CN1167935C - Heat exchanger for cooking apparatus - Google Patents
Heat exchanger for cooking apparatus Download PDFInfo
- Publication number
- CN1167935C CN1167935C CNB988067471A CN98806747A CN1167935C CN 1167935 C CN1167935 C CN 1167935C CN B988067471 A CNB988067471 A CN B988067471A CN 98806747 A CN98806747 A CN 98806747A CN 1167935 C CN1167935 C CN 1167935C
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- Prior art keywords
- culinary art
- heat exchange
- heat exchanger
- exchange elements
- medium
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
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- 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
- F28D7/024—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 tubes, the coils having a cylindrical configuration
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/60—Heating arrangements wherein the heating current flows through granular powdered or fluid material, e.g. for salt-bath furnace, electrolytic heating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/021—Heaters specially adapted for heating liquids
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Frying-Pans Or Fryers (AREA)
- Cookers (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A heat exchanger (10) for use in cooking applications, comprising a housing (12), a cooking medium chamber (14) in the housing (12) for passage of cooking medium through the housing (12) during the heat exchange process; and a heat exchange element (16). The heat exchange element (16) is formed to define a generally spiral path for cooking medium to pass through the cooking medium chamber (14) during the heat exchange process. Cooking apparatus (100), and methods of operation of cooking apparatus (100) including such heat exchangers (10; 22) are described.
Description
Technical field
The present invention relates to be suitable for heat exchanger, and relate to the catering facility that comprises this kind heat exchanger and the method for the heating of the culinary art medium in the catering facility that contains this kind heat exchanger to the heating of the culinary art medium in the catering facility.
Background technology
The applicant has illustrated a kind of catering facility of frying in shallow oil that sprays in application number is the international patent application of WO 93/24040.In other words, food is cooked with the way that the culinary art MEDIA FLOW of heating fatty this thermo-sensitive material stream particularly oily or that melt sprays.Described culinary art medium is heated by a fluid heater that is positioned at piping network, and described piping network links with the culinary art medium buffer or the storage bin of band injector.Heat and carry out under the situation that does not have air basically, " tubulose " character of heat exchanger makes to mix effectively also heats more even than the heat exchanger that uses in the past.
From prior art, for example, just can recognize that from No. 168359, No. 621821, BP and European patent a kind of its culinary art medium is to be positioned at wherein or to heat to guarantee that at a groove that is called steam-boiler or box-type container oxidizing gas being arranged is that equipment is exploded in the spray of heating under the situation of air apart from its enough near heating element heater.The applicant has been found that a kind of like this heating mechanism is not suitable for the oxidable culinary art medium of temperature-sensitive, bypassing problem of oxidation does not say, it also is difficult for effectively control to heating process, because this kind heating system and the too much situation of over-heating and culinary art oil consumption has also obtained proof.This kind system (it comprises the vat injector thereby is widely used in fast food) in fact widely uses.
The heat exchanger that uses in No. 93/24040, this heat exchanger and the applicant's the International Patent Application WO is compared, latter's heating is carried out in fluid heater, good mixing does not have air substantially, has the advantage that food quality is good and oil consumption is few of production.
Can understand the heat exchanger of some other kind according to following explanation.
WO 86/05578 is a kind of heat exchanger that uses the heat of car engine cooling system to water or its other similar thing heating.In design, the amount of this heat exchanger fluid is less, and temperature is lower, may be suitable for doing the thermal water source of shower.
WO 88/01362 is a kind of a plurality of spirality pipe groups that have, and each pipeline group comprises 10 pipes and freely places counterflow heat exchanger on the support arm of helical configuration.
These two kinds of heat exchangers do not relate to the heating of the culinary art medium in the catering facility, and promptly a kind of handle culinary art medium is heated to 150 ℃ temperature, and more frequent is the heating process of the temperature between 180 to 210 ℃.These two files are not mentioned the culinary art medium yet and are added the specific question of pining for running into.
