CN101375767A - Hot pipe type food steamer and control method thereof - Google Patents
Hot pipe type food steamer and control method thereof Download PDFInfo
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- CN101375767A CN101375767A CNA2007101476602A CN200710147660A CN101375767A CN 101375767 A CN101375767 A CN 101375767A CN A2007101476602 A CNA2007101476602 A CN A2007101476602A CN 200710147660 A CN200710147660 A CN 200710147660A CN 101375767 A CN101375767 A CN 101375767A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/003—Details moisturising of air
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Abstract
The invention relates to a heat pipe-type steamer and a control method thereof. The heat pipe-type steamer comprises a main body, a steam recovery device and a recovered steam heating chamber, which are in the end-to-end connection to form a heat pipe loop using the steam as heat-transfer medium. The recovered steam heating chamber is the heat pipe heat-absorbing end. The steam recovery device is the heat pipe heat-dissipating end. The main body is the heat pipe body. A built-in heat source is arranged inside the recovered steam heating chamber. The steam of the heating chamber is heated by the built-in heat source, then flows through the heat pipe body and reaches the heat pipe heat-dissipating end, and finally flows back to the recovered steam heating chamber and is heated by the built-in heat source again. In the heat pipe loop, the steam is circulated by the convection and upward-floating and the food inside the main body is heated by the circulated steam. In the control method, the cooking process is set in a heat pipe-type steam circulation mode and a steam jet driving mode. When the steam inside the steamer is insufficient, the cooking process is completed in the steam jet driving mode. After the steam is supplemented and the steam temperature reaches the upper limit for cooking, the cooking process is completed in the heat pipe-type steam circulation mode. The food is heated in the two modes alternately.
Description
Technical field
The present invention relates to the culinary art steamed tool, particularly relate to the power-saving technology of culinary art with steamed tool, the present invention utilizes heat pipe (heat-pipe) principle, the steam of food steamer is enclosed in the food steamer of a heat pipe-type structure, utilizes the thermal source that is provided with in the heat pipe-type structure food steamer, the Steam Heating in the food steamer, drive the steam convection current in the food steamer, the steam of circulative convection heats food, and vapor recycle convection current in the food steamer and not overflowing reaches the purpose of energy-saving and water-saving.
Background technology
Steam cooking is that Chinese invent the earliest, can trace back to Yan Di and Huang Di, two legendary rulers of remote antiquity's period, especially bamboo steamer before 4000 or five thousand years, is popular on Chinese's dining table.Modern medicine studies show that steam cooking is best cooking methods, can preserve food nutrition, and does not produce the material that is harmful to health.Though bamboo steamer easily, be popular, when being to use, steam fills the air, and not only has a strong impact on working environment, also is the waste of the energy simultaneously, especially in dry area and high altitude localities, water evaporates is fast, bamboo steamer becomes uneconomical because of the power consumption water consumption.
Steam is very efficient culinary art thermal energy transfer media, and its reason is with aqueous water heating vaporization, needs to absorb a large amount of heat energy (heat of vaporization), steam is because of containing huge heat of vaporization heat energy (latent heat), when steam contacted with food, steam discharged latent heat, and food is heated.Vapor (steam) temperature generally is 100 degrees centigrade, and baking box but needs to keep 150 to 250 degrees centigrade.Steam cooking also has shortcoming, bamboo steamer especially, and a large amount of steam because bamboo steamer always can be overflowed, and steam contains huge latent heat, so the steam that convection current is overflowed except water consumption, in fact also is the waste of the energy.
Food steamer is the convection type cook utensil, though when using bamboo steamer, steam fills the air and has a strong impact on working environment, also waste energy simultaneously, but bamboo steamer but is necessary by the hole effusion steam of Bamboo food steamer lid, and its function is to make steam maintenance convection current from bottom to top, make live steam continue to pour in, food is heated.In fact steamed tool is used in some convection type culinary art, also installs fan especially additional and adds strong convection, shown in U.S. Pat 6267046.But the steam convection current is overflowed, and represents the consumption of water bigger, and in the area of water resource poorness, the barbecue culinary art is just more convenient, more welcome.
Energy-conservation in order to reach, as to economize on water purpose, the steam that bamboo steamer is overflowed by steamer cover must be eliminated, but makes steam keep the function of convection current from bottom to top, but must keep, and makes live steam can continue to pour in, and brings heat energy into, and food is heated.
