WO2003095844A1 - Dampfpumpe - Google Patents
Dampfpumpe Download PDFInfo
- Publication number
- WO2003095844A1 WO2003095844A1 PCT/AT2003/000132 AT0300132W WO03095844A1 WO 2003095844 A1 WO2003095844 A1 WO 2003095844A1 AT 0300132 W AT0300132 W AT 0300132W WO 03095844 A1 WO03095844 A1 WO 03095844A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- line
- liquid
- evaporator
- vessel
- interrupter
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/20—Other positive-displacement pumps
- F04B19/24—Pumping by heat expansion of pumped fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
- F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
-
- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/007—Machines, plants or systems, using particular sources of energy using solar energy in sorption type systems
Definitions
- the invention relates to a steam pump with an evaporator and / or an external steam source and a riser.
- a gas dissolved in the liquid can also be expelled from the liquid by heating.
- the object of the invention is therefore to provide a steam pump which avoids these known disadvantages, the pump power of which is approximately proportional to the heat output supplied and which can move a liquid or solution using low-temperature heat.
- Another object of the invention is to provide a steam pump without movable wear parts.
- an interrupter vessel which is connected to the evaporator by means of at least one connecting line, a first mouth of the riser line - seen in the position of use - being connected to the interrupter vessel above the at least one connecting line or being arranged in the interrupter vessel, and that an essentially U-shaped release line is provided, wherein - seen in the position of use - a first end of the release line is connected to or arranged in the evaporator above the at least one connecting line, a second end above the first mouth of the riser line is connected to the interrupter vessel or is arranged in this, and the deflection region of the trigger line is arranged below the first end and below the second end.
- the second end of the trigger line - seen in the position of use - is arranged above the first end of the trigger line.
- a vapor bubble can be formed in the interrupter vessel in the region of the second end of the release line, as a result of which the pressure at the second end of the release line is reduced.
- the second mouth of the riser opposite the first mouth is connected to a condenser.
- the liquid and its vapor can be cooled by the condenser and subsequently fed back to the evaporator, which enables a cycle of the liquid.
- the required vapor and the required liquid can be used by the condenser.
- the evaporator and / or the interrupter vessel is connected to a storage container by means of a feed line, the feed line having a shut-off means, in particular a check valve or the like.
- a shut-off means in particular a check valve or the like.
- the condenser and the storage container are connected to one another, in particular that they are formed in one piece, and that the vapor pump is sealed with respect to the liquid and its vapor.
- the liquid can be circulated in a simple manner in the vapor pump according to the invention.
- a connecting piece is connected at one end to the deflection area of the release line and at the other end to the connecting line and / or the interrupter vessel.
- connection piece can lower the temperature of the liquid flowing into the release line, which in particular reduces the risk of foam formation or the like in the release line, since the release line is filled via the interrupter vessel and / or the connection line and not via the evaporator, wherein the interrupter vessel and the connecting line have a lower temperature than the evaporator.
- the interrupter vessel in particular concentrically, is arranged in the evaporator. This enables a particularly simple and compact design of the steam pump according to the invention to be achieved.
- the liquid bypass line is movably connected to the intermediate storage, whereby the height of the liquid column in the intermediate storage can be changed. The height of the liquid column is proportional to the amount of liquid dispensed into the condenser per unit of time.
- Another possible embodiment of the invention can consist in that the riser pipe, the intermediate store, the liquid bypass pipe and the steam bypass pipe are flexible. This configuration also makes it possible to adjust the height of the liquid column in the intermediate store.
- connection of the U-shaped trigger line to the evaporator takes place via a compensating line which, seen in the position of use, leads from the upper end of the evaporator to the connecting line and is hydraulically connected in parallel to the evaporator, the trigger line having its first end is connected to the compensating line in the upper region and this connection point lies below the second end of the trigger line, which is connected to the interrupter vessel.
- the invention further relates to a method for pumping a liquid by means of steam, in particular by means of a steam pump mentioned above.
- the object of the invention is to provide a method for pumping of the type mentioned above, in which the pump power is approximately proportional to the heat output supplied and in which a liquid or solution can be moved using low-temperature heat.
- Another object of the invention is to provide a method for pumping in which no moving wear parts are required and which works without additional control devices.
- this is achieved in that a liquid is evaporated in an evaporator during a pump cycle, as a result of which the steam presses the liquid into a riser via an interrupter vessel and, in an essentially U-shaped release line, the pressure difference between the first one connected to the evaporator End and whose second end connected to the interrupter vessel is compensated for by forming a liquid column, the liquid column in the release line is blown out at a predeterminable limit pressure difference, as a result of which a pressure equalization takes place between the first end and the second end of the release line and the liquid level in the interrupter vessel to falls below the first mouth of the riser and the steam subsequently blows out the liquid in the riser and then pressure equalization of the steam with the second mouth opposite the first mouth de r riser and then flows through a supply line with a shut-off means, in particular a check valve or the like. From a storage container or the like. Liquid into the evaporator and the interrupter vessel. This has the advantage that
- Another advantage of the pumping method according to the invention is that the evaporation largely kills germs and bacteria, so that in particular Use of organically contaminated water as a liquid whose quality can be improved.
- the evaporator does not have to be heated itself. It may also be useful to generate the steam in another part of the system.
- Embodiments are shown, described in more detail. It shows:
- Fig. 1 is a schematic representation of an embodiment of an inventive
- FIG. 13 shows a schematic illustration of a further embodiment of the steam pump according to the invention in side view
- Fig. 1 is a schematic side view of an embodiment of an inventive
- the Damp ⁇ umpe has an evaporator 1, a riser 4 and an interrupter 2, which by means of a connecting line 3 with the
- Evaporator 1 is connected. In other embodiments of the invention
- Damp ⁇ umpe several connecting lines 3 can also be provided.
- Mouth 41 of the riser 4 is - seen in the use position - above the
- connection line 3 arranged in the interrupter vessel 2.
- the first mouth 41 of the riser 4 can also be connected to the interrupter vessel 2.
- an essentially U-shaped trigger line 5 is provided, wherein - seen in the position of use - a first end 51 of the trigger line 5 is connected to the evaporator 1 above the connecting line 3, a second end 52 above the first mouth 41 of the riser 4 to the Interruptor vessel 2 is connected, and the deflection region 53 of the trigger line 5 is arranged below the first end 51 and below the second end 52.
- the first end 51 of the trigger line 5 is arranged in the evaporator 1 and / or the second end 52 of the trigger line 5 is arranged in the interrupter vessel 2.
- the second mouth 42 of the riser 4 opposite the first mouth 41 is connected to a condenser 6 according to the embodiment in FIG. 1.
- the second mouth 42 of the riser 4 can also be connected to a collecting container or the like.
- the pressure in the condenser 6 should be approximately constant, which is why, if necessary, a pressure compensation vessel can be arranged in this area.
- the condenser can absorb both the liquid 9 and the vapor 10 and utilize their heat.
- a cyclic pumping process is achieved when the evaporator 1 and / or the interrupter vessel 2 is connected to a storage container 7 by means of a feed line 71, the feed line having a shut-off means 72, in particular a check valve or the like.
- the shut-off means 72 ensures that the liquid 9 is not pumped back into the reservoir 7 via the supply line 71 after a pressure increase in the evaporator 1.
- the vapor pump according to the invention is sealed with respect to the liquid 9 and its vapor 10.
- a simple construction results if the condenser 6 and the storage container 7 are formed in one piece.
- the condenser 6 can be designed as a heat exchanger, absorption chiller, water heater or the like, at least the steam 10 being condensed.
- the embodiment of the steam pump according to the invention shown in FIG. 2 corresponds to the embodiment according to FIG. 1, the first mouth 41 being connected to the interrupter vessel 2 and not being arranged in it.
- a connecting piece 54 is connected at one end to the deflection region 53 and at the other end to the connecting line 3. It can also be provided that the connecting piece is connected to the interrupter vessel 2.
- the trigger line 5 can be filled via the connecting line 3 and / or the interrupter vessel 2 and not via the evaporator. Since the interrupter vessel 2 and / or the connecting line 3 usually have a lower temperature than the evaporator, the risk of foaming of the liquid 9 in the release line 5 is reduced.
- the interrupter vessel 2 can be arranged in the evaporator 1, a concentric arrangement in particular appearing to be advantageous.
- the connecting line 3 consists essentially of openings in the wall between the evaporator 1 and the interrupter vessel 2.
- the first end 51 of the trigger line 5 is arranged in the evaporator and the second end 52 of the trigger line 5 in the interrupter vessel 2. This embodiment has a particularly small construction volume.
