EP0631097B1 - Cooling unit for coffins with detachable refrigerating plate and liquid recovery - Google Patents
Cooling unit for coffins with detachable refrigerating plate and liquid recovery Download PDFInfo
- Publication number
- EP0631097B1 EP0631097B1 EP94108336A EP94108336A EP0631097B1 EP 0631097 B1 EP0631097 B1 EP 0631097B1 EP 94108336 A EP94108336 A EP 94108336A EP 94108336 A EP94108336 A EP 94108336A EP 0631097 B1 EP0631097 B1 EP 0631097B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coil
- fluid
- cooling unit
- refrigerating
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G17/00—Coffins; Funeral wrappings; Funeral urns
- A61G17/002—Coffins with cooling arrangements for the corpse
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
Definitions
- the present invention concerns a cooling unit for coffins comprising a refrigerating circuit and a refrigerating plate which is in a situation of heat exchange with the interior of the coffin.
- the invention concerns a cooling unit of the above-mentioned kind wherein the cooling unit consists of a detachable coil which a heat exchange refrigerating fluid flows therein.
- the above embodiment includes a freon circulating cooling unit consisting of two parts, the first comprises all the elements of the refrigerating circuit, preferably contained in a transportable container, the second, namely the plate constituting the evaporator, consists of a preloaded coil connectable with, or detachable from the remaining part of the unit by means of rapid connections set up on the delivery and exit pipes to seal the corresponding parts of the refrigerating circuit after the relative detachment. All elements of the refrigerating circuit, with the exclusion of the plate, can be subsequently reused to be connected to another plate associated with another coffin.
- the plate is a disposable element and it is left in the coffin after the final closure thereof, involving therefore the loss of the freon contained therein. It has to be considered that the amount of freon contained into the evaporator, in the normal operating conditions, is remarkably higher than the preloaded amount at room temperature.
- freon is a polluting fluid.
- WO-A-8912792 relates to a method and apparatus to fully withdraw refrigerant from entire cooling unit, more specifically from an air conditioner installed on a car. It does not solve the problem to evacuate a part of the circuit only.
- FR-A-2539620 refers to a unit including a refrigerating system comprising two different circuits. It also provides a cooling apparatus in which a portion of the refrigerating circuit - the envelop - may be disconnected from the remaining part of the circuit to make the transportation easier.
- the reference does not disclose nor teach any refrigerating fluid withdrawal from the portion of the circuit to be disconnected.
- Another object of the present invention is to provide a cooling unit which allows to recover the excess fluid contained in the refrigerating plate before its detachment from the remaining part of the cooling unit.
- a further object of the present invention is to provide a cooling unit allowing to limit the fluid losses during detachment of the plate from the remaining part of the cooling unit.
- said second circuit coincides with the cooling circuit and the heat exchange fluid is a freon containing refrigerating fluid.
- the cooling circuit shown in Fig. 1 comprises therefore a compressor 1 delivering the fluid in the gaseous state to a condenser 3 though a pipe 2.
- the condenser 3 conventionally cooled by a fan 4, the fluid liquefies by condensation and is recovered in a tank 5.
- the fluid passes through a pipe 6 up to the inlet of a valve or an expansion capillary 7 whose outlet is then connected, through a delivery pipe 8, with the inlet pipe 9 of the evaporator 10.
- the reusable part of the cooling unit is contained in a transportable container 20 (shown in dotted line in Fig.1), while the refrigerating plate 25 comprises the evaporator 10 consisting of a refrigerating fluid preloaded flat coil 11, of the kind employed in the household refrigerators, known as roll-bond.
- the outlet pipe 12 of the coil 11 is then connected with the return pipe 13 carrying back the fluid to compressor 1.
- connection between pipes 8 and 9, as well as the connection between pipes 13 and 12, is achieved by means of rapid connections 14 connectable and detachable with respect to the corresponding rapid connections 15.
- a stop-valve 16 is provided on the refrigerating fluid delivery pipe upstream of the valve or the expansion capillary 7. This arrangement allows to discontinue the refrigerating fluid flow toward the evaporator 10 in a portion of the circuit in which said fluid is in liquid state.
