GB2447628A - Ultrasonic nebulising system for evaporating the waste water created by a refrigerated cabinet during defrost - Google Patents
Ultrasonic nebulising system for evaporating the waste water created by a refrigerated cabinet during defrost Download PDFInfo
- Publication number
- GB2447628A GB2447628A GB0705172A GB0705172A GB2447628A GB 2447628 A GB2447628 A GB 2447628A GB 0705172 A GB0705172 A GB 0705172A GB 0705172 A GB0705172 A GB 0705172A GB 2447628 A GB2447628 A GB 2447628A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ultrasonic
- transducers
- controlled
- fitted
- outlet
- 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.)
- Withdrawn
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 5
- 238000001704 evaporation Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 3
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract 4
- 229940079593 drug Drugs 0.000 claims abstract 2
- 239000003814 drug Substances 0.000 claims abstract 2
- 235000013305 food Nutrition 0.000 claims abstract 2
- 230000003287 optical effect Effects 0.000 claims abstract 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000010257 thawing Methods 0.000 abstract 1
- 238000000889 atomisation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0615—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced at the free surface of the liquid or other fluent material in a container and subjected to the vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/0012—Apparatus for achieving spraying before discharge from the apparatus
-
- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
An ultrasonic nebulising system using a series of switched low voltage alternating current (AC) controlled transducers 'M' inside an atomising chamber 'C' to evaporate and vent, with the assistance of a fan 'J', through an outlet to atmosphere 'D' the waste water discharged from a refrigerated display cabinet during defrost. The system can be used as a direct replacement for a conventional drip tray and rod heating element. Alternatively, the system may be used as a direct replacement for a pump unit. Preferably, the number of ultrasonic nebulising modules fitted to the atomising chamber is proportional to the discharge rate of water produced during defrosting. The switching of the transducers may be controlled by a horizontally mounted float switch with a pivoting actuator magnet and reed switch, a vertically mounted float switch 'G' with a magnet and reed switch, or an optical liquid level sensor. Preferably, the outlet is ducted to allow the nebulised water particles to pass through a condenser coil to reduce the discharge pressure of a compressor unit. Direct current (DC) controlled transducers may be fitted to the atomising chamber. An ultraviolet lamp 'F' may be fitted to the outlet vent for sterilisation purposes. Preferably, the refrigerated display cabinet comprises a chilled or freezer cabinet suitable for food, drinks or medication. In use, the system provides an efficient energy saving method for dealing with the problem of evaporating the waste water discharged from a refrigerated cabinet after a defrost cycle; the system provides a self contained direct replacement for the heating element and evaporation drip tray that is typically found in commercial refrigerated display cabinets.
Description
BOND ULTRASONIC NEBULISER SYSTEM
DESCRIPTION
BACKGROUND OF THE INVENTION
001. Throughout this description the Bond Ultrasonic Nebuliser system will be referred to as uThe BUN sYstem" 002. The BUN system is predominately marketed at the Supermar$cet sector and other independent retailers as an alternative to traditional refrigerated cabinet drainage.
STATEMENT OF INVENTION
003.The BUN system was primarily invented as a self contained direct replacement of a heating element and evaporation tray / drip tray that is typically used fl refrigerated display cabinets to evaporate waste water discharged after the cabinet has completed a defrost cycle 004. The BUN system was invented and tested as an energy efficient means of dealing with the problem of water displacement (003) throughout the refrigerated display cabinet market. This includes Multi deck, Half Glass Door, Well, Full Glass Door, Roll In cabinets, Deli counters on remote and integral applianc, low and high temperature
ADVANTAGES
005. Heaters traditionally fitted to refrigerated cabinets for evaporation purposes are based around 900 watt to I Kilowatt. The BUN system operates using 10% of the energy required to run these traditional rod heaters.
INTRODUCTION TO DRAWlNc3s
006. Figure 1 shows a basic example of the atomisation chamber construction venting to atmosphere.
007. Figure 2 shows a basic example of the atomisation chamber construction venting to atmosphere with the addition of an ultra violet light.
008. Figure 3 shows a basic example of the atomisation chamber construction being ducteci back over the condenser coil.
009. Figure 4 shows a basic example of the atomisation chamber construction being ducted back over the condenser coil with the addition of an ultra violet light.