Summary of the invention
The objective of the invention is provides improved heat exchanger, the method for culinary art medium heating in the catering facility that comprises this kind heat exchanger and this kind catering facility is provided for catering facility.
Another purpose be to the culinary art medium particularly temperature-sensitive culinary art medium (for example oil ﹠ fat) provide the heat exchanger that may use at present more can control the heat-transfer equipment of heating process effectively than the culinary art industry.
For realizing purpose of the present invention, the invention provides a kind of heat exchanger, be used for the heating cooking medium, it comprises with lower member: a shell; One is positioned at the culinary art dielectric chamber that passes through for the culinary art medium within the described shell of being made by the material that described culinary art medium is had inertia; A heat exchange elements, making coil and its outer surface uses culinary art medium inactive material is made, in order to limiting a spiral passage,, it is characterized in that described heat exchange elements makes the Double-spiral electric device for the culinary art medium culinary art dielectric chamber of in heat exchanging process, flowing through.
Double helical heat exchange elements or coil place in the culinary art dielectric chamber, make it with the inwall of described shell between a little gap is arranged and limit the culinary art medium pass cook dielectric chamber road for being spiral passage in general.The meaning of the fluid passage that term used herein " spirality channel " comprises is full of twists and turns, twine and so on can allow and mix to such an extent that well cook medium and closely contact with heat exchange elements.Like this, just can in little volume, obtain efficient hot transmission range, thereby under the situation that does not produce the main space restriction, realize the more effective control of heat exchanging process.
Heating element heater can be resistive type, and is still, important not as its shape for forcing the culinary art medium to pass the full of twists and turns spirality channel of meticulous qualification the character of heat exchange elements.Heating can be with combustion gas or deep fat.
Described heating element heater can be with the pulse current energy supply of the power level that requires, and its pulse width particularly under the situation of having used electric device, is regulated by the control device that monitors the heat exchange operation.Do like this and reduce the dangerous less of culinary art mass of medium.But this mode is higher to temperature-sensitive culinary art medium heating energy efficiency.
Pulse frequency can be selected easily, makes the thermal inertia paired pulses of heat exchange elements adjust.That is to say that the power density on the heat exchange surface of heat exchange elements on the certain power level can not fluctuate and can keep constant substantially.
According to a second aspect of the present invention, a kind of catering facility is provided, comprise a shell and a cooking area, described cooking area is for the culinary art medium is arranged, this culinary art medium is heated to the cooking temp of requirement by the heat-exchange device that comprises a heat exchanger at least, described heat exchanger is used for the heating cooking medium and comprises with lower member: a shell; One is positioned at the culinary art dielectric chamber that passes through for the culinary art medium within the described shell of being made by the material that described culinary art medium is had inertia; A heat exchange elements, making coil and its outer surface uses culinary art medium inactive material is made, in order to limiting a spiral passage,, it is characterized in that described heat exchange elements makes the Double-spiral electric device for the culinary art medium culinary art dielectric chamber of in heat exchanging process, flowing through.
This kind heat exchanger can be used for many injection catering facilities of the applicant's development.Particularly can be used for number of patent application is the injection fryer of WO 93/24040 or the device that is used to be more suitable for family expenses or retail food output arrangement.
This heat exchanger also can be used for the catering facility of other kind, for example vat pot and pressure cooker.Described pot can be the multi-region type.The culinary art medium can be used the heat-exchange device heating that is combined into by a plurality of above-mentioned the sort of heat exchangers easily.Each heat exchanger can use identical or different peak power outputs.Like this, for the culinary art medium temperature of a certain setting, the thermal output of each heat exchanger just can reduce, and this temperature helps the quality of culinary art medium is remained in acceptable level, especially when described culinary art medium be that temperature-sensitive is when oily or fatty.
