DE3506788C2 - - Google Patents
Info
- Publication number
- DE3506788C2 DE3506788C2 DE19853506788 DE3506788A DE3506788C2 DE 3506788 C2 DE3506788 C2 DE 3506788C2 DE 19853506788 DE19853506788 DE 19853506788 DE 3506788 A DE3506788 A DE 3506788A DE 3506788 C2 DE3506788 C2 DE 3506788C2
- Authority
- DE
- Germany
- Prior art keywords
- temperature
- gas
- gas stream
- heated
- filter
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/44—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
- A61M5/445—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media the media being heated in the reservoir, e.g. warming bloodbags
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
- G05D23/138—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/362—General characteristics of the apparatus related to heating or cooling by gas flow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/368—General characteristics of the apparatus related to heating or cooling by electromagnetic radiation, e.g. IR waves
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Description
Die Erfindung betrifft eine Regelung der Temperatur von zu erwärmendem Gut in einem Ofen mit Infrarotstrahlern mit den Merkmalen im Oberbegriff des Patentanspruchs. Eine solche Regelung ist aus der DE-OS 26 31 352 bekannt. Dort dient der über das zu erwärmende Gut (z. B. Glasflaschen zur Abfüllung von parenteralen Arzneimitteln) streichende laminare Gasstrom der Sicherstellung einer partikelarmen Umgebung. Der Gasstrom wird aus dem Strom der Kühlzone abgezweigt und strömt entgegen der Transportrichtung des Gutes durch die Heizzone.The invention relates to a regulation of the temperature of warming goods in an oven with infrared radiators Features in the preamble of the claim. Such a scheme is known from DE-OS 26 31 352. There serves over the goods to be heated (e.g. glass bottles for filling parenteral drugs) sweeping laminar gas flow of the Ensuring a low-particle environment. The gas flow will branched off from the flow of the cooling zone and flows towards it the direction of transport of the goods through the heating zone.
Durch die DE-AS 12 48 234 ist ein automatischer Heißluftsterilisator nach dem Umluftprinzip mit einem Temperaturfühler ein Umluft kanal zur Temperaturregelung bekannt. Die Heizelemente erwärmen einerseits die Luft, vor der sie umflossen werden, und andrerseits den unteren, kältesten Teil des Sterilisierraums durch Strahlung.DE-AS 12 48 234 is an automatic hot air sterilizer a recirculating air according to the recirculating air principle with a temperature sensor Channel known for temperature control. Warm up the heating elements on the one hand the air in front of which they flow, and on the other hand the lower, coldest part of the sterilization room by radiation.
Bisher war es nicht möglich, eine kontinuierliche Kontrolle über den Temperaturverlauf des zu erwärmenden Gutes (Behältnisse und Zubehör von parenteralen Arzneimitteln) zu erlangen. Die bisherigen Verfahren waren darauf angewiesen, durch Probeläufe, insbesondere bei Durchlaufprozessen, eine repräsentative Einstellung der Betriebs daten zu ermitteln, bei denen das Gut den erwünschten Temperaturverlauf erlangte.So far it has not been possible to have a continuous Control over the temperature profile of the goods to be heated (containers and accessories of parenteral drugs). The previous procedures were relied on by trial runs, especially at Continuous processes, a representative attitude of operation to determine data where the good achieved the desired temperature profile.
Die Einstellung des Durchlaufofens mußte demzufolge bei jeder Änderung der Durchgangsleistung neu ermittelt und festgelegt werden.The setting of the continuous furnace therefore had to with every change in the throughput be redetermined and determined.
Aufgabe der Erfindung ist es, eine Regelung der gattungsgemäßen Art zu verbessern.Task of The invention is to improve a regulation of the generic type.
Diese Aufgabe wird durch die im kennzeichnenden Teil des
Patentanspruchs angegebenen Merkmale gelöst.
This object is achieved by the features specified in the characterizing part of the patent claim.
Die Erfindung wird anhand der Figur erläutert.The invention is explained with reference to the figure.
