually on a slope of 1/50.
A method of installing a 6 inch vent 3 will be located at the top of the
sewage pipe as
illustrated in FIGS1.
A method of installing an extended pipe 4 will drain the sewer line to the
bottom of the
tank. This way, the warm water from the building will stay in the tank for a
maximum
amount of time before it floats to the top where it is drained out to the city
sewage system
via pipe 6.
A method to extend the pipe 4 to a distance 7 from the bottom of the thank 1
A method to discharge via pipe 6 the grey water to the city sewage system
after most of the
heat is been recovered . This pipe 6 has, a slope of 1/50.
A method to implement the use of a heat exchanger system 10 to recover heat
from the
grey water medium.

Description

CA 02578642 2007-01-30
;; ;( i;Tl~~NS,
11;r priaw,ry obj4cti%L is to m1iably, Qfet~~ ad in ti ;uida61~ Tnap r.K-r c-
;ta~..~. energy fmm the
witer ~:t~ ~ ra~~ 113;1i 4 r;~~rg~' tty pm-h~.at the water before it ila,~
Ix)sler:
1 _(l ~.D Of' I N" } "-I'.~'I( aN
Fih~2 :iravci; ion 10 110t UMc~r hta:t rrcOven= and more }sart:.,~,z :~1; it
'1_1faing k)
~~e s~.L t~k_.4v4=''4 iY:r'~' ~ . ,~~~4=l.~ ~I,'74, 1'4 ..._'r = 'r4~'..~i
,i~:~,~: _
~i~ ARY 1HlC: ~NV# N-t01r,
i Lr cNN,.ti~lC and,~Jje, j--~ ~t2Cover~ ~~A~:~s art the target, ot high
demand wi:tli oi:'1 prices
orl t h c , rii 17t atiA liot xvdtcr froffl ShtavueT-,,, br~tc%, .kaundry and
disl;awast~~ne, ar~:. trAitional]y
l,eirt~; Aa.,ud %vatercarrics.a large amount ~.~k therk-tial eti.~~gv and i;s
not bc-ing
r=, ~~~~=s ra:~.
4~t: GrL~_ =r 'lcat i'eeoven' Sy~1err, v; :f! allow us to tra-p the
~a....,FrLI ' Ltrr li r 4Tor,301, '
t+7 GNIra%r. lh),1t 41.-'ac '~t~ltlr~ it is bL.-eil dr'8:ir:cd iltto the eit4'
w~wave s~:..t4m , . "I'ic cx:r.:m.1A =l,:ir
will be used tcs pm-~ea1 the cold w.a.2et F4:turt~ cntcring the boiler,
lvhi,4,h ject'c1:~~<-, thc
I~tw l5ur she boiier= tfi ftertt ihr,%r'ater , Thrrcfbre_ tftc Watw,r
lfeatitrv Pra.7cess WHL e.==I~S-:t3T,(~ 1 .:s's.
~--.
s4v. e. mt 1~?ssal fuel eoa.t attd rt(luc es in GHG emissiQn&
~. ~

CA 02578642 2007-01-30
+1; IIir3lts tIF 1"1I1 (WAV'CO?'~
I ho ."i!o \ot% ". y: ill'd t'YC:4 \bdls ; t o=71m 's1rm b([tld1ngt'lil plpS
2. 3 hC'C[JY"_. tfis' ~C7rii P(ll'(1+3r7
.i,l-d -4 ?I"1c ~'~lt'Il~i~trl of thk: ;.2lsihai'k t 1711t tt', !t'
cxCendc'.li !lE) $d's cl i:jlmidi&lt:e 7 ir'i!It3 tfYC b0tlol?i t>2
t17e holeiin tank t. l iit di,i:h<srge ;; cFirricrf % i m :. Fipe 6 tt, hc
citk scurr lnn: l ie tmvr;wy ir., ;fat:
t1t:' ~ioiding t::iiil, T i; ravve.r._d b3 thc circuhtitEn >t.?f'le gyTot it4i-
'y 'ts'}tc,~3e tlw t1o+,a ~~$ _~1 tdw
er is achieved via 4 aitA e:.it t'tl:: }l:.at etc.hangt<.'r via 9
1'Ã11',4:'CrOSURF-'c.* I 1 I1 INYUNTrO?~r
! 1= , ~ti ~ ~t i " to 1lt,f~10t ,erlt t131e (.tWE IR .ina rea:cltier hc.a(
1roai~ ~~~~ ~Aoc}-cr,,. Nth. ;.trtul
N:1,ti7c it e'(4Xb:rs Ãh: Cgty sL'Q~~~c !~yS~t';AI'E.
i'r~t cmt-~odinitirynt
~ "IC'idtn, tank is i11oalcJ tfct04Ct11 the k?tltW:11g a.nfi tht city
SC'tt",{ge "''ytiten1 aIli?vus 1!,?
età ~tt 9t L-1ti 1ti:Ã;44.~ ~%at4-r Ior ~i puloiS 47C flme aClow]lig fCit'
)F3E:it c.\tiha1"y7i1g a'+ Eli11~t1';it~.gA il:
I:It~ti ~
A vn~&omNatrrient
:'<< r. ..l h,.L Qc?ra7~ ingtf~~~ ~ vwage water Emnt Oc- brtddirti.,
;1h:ritcÃ-th'tmuE, 1. Vfli'~
;)ipc it-; ir;Flt;il~~ ;:sr-, t! Stktpe
A thir~tl CM11;")diMCfjt
!~r . qt h b c:it 3 4.ill br: lk)~',stQd ÃÃÃ the ttip olRthe sewage pa}x- 3.~
illu,,:ruled in FIGS I
,A tor?>aF e(ll hi7dir51en1
A11 vtte'mk;s pOe ~vOU d.*;attt the the sturr ]t4tc t~.~ the }o$ton2 Cik the
tLiC+k, I'Ijl:; tllt:.
"t5~~7"tt~1' 1t'tlw 1hx- f?kllfdlt3g l~]il tita?r in t}lt' ia.l"lk: tbr ft
tl;sl;KiTTiunt .i[t]ouL5[ -of tltl'it: b4::ore tt
Ilo:li~ $i, 0,c IC'rp rklatTz~ lt. !ti dn32T1i' d ttift it;? the 6.'lly
4:wagd: s"R'~~ent.
,A t1It}, crtlh~aydIr'<1cClt
li~ luccod Pire 4 is extended to a dh%mct' 7 fir~.~m the bott~~ of the tmk I
k ,iNt(; c i;tl'+udirslent
( :in dlwhai _'e ;4tk)ti 6 4tiill Z';trry the LCi'~ G'a3ter tt't thv 6ty
sc'4tiFag4 system alYeI' )lle'.?St k7: tll
heat i~, beL.=i rc~e~. l'ttis pafx:: has a slope of 1f?09.

CA 02578642 2007-01-30
bni;l en-ibcsdinient
'I'f~~ ast~ ofa hcaà cxc~anpee system 10 t0 recovor beat from the grey ak=ater
medium.

Representative Drawing