FR2256389A1 - Heat exchanger for cooling the ends of electron beam tubes - using water near the boiling point - Google Patents

Heat exchanger for cooling the ends of electron beam tubes - using water near the boiling point

Info

Publication number
FR2256389A1
FR2256389A1 FR7442630A FR7442630A FR2256389A1 FR 2256389 A1 FR2256389 A1 FR 2256389A1 FR 7442630 A FR7442630 A FR 7442630A FR 7442630 A FR7442630 A FR 7442630A FR 2256389 A1 FR2256389 A1 FR 2256389A1
Authority
FR
France
Prior art keywords
heat exchanger
cooling
electron beam
boiling point
water near
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
Application number
FR7442630A
Other languages
French (fr)
Other versions
FR2256389B3 (en
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of FR2256389A1 publication Critical patent/FR2256389A1/en
Application granted granted Critical
Publication of FR2256389B3 publication Critical patent/FR2256389B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/026—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/24—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
    • F28D2021/0029—Heat sinks

Abstract

A heat exchanger consists of two concentric cylinders with spiral fins extending from the outer surface of the inner cylinder to the inner surface of the outer cylinder forming a number of spiral passages through which the cooling medium (normally deionised water) flows. The flow of water is highly turbulent and scours the steam bubbles formed by boiling on the surface of the inner cylinder, carrying them out of the heat exchanger to a separate cooler. The cooling medium enters the heat exchanger at not less than 5 degrees C below the b.pt. and at least one per cent by volume of the flow is in the form of vapour at the outlet.
FR7442630A 1973-12-26 1974-12-24 Heat exchanger for cooling the ends of electron beam tubes - using water near the boiling point Granted FR2256389A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42815173A 1973-12-26 1973-12-26

Publications (2)

Publication Number Publication Date
FR2256389A1 true FR2256389A1 (en) 1975-07-25
FR2256389B3 FR2256389B3 (en) 1977-01-07

Family

ID=23697751

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7442630A Granted FR2256389A1 (en) 1973-12-26 1974-12-24 Heat exchanger for cooling the ends of electron beam tubes - using water near the boiling point

Country Status (5)

Country Link
JP (1) JPS50100654A (en)
AU (1) AU7636474A (en)
DE (1) DE2459390A1 (en)
FR (1) FR2256389A1 (en)
NL (1) NL7416974A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196706A1 (en) * 1985-03-22 1986-10-08 Koninklijke Philips Electronics N.V. Projection television display tube
EP1525426B1 (en) * 2002-07-26 2011-11-02 Karlsruher Institut für Technologie Microstructured apparatus for heating and atomizing a fluid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57132165U (en) * 1981-02-10 1982-08-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196706A1 (en) * 1985-03-22 1986-10-08 Koninklijke Philips Electronics N.V. Projection television display tube
EP1525426B1 (en) * 2002-07-26 2011-11-02 Karlsruher Institut für Technologie Microstructured apparatus for heating and atomizing a fluid

Also Published As

Publication number Publication date
FR2256389B3 (en) 1977-01-07
JPS50100654A (en) 1975-08-09
DE2459390A1 (en) 1975-07-10
AU7636474A (en) 1976-06-17
NL7416974A (en) 1975-06-30

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Legal Events

Date Code Title Description
ST Notification of lapse