US2063166A - Device for boiling sugar juices to crystals - Google Patents

Device for boiling sugar juices to crystals Download PDF

Info

Publication number
US2063166A
US2063166A US694841A US69484133A US2063166A US 2063166 A US2063166 A US 2063166A US 694841 A US694841 A US 694841A US 69484133 A US69484133 A US 69484133A US 2063166 A US2063166 A US 2063166A
Authority
US
United States
Prior art keywords
steam
pressure
boiler
vessel
vacuum
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
Application number
US694841A
Other languages
English (en)
Inventor
Jansse Hermanus Andreus Ditmar
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2063166A publication Critical patent/US2063166A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B25/00—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices
    • C13B25/06—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices combined with measuring instruments for effecting control of the process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0082—Regulation; Control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/14—Beverages
    • G01N33/143—Beverages containing sugar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00026—Controlling or regulating the heat exchange system
    • B01J2208/00035—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2208/0007—Pressure measurement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00026—Controlling or regulating the heat exchange system
    • B01J2208/00035—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2208/00088—Flow rate measurement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
    • B01J2208/00256—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles in a heat exchanger for the heat exchange medium separate from the reactor

Definitions

  • the boiling process is controlled and guided by indications obtained during the process concerning the transmission of heat between a metal vessel placed in the evaporating boiler, through which vessel steam is conducted, and the mother-liquor of the boiling mass.
  • Figure 1 is a vertical section of the lower portion of an evaporating boiler fitted with the device of my invention.
  • Figure 2 is a sketch of a recording pressure device adapted to be used in my invention.
  • Figure 3 is likewise a sketch of a recording temperature-pressure device which may be substituted for the pressure device of Fig. 2.
  • a metal vessel (condensation vessel) 8 provided with a. steam inlet pipe 1 and an outlet for the water of condensation leading to a steam trap 9.
  • a common valve or cook I for cutting off the steam supply, for instance for the 50 purpose of repair or control of other parts of the system;
  • a reducing valve 2 for the purpose of reducing the steam supplied to a fairly constant pressure
  • a branch pipe with a controlling valve or throttle valve 5 for the purpose of conducting a desired part of the reduced pressure steam either to an area of constant lower pressure as, for instance, the outer air or else to a space containing steam of a variable lower. pressure as for instance the exhaust steam pipes.
  • this branch pipe is to be able to adapt the quantity of steam passing the reducing valve 2, to the capacity at which the apparatus is working at its best.
  • a common valve or cook 3 for the purpose of shutting off the steam of the condensation vessel 8 when the reducing apparatus remains operative;
  • a recording pressure gauge or a common one consequently approximately recording the pressure in the vessel 8 during. the boiling proc- After the operator las drawn as much juice or "masse cui into the evaporating. boiler as is necessary for the boiling in question and the condensation vessel 8 consequently liesbelow the level of liquid, the admission-valve 3 is opened.
  • the valve l is always open; it is only closed for repair or control of the reducing valve 2 and for changing the throttle valve 5 if needed.
  • the pressure which will occur in the condensation vessel 8 depends on the degree of facility with which the steam condenses against the wall of the vessel, that is to say ontheifacility with which the boiling mass absorbs" the condensation heat. There is, however, an exact relation between this facility and the concentration of the boiling, as the viscosity and the raising of the boiling point depend on this.
  • the pressure on the pressure gauge 6 constitutes an indication of the condition of the boiling at any moment during the boiling process, so that the drawing in of juice or syrup and the supply of steam to the coil pipes may be regulated according to the indications of the pressure gauge.
  • thermometer As shown in Figure 3, either recording or not may be provided in a ,suitable place.
  • Figure 3 shows a vacuum Bourdon tube I 2' and a helical thermometer II with its extension tube 2
  • the tips of the Bourdon tube and of the helix of the thermometer are connected by a system of levers in all respects identical with those in Figure 2 and designated by the same reference characters, primed. as the lever-system of Figure 2.
  • the Bourdon tube is connected to the vacuum space of the boiler and the bulb of the thermometer inserted in a suitable place where it will measure the temperature in vessel I, and can be so used because of the equivalence between the pressure and temperature of confined steam.
  • the invention further relates to a device for compensating the action of variations in the vac- ;uum in the evaporating boiler on the indications concerning the transmission of heat, since a va-,
  • Fig. 2 exclusively as an example, represents an embodiment of the recording pressure gauge.
  • I I is a pressure spring connected to the steam inlet pipe to the metal vessel. It is a vacuum spring connected to the evaporating boiler.
  • pressure spring II is hingedly connected at I! by means of a rod M, with the pointer ll.
  • the vacuum spring I2 is hingedly and adjustably connected at 20 by means of the rods II, It and H to the pointer ll.
  • the rod Ii has a fixed fulcrum it.
  • the rod l1 the length of which can be adjusted, is-hingedly and adiustably connected to the rod IS.
  • the pointer I3 is adapted to travel over a graduated rotating drum in order to record pressures.
  • the point I! When connecting the vacuum the point I! will act as a relative fixed fulcrum and the pointer will travel upward along the scale; one may, for instance, set the recording gauge so that for a vacuum of 76 centimetres the pointer will be at the point 50 on the scale.
  • the point 20 When connecting the steam pressure the point 20 will act as a relative fixed fulcrum and the pointer will likewise travel upwards along the scale.
  • the recording pressure gauge will be set in such a way that at 2.8 atm. the pointer also will be at the point 50 on the scale. At 76 centimetres of steam pressure and 2.8 atm. the pointer will therefore be at 100. When the apparatus is in operation and the vacuum due to certain factors, is raised by one centimetre, the steam pressure will be lowered by 0.037 atm.
  • thermometer instead of a recording steam pressure gauge
  • a controlling device which comprises a metallic vessel located within said boiler and beneath the lowest surface liquid level therein and having a steam inlet pipe and a steam outlet pipe the latter being closed by a steam trap, said inlet pipe embodying a reducing valve for producing constant steam supply pressure,
  • he vessel is a thermometer so located in the sys- 15 tem as to be subjected to the temperature conditions of the said metallic vessel.
  • a controlling device which comprises a metallic vessel located within said boiler and below the lowest liquid level thereof, said vessel having a steam inlet pipe and steam outlet pipe, the latter being closed by a steam trap, said inlet pipe having means establishing a uniform and determined steam supply pressure, and means for providing a constant supply of steam per unit of time, at that pressure, a detector of change of vacuum connected to the vacuum space of the vacuum pan, a detector of change of pres sure connected with the metallic vessel and means for combining the indications of said detectors to indicate variations of the rate of heat transfer between the sugar juice and the steam in the vessel.
  • a controlling device which comprises a metallic vessel located within the boiler and beneath the lowest liquid level thereof, a steam inlet pipe and a steam outlet pipe thereto, the latter closed by a steam trap, said inlet pipe being provided with means establishing a uniform and determined steam supply pressure, and means for providing a constant supply of steam per unit time at that pressure, an indicating device reacting to the vacuum in the boiler and connected with the boiler, a second indicating device reacting to the pressure of steam in the metallic vessel, connected with said metallic vessel, and a pointer so connected to said devices that the movement of the tip of the pointer due to movements of the said indicating device, connected with the metallic vessel, insofar as the said movement is caused by variation of vacuum in the boiler, is compensated by the movement of said pointer due to motion of the said indicating device connected with the boiler caused by variations in vacuum in said boiler.
  • a controlling device which comprises a metallic vessel located within said boiler and beneath the lowest liquid level thereof, a steam inlet pipe and a steam outlet pipe tl" ereto, the latter being closed by a steam trap, said inlet pipe being provided with means providing a uniform and determined steam supply pressure and means for providing a constant supply of steam per unit of time to said vessel at that pressure, a Bourdon tube connected with the vacuum space of said boiler, a thermometer arranged to determine the temperature in the steam vessel and means combining their respective indications to show alteration in the rate of heat exchange between the steam vessel and the vacuum pan.
  • a controlling device which comprises a metallic vessel within the boiler, and beneath the lowest liquid level thereof, steam inlet and steam outlet pipes connected therewith, the latter being closed by a steam trap, and the former having means providing a uniform and determined steam supply pressure, and means for supplying a constant amount of steam per unit of time, a Bourdon tube connected with the metallic vessel, a Bourdon tube connected with-the vacuum space of the boiler, a pointerpivotally connected intermediate its ends to the first named Bourdon tube and, intermediate this connection and its end pivotally and adjustably connected to the second Bourdon tube, the other end being arranged to move over an indicating scale.
  • a controlling device which comprises a metallic vessel located within said boiler and beneath the lowest liquid level thereof, a steam inlet pipe and a steam outlet pipe thereto the latter being closed by a steam trap, said inlet pipe being provided with means providing a uniform and determined steam supply pressure and means for providing a constant supply of steam per unit of time to said vessel at that pressure, a Bourdon tube connected with the vacuum space of said boiler, a thermometer arranged to determine the temperature in the steam vessel and a pointer so connected to said devices that the movement of the tip of the pointer due to the movement of the helix of the thermometer connected with the metallic vessel insofar as the said movement is caused by variation of the vacuum in the boiler is compensated by the movement of said pointer due to motion of the Bourdon tube connected with the boiler caused by variation in vacuum in said boiler.
  • an apparatus for boiling sugar juice to crystallization which comprises a vacuum pan and a controlling device which comprises a metallic vessel'within the boiler, and beneath the lowest liquid level thereof, steam inlet and steam outlet pipes connected therewith, the latter being closed by a steam trap, and the former having means providing a uniform and determined steam supply pressure and means for supplying a constant amount of steam per unit of time, a Bourdon tube connected to said metallic vessel, 9.
  • Bourdon tube connected to the vacuum pan, a pointer pivotally and adjustably connected to the tip of said first Bourdon tube and pivotally and adjustably connected to the tip of said second Bourdon tube, a rotatable cylinder, means for rotating said cylinder, means for attaching a ruled chart thereto, said cylinder being so located with reference to said pointer that its point will trace a line upon said ruled chart, which line is the resultant of the separate movements of said pressure and vacuum Bourdon tubes.
  • a controlling device which comprises a metallic vessel within the boiler, and beneath the lowest liquid level thereof, a steam inlet and a steam outlet pipe connected therewith, the latter being closed by a steam trap, and the former having means providing a uniform and determined steam supply pressure, and means for supplying a constant amount of steam per unit of time, a spiral tube thermometer connected with the metallic vessel, a Bourdon tube connected with the vacuum space of the boiler, a pointer pivotally and adiustably connected to the tip of reference to said pointer that its point will trace the spiral tube 01' the thermometer and pivotaily a line upon said ruled chart, which line is the reand adjustably connected to the tip of the Boursultant of the separate movement or said helical don tube, a rotatable cylinder, means for rotatand Bourdon tube.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
US694841A 1932-11-15 1933-10-23 Device for boiling sugar juices to crystals Expired - Lifetime US2063166A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL63193T 1932-11-15