In the 3rd preferred embodiment of the present invention, the method for the culinary art medium that a kind of heating cooking food uses is provided, comprise: the culinary art dielectric chamber of the culinary art medium being introduced a heat exchanger; Described culinary art medium is flowed being positioned at the spiral passage that formed by the heat exchange elements coil within the described culinary art dielectric chamber; Cook the cooking temp that medium is heated to requirement with heat exchange elements coil handle, wherein, described heat exchanger is used for the heating cooking medium and comprises with lower member: a shell; One is positioned at the culinary art dielectric chamber that passes through for the culinary art medium within the described shell of being made by the material that described culinary art medium is had inertia; A heat exchange elements, making coil and its outer surface uses culinary art medium inactive material is made, in order to limiting a spiral passage,, it is characterized in that described heat exchange elements makes the Double-spiral electric device for the culinary art medium culinary art dielectric chamber of in heat exchanging process, flowing through.
Convenient and advantageously heating element heater is with the pulse current energy supply, pulse width is controllably regulated.This kind pulse width modulation can make thermal media heat under the situation of the danger that does not reduce quality.
Although the heat exchanging process of imagination be a heating process often, allow the culinary art medium be heated to a certain cooking temp before being positioned at the indoor food of culinary art that spray complains and quarrel loudly being sprayed onto, but equally also can being used for convection cell, heat exchanger lowers the temperature.
Advantageously, under the situation to the culinary art medium heating of spraying fried equipment, heat exchanging process carries out under the conditions of air not having substantially, because not like this, may produce adverse effect to the food of culinary art medium and production.
The method of operating of heat exchanger, catering facility and heat exchanger more can be effectively to the heating of culinary art medium than the method for the prior art of explanation here, particularly cooks medium when being thermo-sensitive material, and is all the more so.
Description of drawings
Reading the explanation of following preferred embodiment with reference to accompanying drawing will understand the present invention more fully, in the accompanying drawing:
Fig. 1 is the perspective view that the part of heat exchanger is according to a preferred embodiment of the present invention cutd open;
Fig. 2 is the cross-sectional side view according to the heat exchanger of preferred embodiment shown in Figure 1;
Fig. 3 is the front view (showing its inside) that may use the catering facility of heat exchanger of the present invention therein;
Fig. 4 is the side view according to the heat exchange elements of the use of the heat exchanger shown in Fig. 1-3;
Fig. 5 is the cross-sectional view of Fig. 1,2 and 4 heat exchange elements.
Fig. 6 shows the chart of Fig. 4 according to the pulse width modulation control of heat exchange elements of the present invention;
Fig. 7 shows that (a) power level is the energy supply of heat exchange elements among 50% o'clock Fig. 4 and Fig. 5, (b) power density in the insulator of described element, (c) chart of the situations such as power density on heat exchange elements surface.
The specific embodiment
Referring now to Fig. 1 and Fig. 2,, shown a heat exchanger 10 among the figure, it comprises: one is basic is columnar shell 12; One is positioned at shell 12, is used for the culinary art dielectric chamber 14 that passes through at heat exchanging process culinary art medium; With one be used for limiting become basically spiral fluid course for the culinary art medium in heat exchanging process, pass fluid media (medium) chamber 14 heat exchange elements 16.Each parts all will be considered the utilization of heat exchanger, uses the material manufacturing of suitable function separately and environment.Therefore, the shell 12 of heat exchanger 10 can be with stainless steel or to the culinary art medium that carries out heat exchange to be certain material making of inertia.Heat exchange elements 16 can use the nickel alloy such as inconel to make.See also such as outstanding chemical engineers handbooks such as Perry for further specifying of this type of alloy.
In the illustrated embodiment, heat exchange elements 16 is made the helix tube 16a that spiral coil promptly has multiturn coil, place in the culinary art dielectric chamber 14, thereby the inlet 20 of culinary art medium by heat exchanger 10 bottoms enters culinary art medium upstream chamber 21, be that to be directed flowing through by the mouth that the gap between the coil 16b of adjacent fluid upstream chamber 21 forms be spiral fluid passage substantially just as shown, the volume that this passage has with culinary art dielectric chamber 14 can provide the benefit of bigger heat transfer surface area comparatively speaking, and can guarantee that fluid stirs and close evenly and homogeneous heating.
The heat exchange elements 16 that is shown in easily in Fig. 4 is made the bifilar helix cast, thereby can make electric connection at an end of heat exchanger 10.The selection of spacing 17 sizes of each circle 16a of coil is in order to obtain the desirable cross-sectional area of desirable heat transfer path length and culinary art media flow passage in heat exchanger 10.Preferably being chosen as of this spacing is not less than, preferably greater than the pipe diameter of heating element heater 16.Spacing can be positive also can be oblique, oblique can obtain bigger heat transfer area in the certain-length of culinary art dielectric chamber 14.
The culinary art medium passes the mouth that contiguous culinary art medium is exported the interval formation between the two circle coil 16c of chamber 70 at the end of heat transfer path, and the outlet 80 on the described output chamber 70 allows the culinary art medium enter the cooking area of the device, particularly catering facility of downstream process.Outlet 80 will place the extreme higher position of chamber 70 and heat exchanger 10 so that build-up of air not in it.Can consider to use vent valve, still, because the amount of dissolved air can change with temperature in the culinary art medium, it may be unacceptable using the way of vent valve, because the formation of air separation in heat exchanger and air pocket may make air pocket overheated.In order to obtain this flow channel, can be easily heat exchange elements 16 be wrapped in around the lining 40 of the shell 12 that is positioned at heat exchanger 10 this shell and lining 40 delimit chamber 14.Lining 40 and shell 12 form one together and are columnar structure substantially, between the inwall 12a of shell and heat exchange elements 16, there are enough gap heat supply exchange components to slip into desired location in the shell 12, and don't are enough to damage the desirable basic spiral flow channel that is.Lining 40 can be suitable material metal, pottery or other ability heat exchanger 10 high temperature that produces when turning round as heating element.
Lining 40 structurally is a metal cylinder rather than solid, because can provide because the too high thermal inertia that the metallic object heating causes for heat exchanger 10 like this.Lining 40 has a chamber 41a, thereby this chamber follows the exterior of heat exchanger 10 to allow the gas expansion be safe from danger by the air-breather of managing 41 forms.If lining 40 breaks, seepage, can observe or detect the seepage of culinary art medium.If use water as the culinary art medium, polluting may special hazard.
In this respect, it also is desirable that heat exchange elements 16 is done following design, if make that heat exchanger 10 is an electric heating, an end of the input of electricity, the mounting flange that output 90 is positioned at heat exchange elements is 10 same end 10a of heat exchanger.Do like this and reduced the step that the operator need do, simplified assembling, the dismounting of heat exchanger.In this case, heat exchange elements 16 adopts the double-spiral structure advantageous particularly, although single-screw also can use.
At heat exchanger 10 is under the situation of electric heating, and heat exchange elements 16 has an electrical conductivity component 16a, and it usually is the resistance wire 16b that passes whole screw mechanism.Be surrounded by the insulating barrier 16c that the material that it is good that one deck is conducted heat by the electric insulation such as magnesia is made in resistance wire outside, in illustrated embodiment, also have the shell 16d that forms by inconel and so on nickel alloy.Its cross-sectional view is shown among Fig. 5.This material must be to the culinary art medium without any significant reaction.
Though heat exchange coil 16 can be electric heating, the combustion gas heating or other type, for example, coil can be with the different hot fluids that are loaded with of heat exchanger designs, preferably at this moment use resistor-type element 16, wherein make electric current be enough to provide required heat input for application by the heat of the resistance material generation of suitable length.
The thermal output of element 16 is subjected to the influence of many parameters, can not determine generally, and will consider above-mentioned factor in concrete culinary art utilization and select that these factors have the character of cooking equipment, the amount of culinary art medium, the temperature that the heating of culinary art medium will reach.Spray in the applicant's exploitation is fried in shallow oil in the class cookery, and this temperature of culinary art medium usually is from 180 to 210 degrees centigrade, although the amount of culinary art medium, according to the requirement of concrete culinary art utilization, between several liters of per second and per second tens even a few hectolitre.
The heat exchange elements heat supply is by micro-information processing controller 100 controls according to culinary art utilization programming.Controller 100 can comprise the illustrated figure user interface of PO 8943 " controller " of application on September 2nd, 1997, and the content combination of this document as a reference.Under the culinary art situation such as spray is fried in shallow oil, the thermal output of heat exchange elements 16 can be controlled according to the temperature that the culinary art medium leaves heat exchanger 10.This temperature is with suitable temperature sensor, the preferably temperature sensor measurement of negative tempperature coefficient thermistor type.The control of heat exchanger 16 also can be the thermal output that keeps specific in specific time span, is that specific food or all food keep specific thermal output, or is that parameter provides specific output temperature with time.Also can be with other control program.
The culinary art medium of heating or lowering the temperature enters the shell 12 of heat exchanger 10 by the inlet 20 that induction system and heat exchanger 10 are linked up of other shape of linear or design.It is desirable to adopt flexible or quick connector.Using under the situation of spraying decoction, usually the pipelines of following inlet 20 heat exchanger 10 and fuel reserve tank UNICOM to get up are linked together, and the culinary art medium is transported to heat exchanger under the effect of the pump of suitable power.Preferably use centrifugal pump.
Under the situation to the heating of culinary art medium, the culinary art medium preferably filtered before entering the culinary art dielectric chamber 14 of heat exchanger 10 in case the food particulate deposits on heat exchange elements 16 and burns.May also to do like this in other field that the fluid that will heat has solia particle to exist.Should prevent the deposition of this particulate.
As mentioned above, making the heat exchange elements 16 of electricity consumption is easily, therefore needs power supply.Power supply can be exchange or direct current, also will use rectifier if desired, heat exchange elements 16 and other electrically driven (operated) part in the device of use heat exchanger 10 are suitable for controllably being connected in power supply with the known method of electric industry circle by a solid-state relay.Power line should suitably insulate, to reduce the danger of electric aspect.
The purpose that pulse-width is regulated control is that the temperature of the heat exchange surface (being the outer surface of coil 16a) that contact power output with the culinary art medium remains on a certain temperature of heat under can the temperature of serious reduction fluid mass.Therefore, using pulse width modulation is very important for reduce heat as far as possible to the infringement of cooking mass of medium.
Therefore under the situation of using a plurality of fluid heaters, the ideal control form is to make by the essentially identical the sort of form of the power output of each heat exchange elements.Like this, because the thermal characteristics of each heat exchange elements is to select according to top principle, the power density on each heat exchange elements surface of each heat exchanger 10 just all equates.Thereby under the situation of 25% system power output, heat exchange elements 16 surface power densities are 25% of peak power only, scarcely can reach maximum in the process of cooking.Concerning oil culinary art medium, also to hang down.Therefore, the temperature that power density can remain on heat exchange surface is lower than the temperature that the quality of fluid is badly damaged, and the fluid heating relaxes and effectively on this power density level.In the process of cooking, except the heat time heating time before cooking, in fact power density may not reach 100%.
Correspondingly, when heat exchanger 10 became assembly a part of, outlet 80 was suitable for being connected in another heat exchanger with screw thread or other method.If requirement can be installed a pipe and simply the fluid that has heated be delivered to next heat exchanger the assembly from a heat exchanger of assembly.Yet,, might partially or even wholly be transported to another heat exchanger to the culinary art medium that has heated from a heat exchanger in the assembly if in an assembly plural heat exchanger is arranged.Each heat exchanger of forming assembly can serial or parallel connection.
The design of heat exchanger 10 can comprise safety device.Therefore, for example, the culinary art medium temperature of leaving heat exchanger 10 of having read is higher than the such parameter of certain value or firing rate or certain and has exceeded the limit that allows (this may express the fault such as heat exchanger 10 pumping fluids not), can close heat exchanger with the advantageous manner of the device security of the described heat exchanger 10 of a kind of use.
It is more even that heat exchanger 10 of the present invention can realize cooking the interior Temperature Distribution of medium in the above described manner, and by preventing that substantially hot-spot from preventing to descend in the quality that is adding oil under the hot work situation, fat or other temperature-sensitive culinary art medium.In this respect, special problem in the time of noting in groove or box heater or pot the culinary art medium being heated with said the sort of heating in No. 621821, the BP of for example Critall.
At heat exchanger 10 is under the situation of cooler, and heat exchange elements 16 is designed to allow cooling fluid flow through so that absorb the heat of the fluid of the fluid chamber 14 that flows through.Heat exchange elements 16 can be designed as has two kinds of abilities of heating and cooling.
Referring now to Fig. 3,, heat exchanger 10 can be as the heat exchanger 22 in the injection cooking equipment 100 of No. 93/24040, International Patent Application WO, and the content of this document is as reference paper of the present invention.Culinary art medium circulation such as oil is ejected on the food through the injector 60 that is positioned at culinary art 14 tops, chamber then through fluid heater 22 heating, and food is carried on conveyer 90.Injector can be positioned under the conveyer.Part 22 preferably comprises the heater assembly of several heat exchangers 10, and each heater all is a this heat exchanger 10 described herein.This heat exchanger can be called flow-heater.
Two such assemblies that 10 kw of power are all arranged that use each to form by 3 heat exchangers 10, one another sprayed end of for for the top spray, thereby temperature can independently adjust, and it is favourable doing like this.Under considerably less situation, special cooking process may need the assembly of different capacity.
The professional and technical personnel who reads this specification can make various remodeling or modification to heat exchanger of the present invention.This remodeling and modification all belong to scope of the present invention.
Claims (19)
1. a heat exchanger is used for the heating cooking medium, and it comprises with lower member: a shell; One is positioned at the culinary art dielectric chamber that passes through for the culinary art medium within the described shell of being made by the material that described culinary art medium is had inertia; A heat exchange elements, making coil and its outer surface uses culinary art medium inactive material is made, in order to limiting a spiral passage,, it is characterized in that described heat exchange elements makes the Double-spiral electric device for the culinary art medium culinary art dielectric chamber of in heat exchanging process, flowing through.
2. according to the heat exchanger of claim 1, it is characterized in that the pulse current energy supply of described heat exchange elements.
3. according to the heat exchanger of claim 1, it is characterized in that described coil around a lining, this lining limits the culinary art dielectric chamber with described shell, and described lining has the chamber of a band exhaust apparatus can adapt to described indoor gas expansion.
4. according to the heat exchanger of claim 2 or 3, it is characterized in that the thermal inertia paired pulses frequency of described heat exchange elements is adjusted, described frequency is selected to make that there is basicly stable thermal output on the heat exchange elements surface under given input power situation.
5. catering facility, comprise a shell and a cooking area, described cooking area is for the culinary art medium is arranged, this culinary art medium is heated to the cooking temp of requirement by the heat-exchange device that comprises a heat exchanger at least, described heat exchanger is used for the heating cooking medium and comprises with lower member: a shell; One is positioned at the culinary art dielectric chamber that passes through for the culinary art medium within the described shell of being made by the material that described culinary art medium is had inertia; A heat exchange elements, making coil and its outer surface uses culinary art medium inactive material is made, in order to limiting a spiral passage,, it is characterized in that described heat exchange elements makes the Double-spiral electric device for the culinary art medium culinary art dielectric chamber of in heat exchanging process, flowing through.
6. according to the catering facility of claim 5, it is characterized in that the pulse current energy supply of described heat exchange elements.
7. according to the catering facility of claim 5, it is characterized in that described coil around a lining, this lining limits the culinary art dielectric chamber with described shell, and described lining has the chamber of a band exhaust apparatus can adapt to described indoor gas expansion.
8. according to the catering facility of claim 6 or 7, it is characterized in that the thermal inertia paired pulses frequency of described heat exchange elements is adjusted, described frequency is selected to make that there is basicly stable thermal output on the heat exchange elements surface under given input power situation.
9. according to each catering facility among the claim 5-7, it is characterized in that described heat-exchange device comprises a plurality of heat exchangers.
10. according to the catering facility of claim 9, it is characterized in that described heat exchanger all has identical peak power output.
11. the catering facility of claim 9 or 10 is characterized in that described catering facility is a kind of cauldron or sprays deep fryer.
12. the method for the culinary art medium that a heating cooking food is used comprises: the culinary art dielectric chamber of the culinary art medium being introduced a heat exchanger; Described culinary art medium is flowed being positioned at the spiral passage that formed by the heat exchange elements coil within the described culinary art dielectric chamber; Cook the cooking temp that medium is heated to requirement with heat exchange elements coil handle, wherein, described heat exchanger is used for the heating cooking medium and comprises with lower member: a shell; One is positioned at the culinary art dielectric chamber that passes through for the culinary art medium within the described shell of being made by the material that described culinary art medium is had inertia; A heat exchange elements, making coil and its outer surface uses culinary art medium inactive material is made, in order to limiting a spiral passage,, it is characterized in that described heat exchange elements makes the Double-spiral electric device for the culinary art medium culinary art dielectric chamber of in heat exchanging process, flowing through.
13., it is characterized in that the pulse current energy supply of described heat exchange elements according to the method for claim 12.
14. according to the method for claim 12, it is characterized in that described coil around a lining, this lining limits the culinary art dielectric chamber with described shell, described lining has the chamber of a band exhaust apparatus can adapt to described indoor gas expansion.
15. according to the method for claim 13 or 14, it is characterized in that the thermal inertia paired pulses frequency of described heat exchange elements is adjusted, described frequency is selected to make that there is basicly stable thermal output on the heat exchange elements surface under given input power situation.
16. according to each method among the claim 12-14, the heating that it is characterized in that described culinary art medium is not carry out under the situation of the basic not oxidizing gas such as air.
17., it is characterized in that pulse current with the power level that requires and frequency is to described heating element heater energy supply according to the method for claim 12.
18., it is characterized in that described pulse width is by the control device adjusting that monitors the heat exchanger operation according to the method for claim 17.
19., it is characterized in that described pulse width is according to the character control of culinary art medium or the culinary art medium food of cooking according to the method for claim 18.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPO8086 | 1997-07-17 | ||
