CN2910041Y

CN2910041Y - Energy saving kettle

Info

Publication number: CN2910041Y
Application number: CN 200620019752
Authority: CN
Inventors: 孙时泽; 孙如兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-29
Filing date: 2006-04-29
Publication date: 2007-06-13
Anticipated expiration: 2016-04-29

Abstract

The utility model discloses an energy saving kettle used in household, which comprises an internal kettle, an outer kettle, a heating layer, and a convection pipe, wherein the heating layer is arranged between the internal kettle and the outer kettle, the convection pipe connects the internal kettle and the outer kettle. The utility model is characterized in that an exhaust control device is arranged on the heating layer for controlling inlet air and preventing the excretion of hot air by controlling the exhaust. Cool air flowing into the heating layer is controlled at a required amount, and hot air is heated up in the heating layer by being compressed, which enhances heat transmission. The cross section of the convection pipe presents streamline form, which can reduce the resistance to the upward hot air in large scale, so that the energy saving function of the exhaust control device can be exerted sufficiently. Compared with a traditional kettle, the utility model can save energy and time, and reduce more than 50 percent of exhaust gas and clinker.

Description

Energy-saving water jug

Technical field

The utility model relates to the energy-saving water jug that a kind of family uses.

Background technology

Traditional kettle is flat, and the bottom heating surface area is little, and heat removes small part and passes in the water at the bottom of by kettle, most of excessive at the bottom of the kettle, not only the valuable energy of waste prolongs heat time heating time, and the pollution of increase waste gas and lime-ash, heated up in the living space, environment is caused adverse effect.

For increasing the heating surface area of kettle, improve the thermal efficiency, the water-jacket typ energy-saving water jug has appearred, and for example Chinese utility model patent specification CN91228110.3 discloses this energy-saving water jug.This energy-saving water jug is provided with inner bag (kettle), outer courage (kettle), is tightly connected and forms quirk (zone of heating) by water channel (convection tube).This structure has effectively strengthened heat transfer area, has improved the thermal efficiency.But quirk is the crack between the inside and outside kettle, its fixed size, the burner difference that family uses, the fuel difference, flame and temperature difference, user's custom difference, if flame and temperature height, thermal current can not all pass through from quirk, still has the portion of hot air-flow and overflows at the bottom of kettle, if flare and temperature are low, too much cold air can enter quirk and take away heat, and both of these case all can cause heat loss; Water channel is between quirk, and its bottom stops thermal current, makes the portion of hot air-flow fail to enter quirk and at the bottom of overflowing kettle from water channel bottom; It is one uncovered that the straight-through Hu Kou top of quirk is, and influences visual effect; Recessed kettle figure becomes a projecting edge at the bottom of the kettle, and purpose is that thermal current is imported quirk, but experimental results show that effect and not obvious.

The utility model content

The technical problems to be solved in the utility model provides a kind of more energy-conservation kettle, further improve the thermal efficiency: the air-flow that enters zone of heating is controlled, overcome the defective that zone of heating is difficult to mate stove fire, reduce the convection tube bottom the resistance of rising thermal current and the convection current that strengthens inside and outside Hu Shui.

Above-mentioned technical problem is to solve like this: this energy-saving water jug, comprise interior kettle, outer kettle, zone of heating, an above convection tube, zone of heating interior kettle and outside between the kettle, convection tube is positioned at zone of heating, its two ends connect interior kettle, outer kettle respectively, and exhaust control device is set on zone of heating.

Air inlet is controlled in the control exhaust exactly.Exhaust control device is controlled air inlet by the control exhaust, and the discharge of thermal current is played retardation.Because to the control of air inlet, the cold air that enters zone of heating is controlled in needed amount, can not take away heat energy because of too much entering of cold air; Because to the control of exhaust, the thermal current pressure that is blocked increases, the pressure increase raises hot stream temperature, has strengthened heat transfer.Flame and temperature height, required air is many, gas expands big, capacity is transferred big, otherwise capacity turn down, all transferring to capacity that thermal current all enters zone of heating, just do not overflow at the bottom of the kettle is best point.In best point of adjustment, the temperature that thermal current raises with supercharging in zone of heating is passed to inside and outside Hu Shui with heat.

Convection tube can adopt the streamlined cross section, can significantly reduce the resistance to the rising thermal current, and the expedite zone of heating that all enters of thermal current is given full play to the energy-conserving action of exhaust control device.Both cooperatively interact, and have improved the thermal efficiency.The streamlined convection tube is connected firmly inside and outside kettle, and makes the abundant convection current of inside and outside Hu Shui.

Exhaust control device divides manually and is automatic, and is provided with multiple structure.

Exhaust control device can be to be positioned at described zone of heating top, is made up of hood and the exhaust ring that is positioned at hood; Outside the kettle, the lower end was seated on the outer kettle in the hood upper end was enclosed within; Hood and exhaust ring are provided with the steam vent of mutual correspondence respectively; The relative rotation with exhaust ring of hood can be regulated capacity, and for example, hood is provided with stopper slot, and exhaust ring is provided with driving lever, and driving lever stretches out from stopper slot and drives exhaust ring and rotates in hood, and the rotation of driving lever is limited in the stopper slot.

Exhaust control device also can be to be positioned on the zone of heating, to be placed on outer kettle and to be enclosed within the outer regulating the qi flowing in the channels circle of kettle.Regulating the qi flowing in the channels number of turns amount is more than one, and many regulating the qi flowing in the channels circle areas are all unequal, thereby also inequality to the retardance of rising thermal current.Owing to have many regulating the qi flowing in the channels circles, change the regulating the qi flowing in the channels circle and can regulate to capacity.

Exhaust control device can also be to be positioned on the zone of heating, to be enclosed within the outer and liftable retaining air ring of kettle.Regulate the height of retaining air ring, change the distance of itself and zone of heating gas outlet, can control capacity.

Above exhaust control device is manual, regulates capacity by rotation exhaust ring, replacing regulating the qi flowing in the channels circle or lifting retaining air ring.Following exhaust control device is automatic.

Exhaust control device be positioned on the zone of heating, cylindrical is placed on the outer kettle, circle is enclosed within the outer endless metal paper tinsel of kettle, circle and interior kettle lateral wall matched in clearance in the endless metal paper tinsel.The rising thermal current produces buoyancy to the endless metal paper tinsel, and metal forming rises, and is in to suspend or half suspended state.Temperature is low, and the thermal current of rising is little, and it is low or motionless that metal forming rises, and capacity is little; The temperature height, the thermal current of rising is big, the height that metal forming rises, capacity is big.Like this, capacity is controlled automatically by the metal forming lifting, need not manual adjustment.

For keep annular metal forming smooth, prevent to subside and guarantee the unimpeded of rising thermal current in the zone of heating, the support ring of ventilation is set under the endless metal paper tinsel, support ring be placed on the outer kettle and be enclosed within outside the kettle, the endless metal paper tinsel is placed on the support ring.

The endless metal paper tinsel suspends with thermal current, owing to have certain frictional force between endless metal paper tinsel and the interior kettle lateral wall, and the buoyancy that is subjected to of endless metal paper tinsel and unbalanced, always thereby be not in level during the suspension of endless metal paper tinsel.The endless metal paper tinsel rises too high, kettle lateral wall and can not getting back on outer kettle or the support ring in may hanging over during falling, thereby influence use next time.For this reason, spacing back-up ring is set above the endless metal paper tinsel, in order to the height of restriction metal forming suspension.

As further improvement; another kind of automatic vent control device is made up of endless metal paper tinsel, the splicing sleeve that is provided with steam vent and spacing back-up ring; the endless metal paper tinsel be placed on the steam vent of splicing sleeve and with the splicing sleeve matched in clearance; splicing sleeve and spacing back-up ring interlock and form whole and be placed on the outer kettle and be enclosed within outside the interior kettle; this structure one is the waterproof ventilation; the 2nd, protect annular metal forming, the 3rd, be convenient to installation and removal.

For the exhaust control device that regulating the qi flowing in the channels circle, retaining air ring and endless metal paper tinsel are set, above regulating the qi flowing in the channels circle, retaining air ring and endless metal paper tinsel, hood is set, outside the kettle, the lower end was seated on the outer kettle in the hood upper end was enclosed within.Hood is provided with steam vent.Hood protection regulating the qi flowing in the channels circle, retaining air ring and endless metal paper tinsel, block water enters zone of heating, and plays decoration function, and steam vent becomes the passage of combustion gas.

The utility model further improves the thermal efficiency of energy-saving water jug.Compare with traditional kettle, energy-conservation, save time, reduce discharging waste gas or lime-ash is not less than 50%.

Description of drawings

Below in conjunction with accompanying drawing five kinds of embodiments of the present utility model are described in further detail.

Fig. 1 is the partial sectional view of first kind of embodiment of the utility model energy-saving water jug.

