CN2129854Y

CN2129854Y - Special floating ball for automatic drain hot water box

Info

Publication number: CN2129854Y
Application number: CN 92215736
Authority: CN
Inventors: 高和平
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-20
Filing date: 1992-06-20
Publication date: 1993-04-14
Anticipated expiration: 2002-06-20

Abstract

The utility model relates to a special float ball for a self-draining hot water tank with the function of pressure regulating for self-draining, comprising an air-pressure balance duct (3), a hollow ball body (1) and a mounting tube (5). The special float ball is characterized in that the top of the hollow ball body is provided with the air-pressure balance duct capable of self draining. Thus, the utility model can keep the relative balance between air pressure inside the float ball and air pressure outside the float ball, reduce cracks caused by the heated and cooled weld zones of the ball body, prolong the service life of the float ball (increased by scores of times than the original general hot water tank) and has convenient fabrication.

Description

Special floating ball for automatic drain hot water box

The utility model relates to industry, the plumbing of domestic hot water case.

The water tank ball float that uses in existing industrial hot water tank and hotel, the domestic hot-water's case is the ball float of the general same structure of using in cold-water tank.This ball float uses in cold-water tank, and because of hot difference is very little, it is steady relatively that water temperature changes, and the catch a cold influence of thermal change of ball float is less, so working life is also longer relatively.But when this ball float used in hot water tank, because cold and hot difference is big in the water tank, water temperature changed greatly, so ball float is subjected to the variation of the temperature difference and the influence that expansion coefficient changes, often damaged, and renewed ball float.Ball float is the hermetically sealed spheroid of making of sheet copper, when the hot water tank temperature raises, be subjected to it to influence the interior air expansion of spheroid, pressure increases, when water temperature reaches 100 when spending, the pressure in the spheroid can increase about 1.35 times when winter, produced the crack so make the ball float pressurized, breach is the easiest to be occurred at the spheroid weld, and the interior expansion gas of ball this moment releases from the crack until equating with ambient pressure; When the hot water of hot water tank used up, ball float descended, and water cuts down to be opened cold water and flow into water tank in a large number, and ball float is swashed by cold water, air contraction in the spheroid, so just have part cold water to be inhaled in the ball float, when the water in the spheroid when a certain amount of, ball float will loss of buoyance.When the ball float loss of buoyance, water cuts down with regard to out of hand and discharges water in a large number always.Change ball float as untimely discovery, a large amount of water will overflow water tank, and this has not only wasted water resources, but also can make damage of building, and influence is normal produces and life, makes everyway impaired.

The utility model design is the defective that has ball float now for solving, and designs the special-purpose ball float of a kind of new hot water tank, and when spheroid was heated, gas will be discharged from the air pressure balance conduit, makes pressure and the air pressure outside the spheroid in the spheroid keep balance.

The technical solution of the utility model is to open an aperture in the upper end of common hot water tank ball float, by adorning an air pressure balance conduit made from copper tube, it is semi-circular that the upper end of air pressure balance conduit becomes, lower end mouth and ball float bottom differ 2m/m to 3m/m, squeegee in the welding of the joint of ball float top and air pressure balance conduit with soldering, make its sealing.When spheroid was heated, gas will be discharged from the air pressure balance conduit like this, the protection unlikely pressurized of spheroid weld seam and breaking; when spheroid is swashed by cold water; outside air can replenish into from the air pressure balance conduit, makes the inside and outside pressure relative equilibrium of spheroid, prolongs the working life of ball float.Even ball float has been grown when causing a small amount of seepage of soldered service time, when ball float is heated, the infiltration meeting pressurized in the ball and outside balance pipe is discharged ball float, make ball float keep normal buoyancy.

The utility model has the advantages that; make easy; need not change original technology; need only be by adorning a balance pipe; just can prolong the working life (tens times of comparable original growths) of ball float; thereby prolonged the normal service time of hot water tank greatly, reached protection check man's the physical and mental health and the purpose of conserve water resource.

The utility model is embodiment describe in conjunction with the accompanying drawings:

Fig. 1, be structural drawing of the present utility model;

Fig. 2, be the profile of ball float.

Strike out two halves circular ball bodies (1) with sheet copper, limit with two hemispheres is crimped on together then, with soldering squeegee (2), an adapter (copper tube) (5) is installed in the hole that stamps out in advance in the middle of the ball both sides squeegees with the soldering welding, take over one and mill out fixedly cotter way (4), can cut down controlling rod with the hot water tank row switch joins, load onto the air pressure balance conduit (3) that copper tube is made in ball top boring perpendicular to cotter way, conduit bottom is apart from 2M/M-3M/M place, spheroid bottom, promptly become one complete from draining hot water tank special use ball float.

Claims

1, a kind of by air pressure balance conduit (3), hollow spheroid (1), mounting pipe (5) form from draining regulate the pressure function from the special-purpose ball float of draining hot water tank, it is characterized in that a self-draining air pressure balance conduit of energy (3) is installed at hollow spheroid top.

2, according to claim 1ly it is characterized in that from the special-purpose ball float of draining hot water tank the base bleed, the mouth of a river of air pressure balance conduit (3) are apart from 2m/m---3m/m place, hollow spheroid bottom.