010. Key to reference letters on drawing: (A) Cabinet drainage (B) Atomising chamber inlet (C) Atomising chamber (0) To Atmosphere (E) Atomising chamber Outlet vent (F) Ultraviolet light (G) Float switch (H) Nebulisecj water particles (I) Direction of Air flow (J) Fan (K) Atomising chamber Drainage outlet (L) Transducer drive circuit board (M) Transducer (N) Transformer (0) Atomising chamber inlet vent (P) Power supply (Q) Duct
DETAILED DESCRIPTION
011. The BUN system uses a vessel as an atomisation chamber (C)to collect the water that is discharged through the atomising chamber inlet (B) from the refrigerated display cabinets drainage system (A) during the cabinets defrost period. The water discharged form the cabinet is melted ice (demineralised water) that has formed on the evaporator coil during normal operation.
012. The atomising chamber (C) used to collect the water is sized accordingly against the drainage output (A) requirement of the refrigerated display cabinet.
013. The base of the atomlslng chamber (C) has a series of ultrasonic transducers (M) mounted to it.
The number of transducers (M) used in each unit is proportional to the size of the atomising chamber (C) and the cabinets drainage (A) output.
014. A float switch I water level sensor ((3) is also attached to the base of the atomising chamber (C), ensuring that the fransduce, (M) always have adequate water coverage and are only in operation when required.
015. Once the float switch (G) has been activated by an adequate amount of water the power supply (P) energises the drive circuit boards (L) via the transformer (N). The drive circuit boards (1) now energise the transducers (M) and the process of nebubsation begins (020).
016. During the process of nebulisatjon a low wattage blow fan (J) creates air turbulence (I) across the top of the atom ising chamber (C) which causes the nebulised water particles (H) to vent Out of the atomising chamber (C) through the outlet valve (E) and evaporate into the atmosphere (D) quickly and efficiently.
017. The nebulieed water particles (ii) can be directed through the condenser coil of the refrigerated cabinet for increased performance and improved life expectancy of the compressor unit (022).
018. The base of the atomising chamber (C) is fitted with a small drainage outlet (K) for maintenance Purposes.
019. Dependa on the type of refrigerated cabinet the system is fitted to the fan (J) can be replaced with a draw blade to extract the nebuliseci water particles (H) through a duct (Q) and then on to the condenser as per (017). This arrangement is shown in figure 3 and 4.
020. Figure 2 and 4 show the addition of an ultraviolet fight (F) which provides ultraviolet sterilisation to any Stored water.
IECHINCAL UNDERSTANDING OF HOW IT WORKS
021. The BUN system uses ultrasonic nebulising modules and transducers to create Nebulising.
These modules are electronic oscillator Circuits that power the transducers at high frequency. The transducers are matched at their resonant frequency and generate a mechanical vibration. Water inside the atomisatjon chamber is in direct contact with the vibrating faces I plates of the transducers.
This causes the water to vibrate. Because of fts mass, the water is unable to follow the high frequency oscillation of the transducers and cavitation occurs. When this process begins below the surface of the water, refractej capillary waves are generated, throwing off a cool dense cloud / mist of water particles.
022. To prevent the evaporated water particles from condensing back to a liquid form, a low wattage fan is use to blow out the evaporated water through a vent or Is drawn through a ducting system, out of the atomising chamber.
023. The dense cloud! mist of nebulised water particles created as a result of nebulising has a cooling effect whIch If harnessed can be re-directed to flow across the face of the condenser coil. This cooling effect will help the condenser reject the heat gained from the load within the refrigerated area. This will therefore due to the pressure I temperature relationship of the refrigerant reduce the discharge pressure from the compressor, therefore prolonging it's life and reducing it's running cost.
Claims (10)
- (LAJMS 1. An ultrasonic nebuhsing system, using a series of switchedlow voltage AC controfled transducers inside an atomising chamber to evaporate and vent, fan assisted, through an outlet to atmosphere the waste water discharged from a refrigerated display cabinet during defrost, as a direct replacement of a rod heating element and drip tray.
- 2. An ultrasonic nebuliser system according to claim 1, in which the system is a direct replacement of a pump unit.
- 3. An ultrasonic nebuiiser system according to claim 1, in which the number of Ultrasonic Nebulising modules fitted to the atomising chamber is proportional to the discharge rate of water produced during the defrost.
- 4. An ultrasonic nebuliser system according to claim 1, in which the switching of the transducers is controlled by a horizontally mounted float switch with pivoting actuator magnet and reed switch.
- 5. An ultrasonic nebuliser system according to claim 1, in which the switching of the transducers is controlled by a vertically mounted float switch with magnet and reed switch.