Das zu erwärmende Gut (10), z. B. Behältnisse für parenterale Arzneimittel (Vials), gelangt über eine Fördereinrichtung 5 in den Bereich der Infrarotstrahler 4 und wird dadurch erwärmt. Die vom Gasstrom 11 aufgenommene Wärmeenergie des Gutes 10 wird über einen Umluftkanal auf das Gut 10 zurückgeführt und erwärmt dieses zusätzlich durch Konvektion.The material to be heated ( 10 ), e.g. B. Containers for parenteral drugs (vials), reaches the area of the infrared radiators 4 via a conveyor 5 and is thereby heated. The thermal energy of the material 10 absorbed by the gas stream 11 is returned to the material 10 via a recirculating air duct and additionally heats it up by convection.
Der Temperaturfühler 1 mißt die Temperatur des Gasstroms 11 unterhalb des Gutes 10 und überwacht indirekt die Gutstemperatur. Diese Temperatur ist von der Durchlaufgeschwindigkeit des Gutes 10 und dessen Beschaffenheit und Menge abhängig. Diese Abhängigkeit wird genutzt, um durch Regeleinrichtungen die Förderein richtung 5 zu beeinflussen.The temperature sensor 1 measures the temperature of the gas stream 11 below the material 10 and indirectly monitors the material temperature. This temperature depends on the throughput speed of the goods 10 and its nature and quantity. This dependency is used to influence the conveying device 5 by means of control devices.
Dieser Erwärmungsvorgang findet gemeinsam durch Konvektion und Strahlung solange statt, bis die eingestellte Temperatur des Gasstromes 11 erreicht ist.This heating process takes place together by convection and radiation until the set temperature of the gas stream 11 is reached.
Naturgemäß ist dann die Gutstemperatur höher als die Temperatur des Gasstromes 11.The material temperature is then naturally higher than the temperature of the gas stream 11 .
Um zu verhindern, daß die Infrarotstrahlung stetig das Gut 10 und somit auch den laminaren Gasstrom 11 erwärmt, wird über eine Steuerklappe 8 Frischgas 12 (z. B. mit Raumtemperatur) zugeführt. Der Temperaturfühler 2 erfaßt die Temperatur des Gasstromes 11 + 12 und reguliert die Steuerklappe 8 und den Ventilator 6 entsprechend.In order to prevent the infrared radiation from constantly heating the material 10 and thus also the laminar gas stream 11 , fresh gas 12 (eg at room temperature) is supplied via a control flap 8 . The temperature sensor 2 detects the temperature of the gas stream 11 + 12 and regulates the control flap 8 and the fan 6 accordingly.
Der Druckfühler 3 mißt den veränderten Druck und reguliert die Abgasklappe 9 entsprechend.The pressure sensor 3 measures the changed pressure and regulates the exhaust flap 9 accordingly.
Da oberhalb des Filters 7 der Gasdruck konstant ist, muß die Strömungsgeschwindigkeit des Gasstromes 11 unterhalb des Filters 7 ebenfalls konstant sein.Since the gas pressure is constant above the filter 7 , the flow rate of the gas stream 11 below the filter 7 must also be constant.
Da die Gastemperatur oberhalb des Gutes 10 durch 2, 8 und 6 konstant gehalten wird, ergibt sich an dem Temperaturfühler 1 eine für jedes zu erwärmende Gut eine repräsentative Temperatur.Since the gas temperature above the material 10 is kept constant by 2, 8 and 6 , the temperature sensor 1 gives a representative temperature for each material to be heated.
Damit ist eine Aussage über den Temperaturverlauf während des gesamten Erwärmungsvorgangs möglich.This is a statement about the temperature profile during of the entire heating process possible.
Durch diese Erfindung lassen sich folgende Vorteile erzielen:The following advantages can be achieved with this invention:
-
1. Da Konvektion und Strahlung das Gut gemeinsam erwärmen,
erreicht man die eingestellte Solltemperatur des Gutes
in wesentlich kürzerer Zeit.
Dies wirkt sich günstig auf die Baugröße der Anlage aus.1. Since convection and radiation heat the goods together, the set target temperature of the goods can be reached in a much shorter time.