| AUPO8086A AUPO808697A0 (en) | 1997-07-17 | 1997-07-17 | Heat exchanger for cooking apparatus |
| AUPO8943 | 1997-09-02 | ||
| AUPO8943A AUPO894397A0 (en) | 1997-09-02 | 1997-09-02 | Control unit for cooking apparatus |
| AUPP0482A AUPP048297A0 (en) | 1997-11-21 | 1997-11-21 | Apparatus for cooking dough products |
| AUPP0482 | 1997-11-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1261953A CN1261953A (en) | 2000-08-02 |
| CN1167935C true CN1167935C (en) | 2004-09-22 |
Family
ID=27158027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB988067471A Expired - Fee Related CN1167935C (en) | 1997-07-17 | 1998-07-16 | Heat exchanger for cooking apparatus |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0996846A4 (en) |
| JP (1) | JP4181744B2 (en) |
| KR (1) | KR20010014317A (en) |
| CN (1) | CN1167935C (en) |
| WO (1) | WO1999004210A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233379B (en) * | 2005-07-29 | 2010-09-01 | 林德股份公司 | Coiled heat exchanger having different materials |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009003807U1 (en) * | 2009-03-20 | 2010-08-12 | Voss Automotive Gmbh | Electric heating system for a fluid line system |
| CN101586921B (en) * | 2009-06-26 | 2011-05-04 | 林志辉 | Heat exchanger |
| ITAL20100005A1 (en) * | 2010-08-26 | 2012-02-27 | Nicola Passariello | DEVICE FOR HEAT RECOVERY PRODUCED BY A HEATING SYSTEM AS A BOILER, A STOVE, A CHIMNEY OR THE LIKE. |
| KR101350947B1 (en) * | 2010-09-29 | 2014-01-14 | (주)선우이엔지 | Ice making device |
| EP2795220A2 (en) * | 2011-12-22 | 2014-10-29 | Tetra Laval Holdings & Finance SA | A coil heat exchanger |
| EP2802831A1 (en) * | 2012-01-12 | 2014-11-19 | Econotherm UK Limited | Heat exchanging conduit and heat exchanger |
| FR3090263B1 (en) * | 2018-12-18 | 2023-01-13 | Valeo Systemes Thermiques | Heating body for electric heating device and circulation of a liquid |
| CN110579016A (en) * | 2019-07-31 | 2019-12-17 | 山东碳垣纳米科技有限公司 | Gas heating device and gas heating method |
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| GB621821A (en) | 1946-11-08 | 1949-04-20 | Crittall Kitchen Equipment Com | Improvements in or relating to the cooking of food |
| US3839951A (en) * | 1968-07-30 | 1974-10-08 | Parkson Ind Equipment Co | Apparatus for cooking comestibles |
| DE2629285B2 (en) * | 1976-06-30 | 1979-11-29 | R. & G. Schmoele Metallwerke Gmbh & Co Kg, 5750 Menden | Heat exchanger with an annular space that carries a viscous medium and is axially limited by an end wall |
| IT1175790B (en) | 1984-06-20 | 1987-07-15 | Alfredo Cavalli | FOOD FRYER PARTICULARLY FOR DOMESTIC USE |
| CA1291113C (en) | 1985-03-22 | 1991-10-22 | Keith Stuart Mclaren | Heat exchanger |
| JPH01500685A (en) | 1986-08-21 | 1989-03-09 | バーダー，エミル | Counterflow heat exchanger with spiral tube bundle |
| NZ243797A (en) * | 1991-07-31 | 1994-01-26 | Ronald Albert Pain | Opposed bayonet heat exchanger with spaced baffles: baffles formed by |
| DK0647112T3 (en) | 1992-05-26 | 1998-02-02 | Vos Ind Ltd | Cooking device |
| US5309987A (en) * | 1992-07-21 | 1994-05-10 | Astec | Method and apparatus for heating and cooling food products during processing |
-
1998
- 1998-07-16 EP EP98933354A patent/EP0996846A4/en not_active Withdrawn
- 1998-07-16 WO PCT/AU1998/000552 patent/WO1999004210A1/en not_active Application Discontinuation
- 1998-07-16 CN CNB988067471A patent/CN1167935C/en not_active Expired - Fee Related
- 1998-07-16 JP JP2000503377A patent/JP4181744B2/en not_active Expired - Fee Related
- 1998-07-16 KR KR1019997012459A patent/KR20010014317A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233379B (en) * | 2005-07-29 | 2010-09-01 | 林德股份公司 | Coiled heat exchanger having different materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4181744B2 (en) | 2008-11-19 |
| CN1261953A (en) | 2000-08-02 |
| KR20010014317A (en) | 2001-02-26 |
| EP0996846A4 (en) | 2000-10-11 |
| JP2001510887A (en) | 2001-08-07 |
| EP0996846A1 (en) | 2000-05-03 |
| WO1999004210A1 (en) | 1999-01-28 |
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