Proposed by the inventor, name is called the Chinese invention patent application case (accepting) of " energy and water saving steamer ", and as shown in Figure 1, energy and water saving steamer 10 comprises that a food steamer body 1, a vapour-recovery unit 2, a steam spray base 3; Steam sprays base 3 and is equiped with steam jet 4 and venturi-effect induction apparatus 5, and steam 6 is injected food steamer body 1 via the steam jet 4 that steam sprays base 3, and convection action power makes steam 6 by food steamer body bottom buoyance lift, to food 7 heating; The recovered steam 16 that the convection current of food steamer body top is overflowed, enter vapour-recovery unit 2, vapour-recovery unit 2 sinks recovered steam 16 coolings, guiding steam sprays base 3, and steam sprays the venturi-effect induction apparatus 5 in the base 3, the venturi-effect that produces when utilizing steam 6 to spray by venturi-effect induction apparatus 5, make recovered steam 16 be gone into food steamer body 1 bottom by injection, import convection circulation, make the vapor recycle utilization, reduce the waste of the energy and water.
The venturi-effect induction apparatus of described energy and water saving steamer technical scheme, dependence is injected steam 6 injection recovered steams 16 and is imported convection current again, the steam that continues the to inject food steamer internal pressure that to raise, the steam of injecting must suitably be discharged, just can excessive accumulation pressure, though therefore described energy and water saving steamer technical scheme has reduced the steam discharge in a large number, still can not eliminate the discharge steam fully.
The present invention discloses a kind of hot pipe type food steamer technical scheme that does not have steam to discharge problem fully in cooking process, utilize heat pipe principle, the steam of food steamer is enclosed in the food steamer of a heat pipe-type structure, utilize the thermal source that is provided with in the heat pipe-type structure food steamer,, drive the steam convection current in the food steamer the Steam Heating in the food steamer, food is heated, vapor recycle convection current in the food steamer and not overflowing reaches energy-saving and water-saving, eliminates the purpose of discharging steam fully.
Summary of the invention
Main purpose of the present invention is to provide a kind of hot pipe type food steamer technical scheme that does not have steam to discharge fully in cooking process, utilize heat pipe principle, drive the steam convection current, the food steamer steam inside circulates automatically, heat energy is continued circle transmission give food, reaches purpose energy-conservation, water saving.
Another object of the present invention, be to provide a kind of control method of hot pipe type food steamer, in airtight hot pipe type food steamer, utilize the thermal source that is provided with in the heat pipe-type structure food steamer, to the Steam Heating in the food steamer, drive steam convection current in the food steamer, heat pipe-type vapor recycle pattern and steam injection drive mode are carried out alternately, and food is heated.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of hot pipe type food steamer comprises a food steamer body, a vapour-recovery unit, and a steam generator, a steam sprays base, and steam sprays base and also includes recovered steam hot room, steam jet, temperature control self-choke drain tap device; Its food steamer body, vapour-recovery unit, the recovered steam hot room is end to end in regular turn, and for steam packing is closed connection, constituting one is the heat pipe loop of hot transferring working medium with water vapour, is provided with one in the recovered steam hot room and promotes that the steam convection current is the built-in thermal source of purpose, and the recovered steam hot room is the heat pipe heat absorbing end, vapour-recovery unit is the heat pipe heat radiation end, and the food steamer body is a tube body of heat pipe; After the steam of recovered steam hot room obtains heat energy by built-in thermal source, tube body of heat pipe by food steamer body formation, enter the heat pipe heat radiation end that vapour-recovery unit constitutes, finally return the recovered steam hot room again, steam is in the heat pipe loop, obtain heat energy by built-in thermal source, the convection current come-up continues circulation, places the intrinsic food of food steamer to be recycled the Steam Heating of passing through; Temperature control self-choke drain tap device is closed drain tap when steam is full of hot pipe type food steamer, make the inner and atmospheric environment isolation of hot pipe type food steamer, hot pipe type food steamer inside becomes independently water body gas-liquid two-phase environment, and steam generator is supply steam when steam is not enough.
Described food steamer, its described built-in thermal source is a constant temperature heating device, heating-up temperature is greater than 100 degrees centigrade.
Described food steamer, its described steam sprays base, is annular container, comprises that steam sprays outer wall, the diapire of base, and diapire ecto-entad side step shape tilts, and extreme lower position forms the condensate water platform structure that confluxes; There is step to accept a circular connection platform on the diapire, the central through hole of diapire and steam jet circular bottom part outer wall are adaptive, steam jet is suitable for reading to have combined mechanism to connect the venturi-effect induction apparatus, and venturi-effect induction apparatus cylindrical seat closes in circular connection platform internal orifice edge; Spray base bottom wall one step wall fit location along outer wall and steam at the bottom of the circular connection platform, the upper end of circular connection platform has flange and food steamer body adaptive, and its underpart is a tubular construction, and passage is arranged on the barrel; The space that barrel inboard, steam jet, connection platform and induction apparatus surround is the recovered steam hot room, has a path to be connected between recovered steam hot room and venturi-effect induction apparatus; Outer wall is provided with temperature control self-choke drain tap device.
