DE29509934U1 - Edge spray nozzle for paper machines, designed as a single or double jet nozzle, with slide-on sleeve for air supply - Google Patents
Edge spray nozzle for paper machines, designed as a single or double jet nozzle, with slide-on sleeve for air supplyInfo
- Publication number
- DE29509934U1 DE29509934U1 DE29509934U DE29509934U DE29509934U1 DE 29509934 U1 DE29509934 U1 DE 29509934U1 DE 29509934 U DE29509934 U DE 29509934U DE 29509934 U DE29509934 U DE 29509934U DE 29509934 U1 DE29509934 U1 DE 29509934U1
- Authority
- DE
- Germany
- Prior art keywords
- nozzle
- designed
- double jet
- ruby
- sleeve
- 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
Links
- 239000007921 spray Substances 0.000 title claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000010979 ruby Substances 0.000 claims description 5
- 229910001750 ruby Inorganic materials 0.000 claims description 5
- 229910052594 sapphire Inorganic materials 0.000 claims description 4
- 239000010980 sapphire Substances 0.000 claims description 4
- 238000011109 contamination Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 2
- 229910001220 stainless steel Inorganic materials 0.000 claims 2
- 239000010935 stainless steel Substances 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 1
- 210000002445 nipple Anatomy 0.000 claims 1
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/34—Construction or arrangement of spraying pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
Landscapes
- Nozzles (AREA)
Description
&bgr; &egr; s c &eegr; R &egr; &igr; &bgr; &ugr; &ngr; jg ::*:::.: : Ms 0.6-95 &bgr;ε sc &eegr; R ε &igr;&bgr;&ugr;&ngr; jg ::*:::.: : Ms 0.6-95
RANDSPRITZDÜSE FÜR PAPIERMASCHINENEDGE SPRAY NOZZLE FOR PAPER MACHINES
ausgeführt als Einzelstrahl- oder Doppelstrahl-Düse, mit Halter und Filter, ebenso mit der Möglichkeit der Verwendung eines Halters mit aufgesetzter Hülse für Druckluft-Zufuhr.designed as a single jet or double jet nozzle, with holder and filter, also with the option of using a holder with attached sleeve for compressed air supply.
Bisher verwendete Randspritzdüsen geben einen oder zwei Wasserstrahle ab, die deutlich turbulent sind, d.h. die sich am Austritt aus der Düse oder ganz kurz danach bereits in Tropfen auflösen. Dadurch entstehen Probleme wie unsauberer Papierbahnrand, Wiedervergautschen der Bahn auf der Saugzone der Siebsaugwalze oder bei Berührung mit dem Abnahmefilz, weiter Verunreinigung der Maschine durch von der Düse erzeugten Nebel d.h. Faser-Wasser-Luftschwaden. Die genannten Probleme haben Betriebsstörungen zur Folge, z.B. Abriß der Papierbahn.Edge spray nozzles used to date emit one or two water jets that are clearly turbulent, i.e. they dissolve into drops as they exit the nozzle or very shortly afterwards. This causes problems such as unclean paper web edges, re-couching of the web on the suction zone of the screen suction roll or when it comes into contact with the removal felt, and further contamination of the machine by mist generated by the nozzle, i.e. fiber-water-air clouds. The problems mentioned result in operational disruptions, e.g. tearing of the paper web.
Siehe Fotos 1.1 und 1.2 (herkömmliche Doppelstrahldüse) Fotos 2.1 und 2.2 (Doppelstrahldüse entsprechend der Anmeldung)See photos 1.1 and 1.2 (conventional double jet nozzle) Photos 2.1 and 2.2 (double jet nozzle according to the application)
Die bisher eingesetzten Düsen können Störungen hervorrufen, weil sich an ihrer Vorderpartie Stoff ansammelt, der den austretenden Wasserstrahl unterbrechen kann, oder der auf das laufende Sieb tropfen kann.The nozzles used to date can cause problems because material accumulates on their front part, which can interrupt the outgoing water jet or drip onto the running screen.
Die angemeldete Düsenart besitzt aufgrund ihrer Bauweise die Eigenschaft, einen bzw. zwei vollständig laminare Wasserstrahle abzugeben, die bei den an Papiermaschinen üblichen Wasserdrücken von 15 bis 20 bar erst in einem Abstand von 150 bis 250 mm nach dem Austritt aus der Düsenöffnung in Tropfenbildung übergehen. Dadurch wird ein sehr gleichmäßiger Schnitt der Papierbahn und ein sehr sauberes Arbeiten erzielt.Due to its design, the type of nozzle registered has the property of emitting one or two completely laminar water jets, which, at the water pressures of 15 to 20 bar that are common on paper machines, only start to form droplets at a distance of 150 to 250 mm after exiting the nozzle opening. This results in a very even cut of the paper web and very clean work.