This has a favorable effect on the size of the system. - 2. Da die Temperatur des Gasstromes unterhalb der zu erzielenden Guts temperatur liegt, ist der Einsatz von teuren nachbehandelten Hosch-Filtern nicht nötig. Man kann bei der hier be schriebenen Regelung auf handelsübliche billige Hosch-Filter zurückgreifen. Außerdem ist der Aufwand an Wärmeisolationsmaterial gering.2. Since the temperature of the gas flow is below the goods to be achieved temperature, the use of expensive post-treated Hosch filters are not necessary. You can be at the here wrote regulation on commercially available cheap Hosch filters To fall back on. In addition, the amount of thermal insulation material is low.
- 3. Da der gesamte Erwärmungsprozeß vollautomatisch ablaufen kann, können Fehler vom Bedienungspersonal weitgehend aus geschlossen werden.3. Since the entire heating process is fully automated errors can largely be identified by the operating personnel getting closed.
- 4. Die Regelung arbeitet energiesparsam, da Verlustleistungen mit in den Gasstrom gelangen. Werden geeignete Wärmetauscher mit dem anfallenden Abgas beschickt, arbeitet die Regelung wesentlich energieeinsparender als bisher bekannte Regelungen dieser Art.4. The regulation works in an energy-saving manner, since it is power loss also get into the gas stream. Become suitable Charged heat exchanger with the resulting exhaust gas works the regulation much more energy-saving than previously known Regulations of this kind.
- 5. Da die Erwärmungszeit des Gutes wesentlich verkürzt wird, ist auch die Gefahr einer Rekontamination (z. B. beim Sterilisieren) wesentlich geringer.5. Because the warming time of the goods is significantly reduced there is also the risk of recontamination (e.g. at the Sterilize) much less.
- 6. Bekanntlich neigen Hosch-Filter unter hoher Temperaturbe lastung zur verstärkten Abgabe von Partikeln. Da bei der erfindungsgemäßen Regelung die Temperaturbelastung wesentlich geringer ist, wird eine Partikelabgabe der Filter weitgehend vermieden.6. As is well known, Hosch filters tend to be exposed to high temperatures load for increased release of particles. Since at the control according to the invention the temperature load significantly is lower, a particle release of the filter is largely avoided.
-
7. Bei dem bisher bekannten Einsatz von Infrarotstrahlern, welche
zweckmäßiger Weise mit einem Reflektor aus Gold ausgerüstet
sind, verschleißt diese Goldauflage temperaturbedingt.
Da bei der erfindungsgemäßen Regelung die Infrarotstrahler durch den Gasstrom gekühlt werden, erzielt man wesentlich höhere Standzeiten dieser Strahler.7. With the previously known use of infrared radiators, which are expediently equipped with a reflector made of gold, this gold plating wears out due to temperature.
Since the infrared radiators are cooled by the gas flow in the control according to the invention, significantly longer service lives of these radiators are achieved.
Claims (1)
daß der Gasstrom (11) von oben auf das zu erwärmende Gut (10) quer zu dessen Transportrichtung geführt ist und die Geschwindigkeit der Fördereinrichtung (5) abhängig von der durch einen unterhalb der Gutsebene ange ordneten Temperaturfühler (1) erfaßten Temperatur des Gasstroms (11) gesteuert wird,
daß der Gasstrom (11) über einen Umluftkanal im Umlauf über das Gut (10) geführt wird, wobei die Temperatur des Gasstroms von einem im Umluftkanal angeordneten weiteren Temperaturfühler (2) erfaßt wird, der den Ventilator (6) steuert und eine die Zufüh rung von Frischgas (12) steuernde Steuerklappe (8) einstellt, und
daß der Gasdruck vor dem Filter (7) durch einen Druckfühler (3) erfaßt wird, der eine die Abführung von Abgas (13) steuernde im Raum vor dem Filter (7) angeordnete Ab gasklappe (9) einstellt.Regulation of the temperature of the material to be heated in a furnace with infrared radiators, the material to be heated being transported on a conveyor through the furnace and thereby being swept by a gas-guided and laminar-guided gas stream whose temperature is below the target material temperature and whose flow is adjustable by means of a fan arranged in front of the filter, characterized in that