- an automatic single-acting valve 17, acting as a nonreturn valve, is preferably provided, said valve allows the refrigerating plate 25 isolation from the remaining part of the circuit before its detachment.
- valve 16 In order to discharge the refrigerating fluid from the refrigerating plate 25, before disconnecting said plate from the remaining part of the circuit, the valve 16 is turned off on the delivery pipe 8 and, simultaneously, the compressor 1 is switched on to draw the fluid from the coil 11 toward the reusable circuit part.
- compressor 1 is operated independently of the temperature conditions of the refrigerating fluid, that, in the conventional cooling units, determinate the switch on or the shut off of the compressor during the usual operating cycles.
- Such an arrangement may be obtained by parallel connecting suitable commutating devices, for instance a simple switch, with the contacts of the commutating device associated with the thermostat.
- the coil 11 emptying cycle is carried out by means of suitable driving means comprising a control device 18 and at least a transducer 19 to provide information on the refrigerating fluid pressure conditions to the control device 18.
- suitable driving means comprising a control device 18 and at least a transducer 19 to provide information on the refrigerating fluid pressure conditions to the control device 18.
- the coil 11 emptying cycle starts at the time in which the control device 18 receives a signal from the exterior, sent by an operator, for instance trough the electrical connection 21.
- the control device 18 reacts by actuating the closure of the stop valve 16 through the electrical connection 22, as well as the switch on of the compressor 1 through the electrical connection 23.
- the operation of the compressor 1 draws the refrigerating fluid from the coil 11 while the stop valve 16 plugs the delivery pipe upstream of the valve or expansion capillary 7.
- variable electric signal means either a continuous variable signal or a discontinuous variable signal, as for instance a two-level signal generated by respective conditions of open or closed circuit at the ends of the transducer.
- the transducer 19 When the refrigerating fluid pressure downstream of the coil goes below a predetermined threshold the transducer 19, through the electrical connection 24, indicates to the control device 18 the attainment of the optimum conditions to stop the coil 11 emptying cycle.
- control device 18 actuates then the switch off of the compressor 1 through the electrical connection 23 while the valve 17, suitably calibrated, avoids the fluid return into the coil 11.
- the refrigerating circuit is different from said second circuit and the above two circuits are heat exchange coupled by a heat exchanger.
- the cooling unit according to the invention comprises a conventional closed refrigerating circuit 30 in which a freon containing heat exchange fluid flows, and a second circuit wherein a liquid heat exchange fluid flows having a low freezing point and a high boiling point, for instance a glycol.
- the above two circuits are heat exchange, preferably counter-current, coupled by means of distinct hydraulic pipes in a heat exchanger 31.
- the second circuit of the cooling unit comprises a pump 32 for the second heat exchange fluid circulation, a tank 33 for the recovery of said second fluid and a refrigerating plate 34 in which a coil 35 is embedded.
- the refrigerating plate 34 is detachable from the remaining part of the circuit in a point where a pair of joints 36 are present.
- Such joints are for instance neoprene made couplings placed respectively upstream of the inlet pipe 37 and downstream of the outlet pipe 38 of the heat exchange fluid in the coil 35.
- the pump 32 acting as a heat exchange fluid circulating mean in the second circuit is preferably of positive-displacement kind. Said device allows to pump both the heat exchange fluid within the circuit and the necessary air to discharge the heat exchange fluid from the coil 35 and recovery same into the tank 33.
- a three way valve is provided, placed between the tank 33 and the pump 32, upstream of the latter with respect to the fluid flowing direction. Two ways of the valve are connected with the circuit, the third way is connected with the exterior to allow to pump air within the circuit and consequently draw the fluid from the coil 35.
- the ways in communication with the remaining part of the circuit are open while the third way, in communication with the exterior, is closed.
- the air inlet into the circuit allows then to recovery most of the heat exchange fluid that otherwise will be lost together with the refrigerating plate which is left in the coffin at the time the coffin is finally closed.
- the coil 35 emptying operations are carried out in an automatic way by means of a control device 40 of electromechanical or electronic kind, furthermore the valve 39 is of electromechanical type, for instance an electrically driven solenoid valve.
