CN101566399A

CN101566399A - Water-saving anti-freezing apparatus for solar heater pipe

Info

Publication number: CN101566399A
Application number: CNA2009101304060A
Authority: CN
Inventors: 李明知
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-03
Filing date: 2009-04-03
Publication date: 2009-10-28

Abstract

The invention provides a water-saving anti-freezing apparatus for solar heater pipe, comprising a water tank, an upper and a lower water pipe and a gas injection pipe. The apparatus is characterized in that a U-shaped bent pipe is provide in the apparatus, having the top portion thereof communicating with the lower end of an air injection uni-direction valve; one end of the U-shaped bent pipe extends to the bottom of the water tank, and the other end communicates with the upper end of a water supply and drainage pipe; the lower end of the water supply and drainage pipe communicates with a cross joint having other ends communicating with a water inlet valve, a water outlet valve and the lower end of a air pumping uni-direction valve; the upper end of the air pumping uni-direction valve communicates with an air extraction cylinder; one end of the air injection pipe communicates with the upper end of the air injection uni-direction valve, and the other end communicates with the control valve. Applying the structure, the water-saving anti-freezing apparatus is capable of discharging residual water in the water pipe, preventing freezing of the water pipe and operation failure due to scale, has extremely evident water-saving effect, consequently the apparatus is especially suitable for application on solar water heater in highly cold and highly water hardness region.

Description

Water-saving anti-freezing apparatus for solar heater pipe

Technical field

The present invention relates to a kind of water pipeline control device, be specifically related to a kind of water-saving anti-freezing apparatus for solar heater pipe.

Background technology

In recent years, along with social progress and constant development of economy, people's living standard significantly improves, and the awareness of saving energy of family is also more and more stronger, and also obtaining of solar water heater is universal rapidly.Traditional solar water heater is after use, and all surplus water of having a surplus is equipped with thermal insulation casing though pipe is outer in its downcomer, all need discharge many cold water when reuse water heater the winter of cold, causes the serious waste of water resource; And at extremely frigid zones, it is stifled that drainage pipeline also occurs freezing through regular meeting, brings inconvenience to daily life.At present, also there is solar water heater to utilize magnetic valve to cooperate, makes surplus water emptying in the downcomer, but easily cause magnetic valve malfunctioning because of scale problems in the high hardness water source region with blow-down pipe.Along with improving constantly that everybody energy-saving and environmental protection are realized, the surplus water of the downcomer of solar water heater is difficult for discharging, and has become problem demanding prompt solution

Summary of the invention

The objective of the invention is to overcome the not evacuable shortcoming and defect of the surplus water of existing in prior technology water heater downcomer, a kind of water-saving anti-freezing apparatus for solar heater pipe is provided.Can either make things convenient for surplus water in the emptying downcomer, again can be because of high hardness water scale effect result of use.

For achieving the above object the technical solution used in the present invention: comprise water tank, upper and lower conduit and air injection pipe, it is characterized in that: ∩ shape bend pipe is arranged in the device, and the top of ∩ shape bend pipe is communicated with the lower end of air injection uni-direction; One end of ∩ shape bend pipe extend into water tank bottom, and the other end is communicated with the upper end of upper and lower conduit; The lower end of upper and lower conduit is communicated with four-way, and other port of four-way is communicated with the lower end of water intaking valve, outlet valve and the check valve of bleeding respectively; The bleed upper end of check valve is communicated with pump bowl; One end of air injection pipe is communicated with the upper end of air injection uni-direction, and the other end is communicated with control valve.

The interior heavy ball of check valve of bleeding is the spheroid of proportion greater than water, closes check valve by gravity.

Ball float in the air injection uni-direction is the spheroid of proportion less than water, closes check valve by buoyancy of water.

The installation of the ∩ shape bend pipe on the upper and lower conduit, the water level in the high water tank of circular arc portion on should making.

∩ shape bend pipe (3) can be contained in the water tank, also can be contained in outside the water tank.

The invention has the beneficial effects as follows: can make things convenient for surplus water in the emptying downcomer, anti-antipriming pipe freezes stifled, has prolonged the service life of pipeline; In the high-hardness water area applications, can operating trouble not appear because of incrustation scale yet; Be specially adapted to extremely frigid zones, each use can using water wisely 3～5 kilograms, the water-saving result highly significant.

Description of drawings

Fig. 1 is design principle figure of the present invention;

Fig. 2 is the profilograph of check valve of bleeding among Fig. 1;

Fig. 3 is the profilograph of air injection uni-direction among Fig. 1.

In the accompanying drawing: 1. upper and lower conduit, 2. air injection pipe, 3. ∩ shape bend pipe, 4. four-way, 5. water intaking valve, 6. outlet valve, 7. pump bowl, the check valve of 8. bleeding, 9. air injection uni-direction, 10. control valve, 11. depression bars, 12. springs, 13. pistons, 14. heavy ball, 15. ball floats.

The specific embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, this water-saving anti-freezing apparatus for solar heater pipe comprises water tank, upper and lower conduit 1 and air injection pipe 2.The ∩ shape bend pipe 3 of in water tank, packing into, the top of ∩ shape bend pipe is communicated with the lower end of air injection uni-direction 9; One end of ∩ shape bend pipe extend into water tank bottom, and the other end is communicated with the upper end of upper and lower conduit 1; The lower end of upper and lower conduit is drawn outside the water tank and is communicated with four-way 4, and other port of four-way is communicated with the lower end of water intaking valve 5, outlet valve 6 and the check valve 8 of bleeding respectively; The bleed upper end of check valve is communicated with pump bowl 7; One end of air injection pipe 2 is communicated with the upper end of air injection uni-direction 9, and the other end is drawn outside the water tank and is communicated with control valve 10.The check valve 8 of bleeding is to close downwards by the gravity of heavy ball spool, upwards opens by the power of bleeding of piston 13; Air injection uni-direction 9 is by water the lift of ball float upwards to be closed, and falls by the ball float self gravitation and opens; The installation site of the ∩ shape bend pipe 3 on the upper and lower conduit 1 should make the water level in the high water tank in its top.

The operation principle of this water-saving anti-freezing apparatus for solar heater pipe is such:

Before using solar water heater, be that emptying is anhydrous in the upper and lower conduit 1.Earlier depression bar 11 is pressed into the end, by spring 12 depression bar 11 is slowly upspring then, drive piston 13 and move upward and bleed, heavy ball 14 moves upward and opens the check valve 8 of bleeding, negative pressure of vacuum with the water in the water tank in ∩ shape bend pipe suction upper and lower conduit 1; Open outlet valve 6, the hot water in the water tank is continuously outflowed by siphonage.

In water heater used, ball float 15 upwards rose by buoyancy of water, makes air injection uni-direction be closed condition.Before water heater uses end, open control valve 10 earlier, ball float 15 falls under the atmospheric pressure effect, air injection uni-direction 9 is opened, air constantly replenishes through air injection pipe 2 and enters in the upper and lower conduit 1, and the surplus water in the upper and lower conduit is all discharged from outlet valve 6, closes outlet valve 6 and control valve 10.

Claims

1, a kind of water-saving anti-freezing apparatus for solar heater pipe comprises water tank, upper and lower conduit (1) and air injection pipe (2), it is characterized in that: ∩ shape bend pipe (3) is arranged in the device, and the top of ∩ shape bend pipe is communicated with the lower end of air injection uni-direction (9); One end of ∩ shape bend pipe (3) extend into water tank bottom, and the other end is communicated with the upper end of upper and lower conduit (1); The lower end of upper and lower conduit (1) is communicated with four-way (4), and other port of four-way is communicated with the lower end of water intaking valve (5), outlet valve (6) and the check valve of bleeding (8) respectively; The bleed upper end of check valve is communicated with pump bowl (7); One end of air injection pipe (2) is communicated with the upper end of air injection uni-direction (9), and the other end is communicated with control valve (10).

2, water-saving anti-freezing apparatus for solar heater pipe according to claim 1 is characterized in that: the heavy ball (14) in the check valve of bleeding (8) is closed check valve for the spheroid of proportion greater than water by gravity.

3, water-saving anti-freezing apparatus for solar heater pipe according to claim 1 is characterized in that: the ball float (15) in the air injection uni-direction (9) is closed check valve for the spheroid of proportion less than water by buoyancy of water.

4, water-saving anti-freezing apparatus for solar heater pipe according to claim 1 is characterized in that: the upper end circular arc portion of the ∩ shape bend pipe (3) on the upper and lower conduit (1) is higher than the water level in the water tank.

5, water-saving anti-freezing apparatus for solar heater pipe according to claim 1 is characterized in that: ∩ shape bend pipe (3) can be contained in the water tank, also can be contained in outside the water tank.