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4499743 Clothing drycleaning machine
New Patents 4493366 MEANS FOR RECOVERING HEAT FROM A ROOM SPACE, AND FOR VENTILATION Heinz Ekman, Kirkkonummi, Finland assigned to Verdal Maskinverksted A/S 12 9
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A means for recovering the heat of a room space and for ventilation, consisting of at least two heat accumulators, to which the outgoing air delivers its heat and from which the incoming air takes up heat, and each of which has one end connected to the room space outflow duct and inflow duct, in which ducts the direction of flow is always the same under control by a flap. The opposite ends of the heat accumulators have been connected to the fresh air intake duct and to the outgoing exit duct, in which ducts the direction of flow is always the same under control by another flap•
m
gas w~thdrawn from the vessel with the oxygen, typically by reintroduct, on of gas w~thdrawn from an upper gas portion (43) of the vessel, after introduction of additmnal oxygen, for example controlled by a valve (65) into a lower portion of the contents of the aerauon chamber. Control can be effected automatacally, by a control unit (55, 55') through a valve (51, 51') or manually; automatic control can be effected, for example, by sensing oxygen or carbon dioxide concentration by suitable sensors (57, 59) within the vessel. To permit recovery of methane of high quality in a subsequent decomposmon and methane recovery container, material withdrawn from the aeration vessel is degassed m degassmg chambers (68; 69, 70), for example by storage for about 1/2 hour, and venting of emanating gases. Control of valves regulating flow from, and to, the aerating vessel and the degassing chambers (69, 70) permits preheating of freshly introduced refuse by the material withdrawn from the degassing chambers m a eounterflow heat exchanger (17'), while preventing possible escape of nonaerated substances from the vessel (11) by isolating the aeration vessel (il) during introduction of new refuse, and emptying only a chamber (e.g. 69) of said degassing chamber system (68). 4499743
~93~0
CLOTHING DRYCLEANING MACHINE
METHOD AND SYSTEM OF GENERATING HEAT BY BIOLOGICAL DECOMPOSITION OF ORGANIC REFUSE
Gm Maestrelli, MaestreUi S P A
Milan,
Italy
assigned
to
Guy Moilliet, Grabs, Switzerland assigned to UTB Umwelttechnik Buchs AG ~ - - ~ , ~ ' ~ ,, 'l~slr~":~ll
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Heat can be recovered by biological generation of heat upon aeration of refuse, such as garbage or sludge, m an aeraUon vessel (11) by introducing oxygen-containing gas, such as air, in a closed cycle (11, 33, 31, 35) to thereby enrich
A clothing drycleaning machine of the so-called closed circuit type, has a pneumatic circuit for the drying and solvent recovering air which is always closed on the drum wherein clothing articles to be cleaned are introduced. The circuit comprises at least one air circulation fan, at least one evaporator of a refrigerating equipment for
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N e w Patents
cooling the air coming from the drum and condensing the solvent therein contained, and at least one condenser in the refrigerating eqmpmerit arranged downstream of the evaporator for heating the mr to be recirculated in the drum. To obtain optimum conditmns for energy yield and to emphasize the solvent recovery phase, at least one heat exchanger is prowded to carry-out a heat exchange between mr flows upstream and respectively downstream of the evaporator of the refrigerating equipment; further, the refrigerating equipment comprises means for controlling the heating efficiency of its condenser and/or the refrigerating efficiency of its evaporator depending on the des]red atr temperatures and flow rates dunng the drying and solvent recovering phases
the central portion of each solution tube m the second row is avoided advantageously
4499859
In plate heat exchangers the dlsmanthng of the pack of plates is a lengthy job which normally has to be carried out in sltu A plate heat exchanger has a frame including a head (3), a supporting pillar (7) and a movable follower (4) mounted on a top rail (2) extending between the head (3) and pillar (7) which also carries the plate pack (1). In accordance with the invenUon, the top rail (2) is readily releasable therefrom by bolts (13) whereby the whole plate pack (1) may be lifted clear of the frame. The follower (4) may be temporarily accommodated on the supporting pillar (7) by clamping means (10) and the roller (5) removed• The top rail may be prov.ded with means for attachment of lifting shackles (11).