- the operator sends a signal to the control device 40 through the electrical connection 41.
- the control device 40 actuates then the switching of the valve 39 through the electrical connection line 42 in order to close the way toward the tank 33 and put in connection the exterior with the portion of the circuit downstream of said valve.
- control device 40 actuates, through the electrical connection line 43, the pump 32.
- the above operations give rise to the inlet of air into the circuit downstream of the valve 39 and the subsequent transfer of the heat exchange fluid through the circuit to the recovery tank 33.
- a suitable sensor for instance a thermal overloading sensor, allows the pump disconnection after a predetermined value of the coil emptying is reached.
- the plate 34 may therefore be detached from the reusable part of the cooling unit without any valuable loss of the heat exchange fluid.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Animal Behavior & Ethology (AREA)
- Physics & Mathematics (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Fertilizers (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Compressor (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
- The present invention concerns a cooling unit for coffins comprising a refrigerating circuit and a refrigerating plate which is in a situation of heat exchange with the interior of the coffin.
- More particularly the invention concerns a cooling unit of the above-mentioned kind wherein the cooling unit consists of a detachable coil which a heat exchange refrigerating fluid flows therein.
- Similar cooling units are known in the art, for instance the one described in the European Patent N° EP 230.595 of the same applicant.
- The above embodiment includes a freon circulating cooling unit consisting of two parts, the first comprises all the elements of the refrigerating circuit, preferably contained in a transportable container, the second, namely the plate constituting the evaporator, consists of a preloaded coil connectable with, or detachable from the remaining part of the unit by means of rapid connections set up on the delivery and exit pipes to seal the corresponding parts of the refrigerating circuit after the relative detachment. All elements of the refrigerating circuit, with the exclusion of the plate, can be subsequently reused to be connected to another plate associated with another coffin.
- On the contrary, the plate is a disposable element and it is left in the coffin after the final closure thereof, involving therefore the loss of the freon contained therein. It has to be considered that the amount of freon contained into the evaporator, in the normal operating conditions, is remarkably higher than the preloaded amount at room temperature.
- Other losses, even though less substantial, take place at the time of disconnecting the evaporator from the remaining part of unit in correspondence of the rapid attachments, said losses being due to a difference between the pressure of freon contained in the coil and the external atmospheric pressure.
- One of the drawback of the above cooling unit is due to the fact that, by using many times the reusable part of the refrigerating circuit, a gradual decrease of the amount of the fluid in the circuit takes place. Such decrease implies frequent and expensive circuit refilling operations as well as the availability of a tank of such a size as to contain a sufficient amount of fluid to assure a suitable operating duration to the reusable unit.
- An additional drawback is due to the harmless freon leaking in the atmosphere, since, as it is well known, freon is a polluting fluid.
- WO-A-8912792 relates to a method and apparatus to fully withdraw refrigerant from entire cooling unit, more specifically from an air conditioner installed on a car. It does not solve the problem to evacuate a part of the circuit only.
- FR-A-2539620 refers to a unit including a refrigerating system comprising two different circuits. It also provides a cooling apparatus in which a portion of the refrigerating circuit - the envelop - may be disconnected from the remaining part of the circuit to make the transportation easier. However the reference does not disclose nor teach any refrigerating fluid withdrawal from the portion of the circuit to be disconnected.
- It is an object of the present invention to provide an improved cooling unit allowing the use of a detachable refrigerating plate, while avoiding any polluting fluid leaking.
- Another object of the present invention is to provide a cooling unit which allows to recover the excess fluid contained in the refrigerating plate before its detachment from the remaining part of the cooling unit.
- A further object of the present invention is to provide a cooling unit allowing to limit the fluid losses during detachment of the plate from the remaining part of the cooling unit.
- The above objects are attained by the present invention which refers to a cooling units as claimed in
claims 1 and 10. - Therefore, according to the invention, it is possible to carry out a fluid recovery operation from the refrigerating plate before the disconnection of said plate from the remaining part of the refrigerating circuit.
- This and other advantages will appear more clearly from the following description which is provided with reference to the annexed drawings to illustrate the invention without any limiting purpose.
- In the drawings:
- Fig. 1 is a schematic view of a first embodiment of the cooling unit according to the invention; and
- Fig 2 is a schematic view of a second embodiment according to the invention.
- In the first embodiment according to invention said second circuit coincides with the cooling circuit and the heat exchange fluid is a freon containing refrigerating fluid.
- The cooling circuit shown in Fig. 1 comprises therefore a
compressor 1 delivering the fluid in the gaseous state to a condenser 3 though a pipe 2. In the condenser 3, conventionally cooled by a fan 4, the fluid liquefies by condensation and is recovered in a tank 5. From said tank 5 the fluid passes through a pipe 6 up to the inlet of a valve or an expansion capillary 7 whose outlet is then connected, through a delivery pipe 8, with the inlet pipe 9 of the evaporator 10. - In the preferred embodiment of the invention the reusable part of the cooling unit is contained in a transportable container 20 (shown in dotted line in Fig.1), while the
refrigerating plate 25 comprises the evaporator 10 consisting of a refrigerating fluid preloadedflat coil 11, of the kind employed in the household refrigerators, known as roll-bond. - The
outlet pipe 12 of thecoil 11 is then connected with thereturn pipe 13 carrying back the fluid tocompressor 1. - The connection between pipes 8 and 9, as well as the connection between
pipes rapid connections 14 connectable and detachable with respect to the correspondingrapid connections 15. - According to an advantageous embodiment of the invention a stop-
valve 16 is provided on the refrigerating fluid delivery pipe upstream of the valve or the expansion capillary 7. This arrangement allows to discontinue the refrigerating fluid flow toward the evaporator 10 in a portion of the circuit in which said fluid is in liquid state. - Upstream of the evaporator 10 and on the
pipe 13 an automatic single-actingvalve 17, acting as a nonreturn valve, is preferably provided, said valve allows the refrigeratingplate 25 isolation from the remaining part of the circuit before its detachment. - In order to discharge the refrigerating fluid from the
refrigerating plate 25, before disconnecting said plate from the remaining part of the circuit, thevalve 16 is turned off on the delivery pipe 8 and, simultaneously, thecompressor 1 is switched on to draw the fluid from thecoil 11 toward the reusable circuit part. - Once a sufficient emptying degree of the
coil 11 is reached, thecompressor 1 is shut off while the automatic, single-actingvalve 17 prevents any return of the fluid to coil 11. - It is preferable that
compressor 1 is operated independently of the temperature conditions of the refrigerating fluid, that, in the conventional cooling units, determinate the switch on or the shut off of the compressor during the usual operating cycles. - Such an arrangement may be obtained by parallel connecting suitable commutating devices, for instance a simple switch, with the contacts of the commutating device associated with the thermostat.
- In such a way it is possible to carry out the
coil 11 emptying in a fast and efficient manner independently of the usual operating cycle of thecompressor 1. - In the preferred embodiment of the invention the
coil 11 emptying cycle is carried out by means of suitable driving means comprising acontrol device 18 and at least atransducer 19 to provide information on the refrigerating fluid pressure conditions to thecontrol device 18. To allow an entire automatization of thecoil 11 emptying cycle it is advantageously used acontrol device 18 of the electromechanical or electronic kind, as well as an electrically actuatedstop valve 16, as for instance a solenoid valve. - The
coil 11 emptying cycle starts at the time in which thecontrol device 18 receives a signal from the exterior, sent by an operator, for instance trough theelectrical connection 21. Thecontrol device 18 reacts by actuating the closure of thestop valve 16 through theelectrical connection 22, as well as the switch on of thecompressor 1 through the electrical connection 23. The operation of thecompressor 1 draws the refrigerating fluid from thecoil 11 while thestop valve 16 plugs the delivery pipe upstream of the valve or expansion capillary 7. - During the
coil 11 emptying, thetransducer 19 provides thecontrol device 18 with a variable electric signal as a function of the fluid pressure conditions downstream of thecoil 11. The expression "variable electric signal" means either a continuous variable signal or a discontinuous variable signal, as for instance a two-level signal generated by respective conditions of open or closed circuit at the ends of the transducer. - When the refrigerating fluid pressure downstream of the coil goes below a predetermined threshold the
transducer 19, through theelectrical connection 24, indicates to thecontrol device 18 the attainment of the optimum conditions to stop thecoil 11 emptying cycle. - The
control device 18 actuates then the switch off of thecompressor 1 through the electrical connection 23 while thevalve 17, suitably calibrated, avoids the fluid return into thecoil 11. - In such a way it is possible to remarkably limit the amount of fluid remaining in refrigerating
plate 25, reducing consequently the amount of the refrigerating fluid that, otherwise, will be lost by leaving the coil in the interior of the coffin. By limiting the amount of fluid, and therefore its pressure inside thecoil 11, the dispersion of the refrigerating fluid in the atmosphere is drastically reduced, if not eliminated. - In the second embodiment of the invention the refrigerating circuit is different from said second circuit and the above two circuits are heat exchange coupled by a heat exchanger.
