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.
FIELD: water facilities, particularly water delivery devices.
SUBSTANCE: delivery device in accordance with the first embodiment comprises body, unfiltered liquid receiver, flexible pipeline, filtered liquid outlet, shuttle valve arranged inside the body, executive tool mechanically connected to shuttle valve and providing switching from unfiltered liquid distribution to filtered liquid distribution from delivery device, as well as filter arranged in the body. Device in accordance with the second embodiment comprises body, unfiltered liquid receiver, flexible pipeline, filtered liquid outlet, unfiltered liquid outlet and shuttle valve arranged inside the body. The shuttle valve provides choice of liquid flow through filtered liquid outlet or unfiltered liquid outlet. Delivery device also has executive tool mechanically connected to the shuttle valve and providing switching from unfiltered liquid distribution to filtered liquid distribution from delivery device. Arranged in the body is filter. Device in accordance with the third embodiment comprises body, unfiltered liquid receiver, filtered liquid outlet, unfiltered liquid outlet and one shuttle valve arranged inside the body. The shuttle valve provides choice of liquid flow through filtered liquid outlet or unfiltered liquid outlet. Delivery device also has the first executive tool mechanically connected to the shuttle valve and the second executive tool mechanically linked with the valve. Device includes filter arranged in the body.
EFFECT: possibility to create water facilities adapted to be used in living or office spaces to selective serve filtered or unfiltered water to consumer, reduced occupied space when used with water tap connected to conventional water basin.
32 cl, 15 dwg
FIELD: machine construction.
SUBSTANCE: invention relates to waterworks and can be used for filling wagon tanks with water. The valve contains a four-link motion mechanism, one link which due to the case (10) with a covered outlet is fixed to the pipe (14), and the other made in the form of a throttle (2), through the beam (12) interacting with the piston placed in the body (9). The piston end interacts with a plunger (7), connected with spring (6), and fixed on one of the moving elements of four-link motion mechanism.
EFFECT: simplification of the design.
8 cl, 2 dwg
SUBSTANCE: adjusting device is made with possibility of connection to forcing and output manifolds. It contains a flow controller with variable flow parametres, drive of the flow controller, locking device, set parallel to the flow controller and system of control of output parametres of the controller and maintaining them within preset limits. Whereat locking device is presented by, at least, one shutter flow parametres whereof are divisible by the value of flow parametres of the flow controller. System of control allows combination of flow characteristics of shutters and flow controller, selected on terms of security of continuous nature of controlling of output parametres.
EFFECT: reliability and reduced power consumptions.
2 cl, 2 dwg
FIELD: measuring engineering.
SUBSTANCE: turbine flow meter has housing with a measuring passage, turbine, coil block for sensing, and generator.
EFFECT: enhanced efficiency.
3 cl, 2 dwg
FIELD: measurement technology.
SUBSTANCE: flowmeter-counter has casing made of part of pipe-line and jet self-excited oscillator provided with jet oscillation sensor mounted in by-pass channel. Through channel of pipe-line has converging member. Edge of converging member is faced to flow and has groove which forms through ring-shaped slit. Supply channel of jet self-excited oscillator opens to the ring-shaped slit. Output channel of self-excited oscillator is connected with narrow part of converging member. Depth of ring-shaped slit is equal or deeper than diameter of supply channel of jet self-excited oscillator. Area of ring-shaped slit equals or is bigger than cross-section area of supply nozzle of self-excited oscillator. Straight parts of paths ahead and behind the point where flowmeter-counter is installed are not necessary.
EFFECT: higher precision of measurement.
FIELD: measuring technique.
SUBSTANCE: the invention presents a method for definition of a fluid stream rate, is dealt with the field of measuring technique. The method provides for visualization of a flow structure and definition of a fluid stream rate by a rate of transportation of marks irregularly existing on the visualized plotting. Visualization of a stream structure is realizes with the help of the infrared imager using formation of a thermal image based on infra red emission of the stream surface. The method provides for registration of the existing on the stream surface local fields of natural fluctuations of temperature in respect to its background value and on the produced thermal image marks by contour lines the zones with a characteristic temperature relief formed by the local fields. The rate of the stream is determined by local speeds of motion in direction of the stream movement of the contours points of these zones occupying different transversal positions on the stream thermal image of the surface of the stream. The technical result is increased accuracy of definition of the fluid stream rate with a displaced field of speeds.
EFFECT: the invention ensures increased accuracy of definition of the fluid stream rate with a displaced field of speeds.
FIELD: experimental gas dynamics.
SUBSTANCE: reciprocal piston is placed inside air-tight working cylinder (working chamber) in such a manner that two working cavities are formed above and beneath the piston. Cavities communicates with each other through slit channel. Instant values of current values of pressure P, gas temperature T, geometrical volume V of working cavity and through cross-section area f of slit channel are measured in small equal time gaps Δτ. Mass consumption M of gas is calculated from measured values P, V, T and Δτ. Instant consumption factor α is calculated from relation which includes current values of area f and variable pressure P at the entrance and exit of slit channel for any preset measurement.
EFFECT: improved precision of measurement.
FIELD: measurement technology; heat supply systems for metering heat fluxes of liquid or gas.
SUBSTANCE: proposed sensor designed for measuring heat flux of energy carries having various compositions and temperatures has signal coil as well as thermal element, first support of turbine shaft, turbine, reset spring, and second support of turbine shaft, all mounted in tandem on turbine shaft. Thermal element is made in the form of case filled with working medium and accommodating bellows. One end of turbine shaft is inserted in thermal-element bellows. Turbine is made in the form of bladed wheel whose rim carries permanent-magnet inserts and is mounted in sleeve bearing. Power coil is disposed so that magnetic field of permanent-magnet insert crosses its circuit.
EFFECT: enhanced reliability and measurement accuracy, enlarged functional capabilities.
1 cl, 4 dwg
FIELD: measurement technology; measuring velocity of single-phase laminar and turbulent flow of liquid.
SUBSTANCE: proposed method includes pulsed power delivery from ac power supply to metering thermocouple junction; heating of metering thermocouple junction; measurement of power N and pulse time τ; measurement of junction temperature on descending section of Tj = f(τ) curve; evaluation of junction cooling rate on descending branch of Tj = f(τ), m = -(dTj/dτ)/(Tj - Tl) curve, where Tj and Tl are junction and liquid temperatures, respectively; calculation of heat-transfer coefficients αas and αdes from dependencies αdes = mcρV/F and αas = N/F(Tj - Tl), where F is junction surface; V is junction volume; c and ρ are thermal capacity and density of junction material, respectively; calculation of mean value of heat-transfer coefficient αm = (αas + αdes)/2; calculation of liquid flow velocity W from W = f(αm ) dependence; pulse time τm is chosen from condition of regular junction heating time τr, τm ≥ τr found from condition that mas = -(dTj/dτ)/(Tj - Tl) = idem with time.
EFFECT: enhanced flow velocity measurement accuracy.
1 cl, 3 dwg