VAPOR GENERATOR Akir Nishiguchi, Sanpei Usui, Tomihisa Oouchi, Kazumi Iwm, Ibaraki, Japan assigned to Hitachi Ltd rl 3 3 21B
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A vapor generator for use in, for example, an absorption type water cooler or heater. The vapor generator having a burner secuon and a boder section, the boiler secUon being constituted by an outer casing, an inner casing &sposed in the outer casing, and a multiplicity of soluuon tubes attached in rows to the inner surfaces of wall of the inner casing so as to extend substantially vertically. The interior of the tubes is in communication with a space accommodating a medium to be heated and defined between the inner casing and outer casing A multiplicity of fins are attached to the inner surfaces of walls of the tuner casing in the area around the flame formed by the burner section so as to increase the rate of heat transfer to the me&urn in the above-mentioned space from the gas in the combustion chamber The axis of each of the solution tubes m a second row is offset from the line which extends m parallel with the flow of gas from the midst of the gap between two adjacent solution pipes in a first row located upstream from the second row as viewed in the direction of flow of gas, so that overheating of
4499942 PLATE HEAT EXCHANGER John Alhson, Crawley, United Kingdom assigned to The A P V Company Limited 2r• ~
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4501122 LIQUID PISTON HEAT PUMP Donald R Cutler assigned to Chicago Bridge & Iron Company 2...'4
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This disclosure relates to a heat pump including a plurality of interconnected elements, each of said elements comprising a piston body having an evaporator section at one end thereof and a condenser section at the other end thereof, each condenser section being connected to a vapor condenser. Each element has its evaporator sec-
2
t~ 6 17
. ~ J h...__~_~._~Pi j~s_
A means for recovering the heat of a room space and for ventilation, consisting of at least two heat accumulators, to which the outgoing air delivers its heat and from which the incoming air takes up heat, and each of which has one end connected to the room space outflow duct and inflow duct, in which ducts the direction of flow is always the same under control by a flap. The opposite ends of the heat accumulators have been connected to the fresh air intake duct and to the outgoing exit duct, in which ducts the direction of flow is always the same under control by another flap•
m
gas w~thdrawn from the vessel with the oxygen, typically by reintroduct, on of gas w~thdrawn from an upper gas portion (43) of the vessel, after introduction of additmnal oxygen, for example controlled by a valve (65) into a lower portion of the contents of the aerauon chamber. Control can be effected automatacally, by a control unit (55, 55') through a valve (51, 51') or manually; automatic control can be effected, for example, by sensing oxygen or carbon dioxide concentration by suitable sensors (57, 59) within the vessel. To permit recovery of methane of high quality in a subsequent decomposmon and methane recovery container, material withdrawn from the aeration vessel is degassed m degassmg chambers (68; 69, 70), for example by storage for about 1/2 hour, and venting of emanating gases. Control of valves regulating flow from, and to, the aerating vessel and the degassing chambers (69, 70) permits preheating of freshly introduced refuse by the material withdrawn from the degassing chambers m a eounterflow heat exchanger (17'), while preventing possible escape of nonaerated substances from the vessel (11) by isolating the aeration vessel (il) during introduction of new refuse, and emptying only a chamber (e.g. 69) of said degassing chamber system (68). 4499743
~93~0
CLOTHING DRYCLEANING MACHINE
METHOD AND SYSTEM OF GENERATING HEAT BY BIOLOGICAL DECOMPOSITION OF ORGANIC REFUSE
Gm Maestrelli, MaestreUi S P A
Milan,
Italy
assigned
to
Guy Moilliet, Grabs, Switzerland assigned to UTB Umwelttechnik Buchs AG ~ - - ~ , ~ ' ~ ,, 'l~slr~":~ll
Z i
-~'1"
wit,
.~-.iif~, g2
2o
~dO