- The cooling unit according to the invention, as shown in Fig.2, comprises a conventional closed refrigerating
circuit 30 in which a freon containing heat exchange fluid flows, and a second circuit wherein a liquid heat exchange fluid flows having a low freezing point and a high boiling point, for instance a glycol. The above two circuits are heat exchange, preferably counter-current, coupled by means of distinct hydraulic pipes in aheat exchanger 31. - By employing two distinct circuits, and particularly a sealed refrigerating circuit, the refrigerating fluid dispersion in the environment is eliminated.
- More particularly, the second circuit of the cooling unit comprises a
pump 32 for the second heat exchange fluid circulation, atank 33 for the recovery of said second fluid and a refrigeratingplate 34 in which acoil 35 is embedded. - The
refrigerating plate 34 is detachable from the remaining part of the circuit in a point where a pair ofjoints 36 are present. Such joints are for instance neoprene made couplings placed respectively upstream of theinlet pipe 37 and downstream of theoutlet pipe 38 of the heat exchange fluid in thecoil 35. - The
pump 32 acting as a heat exchange fluid circulating mean in the second circuit is preferably of positive-displacement kind. Said device allows to pump both the heat exchange fluid within the circuit and the necessary air to discharge the heat exchange fluid from thecoil 35 and recovery same into thetank 33. - As a matter of fact, to carry out the emptying of the coil 35 a three way valve is provided, placed between the
tank 33 and thepump 32, upstream of the latter with respect to the fluid flowing direction. Two ways of the valve are connected with the circuit, the third way is connected with the exterior to allow to pump air within the circuit and consequently draw the fluid from thecoil 35. During the cooling unit normal operations the ways in communication with the remaining part of the circuit are open while the third way, in communication with the exterior, is closed. - The air inlet into the circuit allows then to recovery most of the heat exchange fluid that otherwise will be lost together with the refrigerating plate which is left in the coffin at the time the coffin is finally closed.
- According to an advantageous feature of the invention, the
coil 35 emptying operations are carried out in an automatic way by means of acontrol device 40 of electromechanical or electronic kind, furthermore thevalve 39 is of electromechanical type, for instance an electrically driven solenoid valve. - In fact, before detaching the refrigerating
plate 34, the operator sends a signal to thecontrol device 40 through theelectrical connection 41. Thecontrol device 40 actuates then the switching of thevalve 39 through theelectrical connection line 42 in order to close the way toward thetank 33 and put in connection the exterior with the portion of the circuit downstream of said valve. - In the same time of the switching of the
valve 39, thecontrol device 40 actuates, through theelectrical connection line 43, thepump 32. The above operations give rise to the inlet of air into the circuit downstream of thevalve 39 and the subsequent transfer of the heat exchange fluid through the circuit to therecovery tank 33. - A suitable sensor, for instance a thermal overloading sensor, allows the pump disconnection after a predetermined value of the coil emptying is reached. The
plate 34 may therefore be detached from the reusable part of the cooling unit without any valuable loss of the heat exchange fluid.