Erreicht wird dies durch in die Düsenkörper mit einer Präzisionsdichtung eingebaute Rubin-Monokristalle, welche biplan mit Höchstpräzision beschliffen sind, und die einen zylindrischen Kanal besitzen, welcher ebenso mit Höchstpräzision ausgeschliffen ist und völlig regelmäßige, ausbruchfreie und scharfkantige Ein- und Ausbohrungen besitzt. Die Rauhtiefe bzw. Toleranz liegt niedriger als 1 pm. Es können anstelle von Rubinen auch Saphire verwendet werden.This is achieved by ruby monocrystals built into the nozzle bodies with a precision seal, which are biplane ground with the highest precision and have a cylindrical channel, which is also ground with the highest precision and has completely regular, break-free and sharp-edged inlets and outlets. The surface roughness or tolerance is less than 1 pm. Sapphires can also be used instead of rubies.
Durch die Verwendung solcher Rubine oder Saphire besitzen die Düsen aufgrund der Materialeigenschaften hinsichtlich des Abriebverhaltens eine Standzeit, die 5 bis 10 mal größer ist, als diejenige der bisher verwendeten Düsen.By using such rubies or sapphires, the nozzles have a service life that is 5 to 10 times longer than that of the nozzles used previously due to the material properties with regard to abrasion behavior.
Der Düsenhalter ist mit einer aufgeschobenen Hülse ausgeführt, die so gestaltet ist, daß ein Druckluftschlauch angeschlossen werden kann, durch den geregelt Luft zugeführt wird. Die Luft tritt als schlauchförmiger Strom koaxial zur Hauptachse der Düse aus und bewirkt, daß die vordere Partie der Düse frei von Ablagerungen bleibt.The nozzle holder is designed with a sleeve that is pushed on, which is designed so that a compressed air hose can be connected, through which air is supplied in a controlled manner. The air exits as a hose-shaped stream coaxial with the main axis of the nozzle and ensures that the front part of the nozzle remains free of deposits.
Beim Einsatz der vorstehend beschriebenen Düsen wird eine Verringerung der Betriebsstörungen der Papiermaschine, die typisch von Randspritzdüsen hervorgerufen werden, beobachtet.When using the nozzles described above, a reduction in the operational disruptions of the paper machine, which are typically caused by edge spray nozzles, is observed.
22.06.95 Hans J. Struck22.06.95 Hans J. Struck
ERLÄUTERUNGEN ZUR ZEICHNUNG "RANDSPRltZDÜSE"EXPLANATIONS TO THE DRAWING "EDGE SPRAY NOZZLE"
A DüsenkörperA nozzle body
B Düseneinsatz mit Dichtung und Rubin oder SaphirB Nozzle insert with seal and ruby or sapphire
C FilterC-Filters
D FilterhalterD Filter holder
E HülsenhalterE Shell holder
F HülseF sleeve
G LuftanschlußG Air connection
H LuftaustrittH Air outlet
X WasserstrahlX Water jet
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29509934U DE29509934U1 (en) | 1995-06-22 | 1995-06-22 | Edge spray nozzle for paper machines, designed as a single or double jet nozzle, with slide-on sleeve for air supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29509934U DE29509934U1 (en) | 1995-06-22 | 1995-06-22 | Edge spray nozzle for paper machines, designed as a single or double jet nozzle, with slide-on sleeve for air supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29509934U1 true DE29509934U1 (en) | 1996-10-24 |
Family
ID=8009466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29509934U Expired - Lifetime DE29509934U1 (en) | 1995-06-22 | 1995-06-22 | Edge spray nozzle for paper machines, designed as a single or double jet nozzle, with slide-on sleeve for air supply |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29509934U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2383046A1 (en) * | 2010-04-30 | 2011-11-02 | Papiermaschinen-Systemtechnik GmbH | Nozzle device |
| EP2383047A1 (en) * | 2010-04-30 | 2011-11-02 | Papiermaschinen-Systemtechnik GmbH | Nozzle device |
-
1995
- 1995-06-22 DE DE29509934U patent/DE29509934U1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2383046A1 (en) * | 2010-04-30 | 2011-11-02 | Papiermaschinen-Systemtechnik GmbH | Nozzle device |
| EP2383047A1 (en) * | 2010-04-30 | 2011-11-02 | Papiermaschinen-Systemtechnik GmbH | Nozzle device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19961205 |
|
| R081 | Change of applicant/patentee |
Owner name: STRUCK, HANS-JOACHIM, DE Free format text: FORMER OWNER: STRUCK, HANS-JOACHIM, 77743 NEURIED, DE Effective date: 19990428 |
|
| R156 | Lapse of ip right after 3 years |
Effective date: 19990601 |