CN2760465Y

CN2760465Y - Anti-freezing arrangement for water pipe of solar water heater

Info

Publication number: CN2760465Y
Application number: CNU200520000134XU
Authority: CN
Inventors: 窦陆军
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-05
Filing date: 2005-01-05
Publication date: 2006-02-22
Anticipated expiration: 2015-01-05

Abstract

The utility model discloses an anti-freezing device for a water pipe of a solar water heater, which belongs to the technical field of a solar water heater. A circulating pipe is arranged in a water inlet pipe and/or a water outlet pipe of solar water heater, and a pipe opening at the upper end of the circulating pipe is positioned in a pipe opening at the upper ends/end of the water inlet pipe and/or the water outlet pipe. The upper part of the circulating pipe is provided with a heating pipe segment which is in a water storage tank, both ends of the heating pipe segment have height difference, a pipe opening at the lower end of the circulating pipe is positioned in the lower parts/part of the water inlet pipe and/or the water outlet. The structure of the anti-freezing device for a water pipe of a solar water heater is simple, the water inlet pipe and/or water outlet pipe are/is heated by heat in the water storage tank, and the heating by using electric energy is not needed; thus, the use is convenient, the damage is not easy and the cost is low.

Description

The water pipe anti-freezing device of solar water heater

Technical field

The utility model discloses a kind of water pipe anti-freezing device of solar water heater, belong to technical field of solar water heaters.

Background technology

Solar water heater is made up of solar vacuum heat-collecting pipe, storage tank, water inlet pipe, outlet pipe, ball-cock assembly etc., is surrounded by heat-insulation layer in storage tank, water inlet pipe and outlet pipe outside, is used for preventing thermal loss and prevents that water inlet pipe, outlet pipe from freezing.But,,,, can not prevent that water inlet pipe and outlet pipe from freezing in arctic weather as when not using solar water heater night in the use interval of solar water heater although on water inlet pipe and outlet pipe, be surrounded by heat-insulation layer in the colder area of weather.Prevent that at present the technology that water inlet pipe, outlet pipe freeze from being to be tied with heat tape on water inlet pipe and outlet pipe, when cold weather, utilize electric energy heating water inlet pipe and outlet pipe, prevent and freeze phenomenon.This technology can prevent that the water inlet pipe of solar water heater, outlet pipe from freezing, but adopts this technology, has increased the cost of solar water heater, in use will use power supply, brings inconvenience to the user, is not suitable for using at areas without electricity.

The utility model content

Problem to be solved in the utility model is not adopt Electric heating to prevent that the water inlet pipe of solar water heater and/or outlet pipe from freezing in cold snap.

The technical solution of the utility model is that a circulation pipe is housed in the water inlet pipe of solar water heater and/or outlet pipe, the upper end mouth of pipe of circulation pipe is at mouth of pipe place, the upper end of water inlet pipe and/or outlet pipe, the top of circulation pipe has one section to be heated pipeline section in storage tank, there is difference in height at the be heated two ends of pipeline section of this section, and the lower end mouth of pipe of circulation pipe is in the pipe of the bottom of water inlet pipe and/or outlet pipe.

The water pipe anti-freezing device of described solar water heater, the top of the circulation pipe in the water inlet pipe pipeline section that is heated is welded on the lateral wall of storage tank, the upper end mouth of pipe of circulation pipe inserts the upper port place of water inlet pipe, and the be heated lower end mouth of pipe of pipeline section of the top of circulation pipe inserts in the water inlet pipe.

The water pipe anti-freezing device of described solar water heater, the top of the circulation pipe in outlet pipe are heated, and pipeline section is oblique to be installed in the storage tank.

The water pipe anti-freezing device of described solar water heater, the top of the circulation pipe in the outlet pipe pipeline section that is heated is made of flexible pipe, and the upper port of flexible pipe is lifted under the ball float, and ball float is installed in the storage tank.

The water pipe anti-freezing device of described solar water heater, the lower end mouth of pipe of the circulation pipe in the outlet pipe extends in the tail end pipe of outlet pipe.

The water pipe anti-freezing device of the solar water heater that the utility model is realized has following advantage:

1. owing in the water inlet pipe of solar water heater and/or outlet pipe circulation pipe is housed, the top of circulation pipe is heated pipeline section in the storage tank of water heater, and the lower end mouth of pipe of circulation pipe is in the pipe of the bottom of water inlet pipe and/or outlet pipe.In the use of solar water heater, there is a certain amount of hot water in the storage tank, hot water in the storage tank has heated be heated water in the pipeline section of circulation pipe top, make wherein water and the water generates temperature difference in the pipe of circulation pipe lower end, under the effect of temperature difference, water in the circulation pipe moves upward, and flows out the upper end mouth of pipe of circulation pipe.At this moment the hot water that flows out from the circulation pipe of water inlet pipe enters the top of water inlet pipe, flow to the lower end of water inlet pipe then from the top of water inlet pipe, the cold water of water inlet pipe lower end enters in the pipe of circulation pipe lower end, forms the hot and cold water circulation, water inlet pipe is heated, has prevented freezing of water inlet pipe.Same reason, the hot water that flows out from the circulation pipe of outlet pipe enters storage tank, hot water in the storage tank then flows to effluent pipe mouth, flow to the lower end of outlet pipe then, the cold water of outlet pipe lower end enters in the pipe of circulation pipe lower end, the circulation of formation hot and cold water is heated outlet pipe, has prevented that outlet pipe from freezing.

The water pipe anti-freezing apparatus structure of the solar water heater that the utility model is realized is simple, uses heat heating water inlet pipe and/or outlet pipe in the storage tank, does not need the electric energy heating, thereby easy to use, not fragile, cheap, is fit to the use of areas without electricity.

2. owing to the circulation pipe in outlet pipe can extend in the pipe of outlet pipe tail end, the water of outlet pipe tail end is heated, therefore in use, the water of emitting from outlet pipe all is hot water, overcome when not having heater, after wanting earlier the cold water in the outlet pipe to be drained, just can emit the defective of hot water, bring convenience to the user.

Description of drawings

Fig. 1 is a kind of structural representation of water pipe anti-freezing device of solar water heater.

Fig. 2 is the structural representation of the water pipe anti-freezing device of second kind of solar water heater.

Fig. 3 is the structural representation of the water pipe anti-freezing device of the third solar water heater.

The specific embodiment

Embodiment 1

The structural representation of the water pipe anti-freezing device of the described solar water heater of present embodiment is seen shown in Figure 1.Solar water heater generally is made up of vacuum heat collection pipe, storage tank, water inlet pipe, outlet pipe, ball-cock assembly etc., only drawn the in the drawings relative section such as storage tank, water inlet pipe, outlet pipe of solar water heater, other parts such as vacuum heat collection pipe etc. partly omit and do not draw.

Be connected with water inlet pipe 2 and outlet pipe 3 on storage tank 1, in the upper port of water inlet pipe ball-cock assembly 4 be housed, the effect of water inlet pipe 2 is to replenish cold water in storage tank 1, and the effect of outlet pipe 3 is to user's hot-water supply.On the outer surface of storage tank 1, water inlet pipe 2 and outlet pipe 3, be surrounded by heat-insulation layer 5.

Circulation pipe 6 is housed in water inlet pipe 2, the top of circulation pipe 6 straight wall that pipeline section 7 passes storage tank 1 of being heated stands in the hot water of storage tank 1, the upper end mouth of pipe 8 of circulation pipe 6 passes the mouth of pipe place, upper end of water inlet pipe 2, the be heated lower end of pipeline section 7, the top of circulation pipe 6 penetrates in the water inlet pipe 2, the lower end mouth of pipe of circulation pipe 6 is in the pipe of the lower end of water inlet pipe 2, and the lower end mouth of pipe of circulation pipe 6 should be in the indoor not frozen pipe section of water inlet pipe 2.Straight line 11 expression boundary lines, house, on the straight line 11 expression outdoor, under expression indoor.

Circulation pipe 9 is housed in outlet pipe 3, the be heated mouth of pipe of pipeline section 10 of the top of circulation pipe 9 exceeds the mouth of pipe of outlet pipe 3, stand upright in the hot water of storage tank 1, the lower end mouth of pipe of circulation pipe 9 is in the pipe of the lower end of outlet pipe 3, and the lower end mouth of pipe of circulation pipe 9 should be in the indoor not frozen pipe section of outlet pipe 3.

In use, when water inlet pipe is not intake, have hot water in the storage tank 1, the top of the hot water heat cycles pipe 6 upright pipeline section 7 that is heated makes in the circulation pipe 6 water be heated and moves upward, flow out the upper end mouth of pipe 8 of circulation pipe 6, flow in the water inlet pipe 2, the water of water inlet pipe 2 lower ends enters the lower end mouth of pipe of circulation pipe 6, thereby forms hot water circuit in circulation pipe 6 and water inlet pipe 2, water inlet pipe 2 is heated, prevents that water inlet pipe 2 from freezing in cold snap.

Equally, in use, when outlet pipe 3 outwards during hot-water supply, the top of the hot water heat cycles pipe 9 in the storage tank 1 upright pipeline section 10 that is heated is heated water in the circulation pipe 9 and moves upward, and flows out the upper end mouth of pipe of circulation pipe 9, hot water in the storage tank 1 flows into outlet pipe 3, the water of outlet pipe 3 lower ends flows in the circulation pipe 9, thereby forms hot water circuit in circulation pipe 9 and outlet pipe 3, prevents that outlet pipe 3 from freezing in cold snap.

Embodiment 2

The structural representation of the water pipe anti-freezing device of the described solar water heater of present embodiment is seen shown in Figure 2, relative sections such as the storage tank 1 that only draws among the figure, water inlet pipe 2 and outlet pipe 3.

The structure of the water pipe anti-freezing device of the described solar water heater of present embodiment and embodiment 1 are described basic identical, difference is that the top of the circulation pipe 6 in the water inlet pipe 2 upright pipeline section 7 that is heated is welded on the lateral wall of storage tank 1, the top of the hot water in the storage tank 1 by the sidewall heat cycles pipe 6 of the storage tank 1 upright pipeline section 7 that is heated.The operation principle of this circulation pipe structure is identical with the operation principle of the circulation pipe 6 of embodiment 1 described water inlet pipe 2, is the heat that the circulation pipe 6 of this structure can be drawn the hot water in the storage tank 1 less, reduces heat exhaustion.

Another difference is that outlet pipe 3 is laterally to be connected with storage tank 1, and the top of the circulation pipe 9 in the outlet pipe 3 pipeline section 10 that is heated is oblique being installed in the storage tank 1.The operation principle of the circulation pipe of this structure is described identical with embodiment 1, and difference is easy for installation.

Embodiment 3

The structural representation of the water pipe anti-freezing device of the described solar water heater of present embodiment is seen shown in Figure 3, relative sections such as the storage tank 1 that only draws among the figure, water inlet pipe 2 and outlet pipe 3.

The structure of the water pipe anti-freezing device of the described solar water heater of present embodiment and embodiment 2 are described basic identical, difference is that the top of the circulation pipe 9 in the outlet pipe 3 pipeline section 10 that is heated is flexible pipes, its the upper end mouth of pipe be lifted on ball float 12 below, ball float 12 is installed on the sidewall of storage tank 1 by articulated linkage.Another difference is that the lower end mouth of pipe of circulation pipe 9 stretches in the outlet pipe 3 tail end pipes.

The operation principle of the circulation pipe of this structure is described identical with embodiment 1, and its advantage is that the top of circulation pipe 9 pipeline section 10 that is heated can change with the hot water water surface in the storage tank 1 and float, and the water in the circulation pipe 9 is heated well, is easy to circulate.

Another advantage is that the water in the tail end pipe of outlet pipe 3 also is heated, when user's opening installation during at the hot water tap of outlet pipe 3 tail ends or shower nozzle, the water that flows out is hot water, the defective of avoiding present solar water heater to put hot water just putting hot water after Shi Yaoxian emits the cold water in the outlet pipe 3, convenient for users.

Claims

1. the water pipe anti-freezing device of a solar water heater, it is characterized in that: in the water inlet pipe of solar water heater and/or outlet pipe, a circulation pipe is housed, the upper end mouth of pipe of circulation pipe is at mouth of pipe place, the upper end of water inlet pipe and/or outlet pipe, the top of circulation pipe has one section to be heated pipeline section in storage tank, there is difference in height at the be heated two ends of pipeline section of this section, and the lower end mouth of pipe of circulation pipe is in the pipe of the bottom of water inlet pipe and/or outlet pipe.

2. the water pipe anti-freezing device of solar water heater according to claim 1, so its feature also exists: the top of the circulation pipe in the water inlet pipe pipeline section that is heated is welded on the lateral wall of storage tank, the upper end mouth of pipe of circulation pipe inserts the upper port place of water inlet pipe, and the be heated lower end mouth of pipe of pipeline section of the top of circulation pipe inserts in the water inlet pipe.

3. the water pipe anti-freezing device of solar water heater according to claim 1, so its feature also exists: the top of the circulation pipe in outlet pipe is heated, and pipeline section is oblique to be installed in the storage tank.

4. the water pipe anti-freezing device of solar water heater according to claim 1, so its feature also exists: the top of the circulation pipe in the outlet pipe pipeline section that is heated is made of flexible pipe, and the upper port of flexible pipe is lifted under the ball float, and ball float is installed in the storage tank.

5. the water pipe anti-freezing device of solar water heater according to claim 1, so its feature also exists: the lower end mouth of pipe of the circulation pipe in the outlet pipe extends in the tail end pipe of outlet pipe.