US1121969A - Safety device for muffles, cupolas, and other furnaces. - Google Patents

Safety device for muffles, cupolas, and other furnaces. Download PDF

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Publication number
US1121969A
US1121969A US1914829774A US1121969A US 1121969 A US1121969 A US 1121969A US 1914829774 A US1914829774 A US 1914829774A US 1121969 A US1121969 A US 1121969A
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United States
Prior art keywords
valve
blast
safety device
casing
furnaces
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Expired - Lifetime
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Ernst Beling
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Individual
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Priority to US1914829774 priority Critical patent/US1121969A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • F16K15/042—Check valves with guided rigid valve members shaped as balls with a plurality of balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
    • F04B39/1033—Adaptations or arrangements of distribution members the members being disc valves annular disc valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/794—With means for separating solid material from the fluid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8225—Position or extent of motion indicator
    • Y10T137/8242—Electrical

Definitions

  • the object of the present invention is a safety device for furnaces, mufies, or cupolas, of such construction that when the blast in the air duct or pipe is out off, a valve, disk or the like opens, whereby the interior of the muflie is connected to the atmosphere so that the gases formed when turning the last on again are rendered unexplosive.
  • the present invention consists of an adj ustable valve which automatically opens when the blast is out OE, and only automatically closes when the blast has reached a given pressure. VJ hen the blast is turned on again and as long as the valve remains open, the blast blows the explosive mixture of gases into the atmosphere. To accomplish this it is advantageous to fix a disk-valve in the blast pipe, of which the spring is so adjusted that it keeps the valve open till the blast on being turned on reaches a given pressure.
  • FIG. 1 shows the lower part of a oupola with a safety valve connected to the blast-pipe according to the present invention.
  • the safety device consists of a cast-iron cylinder a with a connection 2' and an upper perforated dome Z) and lower perforated dome c.
  • the cylinder in its upper part is provided with the safety valve cl and in its lower part with the air inlet valve 6.
  • the cupola valve is connected to the air duct 7 of the cupola g by means of the connection 2' to the air duct it.
  • the inlet valve 6 is kept open by means of a spring when the blast is off and automatically closes when the pressure in the blast pipe has reached a given pressure on turning on the blast.
  • the spring is is adjustable so that it can be set to any desired pressure.
  • the purpose of the air inlet valve is in the first place to prevent cupola explosions, so very frequent in practice.
  • the air-valve e is so constructed that on turning on the blast it blows first into the atmosphere, thus completely clearing the air ducts of any gases. Only after completely clearing the gases and on reaching a certain pressure doesthe air valve close automatically when the blast is then led into the cupola or muflie. Thereby all residual gases remaining in the air ducts are rendered unexplosive. It is only after exceeding the minimum pressure that the air inlet valve 6 closes automatically.
  • the safety valve (Z is for the purpose of aifording an escape of any excess of pressure caused by the clogging up or clinkering of the perforations, thus protecting the blast and its gear. Furthermore, on the top of the safety valve (Z is contact device, for ringing an alarm on exceeding the normal pressure.
  • the contact device consists as is shown in Fig. 1 of a lever or arm Z which is fixed to the cap m of ti e dome 6.
  • a lever or arm Z which is fixed to the cap m of ti e dome 6.
  • a safety device for furnaces comprising a casing adapted to communicate with atmosphere and iaving a valve seat therein, a valve movable in a rectilinear path in said casing and tending to seat upon prevalence of a predetermined pressure within said casing, and cushion means to resist the seating tendency of the valve.
  • a safety device for the purnose specified embodying a casing comprising two valves, valve seats adjacent each of the end portions of said casing, a valve operatively related to each seat, one of said valves being adapted to be unseated by excess pressure Within the casing and means whereby the other valve is held from its seat until a predetermined pressure prevails Within said casing.
  • a safety device for the purpose specified embodying a casing having a portion thereof perforated, a valve within said casing interposed between the perforated and intact -parts of the casing, and adjustable spring means for holding said valve from its seat until a predetermined pressure prevails Within the intact part of said casing.
  • a safety device for the purpose specified embodying a casing having an intermediate intact portion and oppositely disposed perforated end portions, a valve seat adjacent each of said end portions, a valve operatively related to each seat, one of said valves being adapted to be unseated by excess pressure Within the intact portion of said casing, and means whereby the other valve is held from its seat until a predetermined pressure prevails Within said intact portion.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Description

