CN2859374Y - A solar water heater with pipe emptier - Google Patents

Abstract

The utility model relates to a solar water heater with pipe emptier comprising a water tank, an up-and-down waterpipe, a return pipe, an emptying tube, a floatable ball, a return valve and a return emptying general tube. The intake switch is set on the idoor end of the up-and-down waterpipe, a hot water outlet tube and a hot water switch are set on the up-and-down waterpipe above the intake switch, the up-and-down waterpipe bends into the inverse U shape on one end inside the water tank, the port is set under the water tank inner cavity, the emptying tube connects with the up-and-down waterpipe of the horizontal segment in the upper of the water tank inner cavity through the unidirectional commander valve, an emptying switch is set on the indoor end of the return emptying general tube, the return tube is set outside the water tank, one end connects with the emptying tube and the return emptying general tube, a return valve is set on the other end, the return valve is connected with the floatable ball. The utility model can conveniently and rapidly empty the water in the up-and-down waterpipe, not only settles the frozen and block problem of the oudoor segment of the up-and-down waterpipe in winter, but also efficiently saves the water resource and electricity and with a safe usage.

Description

A kind of solar water heater with pipeline exhausting device

Technical field

The utility model relates to a kind of solar water heater with pipeline exhausting device.

Background technology

At present, pick out two water pipes on the common solar water heater water tank, wherein one is to be used for to water tank water filling or the upper and lower conduit that outwards discharges water from water tank, another root is the return pipe that is used for observing cistern water level, does not have annexation between two water pipes, only has the relation of using, when last water, water tank water is full, and water is beamed back the full signal of water by the return pipe backwater.The shortcoming of this solar water heater is, in upper and lower conduit, and cold water abrim.When people need be when solar water heater be emitted hot water, at first want the cold water in the discharge piping, both lost time, waste water again, and than cold district, the water in outdoor section of the upper and lower conduit causes the blocking of upper and lower conduit road with freezing in the north, upper and lower conduit is also happened occasionally by the bursting by freezing phenomenon, causes water heater can not normally use winter.In order to prevent that the water-ice in the upper and lower conduit from freezing or water pipe from freezing crack, solar water heater can normally use winter, generally at the outdoor section apparatus electric-heating belt of upper and lower conduit, every meter of heating tape per hour power consumption is about 20W, and needing the device heating tape apart from the nearest water heater of roof overflow pipe is 1.5-2 rice, power consumption per hour is about 30-40W, water heater is far away more apart from overflow pipe, and used heating tape is long more, and power consumption is big more, and the possibility that electric leakage is arranged, the bathing safety that threatens people.

The utility model content

Technical problem to be solved in the utility model be propose a kind of can be easy, the solar water heater with pipeline exhausting device in fast evacuation upper and lower conduit road, antifreeze, the blocking of outdoor section of upper and lower conduit in winter have not only been solved, ensure that solar water heater is in the normal use in the north of severe cold, and it is safe in utilization, effectively restraining electricity consumption, the conserve water resource.

Technical scheme provided by the utility model is: a kind of solar water heater with pipeline exhausting device, include water tank, upper and lower conduit, return pipe etc., particularly, it also includes evacuated tube, ball float, backwater valve, the general pipe of backwater emptying, the indoor end of described upper and lower conduit is provided with taps, be provided with hot water outlet pipe and hot-water switch on the upper and lower conduit above the last taps, the end of upper and lower conduit in water tank bends to the inverted u-shaped shape, and port is positioned at the water tank cavity bottom; Described evacuated tube is connected by the upper and lower conduit of unidirectional command valve with the horizontal segment on water tank cavity top, and the evacuated tube other end is connected with general pipe of backwater emptying and return pipe vertically downward; The indoor end of the general pipe of described backwater emptying is provided with the emptying switch, and the other end is connected with evacuated tube and return pipe; Described return pipe is located at the water tank outside, and the general pipe of backwater emptying and the evacuated tube of an end and emptying switch top are connected, and the other end is provided with described backwater valve, and backwater valve is located at the bottom of water tank, and is connected with ball float in the water tank.

The utility model has following advantage: a kind of solar water heater with pipeline exhausting device of the utility model, can be easy, the water in the fast evacuation upper and lower conduit road, antifreeze, the blocking problem of outdoor section of upper and lower conduit in winter have not only been solved, ensure that solar water heater is in the normal use in the north of severe cold, and need on upper and lower conduit, not install heating tape, safe in utilization, effectively control electricity consumption; Backwater valve is located at water tank bottom, and installation, maintenance is convenient; Before water (hot water) closes to an end, open the emptying switch, be subjected to atmospheric pressure, by the general pipe of backwater emptying, evacuated tube, the hydraulic pressure in the upper and lower conduit is gone into the hot water that water tank and hot water outlet pipe make full use of upper and lower conduit inside.General solar water heater, when the user needs hot water, earlier the cold water of depositing in the upper and lower conduit is all emitted, just can go out hot water, the floor that the user lived is low more, and the cold water of going into to emit is many more, generally to emit 5-20 rice cold water (cold water that the floor difference is gone out does not wait), and the utlity model has the solar water heater of pipeline exhausting device, the cold water that only need emit about 3-4 rice when at every turn needing hot water gets final product, and has saved water resource.

Description of drawings

Fig. 1 is the solar water heater structure schematic diagram that the utlity model has pipeline exhausting device.

Wherein, 1-upper and lower conduit 2-hot water outlet pipe 3-hot-water switch 4-goes up the unidirectional command valve 12-of the general pipe 7-of taps 5-emptying switch 6-backwater emptying return pipe 8-backwater valve 9-water tank 10-ball float 11-evacuated tube

The specific embodiment

Below in conjunction with the description of drawings specific embodiment of the present utility model.

Referring to Fig. 1, have the solar water heater of pipeline exhausting device, include water tank 9, upper and lower conduit 1, return pipe 7, particularly, it also includes evacuated tube 12, ball float 10, backwater valve 8, the general pipe 6 of backwater emptying.Upper and lower conduit 1 in the water tank 9 is bent to the inverted u-shaped shape, and port is positioned at water tank 9 inner chamber bottoms.Evacuated tube 12 1 ends are connected with the upper and lower conduit 1 of the horizontal segment on water tank cavity top, evacuated tube 12 other ends vertically downward, be connected with return pipe 7, the general pipe 6 of backwater emptying, be that evacuated tube 12, return pipe 7, general pipe 6 three pipes of backwater emptying are connected, the general pipe 6 of backwater emptying is pipe dual-purpose pipe, i.e. " backwater ", " emptying ".In evacuated tube 12 junction with upper and lower conduit 1, add and put a horizontal unidirectional command valve 11, during last water, prevention water directly enters evacuated tube 12, the general pipe 6 of backwater emptying, in order to avoid can not normally go up water.It is emptying switch 5 that the indoor end of the general pipe 6 of backwater emptying is equipped with the same model valve, is used for air and upper and lower conduit 1 formation loop.Return duct 7 is located at water tank 9 outsides, and an end is connected with the general pipe 6 of the backwater emptying of emptying switch 5 tops, evacuated tube 12, and the other end is provided with backwater valve 8, and backwater valve 8 is located at the bottom of water tank 9, and is connected with ball float 10 in the water tank 9.

Using method of the present utility model is as follows:

Water on water tank 9, hot-water switch 3 is in closed condition before the last water, open emptying switch 5, open taps 4, running water injects water tank 9, when adding water and being in full state, ball float 10 is subjected to buoyancy of water, and backwater valve 8 is opened automatically, beams back the full signal of water, the water of prompting water tank is full, closes and closes taps 4.Ball float 10 when backwater valve 8 tops no longer is subjected to buoyancy of water, and at this moment, backwater valve 8 is subjected to the pressure automatic cut-off of water.

When using hot water, close emptying switch 5 and hot-water switch 3 before the use, open taps 4, taps 4 is closed in the pass after impelling the liter waterborne about 3-4 rice, opens hot-water switch 3 then, utilizes siphonage, hot water drainage in the water tank 9 to hot water outlet pipe 2, can be used hot water.

During emptying, open emptying switch 5, hot-water switch 3 (can use hot water closes to an end before), effect owing to the atmospheric pressure that come in by the general pipe 6 of backwater emptying, evacuated tube 12, the water of water tank 9 is no longer discharged, and the hot water part (sweep) in the upper and lower conduit 1 is pressed into water tank 9, a part is fully used, and the water in the upper and lower conduit 1 is drained.

Claims (1)

1, a kind of solar water heater with pipeline exhausting device, include water tank, upper and lower conduit, return pipe, it is characterized in that: it also includes evacuated tube, ball float, backwater valve, the general pipe of backwater emptying, the indoor end of described upper and lower conduit is provided with taps, on the upper and lower conduit above the last taps, be provided with hot water outlet pipe and hot-water switch, the end of upper and lower conduit in water tank bends to the inverted u-shaped shape, and port is positioned at the water tank cavity bottom; Described evacuated tube is connected by the upper and lower conduit of unidirectional command valve with the horizontal segment on water tank cavity top, and the evacuated tube other end is connected with general pipe of backwater emptying and return pipe vertically downward; The indoor end of the general pipe of described backwater emptying is provided with the emptying switch, and the other end is connected with evacuated tube and return pipe; Described return pipe is located at the water tank outside, and the general pipe of backwater emptying and the evacuated tube of an end and emptying switch top are connected, and the other end is provided with described backwater valve, and backwater valve is located at the bottom of water tank, and is connected with ball float in the water tank.