that the gas stream (11) is guided from above of the goods to be heated (10) transversely to its transport direction and the speed of the conveyor (5) depending on the detected by a below the Gutsebene disposed temperature sensors (1) Temperature of the gas stream (11 ) is controlled
that the gas stream ( 11 ) is passed through a recirculating air duct in circulation over the material ( 10 ), the temperature of the gas stream being detected by a further temperature sensor ( 2 ) arranged in the recirculating air duct, which controls the fan ( 6 ) and one of the feeders of fresh gas ( 12 ) controlling the control flap ( 8 ), and
that the gas pressure is detected by a pressure sensor (3) before the filter (7), the gas discharge of the flap a flue gas (13) controlling disposed in the space in front of the filter (7) From (9) is established.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853506788 DE3506788A1 (en) | 1985-02-22 | 1985-02-22 | Method of continuously measuring and controlling the temperature course of containers and accessories for parenteral drugs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853506788 DE3506788A1 (en) | 1985-02-22 | 1985-02-22 | Method of continuously measuring and controlling the temperature course of containers and accessories for parenteral drugs |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3506788A1 DE3506788A1 (en) | 1985-07-18 |
DE3506788C2 true DE3506788C2 (en) | 1988-09-15 |
Family
ID=6263620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853506788 Granted DE3506788A1 (en) | 1985-02-22 | 1985-02-22 | Method of continuously measuring and controlling the temperature course of containers and accessories for parenteral drugs |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3506788A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT393330B (en) * | 1986-01-03 | 1991-09-25 | Vaillant Gmbh | DEVICE FOR REGULATING THE PROPORTIONAL SUPPLY OF VARIOUS TEMPERATURE HOT WATER FLOW RATES |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3510286A1 (en) * | 1985-03-19 | 1986-09-25 | Hans Gilowy Maschinenfabrik "Meteorwerk" GmbH & Co, 1000 Berlin | Method of operating radiation sterilisation apparatus and a device for carrying out the method |
DE4131258A1 (en) * | 1991-09-17 | 1992-05-07 | Siedler Torsten | Sterilisation appts. for medical flasks - with controlled cooling section air circulation to heating section |
DE4308360C1 (en) * | 1993-03-16 | 1994-10-27 | Transmed Medtech Gmbh | Warming and defrosting device |
DE10053132C1 (en) * | 2000-10-26 | 2002-04-11 | Reimer Wiepcke | Heating box has lid with hinge mobility/lid weight enabling gap to form under pressure in box to allow used air out when connector supplied with normal flow of hot air from patient heater |
DE10158571A1 (en) | 2001-11-29 | 2003-06-12 | Bosch Gmbh Robert | Sterilization tunnel for pharmaceutical containers |
CN101012959B (en) * | 2007-02-02 | 2011-01-19 | 天津龙川精工洁净技术发展有限公司 | Heating box dissolving crystallized mannitol |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1248234B (en) * | 1959-08-31 | 1967-08-24 | Chirana Praha N P | Automatic hot air sterilizer |
US3227207A (en) * | 1963-03-04 | 1966-01-04 | Alan L Litman | Thermal environmental control apparatus |
DE2631352C3 (en) * | 1976-07-13 | 1983-02-17 | Bayer Ag, 5090 Leverkusen | Process for low-particle sterilization |
DE3321195A1 (en) * | 1983-06-11 | 1984-12-13 | Bayer Ag, 5090 Leverkusen | Device for the dry heat sterilisation of glass vessels for medicaments for parenteral use |
DD216858A1 (en) * | 1983-09-01 | 1985-01-02 | Komb Medizin U Labortechnik Ve | DEVICE FOR STERILIZING OBJECTS BY WEATHER |
-
1985
- 1985-02-22 DE DE19853506788 patent/DE3506788A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT393330B (en) * | 1986-01-03 | 1991-09-25 | Vaillant Gmbh | DEVICE FOR REGULATING THE PROPORTIONAL SUPPLY OF VARIOUS TEMPERATURE HOT WATER FLOW RATES |
Also Published As
Publication number | Publication date |
---|---|
DE3506788A1 (en) | 1985-07-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
8181 | Inventor (new situation) |
Free format text: SIEDLER, HORST, 1000 BERLIN, DE |
|
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |