GB2285500A - Temperature conditioning installation - Google Patents
Temperature conditioning installation Download PDFInfo
- Publication number
- GB2285500A GB2285500A GB9422406A GB9422406A GB2285500A GB 2285500 A GB2285500 A GB 2285500A GB 9422406 A GB9422406 A GB 9422406A GB 9422406 A GB9422406 A GB 9422406A GB 2285500 A GB2285500 A GB 2285500A
- Authority
- GB
- United Kingdom
- Prior art keywords
- refrigerant
- ice
- mixture
- ice machine
- installation
- 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.)
- Granted
Links
- 238000009434 installation Methods 0.000 title claims abstract description 23
- 230000003750 conditioning effect Effects 0.000 title claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000003507 refrigerant Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000005065 mining Methods 0.000 claims abstract description 7
- 238000007790 scraping Methods 0.000 abstract 3
- 239000010419 fine particle Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
-
- 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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/12—Producing ice by freezing water on cooled surfaces, e.g. to form slabs
- F25C1/14—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes
- F25C1/142—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes from the outer walls of cooled bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Jet Pumps And Other Pumps (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Installation for the temperature conditioning of an underground mining operation, with at least one air cooler and an ice machine which produces a pumpable mixture of a liquid and fine-particle ice, the ice machine being connected to the air cooler via at least one line connected to the ice machine and carrying the mixture. The ice machine has an ice-machine container which has a bank of refrigerant guide tubes distributed over its cross-section. The refrigerant guide tubes are arranged horizontally with a gap in between and are connected to a refrigerating machine for the cooling of the refrigerant. The liquid of the mixture can be fed into the interior space of the container. At least one scraping disc is slipped onto the bank of refrigerant guide tubes. The scraping disc has tube passage openings allocated to the refrigerant guide tubes and can be driven in a reciprocating manner on the refrigerant guide tubes via a drive. Ice deposited on the refrigerant guide tubes can be scraped off during the reciprocating movement of the scraping disc. … <IMAGE> …
Description
2285500 "TEMPERATURE CONDITIONING INSTALLATION" This invention relates to
an installation for conditioning the temperature of an underground mining operation having at least one air cooling apparatus and an ice machine which produces a pumpable mixture comprising a liquid and finely-divided ice, wherein the ice machine is connected to the air cooling apparatus via at least one line which carries the mixture and is connected to the ice machine. The air cooling apparatus may be an air cooling apparatus which is constructed as a normal heat exchanger and which comprises a corresponding tube bank through which the mixture flows. However it is also possible to combine the air cooling apparatus with a vortex tube (DE 42 39 226.8 Cl). It is to be understood that in an installation of the construction described initially the ice machine is connected to a refrigerating installation which supplies the "refrigeration" necessary for the production of ice to the ice machine.
in the known installation from which the present invention stems, the ice machine has an ice machine container which comprises vertically disposed tubes distributed over its cross-section with intermediate clearance spacing. The refrigerant does not flow through these tubes, but round them. Layers of ice are formed in the tubes, on the inside walls of the latter. They are scraped off with the aid of spiral conveyors introduced into the tubes, taken up by the liquid which forms the ice/liquid mixture, and discharged as a mixture.
These known measures are costly.
A relatively large cross-section has to be selected for the tubes, so that the conveyor spirals or similar elements can operate in the tubes. The number of vertical tubes which can be accommodated in an ice machine container of predetermined volume is relatively low. due to the relatively large tube cross-section. The ice production capacity, which to a first approximation is proportional to the extent of the surface on which the ice forms, is also correspondingly low. If the volume of the ice machine is increased, the ice machine interferes with the working of underground mining operations on account of the sectional restrictions in galleries and/or at faces.
A basic object of the present invention is the achievement of a significant increase in the production capacity of ice in an installation of the type described initially and which has the purpose of use described initially, without the volume of the ice machine container having to be increased. In other words. the object is to increase the production capacity of ice of the ice machine of an installation of the construction described initially.
According to the present invention there is provided an installation for conditioning the temperature of an underground mining operation having at least one air cooling apparatus and an ice machine which produces a pumpable mixture comprising a liquid and finely-divided ice, wherein the ice machine is connected to the air cooling apparatus via at least one line which carries the mixture and is connected to the ice machine, characterised in that the ice machine has an ice machine container which comprises a bundle of horizontally disposed refrigerant-carrying tubes which are distributed over its cross- section with intermediate clearance spacing and which are connected to a refrigerating installation for cooling the refrigerant, that the liquid of the mixture can be introduced into the container interior space and the mixture can be discharged from the container interior space, that at least one scraper plate is placed on the bundle of refrigerant-carrying tubes, which scraper plate has tube passageway openings associated with the refrigerant-carrying tubes, that the scraper plate is driven in reciprocating motion on the refrigerant-carrying tubes via a drive and ice deposited on the refrigerant-carrying tubes can be scraped off during the reciprocating motion of the scraper plate.
The invention stems from the recognition that in an installation of the construction described initially and which has the purpose of use described initially, a significantly increased surface area-of refrigerant-carrying tubes can be accommodated in a predetermined volume of the ice machine container if these tubes are disposed horizontally and if the ice layers are scraped off not via inserted spiral conveyors or the like but via at least one fitted scraper plate. The periodicity of this scraping-off operation is selected so that the layer of ice does not become too thick, because this impairs heat transfer. Consequently, the scraper plate is set in reciprocating motion as described above at relatively short time intervals. So that the scraping-off operation is effected very completely, the invention teaches that the scraper plate has scraper elements in the tube passageway openings, which are seated against the surface of the refrigerant- carrying tubes.
A multiplicity of scraper plates with the same spacing will generally be disposed on the refrigerant-carrying tubes, wherein the scraper plates are set in reciprocating motion with a stroke which is greater by a slight excess than this spacing.
In an installation according to the invention, the mixture is preferably discharged in a particular manner. In this respect the invention teaches that a collecting chamber for the mixture is disposed on the ice machine container, to which collecting chamber the line leading to the air cooling apparatus is connected, and that the mixture can be pushed into this line with the assistance of a pump. The pump is advantageously a spiral pump, for example a spiral pump like the so-called Moineau pumps.
The invention is described in more detail below with reference to the drawings, which are schematic illustrations of merely one example of an embodiment, and where:
Figure 1 is a cross-section through the ice machine of an installation according to the invention in the direction A-A of Figure 2; Figure 2 is subject of Figure 1; Figure 3 illustrates the enlarged portion B of the subject of Figure 2; and Figure 4 illustrates the enlarged portion C of the subject of Figure 2.
a longitudinal section through the The ice machine illustrated in the drawings forms part of an installation for conditioning the temperature of an underground mining operation having at least one air cooling apparatus and an ice machine 1 which produces a pumpable mixture comprising a liquid and finely-divided ice. The ice machine 1 is connected to the air cooling apparatus via at least one line which carries the mixture and is connected to the ice machine.
A comparative examination of Figures 1 and 2 shows 10 that the ice machine 1 has a container 2 which comprises a bundle of horizontally disposed refrigerant-carrying tubes 4 which are distributed over its cross-section with intermediate clearance spacing 3 and which are connected to a refrigerating installation for cooling the refrigerant. The liquid of the mixture can be introduced into the container interior space 5. The mixture can be discharged. In this respect reference is made to the arrows 6 and 7, respectively. A comparative examination of Figures 1 and 2 also shows that a multiplicity of scraper plates 8 is placed on the bundle of refrigerant- carrying tubes 4, which scraper plates have tube passageway openings 9 associated with the refrigerant-carrying tubes 4. The arrangement is effected so that the scraper plates 8 are driven in reciprocating motion on the refrigerant-carrying tubes 4 via a drive 10. Layers of ice which have formed on the refrigerant-carrying tubes 4 can be scraped off during the reciprocating motion. In the embodiment illustrated, and according to a preferred embodiment of the invention, the scraper plates 8 have scraper elements 11 in the tube - 6.- passageway openings 9, which are seated against the surface of the refrigerant-carrying tubes 4. In the embodiment illustratedi which has a multiplicity Of scraper plates 8, the latter can execute a horizontal stroke which is greater by a slight extent than the spacing 12 between the individual scraper plates 8. The drive 10 for the scraper plates 8 may be accomplished in various manners and is merely indicated. Figure 3 illustrates a scraper element 11 which is seated against the surface of a refrigerant-carrying tube 4.
A collecting chamber 13 for the mixture is disposed on the ice machine container 2. to which collecting chamber the line 14 leading to the air cooling apparatus is connected, and the mixture can be pushed into this line with the assistance of a pump 15. The pump may be a spiral pump, the spiral 16 of which is indicated.
A comparative examination of Figures 2 and 4 shows that the refrigerantcarrying tubes 4 are inserted in tube bases 17, with a distribution chamber 18 for the inflowing refrigerant and a collector 19 for the outflowing refrigerant being disposed upstream and downstream, respectively, of the tube bases. Moreover, Figure 4 clearly shows that displacement bodies 20 can be inserted in the refrigerantcarrying tubes 4. - These displacement bodies are simultaneously designed as pressure absorbing tie bolts 21 in order to absorb the internal pressure of the ice machine container 2.
Claims (6)
1. An installation for conditioning the temperature of an underground mining operation having at least one air cooling apparatus and an ice machine which produces a pumpable mixture comprising a liquid and finelydivided ice, wherein S the ice machine is connected to the air cooling apparatus via at least one line which carries the mixture and is connected to the ice machine, characterised in that the ice machine (1) has an ice machine container (2) which comprises a bundle of horizontally disposed refrigerant- carrying tubes (4) which are distributed over its cross-section with intermediate clearance spacing (3) and which are connected to a refrigerating installation for cooling the refrigerant, that the liquid of the mixture can be introduced into the container interior space (5) and the mixture can be discharged from the container interior space (5), that at least one scraper plate (8) is placed on the bundle of refrigerant-carrying tubes (4), which scraper plate has tube passageway openings (9) associated with the refrigerant-carrying tubes (4), that the scraper plate (8) is driven in reciprocating motion on the refrigerant-carrying tubes (4) via a drive (10) and ice deposited on the refrigerant-carrying tubes (4).can be scraped off during the reciprocating motion of the scraper plate (8).
2. An installation according to claim 1, characterised in that the scraper plate (8) has scraper elements (11) in the tube passageway openings (9), which are seated against the surface of the refrigerant-carrying tubes (4).
3. An installation according to any one of claims 1 to 3. characterised in that a multiplicity of scraper plates (8) with the same spacing (12) is disposed on the refrigerantcarrying tubes (4), and that the scraper plates (8) can be set in reciprocating motion with a stroke which is in excess of the spacing (12).
4. An installation according to any one of claims 1 to 3, characterised in that a collecting chamber (13) for the mixture is disposed on the ice machine container (2), to which collecting chamber the line (14) leading to the air cooling apparatus is connected. and that the mixture can be pushed into this line with the assistance of a pump (15).
5. An installation according to claim 4, characterised in that the pump (15) is constructed as a spiral pump in the manner of a Moineau pump.
6. An installation for conditioning the temperature of an underground mining operation substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4341024A DE4341024C1 (en) | 1993-12-02 | 1993-12-02 | Installation for the temperature conditioning of an underground mining operation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9422406D0 GB9422406D0 (en) | 1995-01-04 |
| GB2285500A true GB2285500A (en) | 1995-07-12 |
| GB2285500B GB2285500B (en) | 1997-07-23 |
Family
ID=6503962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9422406A Expired - Fee Related GB2285500B (en) | 1993-12-02 | 1994-11-07 | Temperature conditioning installation |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1112983A (en) |
| DE (1) | DE4341024C1 (en) |
| GB (1) | GB2285500B (en) |
| PL (1) | PL174295B1 (en) |
| RU (1) | RU94042236A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19938044C1 (en) * | 1999-08-12 | 2000-10-05 | Fraunhofer Ges Forschung | Ice generator for providing ice slurry uses stripping devices for removing ice from inside walls of parallel pipes for aqueous medium within heat exchanger |
| CN102562121A (en) * | 2012-03-02 | 2012-07-11 | 中国科学院理化技术研究所 | Ice storage refrigerating system for powerless refuge chamber or rescue cabin |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4420622C2 (en) * | 1994-06-13 | 2002-05-02 | Rag Ag | Cooling unit for underground mining operations |
| DE19532694C1 (en) * | 1995-09-05 | 1996-09-12 | Waermetechnik Gmbh | Air-cooler for underground mine |
| CN1144934C (en) * | 1999-11-05 | 2004-04-07 | 斯玛特兰斯普兰有限公司 | Central cooling method for deep underground mining operation area |
