CN103345866A - T-shaped monomer perpendicular jet flow momentum gauge - Google Patents

Abstract

The utility model relates to a T-shaped single vertical jet flowmeter, which relates to the technical field of hydraulics. The upper part of the water storage tank of the present invention is arranged with a vertical jet mechanism, the vertical jet mechanism includes a vertical jet tube arranged inside the water storage tank, the water inlet of the vertical jet tube is connected with the pressure stabilizing pump, and the water outlet of the vertical jet tube is arranged with a symmetrical curved plate, The water outlet of the vertical jet pipe and the symmetrical curved panel are arranged in the jet box, and the junction of the water storage tank and the jet box is provided with a jet box drain; the upper end of the jet box is arranged with a T-shaped joint vertical bar, and the T-shaped joint vertical bar The upper end of the T-shaped single-joint vernier scale is arranged, and the T-shaped single-joint vernier scale is respectively arranged with a moving weight, a fulcrum, and an adjustment tour code. The invention realizes the design of vertical jet and single fulcrum structure, and the main body of the force measuring structure adopts a single structure design in which vertical rods are vertically connected with horizontal rods, the structure is simple, and the purpose of avoiding error superposition and transmission is avoided.

Description

A T-shaped monomer vertical jet flowmeter

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technical field

The present invention is a T-shaped monolithic vertical jet flow meter designed for the changes in the section kinetic energy, flow velocity direction, and reaction force of the water body in the plate when the water flow in the pipe shoots to the symmetrical curved plate. It belongs to the field of hydraulic technology.

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Background technique

There are two ways to display and measure the impact force on the curved plate when the water flow in the tube shoots to the symmetrical curved plate. One is the commonly used horizontal jet force measurement method. With this design, the measured impact force is physically The definition of the concept is fuzzy; the other is the concatenated force-measuring structure of the vertical jet flowmeter that is currently in use, adopts the vertical jet method, and has a clear definition of the physical concept. However, this force-measuring structure adopts the design of two fulcrums (concatenated structure), the design is too complicated, it has superimposed errors in the transmission and transfer of force, and it is not ideal in force measurement accuracy and performance, so there are deficiencies in the existing technology.

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Contents of the invention

The purpose of the present invention is to provide a vertical jet flow and a single fulcrum structure design. The main body of the force measuring structure adopts a single structure design in which a vertical bar is vertically connected to a horizontal bar. instrument.

In order to achieve the above object, the present invention adopts the following technical solutions:

A T-shaped single vertical jet flowmeter, comprising a water storage tank, a pressure stabilizing pump connected to the water storage tank, a vertical jet flow mechanism is arranged on the upper part of the water storage tank, and the vertical jet flow mechanism includes a vertical jet flow tube arranged inside the water storage tank, The water inlet of the vertical jet pipe is connected with the pressure stabilizing pump, and the water outlet of the vertical jet pipe is arranged with a symmetrical curved panel. The jet box drain port; the upper end of the jet box is arranged with a T-shaped joint vertical rod, and the upper end of the T-shaped joint vertical bar is arranged with a T-shaped single-joint vernier. Adjust the running code.

The present invention adopts the above-mentioned technical scheme, and has the following advantages compared with the prior art: the structure of the device of the present invention is composed of three parts: a water supply part, a vertical jet mechanism and a T-shaped single-unit force-measuring mechanism. In the water supply part, a water storage tank, a pressure stabilizing pump, a jet tube and a flow meter are set. The working mechanism: the pressure stabilizing pump makes the water in the water storage tank flow at the outlet of the jet tube at a constant pressure with a certain head, and the flow meter on the jet tube measures the flow in the tube. . In the part of the vertical jet mechanism, the outlet of the jet tube, the symmetrical curved plate and the drain are set. The working mechanism: through the vertical jet, the resultant force of the force on the curved plate projected horizontally is zero. In the T-shaped single-joint force measuring mechanism, a T-shaped single-joint vernier ruler, a moving weight, a fulcrum, a leveling floating code, a T-shaped single-joint vertical rod, and a symmetrical curved panel are set. The working mechanism: through the leveling of the floating code, To balance the initial equilibrium state of the T-shaped single-joint force-measuring mechanism, rely on the moment generated by the moving weight on the fulcrum, and balance the moment generated by the impact force of the vertical jet on the curved plate on the fulcrum. The advantages of the present invention are: simple structure, clear physical concept, changing the ambiguity of the previous horizontal jet force measurement. In terms of transfer, force measurement accuracy and performance, it is superior to the current multi-unit force measurement structure of the vertical jet flow meter. The cost of the momentum meter is low, and it is suitable for middle school popular science education and hydraulic experiment teaching in water conservancy research institutions.

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Description of drawings

Fig. 1 is a kind of structure diagram of the present invention.

Among them: 1. Water storage tank, 2. Moving weight, 3. T-shaped single-joint vernier ruler, 4. Jet box, 5. Jet box drain, 6. Fulcrum, 7. T-shaped single-joint vertical rod, 8 , flow meter, 9, leveling swimming code, 10, symmetrical curved panel, 11, vertical jet tube, 12, stabilizing pump.

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Detailed ways

The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

As shown in Figure 1, a T-shaped single vertical jet flowmeter comprises a water storage tank 1, a pressure stabilizing pump 12 connected to the water storage tank 1, and a vertical jet flow mechanism is arranged on the top of the water storage tank 1, and the vertical jet flow mechanism includes The vertical jet pipe 11 arranged inside the water storage tank 1, the water inlet of the vertical jet pipe 11 is connected with the pressure stabilizing pump 12, the water outlet of the vertical jet pipe 11 is arranged with a symmetrical curved panel 10, the water outlet of the vertical jet pipe and the symmetrical curved plate The panel 10 is arranged in the jet box 4, and the junction of the water storage tank 1 and the jet box 4 is provided with a jet box drain 5; the upper end of the jet box 4 is arranged with a T-shaped joint vertical rod 7, and the upper end of the T-shaped joint vertical bar 7 is arranged The T-shaped single-joint vernier ruler 3 is respectively arranged with a moving weight 2, a fulcrum 6, and an adjustment swimming code 9 on the T-shaped single-joint vernier ruler 3.

As shown in FIG. 1 , the end of the T-shaped single-joint vertical rod 7 of the present invention is vertically connected to the top cut surface of the symmetrical curved panel 10 .

As shown in FIG. 1 , the mobile weight 2 of the present invention is in sliding contact with a T-shaped single-unit vernier scale 3 .

As shown in Figure 1, a vertical jet tube 11 is arranged in the water storage tank 1, the water inlet at the bottom of the vertical jet tube 11 is connected to the pressure stabilizing pump 12, a flow meter 8 is arranged in the middle of the vertical jet tube 11, and the upper part of the water storage tank 1 is connected to the jet tank 4 Then, the jet outlet 5 is set in the jet box 4, the jet outlet 5 points to the water storage tank 1, the outlet of the vertical jet pipe 11 and the symmetrical curved panel 10 are arranged in the jet box 4, and the end of the T-shaped single-joint vertical rod 7 is symmetrical Curved panel 10 top cut surfaces are vertically connected, T-shaped single-joint vertical bar 7 tops are vertically connected to a horizontal bar, T-shaped single-joint vernier ruler 3 is arranged on the left side of the horizontal bar, and mobile weight 2 and T-shaped single-joint vernier ruler are arranged. 3 sliding contacts, fulcrum 6 and leveling swimming code 9 are arranged on the right side of the horizontal bar.

The working process of the present invention is as follows: the initial equilibrium state of the T-type single-joint force-measuring mechanism is adjusted by leveling the floating code 9, and a certain amount of water is stored in the water storage tank 1, and the water in the water storage tank 1 is obtained by the pressure stabilizing pump 12 The stable pressure makes the water flow in the vertical jet pipe 11 ejected with a constant water head, and the jet impacts the symmetrical curved panel 10, and the symmetrical curved panel 10 transmits the impact force to the T-shaped single-joint vertical rod 7 through the T-shaped single-joint vertical rod 7 at the top of the vertical jet tube 11. Body vernier ruler 3, move the mobile weight 2 on the T-shaped single-joint vernier ruler 3, so that the T-shaped single-joint force measuring mechanism returns to the initial equilibrium state, and measure the impact force on the curved panel through moment balance, and Record the flow reading on flow meter 8.

Claims (3)

1. A T-shaped single vertical jet flow meter, characterized in that it includes a water storage tank (1), a pressure stabilizing pump (12) connected to the water storage tank (1), and a vertical jet flow mechanism is arranged on the upper part of the water storage tank (1) , the vertical jet mechanism includes a vertical jet tube (11) arranged inside the water storage tank (1), the water inlet of the vertical jet tube (11) is connected to the pressure stabilizing pump (12), and the water outlet of the vertical jet tube (11) The symmetrical curved panel (10) is arranged, the water outlet of the vertical jet pipe and the symmetrical curved panel (10) are arranged in the jet box (4), and the junction of the water storage tank (1) and the jet box (4) is provided for drainage of the jet box port (5); the upper end of the jet box (4) is arranged with a T-shaped joint vertical rod (7), and the upper end of the T-shaped joint vertical rod (7) is arranged with a T-shaped single-joint vernier (3). A movable weight (2), a fulcrum (6) and an adjustment swimming weight (9) are respectively arranged on the body vernier ruler (3). 2. The T-shaped monolithic vertical jet flowmeter according to claim 1, characterized in that the end of the T-shaped monolithic vertical rod (7) is vertically connected to the top cut surface of the symmetrical curved plate (10). 3. The T-shaped monomer vertical jet flowmeter according to claim 1, characterized in that the above-mentioned moving weight (2) is in sliding contact with the T-shaped single-unit vernier (3).

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