Fig. 2 is the upward view of Fig. 1.

Fig. 3 is the streamlined convection tube of energy-saving water jug shown in Figure 1 and the tongue piece on the hood sectional view along the A-A line among Fig. 1.

Fig. 4 is the partial sectional view of second kind of embodiment of the utility model energy-saving water jug.

Fig. 5 is the partial enlarged drawing of the exhaust control device of energy-saving water jug shown in Figure 4.

Fig. 6 is the vertical view of the exhaust control device of energy-saving water jug shown in Figure 4.

Fig. 7 is the partial sectional view of the third embodiment of the utility model energy-saving water jug.

Fig. 8 is the partial enlarged drawing of the exhaust control device of energy-saving water jug shown in Figure 7.

Fig. 9 is the partial sectional view of the 4th kind of embodiment of the utility model energy-saving water jug.

Figure 10 is the partial enlarged drawing of the exhaust control device of energy-saving water jug shown in Figure 9.

Figure 11 is the vertical view of the support ring of Fig. 9, energy-saving water jug shown in Figure 10.

Figure 12 is the half sectional view of the support ring of energy-saving water jug shown in Figure 11.

Figure 13 is the vertical view of the endless metal paper tinsel of Fig. 9, energy-saving water jug shown in Figure 10.

Figure 14 is the partial sectional view of the 5th kind of embodiment of the utility model energy-saving water jug.

Figure 15 is the partial enlarged drawing of the exhaust control device of energy-saving water jug shown in Figure 14

Figure 16 is the vertical view of the splicing sleeve of Figure 14, energy-saving water jug shown in Figure 15.

Figure 17 is the half sectional view of the splicing sleeve of energy-saving water jug shown in Figure 16.

The specific embodiment

From Fig. 1 to first kind of embodiment shown in Figure 3 as can be known, zone of heating 1 is provided with an above convection tube 6 in the zone of heating 1 between interior kettle 2 and outer kettle 3, the outer kettle 3 of kettle mouth 5 connections.Exhaust control device is positioned at zone of heating 1 top, by hood 8 be positioned at hood 8 rotatable exhaust rings 7 and form.Outside the kettle 2, the lower end was seated on the outer kettle 3 in hood 8 upper ends were enclosed within.Hood 8 and exhaust ring 7 are provided with the steam vent 9 of mutual correspondence respectively.Hood 8 is provided with stopper slot 10, and exhaust ring 7 is provided with driving lever 11, and driving lever 11 stretches out from stopper slot 10 and connects anti-scald insulation shifting block 12.Convection tube 6 cross sections are streamlined, are positioned at zone of heating 1, kettle 2 and outer kettle 3 in two ends are communicated with respectively.As preferably, streamlined convection tube 6 is thin-and-long, and it highly is no more than outer kettle 3 height, and highly be good near outer kettle 3, kettle 2 and outer kettle 3 can make the abundant convection current of inside and outside Hu Shui again in so both can firmly having connected, and also make things convenient for the outflow of interior Hu Shui.A convection tube 6 is positioned at kettle mouth 5 inboards, and is corresponding with kettle mouth 5, is in the position nearest with kettle mouth 5, when the kettle mouth is downward-sloping, interior Hu Shui with beeline through convection tube 6 and outer kettle 3 from 5 outflows of kettle mouth.Hood 8 can be provided with 1 to 3 tongue piece that inwardly puts in 4, is stuck on the interior kettle 2.

Above-mentioned exhaust control device is made up of hood 8 and exhaust ring 7, and both are one quiet one moving, one outer one li, does rotation relatively.Hood 8 and exhaust ring 7 are respectively equipped with corresponding steam vent 9, when the steam vent 9 of the steam vent 9 of hood 8 and exhaust ring 7 overlaps (Figure 1 shows that coincidence), capacity maximum, when the steam vent 9 of hood 8 and the steam vent 9 of exhaust ring 7 stagger, capacity reduces, and staggers fully, then stuffiness.Move insulation shifting block 12, can regulate exhaust control device.Hood 8 also block water enters zone of heating, and plays decoration function.

Below the difference of four kinds of embodiments and first kind be exhaust control device, other parts are identical.Same section repeats no more.

