JPS555721A - Detecting method for clogging of nozzle - Google Patents

Detecting method for clogging of nozzle

Info

Publication number
JPS555721A
JPS555721A JP7829378A JP7829378A JPS555721A JP S555721 A JPS555721 A JP S555721A JP 7829378 A JP7829378 A JP 7829378A JP 7829378 A JP7829378 A JP 7829378A JP S555721 A JPS555721 A JP S555721A
Authority
JP
Japan
Prior art keywords
pressure
nozzle
water
operator
clogging
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.)
Pending
Application number
JP7829378A
Other languages
Japanese (ja)
Inventor
Seiji Bando
Sadao Ebata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP7829378A priority Critical patent/JPS555721A/en
Publication of JPS555721A publication Critical patent/JPS555721A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter

Landscapes

  • Nozzles (AREA)

Abstract

PURPOSE: To discover the clogging of the nozzle at an early stage, and to dissolve the development of ill-balanced cooling pattern, by detecting the hydraulic pressure and the air pressure of the injector using the pressure gauge, and by detecting the clogging of the nozzle through the fact that above detected pressure difference is to exceed the specified value.
CONSTITUTION: The pressured cooling water 28 is sent from the water feed port 14 through the flow control valve 26, and the compressed air 32 is sent from the air feed port 16 and the small hole 20 through the constant flow device 30, respectively to the injection nozzle 18 of the duplex fluid injector 10, and are injected outward. In this case, the water pressure and air pressure are detected by the pressure signal generators 36, 38, being communicated respectively to the water feed port 14 and air feed port 16, within the control circuit; and then, the pressure signal is converted into the voltage signal and is inputted to the operator 40. Regarding the water pressure P1 and air pressure P2, the operator 40 operates the formula (P2-P1)/P2; and when the result of this operation exceeds the set point, the operator 40 sents a signal to the alarm 42. This operator 40 is set so as to produce the signal by judging the clogging of nozzle to an extent almost impossible to continue ordinary normal operation, when the value of formula exceeds 0.1, that is, the pressure difference exceeds 10% of the water pressure.
COPYRIGHT: (C)1980,JPO&Japio
JP7829378A 1978-06-27 1978-06-27 Detecting method for clogging of nozzle Pending JPS555721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7829378A JPS555721A (en) 1978-06-27 1978-06-27 Detecting method for clogging of nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7829378A JPS555721A (en) 1978-06-27 1978-06-27 Detecting method for clogging of nozzle

Publications (1)

Publication Number Publication Date
JPS555721A true JPS555721A (en) 1980-01-16

Family

ID=13657880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7829378A Pending JPS555721A (en) 1978-06-27 1978-06-27 Detecting method for clogging of nozzle

Country Status (1)

Country Link
JP (1) JPS555721A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05267516A (en) * 1992-03-17 1993-10-15 Toyo Sangyo Kk Lead pin for diode and manufacture thereof
JPH05345738A (en) * 1983-12-21 1993-12-27 Fidia Spa Halogenoresorcin derivative
CN102423738A (en) * 2011-11-30 2012-04-25 清华大学 Spray device
JP2017029904A (en) * 2015-07-30 2017-02-09 旭有機材株式会社 On-site spray type foaming machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05345738A (en) * 1983-12-21 1993-12-27 Fidia Spa Halogenoresorcin derivative
JPH05267516A (en) * 1992-03-17 1993-10-15 Toyo Sangyo Kk Lead pin for diode and manufacture thereof
CN102423738A (en) * 2011-11-30 2012-04-25 清华大学 Spray device
JP2017029904A (en) * 2015-07-30 2017-02-09 旭有機材株式会社 On-site spray type foaming machine

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