- 6. An ultrasonic nebuliser system according to claim 1, in which the switching of the transducers is controlled by an optical liquid level sensor.
- 7. An ultrasonic nebuliser system according to claim I * in which the outlet is ducted to allow the nebuijsed water particles to pass through the condenser coil to reduce the discharge pressure of the compressor unit.
- 8. An ultrasonic nebuliser system according to claim 1, in which DC controlled transducers are fitted to the atomising chamber.
- 9. An ultrasonic nebuliser system according to claim 1, in which an ultraviolet lamp is fitted to the vent for sterilisation purposes.
- 10. An ultrasonic nebuliser system according to claim 1, in which the term refrigerated display cabinet is defined as chilled and frozen cabinets, remotely and integrally operated, used for food, drinks or medication purposes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0705172A GB2447628A (en) | 2007-03-17 | 2007-03-17 | Ultrasonic nebulising system for evaporating the waste water created by a refrigerated cabinet during defrost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0705172A GB2447628A (en) | 2007-03-17 | 2007-03-17 | Ultrasonic nebulising system for evaporating the waste water created by a refrigerated cabinet during defrost |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0705172D0 GB0705172D0 (en) | 2007-04-25 |
| GB2447628A true GB2447628A (en) | 2008-09-24 |
Family
ID=38008623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0705172A Withdrawn GB2447628A (en) | 2007-03-17 | 2007-03-17 | Ultrasonic nebulising system for evaporating the waste water created by a refrigerated cabinet during defrost |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2447628A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933692A (en) * | 2014-04-20 | 2014-07-23 | 郑州大学 | Intelligent ultrasonic atomization fire extinguisher |
| ITVI20130270A1 (en) * | 2013-11-08 | 2015-05-09 | Carel Ind Spa | REFRIGERATING MACHINE |
| CN109046861A (en) * | 2018-09-06 | 2018-12-21 | 广东奥迪威传感科技股份有限公司 | Atomising head and atomization amount adjustment method based on it |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003202179A (en) * | 2001-12-28 | 2003-07-18 | Sendak Corp | Drain water evaporating disposition device for freezing and refrigerator show case |
| DE202004005545U1 (en) * | 2004-04-10 | 2005-02-10 | Schwenecke, Raimund | Disposing of condensate water from refrigeration systems has collector with ultrasonic generator to atomize water and fan extraction system |
| WO2005047785A1 (en) * | 2003-11-12 | 2005-05-26 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigeration device with improved condensed water elimination |
-
2007
- 2007-03-17 GB GB0705172A patent/GB2447628A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003202179A (en) * | 2001-12-28 | 2003-07-18 | Sendak Corp | Drain water evaporating disposition device for freezing and refrigerator show case |
| WO2005047785A1 (en) * | 2003-11-12 | 2005-05-26 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigeration device with improved condensed water elimination |
| DE202004005545U1 (en) * | 2004-04-10 | 2005-02-10 | Schwenecke, Raimund | Disposing of condensate water from refrigeration systems has collector with ultrasonic generator to atomize water and fan extraction system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITVI20130270A1 (en) * | 2013-11-08 | 2015-05-09 | Carel Ind Spa | REFRIGERATING MACHINE |
| CN103933692A (en) * | 2014-04-20 | 2014-07-23 | 郑州大学 | Intelligent ultrasonic atomization fire extinguisher |
| CN103933692B (en) * | 2014-04-20 | 2017-05-10 | 郑州大学 | Intelligent ultrasonic atomization fire extinguisher |
| CN109046861A (en) * | 2018-09-06 | 2018-12-21 | 广东奥迪威传感科技股份有限公司 | Atomising head and atomization amount adjustment method based on it |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0705172D0 (en) | 2007-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5752338B2 (en) | refrigerator | |
| JP4910353B2 (en) | refrigerator | |
| WO2010012967A1 (en) | Bond ultrasonic nebuliser system | |
| JP2005337694A (en) | Refrigerator | |
| JP2007240056A (en) | Refrigerator | |
| GB2447628A (en) | Ultrasonic nebulising system for evaporating the waste water created by a refrigerated cabinet during defrost | |
| JP2006112737A (en) | Refrigerator | |
| JP2011069604A (en) | Refrigerator | |
| JP2006046769A (en) | Refrigerator | |
| JP2010249428A (en) | Refrigerator | |
| JP2010249427A (en) | Refrigerator | |
| JP2011047549A (en) | Refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |