CN2602281Y - Return air volumetric honey-comb coal water heater - Google Patents

Abstract

The utility model belongs to a heat exchange technology on the scope of how to strengthen the heat transmission. The utility model is a device which can utilize residual heat and high temperature air back-circulation from honeycomb briquette boiling rice to realize the continuous circulation of changing cold water quickly into hot water. Compared with the existing honey comb briquette stove, the device is provided with multi-functionality. The device can not only boil rice and fry dishes, but also use the produced continuously circulated hot water to take shower; third, when time is urgent, the firepower can be regulated. The utility model is safe, environment protecting and energy saving, and the application cost is much lower than the existing gas fuel water heater and electric water heater. Thereby the utility model has very wide market prospect. The utility model is realized like this: at first, a 1-1.5mm thickness steel board is utilized to be welded into upside cylinder shape, the underside cone shape as a whole is applied as a honeycomb briquette combustion chamber (15), the outside of the honeycomb briquette combustion chamber is sleeved with a specially made annular heat exchanger (11), a squirrel-cage steam generator (13), and a annular water container (4) , a heat insulation material (3) and a shell (2) are sleeved outside the exchanger and the generator, and various components can be connected with various controlling valves through pipes (a heat air back-circulation pipe and an inlet branch) to realize the goal.

Description

Return air positive displacement honeycomb briquette water heater

The utility model belongs to the technical field of the reinforcing heat transfer in the cold and hot medium exchange. I.e., how the cold water medium improves the efficiency of heat exchange between them during the process of passing through the high temperature object.

The technical characteristics of the existing honeycomb briquette stove are as follows: slow combustion and low thermal efficiency. It is very difficult to use honeycomb briquette as fuel to realize the shower by changing cold water into hot water quickly like a gas water heater. It is found that no continuous circulating device which uses honeycomb briquette as fuel to realize quick change of cold water into hot water, namely, the honeycomb briquette water heater exists in the prior art.

According to the characteristics of the honeycomb briquette stove, the utility model aims to realize a continuous circulation device for changing cold water into hot water rapidly by using the waste heat generated by burning the cooking of the honeycomb briquette stove, namely a return air positive displacement honeycomb briquette water heater.

The utility model is realized like this. The honeycomb briquette stove is designed according to the diameter phi 96mm of honeycomb briquette in the local area, and the honeycomb briquette stove is made into a cylindrical combustion chamber, i.e. a stove core (the shape is that the upper part is cylindrical, the lower part is conical, the two parts are welded into a whole, and the size of the furnace core can be made into different specifications according to the external diameter of the honeycomb briquette). The outer surface of the combustion chamber is sleeved with a special heat exchanger (designed according to the diameter phi of 96mm of honeycomb briquette). The squirrel-cage steam generator is characterized in that an annular water container (the volume can be made into different specifications, and the volume is designed to be about 30 liters) is sleeved on the outer layers of the heat exchanger and the squirrel-cage steam generator, and the outermost layer is made of a heat insulation material and a shell; then the water mixing device is realized by connecting pipelines (a flue gas pipeline and a water inlet pipeline), a water mixing valve, a one-way valve, a three-way valve, a stop valve and the like.

FIG. 1 is a full-section assembly drawing and a pipeline connection drawing of the present invention; FIG. 2 is a sketch of an annular heat exchanger, (in the drawing, 1 is an annular closed copper pipe with a diameter of 10mm, 2 is a galvanized sheet heat absorbing sheet with a thickness of 0.25mm, a is a cold water inlet, and b is a hot water outlet); FIG. 3 is a sketch of a squirrel-cage steam generator (1 is a ring container, 2 is a phi 16mm copper pipe)

The following describes the components and the connection relationship of the components of the present invention with reference to fig. 1. The device comprises: a fire-stopping cover [1], a shell [2], a heat-insulating material [3], an annular water container [4], a water distributor [5], a hot water outlet [6], a one-way valve [7], a pot [8], an air return pipe [9], a dust-proof net [10], an annular heat exchanger [11], a preheating pipe [12], a squirrel-cage steam generator [13], a three-way valve [14], a cylindrical combustion chamber [15], a water inlet pipe [16], an evaporator inlet pipe [17], a steam nozzle [18](8 nozzles are uniformly distributed with annular inner conical surfaces), a regulating valve [19], a three-way steering controlvalve [20], a water mixing valve [21], a cold water stop valve [22]and a shower nozzle [23], etc.

The device has the following parts: (1) the connection relation of the parts is described by the cold water trend. Cold water passes through a stop valve [22]→ a three-way steering control valve [20](the handle thereof is in a hot water stage position) → an inlet pipe [16]→ a three-way valve [14](the valve core thereof moves upwards to close a passage into the evaporator [13]→ a water inlet a → a hot water outlet f ' of the heat exchanger [11](the water running condition in the heat exchanger is a → a ' → b → b ' → c → c ' → d → d ' → e → e ' → f → f ') → a one-way distributor [7]→ water [5]→ inside the container [4]→ a hot water outlet [6]→ a water mixing valve [21]to a shower head [23]. (2) Cold water enters the squirrel-cage steam generator [13]through a stop valve [22]→ a three-way steering control valve [20](the handle of the three-way steering control valve is in a hot water gear closing position) → an adjusting valve [19]→ an evaporator water pipe [17]→ a preheating pipe [12]to generate steam; the steam is injected into the combustion chamber (15) from the pipeline to the nozzle (18). (3) The direction of the high-temperature hot gas backflow is shown by an arrow in fig. 1.

The working principle and the beneficial effect of the device are described by combining with the figure 1. The honeycomb briquette is not normally ignited, so that the water in the container [4]absorbs the transverse waste heat lost by the honeycomb briquette at every moment, namely the water in the container [4]keeps a higher temperature at any time, which is generally higher than 60 ℃. When people want to take a bath, the fire door cover [1]on the device is opened, and the operation is carried out according to the following steps.

Firstly, a three-way steering valve (20) on the device is turned]The handle is turned to the hot water gear position, the water mixing valve [21]]And regulating to a high temperature gear. Open tap water stop valve [22]]Cold water passes through a three-way steering valve [20]]And a pipe [16]Enters a three-way valve [14]](at this time, its inner valve core moves upward and closes to enter the squirrel-cage steam generator [13]]Water pipe passage, cold water can only enter heat exchange [11](ii) a When cold water stop valve [22]]Closed, three-way valve [14]]The valve core moves downwards due to the gravity, and then enters the steam generator [13]]Is communicated with a heat exchanger pipeline, a heat exchanger [13]]The residual water in the water tank can be quickly fed under the action of gravity and steam powerInto a steam generator [13]Internally generated steam passes through the nozzle [18]]Injection into combustion chamber lost), and then into heat exchanger [11]]From the water inlet a, hot water produced by it goes through the water outlet f' to the one-way valve [7]](check valve [7]]There are two functions: one of which passes through a heat exchanger [11]]The water keeps a certain pressure to improve the heat efficiency; secondly, when steam is required to be sprayed into the combustion chamber (15)]When inside, the cold water can more easily pass through the regulating valve (19)]And a preheating pipe [12]]Entering a squirrel-cage steam generator [13]Steam is generated in the steam generator, and the steam is sprayed by a nozzle (18)]Is injected into the combustion chamber [15]]Fully burn the honeycomb briquette ( (Combustion)) higher temperature, high temperature hot steam passing through heat exchanger [11]The heat efficiency can be improved. Whether steam is required or not is determined by the ambient temperature, and the regulating valve [19]is opened]And otherwise, closing. ) To a water dispenser [5]Into a container [4]]In the middle, hot water passes through a hot water outlet [6]]Water mixing valve [21]to bathroom]After the temperature is adjusted to be proper, the mixture passes through a shower nozzle [23]]The shower can be done.

The cold water stop valve [22]is closed without hot water. But the handle of the three-way steering valve (20) on the device is required to be restored to the original position, and the water mixing valve (21) is also turned to a high-temperature gear (no matter where the valve core of the water mixing valve (21) is located, the water in the container (4) is always in a normal-pressure heating state). The process is repeated as follows with the hot water being reused.

When cooking, the device can be used as a common honeycomb briquette stove without an air return device, and if the firepower is to be enhanced and hot water is not needed, the purpose can be achieved only by opening the cold water stop valve [22]and then adjusting the water inflow through the adjusting valve [19](at the moment, the hot water channel of the three-way steering valve [20]is in a closed state).

Claims (3)

1. The return air positive displacement honeycomb briquette water heater device for realizing shower by utilizing the waste heat of honeycomb briquette cooking and high-temperature hot gas reflux to quickly change cold water into hot water is provided with a unique combustion chamber (15) with a cylindrical upper part and a conical lower part, two overlapped devices, namely an annular heat exchanger (11) and a squirrel-cage steam generator (13) are sleeved outside the unique combustion chamber, and is characterized in that an annular water container (4), a heat insulating material (3) and a shell (2) are sleeved outside the two devices; a hot water outlet (6) on the water container (4) is connected with a water mixing valve (21) and a showernozzle (23) through pipelines; the other end of the water container [4]is connected with a water distributor [5], a one-way valve [7], a heat exchanger [11]and a three-way valve [14]and is connected with a three-way steering valve [20]and a cold water stop valve [22]through a pipeline [16]; one end of a squirrel-cage steam generator [13]which is sleeved outside the combustion chamber [15]is connected with a nozzle [18]through a pipeline, namely, the steam is sprayed into the combustion chamber [15]through the nozzle [18], and the other end of the squirrel-cage steam generator is connected with a preheating pipe [12], a pipeline [17], an adjusting valve [19]and a cold water stop valve [22]which are wound on the combustion chamber [15].

2. The apparatus of claim 1, characterized by an upper cylindrical, lower conical integral combustion chamber [15]having a nozzle [18]welded on its inner conical surface, the conical surface having a cone angle of 36-50.

3. The device as claimed in claim 1, wherein the annular water container (4) is welded with a return air interface at the middle part.

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