- a buffer 8 with a throttle device 81 is arranged between the second mouth 42 of the riser 4 and the condenser 6, the buffer 8 by means of a liquid bypass line 82 with the reservoir 7 and / or with the supply line 71 is connected and a steam bypass line 83 to the condenser 6 is provided.
- a throttle device 81 forms a liquid column in the intermediate store 8, as a result of which a constant pumping capacity can be achieved. If the amount of liquid conveyed becomes too large, part of the liquid is fed via the liquid bypass line 82 to the supply line 71 and / or the storage container 7. Pressure can be equalized in the riser 4 via the steam bypass line 83.
- the height of the liquid column which can form in the intermediate store 8, depends on the position of the connection of the liquid bypass line 82. This can be changed in a simple manner if the liquid bypass line 82 is movably connected to the intermediate store 8.
- the height of the liquid column in the intermediate store 8 can also be changed if the riser 4, the intermediate store 8, the liquid bypass line 82 and the steam bypass line 83 are flexible. Flexible training can be achieved, for example, with hose lines.
- the feed line 71 - seen in the position of use - opens into the upper region of the evaporator 1.
- ammonia 10 which is the steam in this embodiment, is outgassed, the outgassed solution 9 sinking downward and being pressed out of the evaporator 1 via the interrupter vessel 2 into the riser 4.
- the mixing of fresh and outgassed solution 9 is stopped, whereby the efficiency of the steam pump according to the invention is increased.
- the efficiency can be further increased when using an ammonia-water solution 9 if the evaporator 1 is heated not from the bottom but from below, so that the lower area is hotter than the upper area. This ensures that the fresh solution 9, which flows out of the feed line 71, does not immediately reach boiling temperature, thereby reducing the risk of foam formation in the release line 5.
- a further riser 45 can be provided, the further riser 45 reaching into the lower region of the interrupter vessel 2 or being connected to it in the lower region. Furthermore, it has proven to be advantageous if the further riser 45 has a check valve 47 or the like in its lower region 46. This has the advantage that, with a large liquid throughput, the main part of the liquid is moved via the further riser 45. If the limit pressure in the evaporator 1 is reached, in this embodiment only the liquid in the trigger line 5 and subsequently in the riser 4 is blown out, while the liquid column remains in the further riser 45 and cannot drop due to the check valve 47.
- the efficiency of the vapor pump according to the invention can be increased with a high liquid throughput. If the riser 4 has a large cross-section, there is a risk that a Part of the liquid flows back into the interrupter vessel 2. Due to the further riser 45, the cross section of the riser 4 can be kept small.
- a compensating line 80 is provided, which leads from the upper region of the evaporator 1 to the connecting line 3.
- the U-shaped trigger line 5 is connected to its first end 51 in the upper region of the compensating line 80. This first end 51 of the trigger line 5 is lower than its second end 52 on the interrupter vessel 2.
- the compensating line 80 is connected by its first end 81 in the uppermost region of the evaporator 1 and by its lower, second end 82 to the connecting line 3.
- the first end 81 of the equalization line 80 is higher than the first end 51 of the trigger line 5.
- This equalization line 80 largely negates the influence of any foaming of the solution, since the foam in the upper part of the evaporator has a corresponding space , In this case, the liquid does not enter the trigger tube 5 from the boiling evaporator 1, but rather from the lower part of the interrupter vessel 2 via the connecting line 3 and the lower second end 82 of the compensating line 80 and from there via the first end 51 of the trigger line 5 into this one.
- the volume in the evaporator is available for any foam that is formed, which volume results between the height level of the mouth 51 and the height level of the mouth 81. With a corresponding size of this volume, penetration of foam into the trigger tube 5 can be reliably avoided and thus also an early initiation of the triggering process. This avoids a reduction in the amount of liquid per pump cycle.
- FIG. 15 corresponds essentially to that according to FIG. 1, but a steam feed line 90 opens into the container 1 ', since the steam is not generated in an evaporator 1 integrated in the pump, but is obtained from an external source , for example a solar collector of a solar water heating system.
- a connection line 91 is connected to the output of the pump system, via which a pressure equalization to the rest of the system takes place, whereby the in the embodiment according to the fig. 1 required capacitor 2 can be omitted.
- 15 in FIG. 15 denotes a user of the liquid flow.
- an absorption Chiller can be an absorber or the generator and in the case of a solar energy
- an external supply of the pump system with steam can also be provided in the embodiments according to FIGS. 2, 4, 5 and 13.
