EP1475578A1 - Liquid heating device - Google Patents

Liquid heating device Download PDF

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Publication number
EP1475578A1
EP1475578A1 EP03010188A EP03010188A EP1475578A1 EP 1475578 A1 EP1475578 A1 EP 1475578A1 EP 03010188 A EP03010188 A EP 03010188A EP 03010188 A EP03010188 A EP 03010188A EP 1475578 A1 EP1475578 A1 EP 1475578A1
Authority
EP
European Patent Office
Prior art keywords
liquid
tube
heating tube
heating
pump
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
EP03010188A
Other languages
German (de)
French (fr)
Other versions
EP1475578B1 (en
Inventor
Chuan-Pan Huang
Chen-Lung Huang
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.)
Huang Chen Lung
Original Assignee
Huang Chen Lung
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 Huang Chen Lung filed Critical Huang Chen Lung
Priority to EP20030010188 priority Critical patent/EP1475578B1/en
Priority to DE2003603975 priority patent/DE60303975T2/en
Publication of EP1475578A1 publication Critical patent/EP1475578A1/en
Application granted granted Critical
Publication of EP1475578B1 publication Critical patent/EP1475578B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
    • F24H1/105—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance formed by the tube through which the fluid flows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/282—Methods of steam generation characterised by form of heating method in boilers heated electrically with water or steam circulating in tubes or ducts

Definitions

  • This invention is continued-in-part of serial number 10/157,471 capable to heat up liquid speedily to a proper temperature or to boil it or change it into vapor, and applicable to a drink water dispenser, a heater or any equipment for heating liquid.
  • a common conventional liquid heating device generally includes a cast block 1 made of zinc-aluminum alloy and an electric heating tube 10 and a water conveying tube 11 both contained in the cast block 1. Then the cast block 1 is heated up by the electric heating tube 10, and then the water conveying tube 11 is heated up by the heat of the cast block 1 so that liquid flowing in the water conveying tube 11 is also heated up to become airy vapor.
  • the time required in vaporizing may be 2 - 3 minutes at least or more than ten minutes at latest depending on the capacity of the electric heating tube 10. If liquid in the tube 11 is to be vaporized in two or three minutes, the heating tube should be large enough to heat up swiftly and accordingly use a large amount of electricity. If liquid is to be heated up in 10 - 20 minutes, the heating tube can be small to use small amount of electricity, but it takes time, not convenient to use.
  • the conventional liquid heating device described above uses the electric heating tube 10 for indirectly heating liquid flowing through the water conveying tube 11, having inferior effect in vaporizing due to insufficient heat capacity so that liquid drops may remain at the outlet of the water conveying tube 11, hardly meeting the using standard.
  • the U.S. PAT NO.4,246,871 has a water heater 10 surrounding a chamber 20, which then helically located around an outlet 30 so that the water heater 10 may heat the water in the chamber 20. So it is complicated, attaining its object and effect by processing the chamber 20 to surround the water heater 10.
  • U.S. PAT NO.5,058,194 has a heating tube 14, and an electric resistance 17 wound on the surface of the heating tube 14.
  • the electric resistance 17 produces high temperature to heat the water in the heating tube 14, impossible to produce steam instantly, as it is an indirect heating mode.
  • This invention has been devised to offer a liquid heating device capable to produce vapor quickly, applicable to various industries.
  • the liquid heating device in the invention has the following feature.
  • a preferred embodiment of a liquid heating device in the present invention includes a pump 2, a heating tube 3 and a control system 6 as main components combined together.
  • the pump 2 has an inlet tube 20 fixed on a side of the pump 2 for pumping in liquid in a liquid store tank (not shown), and an outlet tube 21 connected to the heating tube 3.
  • the heating tube 3 is shaped helical, having an inlet end 31 connected with a connect tube 30, and an outlet end 32 passing through a tube clamp 4 consisting of two leading wires 40 as shown in Figs. 3 and 4. Then two electric wires 50, 51 are respectively connected to the connect tube 30 and the tube clamp 4.
  • the control system 6 is used to control electric power to be supplied to the two electric wires 50, 51 to electrify and heat up the heating tube 3 to directly heat up liquid therein quickly to high temperature so as to vaporizing liquid at the outlet end 32.
  • instant electrifying carries out immediate heating to a proper temperature, boiling or vaporizing.
  • the helical heating tube 3 has an advantage that much liquid flows in the helical heating tube 3, the pump 2 produces pressure for pushing forward liquid in the heating tube 3, and vapor produced may be swiftly pushed out of the outlet end 32.
  • liquid of room temperature flows at first in the helical heating tube 3 to keep the liquid in the inlet end 31 at the lowest temperature, increasing swiftly its temperature as it moves forward in the tube 3. Then the liquid may ultimately become vapor or boiled or reach to a proper temperature at the outlet end 32. Therefore, the temperature at the inlet end 31 is maintained low, preventing liquid in the tube 3 from flowing back to the pump 2, and consequently keeping smooth forward flowing of liquid in the heating tube 3.
  • the liquid heating device in the invention does not have problems of drops occurring or of imperfect vaporization.
  • the liquid heating device is applicable to a drinking water dispenser or a water heater or the like, owing to its function of heating liquid swiftly to boil, to vaporize, or to obtain proper temperature, worthy to be utilized in various industries.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Cookers (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