Fig. 4 is to be positioned on the zone of heating 1, to be placed on the outer kettle 3 and to be enclosed within kettle 2 regulating the qi flowing in the channels circle 14 outward to the exhaust control device of second kind of embodiment shown in Figure 6.Regulating the qi flowing in the channels circle 14 quantity are more than one, and the area of many regulating the qi flowing in the channels circles is all unequal.Can the interior circle of regulating the qi flowing in the channels circle 14 establish three be enclosed within the projection 13 of kettle 2, this projection 13 makes in the regulating the qi flowing in the channels circle 14 and leaves the gap and keep equidistant between the circle and interior kettle 2, waste gas is discharged from the gap.Regulating the qi flowing in the channels circle 14 internal diameters are less than or equal to outer kettle 3 internal diameters greater than interior kettle 2 external diameters.The internal diameter of regulating the qi flowing in the channels circle 14 does not wait, and its area is just unequal, and is inequality to the retardance of thermal current yet.Owing to have many regulating the qi flowing in the channels circles, change the regulating the qi flowing in the channels circle and can regulate to capacity.Obviously, the regulating the qi flowing in the channels circle also can be other shapes, and for example, interior circle is enclosed within interior kettle 2, and cylindrical is provided with two to three supporting ribs, and supporting rib is placed on the outer kettle 3, and its cylindrical is less than or equal to outer kettle 3 internal diameters.

The exhaust control device of Fig. 7, the third embodiment shown in Figure 8 is to be positioned at zone of heating 1 top, to be enclosed within the outer and liftable retaining air rings 28 of kettle 2, retaining air ring 28 and interior kettle 2 matched in clearance.Regulate the distance of retaining air ring 28 and zone of heating 1 gas outlet, can control capacity.Multiple mode lifting retaining air ring 28 is arranged.Can be the guide pin bushing 17 and the nut 18 of screw thread with cylindrical and grip hood 8, guide rod 19 passes guide pin bushing 17 and mutual matched in clearance, guide rod 19 lower ends connect retaining air ring 28, match with adjusting nut 16 in screwed upper end, the cylindrical of adjusting nut 16 is rough surfaces, and rotation adjusting nut 16 is a liftable retaining air ring 28.Preferably guide pin bushing 17 is arranged on hood 8 away from kettle mouth 5 and near a side of hinge seat 15, like this when pouring tilts, the weight of retaining air ring 28 self is adjusted to and interior kettle 2 equidistant positions voluntarily with justifying in it.Because retaining air ring 28 weight are lighter, a guide rod 19 can make retaining air ring 28 parallel with the zone of heating gas outlet.Can certainly a guide rod be set in guide rod 19 corresponding positions again, regulate two adjusting nuts and keep off air ring with lifting; The retaining air ring can also connect a driving lever and two cramp bars, and the three evenly distributes, at the setting of hood sidewall and driving lever and corresponding three skewed slots of cramp bar, cramp bar is placed in the skewed slot, driving lever stretches out in skewed slot, mobile driving lever, the lifting while rotating of retaining air ring.

Fig. 9 to the exhaust control device of the 4th kind of embodiment shown in Figure 13 be positioned on the zone of heating 1, cylindrical is placed on the outer kettle 3, circle is enclosed within kettle 2 endless metal paper tinsel 24 outward, endless metal paper tinsel 24 and interior kettle 2 lateral wall matched in clearance.As preferably, the support ring 25 of ventilation can be set for 24 times at the endless metal paper tinsel, circle is provided with some elongated shape supporting ribs 22 in the support ring 25, and endless metal paper tinsel 24 is placed on the support ring 25.Supporting rib 22 supports annular metal forming 24, reduces the contact area between support ring 25 and the endless metal paper tinsel 24, keeps the smooth of annular metal forming 24, prevents 24 distortion of endless metal paper tinsel and influences its sensitivity, and thermal current passes through from the neutral between the supporting rib 22.Support ring 25 is placed on the outer kettle 3 and is enclosed within outside the interior kettle 2, and its bottom outer edge is bent to form the platform that exceeds outer kettle 3 downwards, in case the ponding on the outer kettle is seeped into endless metal paper tinsel 24.Support ring also can be established supporting rib at cylindrical except establishing supporting rib at interior circle, and supporting rib is placed on the outer kettle 3, and interior circle is enclosed within outside the interior kettle 2; Support ring can also be the ring that has steam vent.Circles can be provided with more than three the projection 27 with interior kettle 2 lateral wall matched in clearance in the endless metal paper tinsel 24, can reduce the frictional force between endless metal paper tinsel 24 interior circles and interior kettle 2 lateral walls, help the lifting of endless metal paper tinsel 24, and being the water indwelling passage under oozing along interior kettle 2 lateral walls, anti-sealing is stained with endless metal paper tinsel 24 and influences its sensitivity.Endless metal paper tinsel 24 tops are provided with spacing back-up ring 20.Spacing back-up ring 20 the first half are straight tubulars, are provided with 1 to 3 tongue piece that inwardly puts in 23, tighten mutually with shrinkage pool 21 on interior kettle 2 lateral walls, and the latter half can be an annular, and its outward flange is slightly downward-sloping, is beneficial to draining.Certain spacing back-up ring also can be fixed on the hood 8, it can also be the ring that three legs support, the interior circle of ring is enclosed within outside the interior kettle 2, article three, leg is placed on the outer kettle 3, as long as can limit the height of metal forming 24 and make it the level suspension, but compare still preferred spacing back-up ring 20 mutually, because it not only limits the hoverheight of metal forming 24, make it to suspend and the level falling in 20 times levels of spacing back-up ring, unlikely hanging on interior kettle 2 lateral walls, and play the effect of eaves, stop that the water that flows down along interior kettle 2 lateral walls is stained with metal forming 24 and influences its sensitivity.Metal forming can be used difficult metal material manufacturing of giving birth to embroidery such as aluminium, stainless steel, copper.

Figure 14 extremely exhaust control device of the 5th kind of embodiment shown in Figure 17 is made up of endless metal paper tinsel 24, splicing sleeve 26 and spacing back-up ring 20, endless metal paper tinsel 24 be placed on the splicing sleeve 26 and with splicing sleeve 26 matched in clearance, splicing sleeve 26 is placed on the outer kettle 3, its bottom outer edge is bent to form the platform that exceeds outer kettle 3 downwards, in case the ponding on the outer kettle is seeped into endless metal paper tinsel 24.Circles can be provided with more than three the projection 27 with splicing sleeve 26 lateral wall matched in clearance in the metal forming 24, to reduce the frictional force between metal forming 24 and the splicing sleeve 26.Splicing sleeve 26 is enclosed within outside the spacing back-up ring 20, and spacing back-up ring 20 is enclosed within outside the interior kettle 2.Spacing back-up ring 20 the first half can be the slightly downward-sloping rings of outward flange, help the outflow of water.Splicing sleeve 26 is provided with steam vent 9, and thermal current passes through from steam vent 9.Splicing sleeve 26 and spacing back-up ring 20 fasten mutually, and metal forming 24 is therebetween, constitute the integral body of waterproof, ventilation.Spacing back-up ring 20 is positioned at splicing sleeve 26 tops, not only limit the hoverheight of annular metal forming 24, and protection and cover annular metal forming 24, the entering of block water, waste gas discharges from the neutral between splicing sleeve 26 and the spacing back-up ring 20, the scope of the height of neutral metal forming 24 liftings just.

Above-mentioned second to the 5th kind of embodiment all is provided with hood 8, is positioned on the exhaust control device, and outside the kettle 2, the lower end is seated on the outer kettle 3 in its upper end cover.Hood 8 is provided with steam vent 9.Hood 8 is used to protect exhaust control device, prevents that water from flowing into zone of heating 1 or being stained with metal forming 24, and plays decoration function, and waste gas is discharged from steam vent 9.The hood 8 of the third embodiment also is used to connect guide pin bushing 17.

For first kind of embodiment, during use, energy-saving water jug is placed on the burner, observe the situation that flame enters zone of heating.At the bottom of overflowing kettle as flame, can strengthen exhaust, mobile shifting block 12 makes exhaust ring 7 rotations, with the steam vent 9 of the steam vent 9 of hood 8 and exhaust ring 7 to overlap direction be adjusted to flame all enter zone of heating 1 and with hand outside at the bottom of the kettle just imperceptible scorching hot till.All entered zone of heating 1 as flame, can reduce exhaust, the steam vent 9 disclination evolutions with the steam vent 9 of hood 8 and exhaust ring 7 of trying are to adjusting, also with till the outside at the bottom of the kettle is just imperceptible scorching hot.As use the burner of no obvious flame such as coal stove, feel with feel during adjusting to get final product.

Second kind of embodiment be owing to have the regulating the qi flowing in the channels circle 14 that internal diameter does not wait, during use, overflow kettle as thermal current at the bottom of, can strengthen exhaust, change little regulating the qi flowing in the channels circle 14 to the thermal current of area all enter zone of heating 1 and with hand outside at the bottom of the kettle just imperceptible scorching hot till.All entered zone of heating 1 as thermal current, can try to change the big regulating the qi flowing in the channels circle 14 of area, also with till the outside at the bottom of the kettle is just imperceptible scorching hot.Earlier hood 8 is taken off, again it is put again behind the replacing regulating the qi flowing in the channels circle 14.For the user that custom is heated up water with fixing duration and degree of heating, this a kind of exhaust control device is proper.

The third embodiment is regulated capacity by rotation adjusting nut 16 liftings retaining air ring 28.Then capacity is big for the height of 28 liters of air rings of retaining, otherwise then capacity is little, when retaining air ring 28 drops on outer kettle 3, and the capacity minimum.The height of the adjusting nut 16 that observation guide rod 19 exceeds can be learnt the distance of retaining air ring 28 and zone of heating 1 gas outlet.Regulating step is similar to first kind of embodiment.

The exhaust control device of fourth, fifth two kinds of embodiments is self-regulating.During use, metal forming 24 is with the big or small automatic lifting of thermal current, and its lifting height is limited in spacing back-up ring 20 bottoms.Thermal current interrupts, and metal forming 24 promptly falls back on support ring 25 or the splicing sleeve 26 automatically.

The utility model is not limited to the above-mentioned specific embodiment, and other malformations can also be arranged, and for example, exhaust control device can be varied; Hood and exhaust ring one moving are quiet, can all be movable also, do relative rotation and can regulate capacity; Hood can be fixed on interior kettle or the outer kettle in many ways; The convection tube cross section can be oval, water droplet shape, pointed at both ends.As long as adopted exhaust control device, all drop on protection domain of the present utility model.

Claims

1, a kind of energy-saving water jug, comprise interior kettle, outer kettle, zone of heating, an above convection tube, described zone of heating in described kettle and described outside between the kettle, described convection tube is positioned at described zone of heating, its two ends connect described interior kettle and described outer kettle respectively, it is characterized in that: on described zone of heating exhaust control device is set.

2, energy-saving water jug according to claim 1 is characterized in that: described exhaust control device is made up of hood and the exhaust ring that is positioned at described hood; Described hood upper end is enclosed within outside the described interior kettle, and the lower end is seated on the described outer kettle; Described hood and described exhaust ring are provided with the steam vent of mutual correspondence respectively; Described hood can rotate relatively with described exhaust ring.

3, energy-saving water jug according to claim 1 is characterized in that: described exhaust control device be placed on the described outer kettle and be enclosed within described in the outer removable regulating the qi flowing in the channels circle of kettle.

4, energy-saving water jug according to claim 1 is characterized in that: described exhaust control device is to be enclosed within the outer and liftable retaining air ring of described interior kettle, described retaining air ring and described interior kettle lateral wall matched in clearance.

5, energy-saving water jug according to claim 1 is characterized in that: described exhaust control device is that cylindrical is placed on the described outer kettle, interior circle is enclosed within the outer endless metal paper tinsel of described interior kettle, circle and described interior kettle lateral wall matched in clearance in the described endless metal paper tinsel.

6, energy-saving water jug according to claim 5 is characterized in that: the support ring of ventilation is set under described endless metal paper tinsel, and described support ring is placed on the described kettle outside and is enclosed within outside the described interior kettle, and described endless metal paper tinsel is placed on the described support ring.

7, according to claim 5 or 6 described energy-saving water jugs, it is characterized in that: above described endless metal paper tinsel spacing back-up ring is set, described spacing back-up ring limits the height that described endless metal paper tinsel suspends.

8, energy-saving water jug according to claim 5, it is characterized in that: described exhaust control device is made up of described endless metal paper tinsel, splicing sleeve and described spacing back-up ring, described endless metal paper tinsel be enclosed within described splicing sleeve outer and with described splicing sleeve lateral wall matched in clearance, described splicing sleeve is enclosed within outside the described spacing back-up ring and is placed on the described outer kettle, outside the kettle and be positioned on the described splicing sleeve, described splicing sleeve is provided with steam vent to described limiting block snare in described.

9, according to claim 1,3,4,5,6 or 8 described energy-saving water jugs, it is characterized in that: described exhaust control device top is provided with hood, described hood upper end is enclosed within outside the described interior kettle, and the lower end is seated on the described outer kettle, and described hood is provided with steam vent.

10, according to claim 1,2,3,4,5,6 or 8 described energy-saving water jugs, it is characterized in that: described convection tube cross section is a streamlined.