CN2589896Y

CN2589896Y - High level water feeding apparatus for solar water heater

Info

Publication number: CN2589896Y
Application number: CN02258798U
Authority: CN
Inventors: 张礼扬
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-13
Filing date: 2002-12-13
Publication date: 2003-12-03
Anticipated expiration: 2012-12-13

Abstract

The utility model relates to a high level water fetching device for solar energy water heaters. The utility model is provided with a water inlet, a water outlet and an air exchanging tube which are installed on a fixing seat at the bottom of a water tank. The upper end of the air exchanging tube is positioned at the inner upper part of the water tank, and the lower end of the air exchanging tube is communicated with the air outside the water tank. The high level water fetching device is also provided with an air bag and a hose. The upper end of the hose is connected with the air bag, and the lower end of the hose is connected with the water inlet and the water outlet. The air bag in the high level water fetching device is equivalent to a floating head, and the air bag is floated on the water surface inside the water tank of a solar energy water heater and drives the hose to be suspended in the water. When the water level in the water tank rises and falls, the air bag rises and falls following the water level, which ensures that the upper port of the hose is always positioned in the upper layer high temperature hot water, therefore, the high position hot-water can automatically flow out in advance at the time of water flowing out. The upper layer high temperature hot water in the water tank of the automatic-falling solar energy water heater is sufficiently used, and the use ratio of heat energy is considerably enhanced. The utility model has the advantages of simple structure, low cost and convenient use, and is suitable for various water pressure conditions.

Description

The high-order water fetching device of solar water heater

Affiliated technical field

The utility model relates to a kind of high-order water fetching device of using in the formula solar water heater water tank that falls into water certainly.

Background technology

At present, the intake-outlet of the formula solar water heater that falls into water certainly is positioned at the water tank downside or goes to the bottom, and its scavenge port generally is positioned at the water tank upside, also has to adopt straight pipe up and down by the water tank bottom ventilation in order to reduce the ventilation heat-energy losses.Simple from drowning formula cisten mechanism, cost is low, is suitable for multiple water pressure conditions, belongs to economic general product, and its shortcoming is that the temperature difference of levels water is bigger in the water tank, goes out lower floor's cold water during water outlet earlier, after go out upper strata hot water, use inconveniently, the heat energy utilization rate is not high.And top ability of swimming solar water appliance has last top water discharging device, complex structure, and the cost height to the stability requirement height of hydraulic pressure, only is applicable to the user that three floors are following.

In addition, freeze stifled even water pipe from freezing crack in order to prevent pipelines of solar water heater ponding in being managed severe winter, each water heater is finished using, need be with the ponding emptying in the pipeline.Existing commercially available product all installs magnetic valve or electrically operated valve additional in addition at the solar water heater water tank delivery port, during emptying work, closes this outlet valve, replenishes air to pipe from bypass, flows out ponding in the pipeline lower end, reaches the purpose of emptying pipeline.Its major defect is: 1, valve body is malfunctioning because of moisture easy freezing, 2, the shared easy generation incrustation scale of hot and cold water, valve body is malfunctioning because of incrustation scale, 3, the valve body long term exposure in adverse circumstances, easily because of wear out, oxidation, deteriorate malfunctioning.

Summary of the invention

Technical problem to be solved in the utility model is, overcomes the deficiencies in the prior art, provides a kind of solar water heater simple in structure, that cost is low, easy to use high-order water fetching device.

The technical problem that the utility model further will solve is that a kind of high-order water fetching device of solar water heater that can have the pipeline emptying concurrently is provided.

The technical scheme that its technical problem that solves the utility model adopts is as follows: the high-order water fetching device of a kind of solar water heater, have the intake-outlet and the scavenge trunk that are installed on the water tank bottom holder, the scavenge trunk upper end is positioned at the water tank internal upper part, the lower end is communicated with the water tank outer air, it is characterized in that also having air bag and flexible pipe, the flexible pipe upper end is connected with air bag, and the lower end is connected with intake-outlet.

The beneficial effects of the utility model are as follows: the air bag in the device is equivalent to a floating head, it floats on the interior water surface of solar water heater water tank, and the drive flexible pipe is suspended in the water, when the lifting of water tank middle water level, air bag is lifting thereupon also, guarantee that the flexible pipe upper port is arranged in the upper strata high-temperature-hot-water all the time, therefore high-order hot water can be gone ahead of the rest and flowed out automatically during water outlet, made full use of the formula solar water heater water tank high-temperature-hot-water at the middle and upper levels that falls into water certainly, the heat energy utilization rate improves greatly, and is simple in structure, and cost is low, easy to use, be applicable to multiple water pressure conditions.

Description of drawings

Fig. 1 is the high-order water fetching device structural representation of the utility model solar water heater.Number in the figure is: 1-air bag, 2-flexible pipe, 21-flexible pipe water absorbing nozzle, 3-scavenge trunk, 4-limit switch, 5-motor, 6-take-up drum, 7-pull rope, 8-transmission mechanism, 9-holder, 10-intake-outlet, 11-solar water heater water tank, the 12-water surface.

The specific embodiment

With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.

As shown in Figure 1, the high-order water fetching device of the utility model solar water heater has intake-outlet 10 and the scavenge trunk 3 that is installed on the water tank 11 bottom holders 9, top, lower end that scavenge trunk 3 upper ends are positioned at the water tank water surface 12 are communicated with the water tank outer air, also have air bag 1 and flexible pipe 2, flexible pipe 2 upper ends are connected with air bag 1, and the lower end is connected with intake-outlet 10.Among the embodiment, air bag and flexible pipe are manufactured by anti-nearly Baidu high temperature Celsius and nontoxic material, as long as air bag possesses airtight cavity, it is shaped as arbitrarily, flexible pipe 2 is on scavenge trunk 3, this moment, scavenge trunk also played a part to be the flexible pipe location of fluctuating, and made apparatus structure compact more, and the space that takies in the water tank is littler.Further also flexible pipe can be made the helix tube shape, assemble more convenient.Flexible pipe can also be made of alternate the fixedlying connected of several sections flexible pipes and hard tube, also meets the utility model to the flexible pipe performance demands.

As shown in Figure 1 further among the embodiment, utilize scavenge trunk 3 and flexible pipe 2, through further design, the usefulness that the utility model can also the emptying of double as pipelines of solar water heater.Concrete technical scheme is as follows: flexible pipe 2 upper port are connected with the upper end of a pull rope 7 that passes scavenge trunk 3 and controlled by electrical control mechanism, the pull rope electrical control mechanism comprises motor 5, transmission mechanism 8, limit switch 4, take-up drum 6, and the lower end of pull rope 7 is connected with take-up drum 6.When needing the emptying pipeline, the work of pull rope electrical control mechanism, drive take-up drum 6 rotary tightening pull ropes, with the upwards traction of flexible pipe 2 upper port, traction amplitude by limit switch 4 control pull ropes, in case the flexible pipe upper port is pulled out the water surface, the water in flexible pipe and the pipeline will prevent that winter, pipeline froze stifled or bursting by freezing because of gravity effect emptying automatically rapidly.By limit switch discharge pull rope when needing water intaking next time, the flexible pipe upper port returned immerse in the water, just can recover original high-order water intaking state.In order to make the flexible pipe upper port be convenient to back immerse after the pipeline emptying in the water, further feature is that flexible pipe 2 upper ends have water sucking mouth water absorbing nozzle 21 down.Therefore, it is one that the utility model can collect high-order water intaking, bottom ventilation, three kinds of functions of pipeline emptying, and solar water heater integrated performance is improved.

Claims

1, the high-order water fetching device of solar water heater, have the intake-outlet and the scavenge trunk that are installed on the water tank bottom holder, the scavenge trunk upper end is positioned at the water tank internal upper part, the lower end is communicated with the water tank outer air, it is characterized in that also having air bag and flexible pipe, the flexible pipe upper end is connected with air bag, and the lower end is connected with intake-outlet.

2, the high-order water fetching device of solar water heater according to claim 1 is characterized in that described flexible pipe is on scavenge trunk.

3, the high-order water fetching device of solar water heater according to claim 2 is characterized in that described flexible pipe is made into the helix tube shape.

4, the high-order water fetching device of solar water heater according to claim 2 is characterized in that described flexible pipe is made of alternate the fixedlying connected of several sections flexible pipes and hard tube.

5, according to claim 1 or the high-order water fetching device of 2 or 3 or 4 described solar water heaters, it is characterized in that described flexible pipe upper port passes scavenge trunk with one and be connected by the upper end of the pull rope of electrical control mechanism control, the pull rope electrical control mechanism comprises motor, transmission mechanism, limit switch, take-up drum, and the lower end of pull rope is connected with the take-up drum.

6, the high-order water fetching device of solar water heater according to claim 5 is characterized in that described flexible pipe upper end has water sucking mouth water absorbing nozzle down.