CN2141056Y - Energy-saving efficient water jacket water heater - Google Patents

Abstract

The utility model relates to a domestic heat exchanger, particularly to a water jacket type energy saving efficient water heater which uses gas or coal as the heat source and can heat the running water. The utility model is composed of a water jacket and a heating pipe arranged in the water jacket. The utility model is characterized in that the water jacket has a two-layer hollow cavity structure, the side of the lower part of the water jacket is provided with a cooling water inlet, the upper end part is provided with a waste gas hole for exhausting gas, a preheating water inlet is arranged at the inner side of the upper end part of the water jacket, and the preheating water inlet is connected with a heating pipe of which the other end penetrates from the upper part of the water jacket or the side of the water jacket. The heating pipe is in a multi-layer discal helical shape.

Description

Energy-saving efficient water jacket water heater

The utility model relates to a kind of family expenses heat exchanger, particularly is the energy-efficient water heater of water-jacket typ with the running water heating of thermal source with combustible gas or coal.

At present, this class water heater has two kinds: a kind of is Pneumatic-hydraulic interlocked formula water heater, promptly can control the size of gas by the size of water, though it controls convenient, but gas consumption big (air consumption 1.2-1.5 cubic meter/hour), so caloric value is big, it is sufficient to supply water, and is a kind of serviceability water heater preferably.But its weak point is; 1, because of Pneumatic-hydraulic interlocked, gas enters the toilet, need pay special attention to safety problem.2, complex structure, the price height, generally the high 4-5 of water heater that separates than second kind of air water is doubly.Another kind is the separately water heater of control of air water, and it can be placed on heating use on the kitchen range as cooker.Its advantage is: combustion gas does not enter the toilet, so safe and reliable.Cheap, be well suited for the not high general family of income and use.Because of energy shortage at present, some city limits is used first kind of many water heater of consumption gas, so the water heater that air water separates is popular to people, expects rising market.But its weak point is: 1, because of air water separates, need separately control, so not as first kind of convenience.2, water yield is less under the certain situation of leaving water temperature, because of it is to be placed on the kitchen range to use, and the gas output of general kitchen range is certain, and promptly two burners are altogether about 0.8 cubic metre/hour, lower by about 50% than Pneumatic-hydraulic interlocked water heater gas output, so caloric value is limited.And the temperature of people's shower is certain basically, promptly about 40 ℃, so under the uniform temp situation, water yield is just low by about 50%, often can not normally use in the winter time.As seen from the above analysis, between these two kinds of water heaters, also exist one and fail to satisfy fully the neutral gear that people require.Promptly under the situation of limited air feed heat supply, use the enough water heaters of cheap safe water yield.Obviously, because of its air feed quantitative limitation, how to improve its thermal efficiency and just become the key that addresses this problem.

The purpose of this utility model; Be based on the problem that the aforementioned hot hydrophone exists and to disclose the thermal efficiency that a kind of air water separates higher, safe in utilization, and the energy-efficient water heater of cheap water-jacket typ.

The utility model is achieved in that the energy-efficient water heater of water-jacket typ is made up of water jacket 3 and the heating tubes that are contained in the water jacket 3, and water jacket 3 is the double-layer cavity structure, its lower side has a cooling water inlet 1, its upper end has the exhaust apertures of using for exhaust 5, in the inboard, upper end preheating water import 8 is arranged, preheating water import 8 links with heating tube 4, and the other end of heating tube 4 passes from the top of water jacket 3, also can pass from the side.Heating tube 4 is multilayer plate-like spiralitys.

Good effect of the present utility model is: the running water preheating of can constantly flowing around it and in the intercalated water sleeve on top constantly is pulled away the waste heat that outwards distributes and is able to the utilization of fullest, down to scattering and disappearing hardly.And the heating tube of multilayer disk-like structure absorbs layer by layer to heat, makes heat exchange be in optimum state all the time, so the EGT of discharging is very low, thereby the thermal efficiency is high.Under also insoluble situation of energy shortage short time, many cities adopt the limit gas, when exceeding standard measures such as doubling charge, and the utility model water heater is with its high thermal efficiency.Inexpensive in addition safety, so it has a extensive future, society and economic benefit are tangible.

Description of drawings is as follows:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a top view of the present utility model.

Wherein:

1, cooling water inlet 2, water inlet pipe 3, water jacket

4, heating tube 5, exhaust apertures 6, hot water outlet

7, outlet pipe 8, preheating water import

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, 2, the utility model is achieved in that the energy-efficient water heater of water-jacket typ is made up of water jacket 3 and the heating tubes that are contained in the water jacket 3, and water jacket 3 is the double-layer cavity structure, its lower side has a cooling water inlet 1, its upper end has the exhaust apertures of using for exhaust 5, in the inboard, upper end preheating water import 8 is arranged, preheating water import 8 links with heating tube 4, and the other end of heating tube 4 passes from the top of water jacket 3.Also can pass from the side.Heating tube 4 is multilayer plate-like spiralitys.Its outside is the intercalated water sleeve 3 that double layer of metal is made, inside is the heating tube 4 that turns to the multilayer disk-like structure with metal tube, cold water enters the intercalated water sleeve 3 from bottom water inlet pipe 2, water in the water jacket 3 absorbs waste heat and obtains preheating, the water of preheating enters the upper strata of multilayer plate-like heating tube 4 through preheating water import 8, continue to utilize the waste heat heating, pass through layer by layer successively from the top down then, arrive the highest bottom of heating-up temperature at last, water through repeatedly preheating is flowed out by outlet pipe 7 after this heating, for use.

Claims (3)

1, the energy-efficient water heater of a kind of water-jacket typ, it is made up of water jacket 3 and the heating tubes 4 that are contained in the water jacket 3, it is characterized in that: water jacket 3 is the double-layer cavity structure, its lower side has a cooling water inlet 1, its upper end has the exhaust apertures of using for exhaust 5, in the inboard, upper end preheating water import 8 is arranged, preheating water import 8 links with heating tube 4, and the other end of heating tube 4 passes from the top of water jacket 3.

2, the energy-efficient water heater of water-jacket typ according to claim 1, it is characterized in that: the other end of heating tube 4 passes from the side of water jacket 3.

3, the energy-efficient water heater of water-jacket typ according to claim 1 is characterized in that: heating tube 4 is multilayer plate-like spiralitys.

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