CN216246579U

CN216246579U - Volume type flowmeter

Info

Publication number: CN216246579U
Application number: CN202122315035.2U
Authority: CN
Inventors: 李儒介; 李俊峰; 张春新
Original assignee: Baotou Shibo Re Extraction Equiment Co ltd
Current assignee: Baotou Shibo Re Extraction Equiment Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-04-08
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a volume type flowmeter, which comprises an upper cavity, a lower cavity, a liquid inlet valve and a liquid outlet valve, wherein a ball float valve is installed at the top of the upper cavity, and an outlet at the top end of the ball float valve is communicated with an exhaust pipe; the liquid inlet valve and the liquid outlet valve are arranged between the bottom end of the upper cavity and the top end of the lower cavity, a liquid inlet pipe is communicated with an inlet of the liquid inlet valve, an outlet of the liquid inlet valve is communicated with a lower end plate of the upper cavity, and an inlet and an outlet of the liquid outlet valve are respectively communicated with a lower end plate of the upper cavity and an upper end plate of the lower cavity; a liquid outlet is communicated with the lower end plate of the lower cavity; the device is provided with an upper cavity and a lower cavity, liquid enters the upper cavity and is quantitative volume, after the liquid is filled, the liquid is quantitatively calculated for one time through one time of opening and closing of the valve body, the volume of the liquid flowing through is finally counted through the times of opening and closing of the valve, and the quantitative volume of the upper cavity can be adjusted.

Description

Volume type flowmeter

Technical Field

The utility model relates to the technical field of flow metering equipment, in particular to a volume type flowmeter.

Background

The national committee on the approval of science and technology defines a flow meter as: meters that indicate the measured flow rate and/or the total amount of fluid in a selected time interval. Simply a meter for measuring the flow of fluid in a pipe or open channel. Classifying according to media: liquid flow meters and gas flow meters.

The principle of the existing liquid flowmeter is that fluid of the liquid flowmeter flows through a sensor shell, a certain angle is formed between a blade of an impeller and a flow direction, the impulse force of the fluid enables the blade to have rotating moment, the blade rotates after overcoming friction moment and fluid resistance, the rotating speed is stable after the moment is balanced, the rotating speed of the liquid flowmeter is in direct proportion to flow speed under a certain condition, the rotating blade is positioned in a magnetic field of a signal detector (consisting of permanent magnetic steel and a coil) due to magnetic conductivity of the blade, the rotating blade cuts magnetic lines of force, the magnetic flux of the coil is periodically changed, so that electric pulse signals are induced at two ends of the coil, the signals are amplified and shaped by an amplifier to form continuous rectangular pulse waves with certain amplitude, and the continuous rectangular pulse waves can be transmitted to a display instrument to display instantaneous flow or total amount of the fluid. The liquid flowmeter has the advantages that within a certain flow range, the pulse frequency is in direct proportion to the instantaneous flow of the fluid flowing through the sensor, the flow cannot be controlled while the liquid volume calculation mode is low in precision, and therefore the liquid of some production line systems is not stable enough when the mixing requirement exists.

The utility model has the following contents:

according to the defects of the prior art, the utility model provides a volume type flowmeter which is provided with an upper cavity and a lower cavity, wherein the upper cavity is used for containing liquid, the quantitative volume is calculated by opening and closing the valve body once after the liquid is filled, the volume of the liquid flowing through the upper cavity is counted by the opening and closing times of the valve, and the quantitative volume of the upper cavity can be adjusted.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a volume type flowmeter comprises an upper cavity, a lower cavity, a liquid inlet valve and a liquid outlet valve, wherein a ball float valve is mounted at the top of the upper cavity, and an outlet at the top end of the ball float valve is communicated with an exhaust pipe; the liquid inlet valve and the liquid outlet valve are arranged between the bottom end of the upper cavity and the top end of the lower cavity, a liquid inlet pipe is communicated with an inlet of the liquid inlet valve, an outlet of the liquid inlet valve is communicated with a lower end plate of the upper cavity, and an inlet and an outlet of the liquid outlet valve are respectively communicated with a lower end plate of the upper cavity and an upper end plate of the lower cavity; and a liquid outlet is communicated with the lower end plate of the lower cavity.

