Water meters combined with valve

 

(57) Abstract:

The invention relates to appliances for metering hot and cold water. The device consists of a body of water meters, combined with the valve body, impeller, connected the drive with a counting mechanism, the housing of the meter is made of a nonmagnetic material, the valve body is made in the form of the transition of the cross, and the impeller is made verticallines, allowing her combination as in macromodel embodiment, and the magnetic coupling. The counting mechanism is provided with an additional pair of gears that allows you to increase the size of the limbs. The meter has an additional magnetic transfer of the arrows limbs. The technical result is to reduce the cost of water meters and ease of installation in existing networks, the readability. 8 Il.

The water meter is combined with the valve relates to appliances for metering hot and cold water.

Manufactured counters, such as counter VCOS plant Vodopribor", in which the counting mechanism is driven from the impeller through the magnetic coupling has a high cost, expensive tie, not always possible in ayvani in low-light scenes places of installation of the meter.

The counters are driven by the impeller described in the book the authors Lobacheva P. C. and Sheveleva F. A. "Flow meters for water supply and Sewerage", M, 1985 disadvantage of the known devices of the impellers is their low sensitivity at low flow rates due to its inertia and friction in the support, so they are used in larger diameter pipes.

The closest analogue of the claimed invention is a water meter with counter, consisting of a body of water meters, combined with the valve body and impeller associated drive with a counting mechanism (patent DE 380530, G 01 F 1/00, 10.09.23).

An object of the invention is to reduce the cost and ease of installation in existing networks, the readability.

The problem is solved in that the water meter is combined with a valve consisting of a body of water meters, combined with the valve body and impeller associated drive with a counting mechanism, the casing of the meter is made of a nonmagnetic material, the valve body is made in the form of the transition of the cross, and the impeller is made vertical, allowing the combination as in macromodel embodiment, and the magnetic coupling, the counting mechanism snapitnow transfer the arrows limbs.

Water meters, combined with a valve, is identical with the standard valve Assembly length and thread. The device of the water-meter combined with a valve allows you to release it in dry dial counter mechanisms (with a counting mechanism, isolated from water) driven through the magnetic coupling as in cheaper macromodel version (with mechanism, not isolated from the water), which transfer to the limbs is magnetic. In the described macrocode embodiment, the counting mechanism is enclosed in a sealed rugged housing made of non-magnetic material, the panel serves as the upper outer plane of the hull, which caused the limbs and arrow set. Rotation is transferred to the arrow magnets is located on the wheel gears under the panel with the limbs. The increase of limbs achieved by using an additional pair of gears, allowing the use of a limited area of the panel more efficiently.

The water meter is combined with the valve is vertical impeller, which, unlike vertical impellers described in the book Lobacheva P. C. and Sheveleva F. A. "Flow meters for water supply and Sewerage", M, 1985, has a low inertia, allowing it is: the impeller is of the form cylinder, the spiral blades are made in the form of multiple threads of a special profile, the impeller is made of light alloy and has voids, United buoyancy and reduces the load on the support. Ferrule, which rotates the impeller has an inlet window, directing the flow tangentially to the circumference of the impeller, while the dynamic action of the flow in the plane of the blades in the upper part has a very similar effect on the impeller, a secondary dynamic action occurs when turning the flow down the spiral blades. The arrangement of the blade around the circumference of the impeller increases the shoulder torque. Some loss of pressure due to the complex flow path for residential use of water meters is not significant.

The device of the water-meter is illustrated by drawings.

In Fig. 1 shows a water meter is combined with the valve. The meter contains a special valve housing 1 in the form of the transition cross tube 2, the lower end of which serves as a valve seat of the valve, a yoke 3, a support 4 of the impeller, the impeller 5, the Cup 6, the actuator 7 of the meter, the meter case hardened of a nonmagnetic material 8, the input window with oblique slices vertically 9, the output window 10.

In Fig. 2 shows the wiring.

In Fig. 3 - panel limbs, where the limb 13 to control the accuracy in operation, the limb indications for DN 15 to 10 m314, the limb readings at 100 m315, limb readings at 1000 m316.

In Fig. 4 shows the counting mechanism, where 7 - totalizer drive, 8 - case totalizer, 25 - protective glass. Gear pair 17, plus a pair of gears 18, the magnet 19 and the recess of the limb 20 is shown conventionally.

In Fig. 5 shows a view of the counting mechanism along a-A. the Output of the control limb 21 to the wheel 13, the output of the limb 14, the output 23 to the wheel 15, the output 24 to the limb 16.

In Fig. 6 shows a scan of the counting mechanism.

In Fig. 7 shows the ferrule 3.

In Fig. 8 shows an input window 9, the plane of the spiral 26, a notch above the coil 27.

The device operates as follows.

Water from the valve body 1 which surrounds the tube 2, the holder 3 through the openings 9, the impeller 5, box 10, the tube 2 is output from the valve 1. Round window 9 located around the circumference of the casing 3, are vertically beveled edge for rounding flow and uniform loading of the impeller 5, the wear resistance of the bearings is higher than that of the impeller, as there is no side load.Water meters combined with a valve consisting of a body of water meters, combined with the valve body and impeller associated drive with a counting mechanism, characterized in that the casing of the meter is made of a nonmagnetic material, the valve body is made in the form of the transition of the cross, and the impeller is made vertical, allowing the combination as in macromodel embodiment, and the magnetic coupling, the counting mechanism is provided with an additional pair of gears that allows you to increase the size of the limbs, and the counter has an additional magnetic transfer of the arrows limbs.

 

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