Claims (15)
- Cooling unit for coffins of the kind comprising two different refrigerating circuits coupled by a heat exchanger (31), wherein a first heat exchange fluid circulates in the first refrigerating circuit, and a second refrigerating fluid circulates in the second refrigerating circuit connected with at least a refrigerating plate (34) in a situation of heat exchange with the interior of the coffin and at least a pump (32) to carry out the flowing of such second beat exchange fluid in the second circuit, said refrigerating plate (34) consisting of a coil (35), set up detachable, by means of rapid connections (36) placed respectively upstream of the inlet pipe (37) and downstream of the outlet pipe (38) of the heat exchange fluid in said coil (35) to allow said coil (35) detachment from, or connection with the remaining part of said second circuit, characterized in that it comprises valve means (39) to stop the flowing of said second fluid in the delivery pipe (37) of said coil (35) and to allow the draining of said fluid from said coil (35), actuating or control means to actuate the operations of pump (32) and of said valve means (39), said actuating or control means actuating the operations of said pump (32) to evacuate the coil (35) after said valve means (39) have stopped the flowing of said second fluid in the delivery pipe of said coil (35) and being able to stop the operations of said pump (32) when the amount of said second fluid in said coil is lower than a predetermined value.
- Cooling unit according to claim 1, characterized in that said first and second heat exchange fluids are different each other.
- Cooling unit according to claim 2, characterized in that the thermal coupling between said circuits is effected in countercurrent.
- Cooling unit according to claim 2, characterized in that said first heat exchange fluid, circulating in said first refrigerating circuit, is a freon containing refrigerating fluid and that said second heat exchange fluid, circulating in said second circuit, is a liquid heat exchange fluid having a low freezing point and a high boiling point.
- Cooling unit according to claim 2, characterized in that said first circuit is a closed refrigerating circuit and that said second circuit comprises a tank (33) for the recovery of said second heat exchange fluid.
- Cooling unit according to claim 2, characterized in that said pump (32) is a positive- displacement pump.
- Cooling unit according to claim 2, characterized in that said valve means to stop said heat exchange fluid circulation comprise at least a three-way valve (39) placed upstream of said pump (32), two ways being connected with the circuit, the third way being connected with the exterior to allow air to be pumped into the circuit and the consequent emptying of said second fluid from the coil (35).
- Cooling unit according to claim 2, characterized in that said actuating or control means comprise a control device (40) capable to switch said three-way valve (39) placed on the delivery pipe toward said coil (35) and to actuate the switching-on of said pump (32), as well as a sensor suitable to actuate the switch off of said pump after a predetermined value of the coil emptying is reached.
- Cooling unit according to claim 8, characterized in that said control device (40) is of electromechanical or electric type and that said three-way valve (39) is a electrically actuated solenoid valve.
- Cooling unit for coffin of the kind comprising a refrigerating circuit in which a refrigerating fluid circulates therein, at least a refrigerating plate (25) in a situation of heat exchange with the interior of the coffin consisting of a coil (11), set up detachable, by means of rapid connections (14, 15) from the remaining part of the circuit, said refrigerating circuit including a compressor (1) for the circulation of said heat exchange fluid, a condenser (3), one or more expansion valve or similar devices (7), an evaporator (10) embedded into said refrigerating plate (25) consisting of said preloaded coil (11), characterized in that it comprises valve means (16) to stop the flowing of said fluid in the delivery pipe of said coil (11) and to allow the draining of said fluid from said coil (11), actuating or control means with a control device (18) to actuate the operations of said compressor (1) and of said valve means (16), said actuating means actuating the operation or switching-on of said compressor (1) to evacuate the coil (11) after said valve means (16) have stopped the flowing of said fluid in the delivery pipe (8) of said coil (11) and being able to stop the operations of said compressor (1) when the amount of said fluid in said coil (11) is lower than a predetermined value.
- Cooling unit according to claim 10, characterized in that said heat exchange fluid is a freon containing refrigerating fluid.
- Cooling unit according to claim 10, characterized in that it comprises at least a transducer (19) to provide said control device (18) with information on the refrigerating fluid pressure conditions to actuate the switching off of the compressor (1).
- Cooling unit according to claim 12, characterized in that said control device (18) is of electromechanical or electronic kind and that said valve (16) is an electrically actuated solenoid stop-valve.