A liquid heating device includes a pump (2) for pumping liquid, and a helical heating tube (3) receiving liquid sent by the pump. The two ends of the helical heating tube (3) are connected with two terminals (50,51) of electric power, and when a control system (6) is started, the helical heating tube (3) is heated up to produce high heat to heat up the liquid therein to a proper temperature, to boil it up or change it into vapor for practical use.

Description

    FIELD OF THE INVENTION
  • This invention is continued-in-part of serial number 10/157,471 capable to heat up liquid speedily to a proper temperature or to boil it or change it into vapor, and applicable to a drink water dispenser, a heater or any equipment for heating liquid.
    • BACKGROUND OF THE INVENTION
  • A common conventional liquid heating device generally includes a cast block 1 made of zinc-aluminum alloy and an electric heating tube 10 and a water conveying tube 11 both contained in the cast block 1. Then the cast block 1 is heated up by the electric heating tube 10, and then the water conveying tube 11 is heated up by the heat of the cast block 1 so that liquid flowing in the water conveying tube 11 is also heated up to become airy vapor. The time required in vaporizing may be 2 - 3 minutes at least or more than ten minutes at latest depending on the capacity of the electric heating tube 10. If liquid in the tube 11 is to be vaporized in two or three minutes, the heating tube should be large enough to heat up swiftly and accordingly use a large amount of electricity. If liquid is to be heated up in 10 - 20 minutes, the heating tube can be small to use small amount of electricity, but it takes time, not convenient to use.
  • The conventional liquid heating device described above uses the electric heating tube 10 for indirectly heating liquid flowing through the water conveying tube 11, having inferior effect in vaporizing due to insufficient heat capacity so that liquid drops may remain at the outlet of the water conveying tube 11, hardly meeting the using standard.
  • The U.S. PAT NO.4,246,871 has a water heater 10 surrounding a chamber 20, which then helically located around an outlet 30 so that the water heater 10 may heat the water in the chamber 20. So it is complicated, attaining its object and effect by processing the chamber 20 to surround the water heater 10.
  • Next, U.S. PAT NO.5,058,194 has a heating tube 14, and an electric resistance 17 wound on the surface of the heating tube 14. The electric resistance 17 produces high temperature to heat the water in the heating tube 14, impossible to produce steam instantly, as it is an indirect heating mode.
    • SUMMARY OF THE INVENTION
  • This invention has been devised to offer a liquid heating device capable to produce vapor quickly, applicable to various industries.
  • The liquid heating device in the invention has the following feature.
  • 1. It includes a pump for pumping liquid into a helical heating tube, which has its two ends connected to two output terminals of an a control system, When the control system is started, the helical heating tube is powered to product high heat to heat up at once the liquid therein to a proper temperature, or boil up or vaporize it by managing the control system.
  • 2. The liquid heating device in the invention utilizes the helical heating tube, with the temperature at the inlet being the lowest and that nearer to the outlet becoming higher and higher so that the liquid pressure at the inlet may not flow back to the pump so as to make the liquid flowing smooth.
    • BRIEF DESCRIPTION OF DRAWINGS
  • Figure 1 is a side view of a conventional liquid heating device;
  • Figure 2 is a perspective view of a liquid heating device in the present invention;
  • Figure 3 is a perspective view of a helical heating tube in the present invention; and,
  • Figure 4 is a perspective view of vapor produced by the helical heating tube in the present invention.
    • DETAILED DESCRIPTION OF THE INVENTION
  • A preferred embodiment of a liquid heating device in the present invention, as shown in Fig. 2, includes a pump 2, a heating tube 3 and a control system 6 as main components combined together.
  • The pump 2 has an inlet tube 20 fixed on a side of the pump 2 for pumping in liquid in a liquid store tank (not shown), and an outlet tube 21 connected to the heating tube 3.
  • The heating tube 3 is shaped helical, having an inlet end 31 connected with a connect tube 30, and an outlet end 32 passing through a tube clamp 4 consisting of two leading wires 40 as shown in Figs. 3 and 4. Then two electric wires 50, 51 are respectively connected to the connect tube 30 and the tube clamp 4.
  • The control system 6 is used to control electric power to be supplied to the two electric wires 50, 51 to electrify and heat up the heating tube 3 to directly heat up liquid therein quickly to high temperature so as to vaporizing liquid at the outlet end 32. In other words, instant electrifying carries out immediate heating to a proper temperature, boiling or vaporizing..
  • The helical heating tube 3 has an advantage that much liquid flows in the helical heating tube 3, the pump 2 produces pressure for pushing forward liquid in the heating tube 3, and vapor produced may be swiftly pushed out of the outlet end 32. On the other hand, liquid of room temperature flows at first in the helical heating tube 3 to keep the liquid in the inlet end 31 at the lowest temperature, increasing swiftly its temperature as it moves forward in the tube 3. Then the liquid may ultimately become vapor or boiled or reach to a proper temperature at the outlet end 32. Therefore, the temperature at the inlet end 31 is maintained low, preventing liquid in the tube 3 from flowing back to the pump 2, and consequently keeping smooth forward flowing of liquid in the heating tube 3. In addition, the liquid heating device in the invention does not have problems of drops occurring or of imperfect vaporization.
  • Therefore, the liquid heating device is applicable to a drinking water dispenser or a water heater or the like, owing to its function of heating liquid swiftly to boil, to vaporize, or to obtain proper temperature, worthy to be utilized in various industries.
  • While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.

Claims (1)

  1. A liquid heating device comprising:
    a pump having an inlet tube fixed on a side for pumping liquid, and an outlet tube connected to a heating tube;
    said heating tube having a connect tube connected to said outlet tube of said pump, said connect tube further connected to an inlet end of said heating tube, said heating tube further having an outlet end passing through a tube clamp consisting of plural leading wires; and,
    said inlet end and said outlet end of said heating tube respectively connected to two output terminals of a control system, said heating tube producing swiftly high heat to make liquid boil or reach a needed temperature or vaporize when powered by said control system, said liquid heated device having effect of immediately vaporizing liquid when powered.
EP20030010188 2003-05-06 2003-05-06 Liquid heating device Expired - Fee Related EP1475578B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20030010188 EP1475578B1 (en) 2003-05-06 2003-05-06 Liquid heating device
DE2003603975 DE60303975T2 (en) 2003-05-06 2003-05-06 liquid heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20030010188 EP1475578B1 (en) 2003-05-06 2003-05-06 Liquid heating device

Publications (2)

Publication Number Publication Date
EP1475578A1 true EP1475578A1 (en) 2004-11-10
EP1475578B1 EP1475578B1 (en) 2006-03-15

Family

ID=32981818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030010188 Expired - Fee Related EP1475578B1 (en) 2003-05-06 2003-05-06 Liquid heating device

Country Status (2)

Country Link
EP (1) EP1475578B1 (en)
DE (1) DE60303975T2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7801424B2 (en) 2006-02-20 2010-09-21 Technical (Hk) Manufacturing Limited Steam generator
WO2017200407A1 (en) * 2016-05-20 2017-11-23 Enbio Technology Spolka Z Ograniczona Odpowiedzialnoscia Method and device for generating flow-through steam
CN115164400A (en) * 2022-08-17 2022-10-11 佛山市小熊厨房电器有限公司 Liquid heating system and heating device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR784400A (en) * 1934-04-10 1935-07-22 Improvements to steam boilers and the like
US5706389A (en) * 1995-03-17 1998-01-06 Dragerwerk Aktiengesellschaft Electrically heated heat exchanger
US5937141A (en) * 1998-02-13 1999-08-10 Swiatosz; Edmund Smoke generator method and apparatus
US6189453B1 (en) * 1999-06-11 2001-02-20 Yu-Chuan Lin Structure of a smoke generator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR784400A (en) * 1934-04-10 1935-07-22 Improvements to steam boilers and the like
US5706389A (en) * 1995-03-17 1998-01-06 Dragerwerk Aktiengesellschaft Electrically heated heat exchanger
US5937141A (en) * 1998-02-13 1999-08-10 Swiatosz; Edmund Smoke generator method and apparatus
US6189453B1 (en) * 1999-06-11 2001-02-20 Yu-Chuan Lin Structure of a smoke generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7801424B2 (en) 2006-02-20 2010-09-21 Technical (Hk) Manufacturing Limited Steam generator
WO2017200407A1 (en) * 2016-05-20 2017-11-23 Enbio Technology Spolka Z Ograniczona Odpowiedzialnoscia Method and device for generating flow-through steam
CN115164400A (en) * 2022-08-17 2022-10-11 佛山市小熊厨房电器有限公司 Liquid heating system and heating device

Also Published As

Publication number Publication date
DE60303975D1 (en) 2006-05-11
EP1475578B1 (en) 2006-03-15
DE60303975T2 (en) 2006-11-23

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