Described food steamer, its described steam spray base condensate water bus structure bottom built-in thermal source are set, to recovered steam and condensate water heating.
Described food steamer, its described steam spray base condensate water bus structure bottom, and a condensate water drainage channel is set, and condensate water imports the steam generator tank.
Described food steamer, its described steam sprays the Venturi tube induction apparatus of base steam jet upper edge installing, make by heat-conducting, built-in thermal source is arranged on the Venturi tube induction apparatus made from heat exchange pattern and heat-conducting Venturi tube induction apparatus bottom surface and is combined as a whole, and Venturi tube induction apparatus and recovered steam heater thermal conductance are logical.
Described food steamer, its described food steamer body and vapour-recovery unit all are that stainless steel is made, be connected by upper and lower affixed ring between the food steamer body of each food steamer and the annular steam retracting device, upper and lower affixed ring side section is the frame shape, be furnished with most through holes on its side wall and the downside wall, pass through for recovered steam, the steaming of establishing an activity in each food steamer every, vapour-recovery unit has an enclosing cover, and the number of vapour-recovery unit is identical with the number of food steamer.
A kind of control method of described hot pipe type food steamer, after it starts, output starts heating power to controller to the steam generator electric heater, produce steam at full speed, adopt the steam injection drive mode, steam is injected the food steamer body via the steam jet that steam sprays base, and the convection current buoyance lift enters vapour-recovery unit; When steam was full of food steamer body and vapour-recovery unit, temperature control self-choke drain tap device was closed exhaust outlet, reduces the steam generator heating power simultaneously to cooking heating power; Steam continues to inject the food steamer body via steam jet, and food steamer inner vapor pressure and temperature continue to raise, and steam temperature reaches the stop supplies steam of prescribing a time limit on the cooking temp, starts built-in heat power supply device simultaneously, enters heat pipe-type steam convection circulation pattern; After entering heat pipe-type steam convection circulation pattern, quantity of steam reduces because of steam loss, steam pressure and temperature descend synchronously, vapor (steam) temperature drops under the cooking temp prescribes a time limit, steam generator recovers output culinary art heating power, recover supply steam, stop built-in heat power supply device heating simultaneously, enter the steam injection drive mode again; Heat pipe-type vapor recycle pattern and steam injection drive mode are carried out alternately.
Described control method, the activation temperature that its described temperature control self-choke drain tap device is closed exhaust outlet is 93 degrees centigrade, is limited to 110 degrees centigrade on the cooking temp, is limited to 100 degrees centigrade down.
The present invention has following beneficial effect:
When the present invention is full of food steamer inside at steam, close drain tap, make the inner and atmospheric environment isolation of hot pipe type food steamer, hot pipe type food steamer inside becomes independently water body gas-liquid two-phase environment, do not have steam to discharge in the cooking process fully, reach purpose energy-conservation, water saving.
The problem that steam fills the air in the working environment obtains to improve fully.Do not have steam to fill the air the hot pipe type food steamer of problem fully, even can directly be positioned on the dining table, create the experience of the on-the-spot service in a kind of limit.
Hot pipe type food steamer of the present invention, simple in structure do not have a movable part, operation and maintenance easily.
Hot pipe type food steamer of the present invention also can operate as normal in the highlands.
Description of drawings
Fig. 1 is previous energy and water saving steamer key diagram;
Fig. 2 is the heat pipe principle key diagram;
Fig. 3 is a hot pipe type food steamer principle key diagram of the present invention;
Fig. 4 is hot pipe type food steamer one an embodiment key diagram of the present invention;
Fig. 5 is another embodiment key diagram of hot pipe type food steamer of the present invention;
Fig. 6 (a) is the exhaust apparatus key diagram;
Fig. 6 (b) is Fig. 6 (a) exhaust apparatus sheet metal structure key diagram;
Fig. 7 (a) is a venturi-effect induction apparatus cross section A-A structure key diagram among Fig. 1, Fig. 4, Fig. 5;
Fig. 7 (b) is a venturi-effect induction apparatus section C-C structure key diagram among Fig. 7 (a);
Fig. 7 (c) is a venturi-effect induction apparatus section B-B structure key diagram among Fig. 7 (b);
Fig. 8 (a) is the heating schedule key diagram of hot pipe type food steamer control method of the present invention;
Fig. 8 (b) is steam generator electric heater (VH) heating power schematic diagram;
Fig. 8 (c) is heat pipe electric heater (HPH) heating power schematic diagram.