E. BEIJING.
SAFETY DEVICE FOR MUPFLES, CUPOLAS, AND OTHER FURNACES.
APPLICATION TILED APR, 1014.
1 1 21 ,969, Patented Dec. 22. 1914.
WW 4 3 liagalm ERNST BELING, O1? VIENNA, AUST;
SAFETY DEVICE F63 MUFFLES, AND
Specification of Letters Eatent.
Dec. 22, 1914.
Application filed April 6, 1914. Serial No. 829,772t.
To (ZZZ whom it may concern Be it known that I, ERNST BELING, engineer, subject of the Emperor of Austria- Hungary, residing at Vienna, Austria-Hungary, have invented certain new and useful Improvements in Safety Devices for h luifles, Cupolas, and oth r Furnaces, of which the following is a specification.
The object of the present invention is a safety device for furnaces, mufies, or cupolas, of such construction that when the blast in the air duct or pipe is out off, a valve, disk or the like opens, whereby the interior of the muflie is connected to the atmosphere so that the gases formed when turning the last on again are rendered unexplosive.
The present invention consists of an adj ustable valve which automatically opens when the blast is out OE, and only automatically closes when the blast has reached a given pressure. VJ hen the blast is turned on again and as long as the valve remains open, the blast blows the explosive mixture of gases into the atmosphere. To accomplish this it is advantageous to fix a disk-valve in the blast pipe, of which the spring is so adjusted that it keeps the valve open till the blast on being turned on reaches a given pressure.
The invention will be fully described with reference to the accompanying drawings.
Figure 1, enlarged details of valve. Fig. 2 shows the lower part of a oupola with a safety valve connected to the blast-pipe according to the present invention.
The safety device consists of a cast-iron cylinder a with a connection 2' and an upper perforated dome Z) and lower perforated dome c. The cylinder in its upper part is provided with the safety valve cl and in its lower part with the air inlet valve 6. The cupola valve is connected to the air duct 7 of the cupola g by means of the connection 2' to the air duct it. The inlet valve 6 is kept open by means of a spring when the blast is off and automatically closes when the pressure in the blast pipe has reached a given pressure on turning on the blast. The spring is is adjustable so that it can be set to any desired pressure. The purpose of the air inlet valve is in the first place to prevent cupola explosions, so very frequent in practice. These explosions are caused by having the blast stopped during the working for some cause or other, when the carbon-dioxid is reduced to carbon-monoxid, flowing into the ducts. On turning on the blast again oxygen is mixed with the carbon monoxid ith the result that the mixture of gases tires and exploc es. The danger of such explosion is prevented from the start by the use of the cupola valve, since as soon as the blast is turned off, that is, as soon as the pressure in the blast pipe has reached its minimum the alve disk 6 is lifted by the spring is and fresh air enters through the perforations in the dom c, and through the lower valve opening. The fresh supply of air serves the purpose of creating a natural draft, thus preventing the collecting of carbon-monoxid. The air-valve e is so constructed that on turning on the blast it blows first into the atmosphere, thus completely clearing the air ducts of any gases. Only after completely clearing the gases and on reaching a certain pressure doesthe air valve close automatically when the blast is then led into the cupola or muflie. Thereby all residual gases remaining in the air ducts are rendered unexplosive. It is only after exceeding the minimum pressure that the air inlet valve 6 closes automatically.
The safety valve (Z is for the purpose of aifording an escape of any excess of pressure caused by the clogging up or clinkering of the perforations, thus protecting the blast and its gear. Furthermore, on the top of the safety valve (Z is contact device, for ringing an alarm on exceeding the normal pressure.
The contact device consists as is shown in Fig. 1 of a lever or arm Z which is fixed to the cap m of ti e dome 6. Thus on the valve (Z opening the arm or lever is moved by the valve spindle 12, causing the electric contacts 0 and p to meet simultaneously closing the circuit.
Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:
l. A safety device for furnaces, comprising a casing adapted to communicate with atmosphere and iaving a valve seat therein, a valve movable in a rectilinear path in said casing and tending to seat upon prevalence of a predetermined pressure within said casing, and cushion means to resist the seating tendency of the valve.
2. A safety device for the purnose specified, embodying a casing comprising two valves, valve seats adjacent each of the end portions of said casing, a valve operatively related to each seat, one of said valves being adapted to be unseated by excess pressure Within the casing and means whereby the other valve is held from its seat until a predetermined pressure prevails Within said casing.
3. A safety device for the purpose specified, embodying a casing having a portion thereof perforated, a valve within said casing interposed between the perforated and intact -parts of the casing, and adjustable spring means for holding said valve from its seat until a predetermined pressure prevails Within the intact part of said casing.
4. A safety device for the purpose specified, embodying a casing having an intermediate intact portion and oppositely disposed perforated end portions, a valve seat adjacent each of said end portions, a valve operatively related to each seat, one of said valves being adapted to be unseated by excess pressure Within the intact portion of said casing, and means whereby the other valve is held from its seat until a predetermined pressure prevails Within said intact portion.
In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.
ERNST BEIJING.
Witnesses RUDOLF THEUMER, Vroron Bnm.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.
US1914829774 1914-04-06 1914-04-06 Safety device for muffles, cupolas, and other furnaces. Expired - Lifetime US1121969A (en)

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US1914829774 US1121969A (en) 1914-04-06 1914-04-06 Safety device for muffles, cupolas, and other furnaces.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3566907A (en) * 1969-04-25 1971-03-02 Vapor Corp Inline valve position indicator
US4856558A (en) * 1988-08-05 1989-08-15 Gas Research Institute Flapper control valve
US4951706A (en) * 1989-05-26 1990-08-28 Fulton Thermatec Corporation Flapper check valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3566907A (en) * 1969-04-25 1971-03-02 Vapor Corp Inline valve position indicator
US4856558A (en) * 1988-08-05 1989-08-15 Gas Research Institute Flapper control valve
US4951706A (en) * 1989-05-26 1990-08-28 Fulton Thermatec Corporation Flapper check valve

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