Heat can be recovered by biological generation of heat upon aeration of refuse, such as garbage or sludge, m an aeraUon vessel (11) by introducing oxygen-containing gas, such as air, in a closed cycle (11, 33, 31, 35) to thereby enrich
A clothing drycleaning machine of the so-called closed circuit type, has a pneumatic circuit for the drying and solvent recovering air which is always closed on the drum wherein clothing articles to be cleaned are introduced. The circuit comprises at least one air circulation fan, at least one evaporator of a refrigerating equipment for
~v
N e w Patents
cooling the air coming from the drum and condensing the solvent therein contained, and at least one condenser in the refrigerating eqmpmerit arranged downstream of the evaporator for heating the mr to be recirculated in the drum. To obtain optimum conditmns for energy yield and to emphasize the solvent recovery phase, at least one heat exchanger is prowded to carry-out a heat exchange between mr flows upstream and respectively downstream of the evaporator of the refrigerating equipment; further, the refrigerating equipment comprises means for controlling the heating efficiency of its condenser and/or the refrigerating efficiency of its evaporator depending on the des]red atr temperatures and flow rates dunng the drying and solvent recovering phases
the central portion of each solution tube m the second row is avoided advantageously
4499859
In plate heat exchangers the dlsmanthng of the pack of plates is a lengthy job which normally has to be carried out in sltu A plate heat exchanger has a frame including a head (3), a supporting pillar (7) and a movable follower (4) mounted on a top rail (2) extending between the head (3) and pillar (7) which also carries the plate pack (1). In accordance with the invenUon, the top rail (2) is readily releasable therefrom by bolts (13) whereby the whole plate pack (1) may be lifted clear of the frame. The follower (4) may be temporarily accommodated on the supporting pillar (7) by clamping means (10) and the roller (5) removed• The top rail may be prov.ded with means for attachment of lifting shackles (11).
VAPOR GENERATOR Akir Nishiguchi, Sanpei Usui, Tomihisa Oouchi, Kazumi Iwm, Ibaraki, Japan assigned to Hitachi Ltd rl 3 3 21B
24
2~" rr¢ ?'i~'~ "~' ) 2 ~ rI
~ ;,, i ~ ~ I
21F ~
°o~°' ,~o~ j
._._-----~o ~ , ~ , _ o 2 m ~ , 2 4 2" ~ 2 ~ 1 ' - ~ 2
.~-!
1 22.1:1
23B
21C
,a-~,
A vapor generator for use in, for example, an absorption type water cooler or heater. The vapor generator having a burner secuon and a boder section, the boiler secUon being constituted by an outer casing, an inner casing &sposed in the outer casing, and a multiplicity of soluuon tubes attached in rows to the inner surfaces of wall of the inner casing so as to extend substantially vertically. The interior of the tubes is in communication with a space accommodating a medium to be heated and defined between the inner casing and outer casing A multiplicity of fins are attached to the inner surfaces of walls of the tuner casing in the area around the flame formed by the burner section so as to increase the rate of heat transfer to the me&urn in the above-mentioned space from the gas in the combustion chamber The axis of each of the solution tubes m a second row is offset from the line which extends m parallel with the flow of gas from the midst of the gap between two adjacent solution pipes in a first row located upstream from the second row as viewed in the direction of flow of gas, so that overheating of
4499942 PLATE HEAT EXCHANGER John Alhson, Crawley, United Kingdom assigned to The A P V Company Limited 2r• ~
~2 t
5 ,12
~3
3~
:
,.L,
l
4501122 LIQUID PISTON HEAT PUMP Donald R Cutler assigned to Chicago Bridge & Iron Company 2...'4
'flT.i ,~ff,]= ~. ~'=-,,t
,,
,-
-E
-,,
,,
,;'TJ
,
r t,,
"
This disclosure relates to a heat pump including a plurality of interconnected elements, each of said elements comprising a piston body having an evaporator section at one end thereof and a condenser section at the other end thereof, each condenser section being connected to a vapor condenser. Each element has its evaporator sec-