The specific embodiment
Fig. 1 is previous energy and water saving steamer key diagram, it is a kind of energy and water saving steamer technical scheme that proposes by the inventor, the steam 6 that steam generator 40 produces, enter steam and spray base 3, steam 6 is injected food steamer body 1 via the steam jet 4 that steam sprays base 3, convection action power makes steam 6 by food steamer body 1 bottom buoyance lift, to food 7 heating; The recycle-water steam 16 of pore 15 on the food steamer body 1 top convection current effusion inner cap 9, enter vapour-recovery unit 2, vapour-recovery unit 2 sinks recovered steam 16 coolings, guiding steam sprays base 3, steam sprays the venturi-effect induction apparatus 5 in the base 3, utilize steam quicken by the time venturi-effect that produces, make recovered steam 16 be gone into food steamer body 1 bottom by injection, import convection circulation.
Carry the angle of heat energy to see it by thermodynamics, energy and water saving steamer shown in Figure 1, being actually a kind of water vapour that utilizes is defeated hot working fluid, carries the device of heat energy, water vapour contacts with food in carrying the heat energy way, and food is heated.The venturi-effect induction apparatus 5 of energy and water saving steamer shown in Figure 1 is when steam 6 is injected food steamer body 1, produce venturi-effect, make recovered steam 16 be gone into food steamer body 1 bottom, import convection circulation by injection, make the vapor recycle utilization, reduce the waste of the energy and water.
In order to keep steam to continue the power of circulative convection, steam 6 must constantly be injected food steamer body 1 by steam jet 4, and the venturi-effect to produce makes recovered steam 16 be gone into food steamer body 1 by injection.But the steam of injecting must suitably be discharged, just can excessive accumulation pressure, therefore the problem of discharging steam is still arranged.
The present invention discloses a kind of in cooking process, do not discharge the food steamer energy-saving and water-saving technical scheme of steam fully, utilize heat pipe principle, the steam of food steamer is enclosed in the food steamer of a heat pipe-type structure, utilize the thermal source that is provided with in the heat pipe-type structure food steamer, to the Steam Heating in the food steamer, drive the steam convection current in the food steamer, to the food heating, vapor recycle convection current in the food steamer and not overflowing, reach energy-saving and water-saving, eliminate the purpose of discharging steam fully.
Heat pipe is a kind of heat energy conveying technology of extensive utilization, in the electronic building brick cooling, for example shown in the U.S. Pat 6889753; The heat radiation of space flight facility is for example shown in the U.S. Pat 4463798; The frozen soil structure foundation is protected solid, prevents frozen ground during melting, and for example important status is occupied in aspect such as U.S. Pat 4505326.
Fig. 2 is the heat pipe principle key diagram, basically heat pipe 20 is to utilize two phase change of working medium 21 to carry heat energy, heat absorbing end 22 at heat pipe, the working medium gasification of being heated, absorb heat energy, the working medium of gasification flow to the radiating end 24 of heat pipe through heat pipe passage 23, gaseous working medium discharges heat energy, cooling liquefaction, and the working medium of liquefaction is with gravity and capillary force, draw resorption hot junction 22, continue circulation, heat energy is transported to radiating end 24 by heat absorbing end 22, the power resources of heat pipe are the heat energy around the heat absorbing end 22, except heat absorbing end and radiating end, heat-pipe working medium passage 23 all uses heat-insulating material 25 to coat.
General heat pipe all is to be purpose to carry heat energy, and the present invention utilizes heat pipe principle, drives the water vapour that had both deposited food steamer inside with heat energy, keeps the steam convection circulation, and the food in the opposite heat tube steam channel is heated to be purpose.
Fig. 3 is a hot pipe type food steamer principle key diagram of the present invention, hot pipe type food steamer 30 utilizes water vapour 6 to be defeated hot working fluid, carry heat energy, to 7 heating of the food in the food steamer body 1, the atmosphere that vapour-recovery unit 2 and temperature are lower contacts, and has the radiating and cooling function, makes recovered steam 16 cooling decompressions, after recovered steam 16 coolings, density increases, because of the gravity effect sinks to entering recovered steam hot room 17, in the recovered steam hot room 17, be provided with recovered steam heater 18, to recovered steam 16 heating, after being heated, recovered steam 16 regains kinetic energy, and density reduces, the convection current come-up enters in the food steamer body 1, to food 7 heating.Food steamer body 1, vapour-recovery unit 2, recovered steam heating clamber 17, form a hot-pipe system, in the hot-pipe system, water vapour is the working medium of carrying heat energy, recovered steam heater 18 is thermals source, recovered steam hot room 17 is heat absorbing end 22 of hot-pipe system, and vapour-recovery unit 2 is radiating ends 24 of hot-pipe system, and food steamer body 1 is the steam channel 23 of hot-pipe system, the temperature difference of heat absorbing end 22 and radiating end 24, cause the water vapour density variation, the water vapour that weight-driven density is different flows in hot-pipe system, carries heat energy that food is heated.Be that with the difference of general heat pipe shown in Figure 2 the power resources of hot pipe type food steamer are the inside that is arranged at heat pipe, the purpose of heating is to keep flowing of hot pipe type food steamer steam inside.
Fig. 4 is hot pipe type food steamer one an embodiment key diagram of the present invention, hot pipe type food steamer 30, comprise a food steamer body 1, vapour-recovery unit 2, recovered steam heating clamber 17, the hot-pipe system of forming, in the hot-pipe system, water vapour 6 enters vapour-recovery unit 2 by the pore 15 on food steamer body 1 inner cap 9, become recovered steam 16, water vapour 6 is to carry heat energy working medium with recovered steam 16, and the pore 15 on the inner cap 9 has the function that prevents opposing steam flow, and recovered steam heater 18 is thermals source, recovered steam hot room 17 is heat absorbing end 22 of hot-pipe system, vapour-recovery unit 2 is radiating ends 23 of hot-pipe system, and the temperature difference of heat absorbing end 22 and radiating end 23 causes the water vapour density variation, the water vapour that weight-driven density is different flows, and carries heat energy that food is heated.Food steamer body 1 is concentric structures with vapour-recovery unit 2, peripheral vapour-recovery unit 2 has heat insulation function for the food steamer body 1 of internal layer, recovered steam heater 18 is positioned at the extreme lower position of recovered steam heating clamber 17, it is the condensate water bus structure, the recovered steam heater is arranged in the condensate water bus structure, to recovered steam and condensate water heating.Safety valve S is arranged on the enclosing cover 19, can be manually or releasing pressure automatically, because be general technology, and non-theme, so do not describe in detail.
Wherein, it be annular container that steam sprays base 3, comprises that steam sprays outer wall 3a, the diapire 3b of base 3, the inclination of diapire 3b ecto-entad side step shape, and extreme lower position forms the condensate water platform structure 33 that confluxes; There is step 3c to accept a circular connection platform 31 on the diapire, the circular bottom part outer wall of the central through hole of diapire and steam jet 4 is adaptive, steam jet is suitable for reading combined mechanism, for example screw thread or tenon (not illustrating among the figure), connect the venturi-effect induction apparatus, venturi-effect induction apparatus cylindrical seat closes in circular connection platform 31 internal orifice edges; Circular connection platform 31 is made of plastics, base bottom wall one step 3c wall fit location is sprayed along outer wall and steam in its end, have flange and food steamer body 1 adaptive on the outer rim of circular connection platform 31, the bottom of circular connection platform 31 is tubular constructions, and passage is arranged on the barrel; The space that barrel inboard, steam jet 4, connection platform 31 and induction apparatus 5 surround is a recovered steam hot room 17, and recovered steam hot room 17 has a path 8 to be connected with 5 of venturi-effect induction apparatus; Outer wall is provided with drain tap device 60.
Steam jet 4, connection platform 31 and induction apparatus 5 all are the heads of disassembling combination easily, clean with convenient.
The upper edge that the lower end of food steamer body 1 and steam spray base 3 connects airtight, and food steamer body 1 comprises one deck food steamer and steamer cover 9 at least, and hole 15 is arranged on the steamer cover 9.
Vapour-recovery unit 2 also can be two decomposable monomers with food steamer body 1, after two combination of monomers, between perisporium, the gap of passing through for recovered steam is arranged.
After controller 41 stops electric heater 43 power supplies, begin 18 power supplies of the recovered steam heater in the recovered steam hot room 17, to recovered steam 16 heating, recovered steam heater 18 is constant temperature heating devices, and temperature is set in greater than 100 degrees centigrade, for example 110 degrees centigrade, make recovered steam regain kinetic energy, the convection current come-up carries heat energy that food is heated, and food steamer enters the heat pipe-type convection model.
Fig. 5 is another embodiment key diagram of hot pipe type food steamer of the present invention, the recovered steam heater 18 that steam sprays in the base 3 is combined as a whole with heat exchange pattern and Venturi tube induction apparatus 5, Venturi tube induction apparatus 5 is made by heat-conducting, and is logical with recovered steam heater 18 thermal conductances.Shown in the 18a dotted line, be that mode and the Venturi tube induction apparatus 5 that recovered steam heater 18 usefulness embed is combined as a whole among Fig. 5.The extreme lower position of recovered steam hot room 17, there is a drainage channel 31 condensate water to be imported the tank of steam generator 40, tank is divided into two parts by steam jet 4, but the bottom communicates, when electric heater 43 heating, when producing steam 6, steam 6 directly enters food steamer body 1, can not enter recovered steam hot room 17, just liquid level is variant because of the different meetings of pressure.