- Cooling unit according to claim 12, characterized in that the information of said transducer (19) is given in form of an electrical variable signal as a function of the heat exchange pressure conditions in said circuit downstream of the coil (11).
- Cooling unit according to claim 12, characterized in that said transducer (19) is placed downstream of said rapid connections (14-15) on the return pipe (13) from said coil (11).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI931333 | 1993-06-22 | ||
IT93MI001333A IT1264864B1 (en) | 1993-06-22 | 1993-06-22 | COOLING UNIT FOR MORTUARY COFFINS WITH DETACHABLE COOLING PLATE AND FLUID RECOVERY |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0631097A1 EP0631097A1 (en) | 1994-12-28 |
EP0631097B1 true EP0631097B1 (en) | 2000-04-26 |
Family
ID=11366443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94108336A Expired - Lifetime EP0631097B1 (en) | 1993-06-22 | 1994-05-30 | Cooling unit for coffins with detachable refrigerating plate and liquid recovery |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0631097B1 (en) |
AT (1) | ATE192231T1 (en) |
DE (1) | DE69424090T2 (en) |
ES (1) | ES2148256T3 (en) |
IT (1) | IT1264864B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10055788C1 (en) * | 2000-11-10 | 2002-12-19 | Johann Unterpaintner | Coffin provided with internal cooling via re-usable insert fitted between base part and coffin lid |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1317970B1 (en) * | 2000-06-16 | 2003-07-21 | Nuova Zorsol Srl | COOLING GROUP FOR DEAD BONNETS WITH SEPARABLE COOLING ELEMENT. |
DE202011110390U1 (en) * | 2011-02-14 | 2013-11-12 | Kmw Kühlmöbelwerk Limburg Gmbh | Refrigerated cabinets for a central refrigeration system |
IT201700062432A1 (en) | 2017-06-07 | 2018-12-07 | Zorsol S R L | Portable refrigeration unit with refrigerant fluid recovery |
JP7487437B2 (en) * | 2019-06-05 | 2024-05-21 | 有限会社Takashima | Corpse cooling device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2549922A1 (en) * | 1975-11-06 | 1977-05-18 | Nethery Howard J | Cryoanaesthesia of gangrenous extremities - using freezing pad connected to cooling component with compressor |
FR2539620A1 (en) * | 1983-01-26 | 1984-07-27 | Hamel Marc | Refrigerating covering |
IT209042Z2 (en) * | 1985-12-20 | 1988-09-02 | Zorsol Di Alberto Cipelletti & | COOLING GROUP FOR DEAD BONNETS. |
WO1989012792A1 (en) * | 1988-06-24 | 1989-12-28 | Murray Corporation | Method and apparatus for full evacuation of air conditioner or refrigeration system |
DE3914252A1 (en) * | 1989-04-29 | 1990-10-31 | Behr Gmbh & Co | Cleaning of refrigerant circuit for motor vehicle air-conditioner - by removing and passing refrigerant through filter and evaporator and then collecting tank equipped with oil separator |
-
1993
- 1993-06-22 IT IT93MI001333A patent/IT1264864B1/en active IP Right Grant
-
1994
- 1994-05-30 EP EP94108336A patent/EP0631097B1/en not_active Expired - Lifetime
- 1994-05-30 DE DE69424090T patent/DE69424090T2/en not_active Expired - Fee Related
- 1994-05-30 ES ES94108336T patent/ES2148256T3/en not_active Expired - Lifetime
- 1994-05-30 AT AT94108336T patent/ATE192231T1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10055788C1 (en) * | 2000-11-10 | 2002-12-19 | Johann Unterpaintner | Coffin provided with internal cooling via re-usable insert fitted between base part and coffin lid |
Also Published As
Publication number | Publication date |
---|---|
ES2148256T3 (en) | 2000-10-16 |
ITMI931333A0 (en) | 1993-06-22 |
DE69424090D1 (en) | 2000-05-31 |
ITMI931333A1 (en) | 1994-12-22 |
EP0631097A1 (en) | 1994-12-28 |
ATE192231T1 (en) | 2000-05-15 |
IT1264864B1 (en) | 1996-10-17 |
DE69424090T2 (en) | 2000-09-14 |
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