- FIG. 7 to 12 show six stages of a pump cycle. The one shown in Fig. 7
- a vapor or gas bubble can form in the interrupter vessel 2 and / or in the evaporator 1.
- Trigger line 5 blown out, as shown in Fig. 10.
- the riser 4 comes to lie above the liquid level in the interrupter vessel 2, as shown in FIG. 11.
- the pressure in the interrupter vessel 2 is greater than the pressure required to
- shut-off means 72 If the shut-off means 72 is opened, liquid 9 flows from the storage container 7 into the evaporator 1 and the interrupter vessel 2. The liquid 9 enters the release line 5, whereby the filling process is subsequently interrupted, the state according to FIG. 7 changing and a new pump cycle begins. It has proven to be advantageous if the shut-off means 72 is designed as a check valve or the like, since it closes automatically when the pressure in the evaporator rises and opens automatically after the pressure equalization of the steam 10 with the second mouth 42 of the riser 4 has taken place ,
- This method has the advantage that the pump output is approximately proportional to the heat output supplied, with no additional devices for regulation and / or overheating protection having to be provided. Furthermore, no moving parts are required, so that the steam pump according to the invention has a long service life with low maintenance costs.
- the steam pump according to the invention appears to be particularly suitable for use in absorption chillers, with pumping heights and delivery rates of almost any size being possible compared to conventional bubble pumps.
- large cooling machines can be built without an electric pump with a hermetically sealed outer skin, which makes them particularly durable and maintenance-free.
- the large pumping height also allows the tubes of the active components of such machines, such as generators, bypass, evaporators and absorbers, to be arranged vertically, as a result of which the liquid in these components is distributed over the entire inner tube surface and thus the active surface of these components compared to horizontal tubes which the liquid forms a thin trickle on the bottom, is magnified many times over.
- the active area can be further increased by increasing the roughness and, if necessary, by internals.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003229343A AU2003229343A1 (en) | 2002-05-07 | 2003-05-07 | Steam pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT7112002 | 2002-05-07 | ||
ATA711/2002 | 2002-05-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003095844A1 true WO2003095844A1 (de) | 2003-11-20 |
Family
ID=29408724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2003/000132 WO2003095844A1 (de) | 2002-05-07 | 2003-05-07 | Dampfpumpe |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2003229343A1 (de) |
WO (1) | WO2003095844A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012126023A2 (de) | 2011-03-23 | 2012-09-27 | Solar Frost Labs Pty Ltd | Solarkühlung mit einer ammoniak-wasser-absorptionskältemaschine |
CN105849476A (zh) * | 2013-10-21 | 2016-08-10 | 索拉尔弗罗斯特实验室有限公司 | 呈板设计的调节吸收式制冷机 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE575300C (de) * | 1930-10-18 | 1934-03-16 | Wilhelm Scheck | Selbsttaetiger Fluessigkeitsheber |
US2068549A (en) * | 1933-05-23 | 1937-01-19 | Servel Inc | Heat transfer system |
US3053198A (en) * | 1958-02-21 | 1962-09-11 | Midland Ross Corp | Thermopump system |
US6042342A (en) * | 1996-10-02 | 2000-03-28 | T.D.I. --Thermo Dynamics Israel Ltd. | Fluid displacement system |
-
2003
- 2003-05-07 WO PCT/AT2003/000132 patent/WO2003095844A1/de not_active Application Discontinuation
- 2003-05-07 AU AU2003229343A patent/AU2003229343A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE575300C (de) * | 1930-10-18 | 1934-03-16 | Wilhelm Scheck | Selbsttaetiger Fluessigkeitsheber |
US2068549A (en) * | 1933-05-23 | 1937-01-19 | Servel Inc | Heat transfer system |
US3053198A (en) * | 1958-02-21 | 1962-09-11 | Midland Ross Corp | Thermopump system |
US6042342A (en) * | 1996-10-02 | 2000-03-28 | T.D.I. --Thermo Dynamics Israel Ltd. | Fluid displacement system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012126023A2 (de) | 2011-03-23 | 2012-09-27 | Solar Frost Labs Pty Ltd | Solarkühlung mit einer ammoniak-wasser-absorptionskältemaschine |
CN105849476A (zh) * | 2013-10-21 | 2016-08-10 | 索拉尔弗罗斯特实验室有限公司 | 呈板设计的调节吸收式制冷机 |
Also Published As
Publication number | Publication date |
---|---|
AU2003229343A1 (en) | 2003-11-11 |
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