Fig. 6 (a) is the exhaust apparatus key diagram, the internal structure that shows exhaust apparatus 60, exhaust apparatus 60 is automatic throttle air valve device for steaming device of a built-in electric switchgear, comprise a pedestal 61, one capping 68, one temperature control bimetal leaf 63, temperature control bimetal leaf 63 surrounds in the chamber 62 of ccontaining bimetal leaf in pedestal 61 and capping 68; Pedestal 61 has an exhaust outlet 64, and air admission hole 69 is arranged in the capping 68, and temperature control bimetal leaf 63 peripheries have blow vent 65; Pedestal 61 inside are provided with push type electric switchgear 66 and ' zero ' shape sealing ring 67; Steam enters the chamber 62 of ccontaining bimetal leaf via air admission hole 69 in the capping 68, the blow vent 65 that passes bimetal leaf 63 peripheries leads to exhaust outlet 64, bimetal leaf 63 normalities are shaped as away from ' zero ' shape sealing ring 67, when steam temperature arrives rated value, the shape counter-rotating of bimetal leaf 63, be pressed on ' zero ' the shape sealing ring 67, close exhaust outlet, ' zero ' shape sealing ring 67 is oppressed press switch device 66 conductings simultaneously.Switching device 66 is communicated to controller 41, after controller 41 receives switching device 66 Continuity signals, carries out cooking process.
Fig. 6 (b) is Fig. 6 (a) exhaust apparatus sheet metal structure key diagram, and temperature control bimetal leaf 63 peripheries have blow vent 65, blow vent 65 can be shown in Fig. 6 (b) curved breach.
During the actual use of hot pipe type food steamer of the present invention, starting stage, the steam requirement was bigger, along with steam pours in because food temperature is still low, steam will be full of the food steamer body interior gradually, and, entering vapour-recovery unit 2 by the effusion of food steamer body 1 top, vapour-recovery unit 2 sinks recovered steam 16 coolings, when steam is discharged by exhaust apparatus 60, expression food steamer body 1 inside has been full of steam with vapour-recovery unit 2, and when the exhaust steam temperature arrived 93 degrees centigrade, exhaust apparatus 60 cut out.Food steamer body 1, vapour-recovery unit 2, recovered steam hot room 17 forms an airtight hot-pipe system, and recovered steam heater 18 is the built-in thermals source in the hot-pipe system, and water vapour is hot transferring working medium.After exhaust apparatus 60 cuts out, steam supply continues supply steam, food steamer internal vapor pressure and temperature rise synchronously, stop supplies steam when temperature rises to 110 degrees centigrade, the recovered steam heater begins heating, make recovered steam obtain heat energy and momentum, drive the convection current of hot-pipe system steam, carry heat energy that food is heated.
Food steamer internal vapor pressure and temperature all are subjected to the control of quantity of steam, when quantity of steam reduces because of partly condensing into liquid or leakage, steam pressure and temperature all will descend, when dropping to 100 degrees centigrade, temperature recovers supply steam, food steamer steam inside temperature is limited between 100 degrees centigrade and 110 degrees centigrade, and the food steamer internal vapor pressure is limited between 1.001 atmospheric pressures and 1.415 atmospheric pressures because of relevant with vapor (steam) temperature.The food steamer steam inside is in the dry saturated steam state of the circulation that continues to heat, and can not produce wet phenomenon.
Food steamer inside is full of steam, and after exhaust apparatus 60 cut out, food steamer inside was actually an independently environment of water body gas-liquid two-phase, separate state in order to ensure the food steamer internal environment, food steamer enclosing cover 19, vapour-recovery unit 2, steam sprays base 3, all airtight and fixed mechanism should be arranged between the steam generator 40, preventing that steam from releasing, because airtight and the fixed mechanism mode is numerous, and the technology for knowing, so do not describe in detail, for not showing in the simple and clear meter accompanying drawing yet.
Fig. 7 (a) is a venturi-effect induction apparatus cross section A-A key diagram, be Fig. 1, Fig. 4, the A-A section of venturi-effect induction apparatus 5 among Fig. 5, steam sprays base 3 and is equiped with steam jet 4 and venturi-effect induction apparatus 5, steam jet 4 is metal materials, the steam 6 that steam jet 4 is injected, conduct heat to recovered steam hot room 17, recovered steam 16 is heated, 5 of recovered steam hot room 17 and venturi-effect induction apparatus have path 8 to link, there is path 52 to link between Venturi tube waist 51 that Venturi tube 50 shrinks and the path 8, the steam 6 that steam jet 4 is injected, shrink because of sectional area at Venturi tube waist 51, flow velocity is accelerated, and path 52 is produced Venturi tube injection effect, the steam 16 of recovered steam hot room 17 is entered food steamer body bottom by path 8 injections, import convection circulation.The venturi-effect induction apparatus 5 that Fig. 7 (a) shows is Venturi tube combinations of a horizontal arrangement, wherein has six Venturi tube monomers, and horizontal arrangement is in order to reduce the even distribution of height and steam, and horizontal arrangement is not a kind of restriction.