Preferably, the upper cavity and the lower cavity are identical in structure, the upper cavity comprises a cylinder body, an upper cover plate, a lower cover plate, a double-headed screw and a fixing nut, the upper cover plate and the lower cover plate are respectively buckled at the top end and the bottom end of the cylinder body, a plurality of double-headed screws penetrate through the upper cover plate and the lower cover plate outside the cylinder body, and the fixing nuts are connected to the double-headed screws above the upper cover plate and below the lower cover plate.

Preferably, the bottom end of the upper cover plate and the top end of the lower cover plate corresponding to the cylinder body are provided with annular grooves, O-rings are arranged in the annular grooves, and the top end and the bottom end of the cylinder body are respectively clamped in the corresponding annular grooves.

Preferably, the outer edge of the top end of the upper cover plate and the outer edge of the bottom end of the lower cover plate are respectively provided with a reinforcing ring, and two ends of the double-threaded screw penetrate through the adjacent reinforcing rings.

Preferably, the cylinder is a glass cylinder.

Preferably, the float valve comprises a float valve cylinder, a float valve upper cover, a float valve seat, a float ball and a valve core, wherein the bottom end of the float valve cylinder is fixed with the upper end plate of the upper cavity, and an air inlet is formed in the upper end plate inside the float valve cylinder; the top end of the float valve barrel is sequentially fixed with the float valve upper cover and the float valve seat, the top end of the float valve seat is communicated with the exhaust pipe, the float ball is arranged in the float valve barrel, and the top of the float ball is fixed with the valve core matched with the float valve seat.

Preferably, a plurality of connecting screws penetrate through the space between the lower cover plate of the upper cavity and the outer edge of the upper cover plate of the lower cavity, and two ends of each connecting screw are connected with fixing nuts.

Preferably, an overflow pipe is communicated with the lower cover plate of the lower cavity, and the top end of the overflow pipe penetrates below the upper cover plate of the lower cavity.

Preferably, a buffer tube with a closed top end is fixed on an outlet of the liquid inlet valve in the upper cavity, and a plurality of through holes are formed in the side part of the buffer tube.

The volume flowmeter has the following beneficial effects:

1. the upper cavity and the lower cavity of the device are made of transparent materials of glass, so that the condition in the cavity can be conveniently checked.

2. The liquid full capacity design of going up the cavity is the definite value, opens the flowing back valve and accomplishes a flowing back to the cavity down after fully loading, and the statistics valve opens the number of times and can convert out the liquid volume that passes through, and the calculation of quantitative value is more accurate with rotational speed, velocity of flow are direct proportional calculation mode.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

Fig. 3 is a schematic structural view of the liquid inlet valve of the present invention.

FIG. 4 is a schematic view of the drain valve structure of the present invention.

FIG. 5 is a partial structural view of the lower chamber of the present invention.

Fig. 6 is a schematic top view of the present invention.

FIG. 7 is a schematic diagram of the overall connection relationship of the present invention.

In the figure, an upper cavity 1, a lower cavity 2, a liquid inlet valve 3, a liquid outlet valve 4, a floating ball valve 5, a floating valve barrel 5-1, a floating valve upper cover 5-2, a floating valve seat 5-3, a valve core 5-4, a floating ball 5-5, an exhaust pipe 5-6, an upper cover plate 6, a lower cover plate 7, a double-headed screw 8, a fixing nut 9, a buffer pipe 10, an overflow pipe 11, a barrel 12, a liquid outlet 13, an air cylinder 14, a reinforcing ring 15, an O-shaped ring 16, an annular groove 17, a through hole 18 and a liquid inlet pipe 19.

The specific implementation mode is as follows:

as shown in fig. 1, 2 and 7, a volumetric flowmeter comprises an upper cavity 1, a lower cavity 2, a liquid inlet valve 3 and a liquid outlet valve 4, wherein a float valve 5 is installed at the top of the upper cavity 1, an outlet at the top end of the float valve 5 is communicated with an exhaust pipe, the float valve 5 comprises a float valve cylinder 5-1, a float valve upper cover 5-2, a float valve seat 5-3, a float ball 5-5 and a valve core 5-4, the bottom end of the float valve cylinder 5-1 is fixed with an upper end plate of the upper cavity 1, and an air inlet is formed in the upper end plate inside the float valve cylinder 5-1; the top end of the float valve barrel body 5-1 is sequentially fixed with a float valve upper cover 5-2 and a float valve seat 5-3, the top end of the float valve seat 5-3 is communicated with the exhaust pipe, a float ball 5-5 is arranged inside the float valve barrel body 5-1, the top of the float ball 5-5 is fixed with a valve core 5-4 matched with the float valve seat 5-3, when liquid enters the upper cavity body 1, gas in the upper cavity body 1 is exhausted through an air inlet, and after the liquid rises, the float ball 5-5 rises to close the exhaust hole, so that the liquid is prevented from leaking from the top. The upper cavity 1 and the lower cavity 2 have the same structure, the upper cavity 1 comprises a cylinder 12, an upper cover plate 6, a lower cover plate 7, double-headed screws 8 and fixing nuts 9, the upper cover plate 6 and the lower cover plate 7 are respectively buckled at the top end and the bottom end of the cylinder 12, a plurality of double-headed screws 8 penetrate between the upper cover plate 6 and the lower cover plate 7 outside the cylinder 12, and the double-headed screws 8 above the upper cover plate 6 and below the lower cover plate 7 are both connected with the fixing nuts 9; annular grooves 17 are formed in the bottom end of the cylinder body 12 corresponding to the upper cover plate 6 and the top end of the lower cover plate 7, O-shaped rings 16 are arranged in the annular grooves 17, and the top end and the bottom end of the cylinder body 12 are respectively clamped in the corresponding annular grooves 17.

As shown in fig. 2-6, the cylinder 12 is a glass cylinder 12, preferably made of high boron glass, which facilitates viewing of the interior of the chamber; a plurality of connecting screw rods penetrate between the outer edges of the lower cover plate 7 of the upper cavity 1 and the upper cover plate 6 of the lower cavity 2, and fixing nuts are connected to two ends of the connecting screw rods; the outer edge of the top end of the upper cover plate 6 and the outer edge of the bottom end of the lower cover plate 7 are respectively provided with a reinforcing ring 15, and two ends of the double-threaded screw penetrate through the adjacent reinforcing rings 15; a liquid inlet valve 3 and a liquid outlet valve 4 are arranged between the bottom end of the upper cavity 1 and the top end of the lower cavity 2, and the liquid inlet valve 3 and the liquid outlet valve 4 are controlled by a cylinder 14; the inlet of the liquid inlet valve 3 is communicated with a liquid inlet pipe 19, the outlet of the liquid inlet valve 3 is communicated with the lower end plate of the upper cavity 1, and the inlet and the outlet of the liquid outlet valve 4 are respectively communicated with the lower end plate of the upper cavity 1 and the upper end plate of the lower cavity 2; a liquid outlet 13 is communicated with the lower end plate of the lower cavity 2; an overflow pipe 11 is communicated with the lower cover plate 7 of the lower cavity 2, the top end of the overflow pipe 11 penetrates below the upper cover plate 6 of the lower cavity 2, the overflow pipe 11 controls the liquid level height in the lower cavity 2, and when the liquid level is higher than the liquid level of the rear part of the overflow pipe 11, part of the liquid is discharged from the overflow pipe 11, so that the flow speed of the liquid cannot be influenced; a buffer tube 10 with a closed top end is fixed on an outlet of the liquid inlet valve 3 in the upper cavity 1, a plurality of through holes 18 are formed in the side part of the buffer tube 10, and the buffer tube 10 prevents liquid from directly impacting the floating ball 5-5 due to flow velocity when entering the upper cavity 1, so that the floating ball 5-5 is abnormally closed. The above-mentioned fixing methods are all welded or screwed by means of the common technical means of those skilled in the art, if they are not separately described.