Publications (1)

Publication Number Publication Date
US2063166A true US2063166A (en) 1936-12-08

Family

ID=19756654

Family Applications (1)

Application Number Title Priority Date Filing Date
US694841A Expired - Lifetime US2063166A (en) 1932-11-15 1933-10-23 Device for boiling sugar juices to crystals

Country Status (3)

Country Link
US (1) US2063166A (fr)
DE (1) DE618675C (fr)
NL (1) NL37776C (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519608A (en) * 1944-07-10 1950-08-22 Bristol Company Control apparatus for evaporators
US2850086A (en) * 1950-03-09 1958-09-02 Blaw Knox Co Density controller for evaporators
US2954821A (en) * 1954-04-23 1960-10-04 Arnold W Baumann Sterile vacuum pan
US3049923A (en) * 1957-12-30 1962-08-21 Palmer Thermometers Inc Recording thermometers
US5834651A (en) * 1995-03-14 1998-11-10 Mija Industries, Inc. Heat treated rapid response pressure gauge spring

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1004110B (de) * 1954-09-11 1957-03-07 Ditmar Zonen N V Kontrollvorrichtung an Siedepfannen, insbesondere zum Verkochen von Zuckersaeften auf Kristall

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519608A (en) * 1944-07-10 1950-08-22 Bristol Company Control apparatus for evaporators
US2850086A (en) * 1950-03-09 1958-09-02 Blaw Knox Co Density controller for evaporators
US2954821A (en) * 1954-04-23 1960-10-04 Arnold W Baumann Sterile vacuum pan
US3049923A (en) * 1957-12-30 1962-08-21 Palmer Thermometers Inc Recording thermometers
US5834651A (en) * 1995-03-14 1998-11-10 Mija Industries, Inc. Heat treated rapid response pressure gauge spring

Also Published As

Publication number Publication date
DE618675C (de) 1935-09-17
NL37776C (fr)

Similar Documents

Publication Publication Date Title
Griffith et al. The role of surface conditions in nucleate boiling
US4044605A (en) Apparatus for measuring fouling on the inside of a heat-exchanger tube
US1971816A (en) Method and apparatus for the control of evaporating processes
US2002101A (en) Method and apparatus for continuously determining vapor pressure
US2063166A (en) Device for boiling sugar juices to crystals
US2355057A (en) Apparatus for deaerating viscose compositions
US2073825A (en) Automatic temperature and pressure control system
US2095282A (en) Capillary viscometer
US2146312A (en) Steam testing method and apparatus
US2337171A (en) Liquid level indicator
US2576496A (en) Method for controlling multipleefect evaporators
US2135512A (en) System of control for evaporating apparatus
US2046583A (en) Fluid treating device
Morrison et al. 413. The measurement of gas solubilities
US2310415A (en) Method of and apparatus for controlling digesters
US2040284A (en) Method and apparatus for measuring and controlling absolute pressure
US1888577A (en) Density measuring apparatus
US3186423A (en) Density control instrument
US2549388A (en) Method and apparatus for effecting self-regulated partial condensation of condensable vapors
US1307601A (en) Appabattts fob testing complex liquids
SU97676A1 (ru) Устройство дл измерени плотности раствора в выпарных аппаратах
US1248698A (en) Automatic indicator for vacuum-pans.
US1410836A (en) Apparatus for measuring or indicating the density of liquids in containers
US2095324A (en) Capillary viscometer
US1589418A (en) Flow-meter test cup