Fig. 7 (b) is a venturi-effect induction apparatus section C-C key diagram, Fig. 7 (b) is the C-C section among Fig. 7 (a), show that the steam 6 that steam jet 4 is injected passes through steam jet 4 with thermal energy conduction, situation that the steam 16 of recovered steam hot room 17 is heated and recovered steam 16 enter Venturi tube 50 by path 8 situation.
Fig. 7 (c) is a venturi-effect induction apparatus section B-B upward view, and Fig. 7 (c) is that the B-B among Fig. 7 (b) looks up section, shows the position that concerns of path 8 and steam jet 4.
Fig. 8 (a) is the control method key diagram of hot pipe type food steamer of the present invention, after the startup, shown in Fig. 8 (b) steam generator electric heater (VH) heating power schematic diagram, electrothermal vapor device (VH) power of steam generator 40 outputs is to start heating power P1, heating produces steam at full speed, steam is injected food steamer body 1 via steam jet 4, and enters vapour-recovery unit 2; When steam was full of food steamer body 1 with vapour-recovery unit 2, temperature control self-choke drain tap device was closed exhaust outlet, and shown in the t1 time of Fig. 8 (a), temperature control self-choke drain tap device is closed exhaust outlet at 93 degrees centigrade; In the t1 time, reduce electrothermal vapor device (VH) heating power to cooking heating power P2 simultaneously, shown in Fig. 8 (b), the adjustment of heating power can be reached with wide modulation technique of ripple or thyristor, is general technology; Steam continues to inject food steamer body 1 via steam jet, and steam temperature continues to raise, and steam temperature reaches on the cooking temp prescribes a time limit, and for example 110 degrees centigrade, shown in the t2 time of Fig. 8 (a), stop supplies steam stops electrothermal vapor device (VH) heating power; Simultaneously the t2 time, start built-in heat power supply device 18, shown in Fig. 8 (c) built-in thermal source electric heater of heat pipe (HPH) heating power schematic diagram, begin to export the built-in thermal source electric heater of heat pipe (HPH) heating power, enter heat pipe-type vapor recycle pattern (HPM); Quantity of steam reduces because of condensing, and steam pressure and temperature also descend synchronously, and vapor (steam) temperature drops under the cooking temp prescribes a time limit, and for example 100 degrees centigrade, shown in the t3 time of Fig. 8 (a), steam generator recovers output culinary art heating power P2, recovers to supply steam; Simultaneously the t3 time, stop built-in heat power supply device heating, shown in Fig. 8 (c), enter steam injection drive mode (VM); Heat pipe-type vapor recycle pattern (HPM) is carried out alternately with steam injection drive mode (VM); The food steamer internal vapor pressure can not surpass certain upper limit, and steam pressure arrives the upper limit, and after steam jet stopped to inject steam, the food steamer steam inside kept the vapor recycle heating function according to heat pipe principle.
The activation temperature that described automatic throttle air valve device for steaming device is closed exhaust outlet is 93 degrees centigrade, is limited to 110 degrees centigrade on the cooking temp, is limited to 100 degrees centigrade under the cooking temp.Automatic throttle air valve device for steaming device is closed the activation temperature of exhaust outlet, can adjust with the mode of changing temperature control bimetal leaf 53 with height above sea level, and the cooking temp upper limit, the cooking temp lower limit can remain unchanged.
Claims (9)
1, a kind of hot pipe type food steamer comprises a food steamer body, a vapour-recovery unit, and a steam generator, a steam sprays base, and steam sprays base and also includes recovered steam hot room, steam jet, temperature control self-choke drain tap device; It is characterized in that, the food steamer body, vapour-recovery unit, the recovered steam hot room is end to end in regular turn, and closes connection for steam packing, and constituting one is the heat pipe loop of hot transferring working medium with water vapour, be provided with one in the recovered steam hot room and promote that the steam convection current is the built-in thermal source of purpose, the recovered steam hot room is the heat pipe heat absorbing end, and vapour-recovery unit is the heat pipe heat radiation end, and the food steamer body is a tube body of heat pipe; After the steam of recovered steam hot room obtains heat energy by built-in thermal source, tube body of heat pipe by food steamer body formation, enter the heat pipe heat radiation end that vapour-recovery unit constitutes, finally return the recovered steam hot room again, steam is in the heat pipe loop, obtain heat energy by built-in thermal source, the convection current come-up continues circulation, places the intrinsic food of food steamer to be recycled the Steam Heating of passing through; Temperature control self-choke drain tap device is closed drain tap when steam is full of hot pipe type food steamer, make the inner and atmospheric environment isolation of hot pipe type food steamer, hot pipe type food steamer inside becomes independently water body gas-liquid two-phase environment, and steam generator is supply steam when steam is not enough.