| DE10042992A1 (en) * | 2000-09-01 | 2002-03-28 | Rag Ag | Deeply cooled water generation method for mine or tunnel cooling has heat exchanger supplied with cooling medium at temperature below water freezing point |
| DE10053633B4 (en) * | 2000-10-28 | 2004-09-30 | Bernd Henting | Plant for the production of pumpable ice for industrial purposes |
| CN100491698C (en) * | 2008-01-29 | 2009-05-27 | 何满潮 | Deep mine modularized assembling mobile cooling device |
| CN100455770C (en) * | 2008-01-29 | 2009-01-28 | 何满潮 | Cold air radiating system and method for hot working face of deep mine |
| CN102182502A (en) * | 2011-04-08 | 2011-09-14 | 北京光华创世科技有限责任公司 | Second-generation ice storage equipment of mining rescue capsule |
| CN102644474A (en) * | 2012-04-25 | 2012-08-22 | 大连亿斯德制冷设备有限公司 | Mobile cooling refrigeration device for mine |
| CN102901297B (en) * | 2012-10-19 | 2014-10-08 | 哈尔滨工业大学 | Plate type translation ice scraping cold water solidification latent heat exchanger |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4005426C2 (en) * | 1990-02-21 | 1994-02-17 | Waermetechnik Gmbh | Plant for the temperature conditioning in a quarry of an underground mining operation |
| DE4239226C1 (en) * | 1992-11-21 | 1993-11-18 | Waermetechnik Gmbh | Installation for temp. conditioning of coal-face - involves at least one eddy tube cooler with at least one tube having input side compressed air inlet and outlet side cold air central shutter and warm air ring shutter |
-
1993
- 1993-12-02 DE DE4341024A patent/DE4341024C1/en not_active Expired - Fee Related
-
1994
- 1994-11-07 GB GB9422406A patent/GB2285500B/en not_active Expired - Fee Related
- 1994-11-30 PL PL94306053A patent/PL174295B1/en unknown
- 1994-12-01 RU RU94042236/03A patent/RU94042236A/en unknown
- 1994-12-01 CN CN94119029A patent/CN1112983A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19938044C1 (en) * | 1999-08-12 | 2000-10-05 | Fraunhofer Ges Forschung | Ice generator for providing ice slurry uses stripping devices for removing ice from inside walls of parallel pipes for aqueous medium within heat exchanger |
| WO2001013052A1 (en) | 1999-08-12 | 2001-02-22 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. | Ice generator for the production of an aqueous ice-crystal suspension |
| CN102562121A (en) * | 2012-03-02 | 2012-07-11 | 中国科学院理化技术研究所 | Ice storage refrigerating system for powerless refuge chamber or rescue cabin |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4341024C1 (en) | 1994-12-15 |
| RU94042236A (en) | 1996-10-10 |
| GB2285500B (en) | 1997-07-23 |
| GB9422406D0 (en) | 1995-01-04 |
| PL174295B1 (en) | 1998-07-31 |
| CN1112983A (en) | 1995-12-06 |
| PL306053A1 (en) | 1995-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2285500A (en) | Temperature conditioning installation | |
| CN1116566C (en) | Evaporator refrigerant distributor | |
| CN108779968B (en) | Heat exchanger | |
| US6516627B2 (en) | Flowing pool shell and tube evaporator | |
| DE69737315T2 (en) | exhaust system | |
| EP0135106B1 (en) | Method of freezing products by contact with a cryogenic fluid and cryogenic freezer for freezing of products | |
| US6000465A (en) | Heat exchange with a receiver | |
| US20030121648A1 (en) | Counter-flow heat exchanger with optimal secondary cross-flow | |
| US6623253B1 (en) | Compressor | |
| US9482453B2 (en) | Air dryer assembly | |
| US3274797A (en) | Heat exchanger including a capillary tube section | |
| EP0177925A1 (en) | A motor pump unit for a high-pressure cleaning unit | |
| US5183105A (en) | Opposed canted evaporator | |
| US2384413A (en) | Cooler or evaporator | |
| EP1671068B1 (en) | Economizer chamber for minimizing pressure pulsations | |
| CN1491340A (en) | Apparatus and method for discharging vapour and liquid | |
| SU1454246A3 (en) | Sluice gate for conveyance of loose material between compartments | |
| EP2523743B1 (en) | Air dryer assembly | |
| US5214938A (en) | Spine fin refrigerator evaporator having generally oval spiral configuration | |
| US3358385A (en) | Reciprocating grate conveyor with side wall damage preventing means | |
| JPH04227486A (en) | Method of cleaning wall of heat exchanger and heat exchanger having means for said cleaning | |
| US4280799A (en) | Compressor with guide baffles and gas-permeable material separating means | |
| US4134450A (en) | Surface condenser with vertically separated tube bundles | |
| US4350022A (en) | Refrigerant transfer system | |
| CN1188883A (en) | Condenser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19981107 |