2, food steamer according to claim 1 is characterized in that, described built-in thermal source is a constant temperature heating device, and heating-up temperature is greater than 100 degrees centigrade.
3, food steamer according to claim 1 is characterized in that, described steam sprays base, is annular container, comprises that steam sprays outer wall, the diapire of base, and diapire ecto-entad side step shape tilts, and extreme lower position forms the condensate water platform structure that confluxes; There is step to accept a circular connection platform on the diapire, the central through hole of diapire and steam jet circular bottom part outer wall are adaptive, steam jet is suitable for reading to have combined mechanism to connect the venturi-effect induction apparatus, and venturi-effect induction apparatus cylindrical seat closes in circular connection platform internal orifice edge; Spray base bottom wall one step wall fit location along outer wall and steam at the bottom of the circular connection platform, the upper end of circular connection platform has flange and food steamer body adaptive, and its underpart is a tubular construction, and passage is arranged on the barrel; The space that barrel inboard, steam jet, connection platform and induction apparatus surround is the recovered steam hot room, has a path to be connected between recovered steam hot room and venturi-effect induction apparatus; Outer wall is provided with temperature control self-choke drain tap device.
4, food steamer according to claim 3 is characterized in that, described steam sprays base condensate water bus structure bottom built-in thermal source is set, to recovered steam and condensate water heating.
According to claim 1 or 3 described food steamers, it is characterized in that 5, described steam sprays base condensate water bus structure bottom, and a condensate water drainage channel is set, condensate water imports the steam generator tank.
6, food steamer according to claim 3, it is characterized in that, described steam sprays the Venturi tube induction apparatus of base steam jet upper edge installing, make by heat-conducting, built-in thermal source is arranged on the Venturi tube induction apparatus applying made from heat exchange pattern and heat-conducting Venturi tube induction apparatus bottom surface and is combined as a whole, and Venturi tube induction apparatus and recovered steam heater thermal conductance are logical.
7, food steamer according to claim 1, it is characterized in that, described food steamer body and vapour-recovery unit all are that stainless steel is made, be connected by upper and lower affixed ring between the food steamer body of each food steamer and the annular steam retracting device, upper and lower affixed ring side section is the frame shape, is furnished with most through holes on its side wall and the downside wall, pass through for recovered steam, the steaming of establishing an activity in each food steamer every, vapour-recovery unit has an enclosing cover, the number of vapour-recovery unit is identical with the number of food steamer.
8, a kind of control method of hot pipe type food steamer according to claim 1, it is characterized in that, after the startup, output starts heating power to controller to the steam generator electric heater, produce steam at full speed, adopt the steam injection drive mode, steam is injected the food steamer body via the steam jet that steam sprays base, and the convection current buoyance lift enters vapour-recovery unit; When steam was full of food steamer body and vapour-recovery unit, temperature control self-choke drain tap device was closed exhaust outlet, reduces the steam generator heating power simultaneously to cooking heating power; Steam continues to inject the food steamer body via steam jet, and food steamer inner vapor pressure and temperature continue to raise, and steam temperature reaches the stop supplies steam of prescribing a time limit on the cooking temp, starts built-in heat power supply device simultaneously, enters heat pipe-type steam convection circulation pattern; After entering heat pipe-type steam convection circulation pattern, quantity of steam reduces because of steam loss, steam pressure and temperature descend synchronously, vapor (steam) temperature drops under the cooking temp prescribes a time limit, steam generator recovers output culinary art heating power, recover supply steam, stop built-in heat power supply device heating simultaneously, enter the steam injection drive mode again; Heat pipe-type vapor recycle pattern and steam injection drive mode are carried out alternately.
9, control method according to claim 8 is characterized in that, the activation temperature that described temperature control self-choke drain tap device is closed exhaust outlet is 93 degrees centigrade, is limited to 110 degrees centigrade on the cooking temp, is limited to 100 degrees centigrade down.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710147660A CN100591250C (en) | 2007-08-31 | 2007-08-31 | Heat pipe steamer and its control method |
| PCT/CN2007/003703 WO2009026760A1 (en) | 2007-08-31 | 2007-12-20 | Heat pipe steaming box and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710147660A CN100591250C (en) | 2007-08-31 | 2007-08-31 | Heat pipe steamer and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101375767A true CN101375767A (en) | 2009-03-04 |
| CN100591250C CN100591250C (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710147660A Expired - Fee Related CN100591250C (en) | 2007-08-31 | 2007-08-31 | Heat pipe steamer and its control method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100591250C (en) |
| WO (1) | WO2009026760A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2009026760A1 (en) | 2009-03-05 |
| CN100591250C (en) | 2010-02-24 |
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