As shown in fig. 2, 3 and 4, the working principle is as follows:

the volume flow meter is conveyed into the upper cavity 1 along a pipeline through the head tank or the pump, the PLC controls the air cylinder 14 through the electromagnetic valve, the air cylinder 14 drives the valve body to be opened and closed, the liquid discharge valve 4 is closed, the head tank liquid flows into the upper cavity 1 of the flow meter at the moment, the gas in the upper cavity 1 is discharged through the exhaust pipe of the ball float valve 5, the liquid in the upper cavity 1 is filled, the liquid continuously rises to push the ball float in the ball float valve barrel 5-1 to seal the cavity, and the liquid in the cavity is enabled to be in a full state all the time. Then after the fixed time is set, the cylinder 14 is continuously controlled through the electromagnetic valve, the cylinder 14 drives the valve body to open and close, the liquid inlet valve 3 is closed, the liquid outlet valve 4 is opened, at the moment, the liquid in the head tank does not enter the upper cavity 1 of the flowmeter any more, the liquid in the upper cavity 1 flows into the lower cavity 2 through the liquid outlet valve 4, and the ball float valve 5 is automatically opened to supplement the gas in the cavity.

The ball valve opening is arranged at the outlet of liquid in the lower cavity 2, so that the liquid can be stably discharged at a uniform speed, the ball valve can be manually adjusted through the flow rate and the frequency, the overflow pipe 11 is arranged on the lower cavity 2, and if the liquid is not transported and discharged within a set time, the liquid in the upper cavity 1 can be discharged through the overflow pipe 11 in a short circuit mode, so that the flow cannot be lost or error midway. Liquid flows into the upper cavity 1 of the flowmeter through a high position, the liquid in the upper cavity 1 flows into the lower cavity 2, the liquid in the lower cavity 2 is freely discharged, the reciprocating operation is carried out, and the volume and the flow of the liquid are determined through the switching frequency of the valve.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A volume type flowmeter is characterized by comprising an upper cavity, a lower cavity, a liquid inlet valve and a liquid outlet valve, wherein a ball float valve is mounted at the top of the upper cavity, and an outlet at the top end of the ball float valve is communicated with an exhaust pipe; the liquid inlet valve and the liquid outlet valve are arranged between the bottom end of the upper cavity and the top end of the lower cavity, a liquid inlet pipe is communicated with an inlet of the liquid inlet valve, an outlet of the liquid inlet valve is communicated with a lower end plate of the upper cavity, and an inlet and an outlet of the liquid outlet valve are respectively communicated with a lower end plate of the upper cavity and an upper end plate of the lower cavity; and a liquid outlet is communicated with the lower end plate of the lower cavity.

2. The volumetric flowmeter of claim 1, wherein the upper chamber and the lower chamber have the same structure, the upper chamber comprises a cylinder, an upper cover plate, a lower cover plate, a double-headed screw, and a fixing nut, the upper cover plate and the lower cover plate are respectively fastened to the top end and the bottom end of the cylinder, a plurality of double-headed screws penetrate between the upper cover plate and the lower cover plate outside the cylinder, and the fixing nuts are connected to the double-headed screws above the upper cover plate and below the lower cover plate.

3. The volumetric flowmeter of claim 2, wherein annular grooves are formed at the bottom end of the upper cover plate and the top end of the lower cover plate corresponding to the cylinder, O-rings are arranged in the annular grooves, and the top end and the bottom end of the cylinder are respectively clamped in the corresponding annular grooves.

4. The volumetric flowmeter of claim 2, wherein reinforcing rings are respectively arranged on the top outer edge of the upper cover plate and the bottom outer edge of the lower cover plate, and two ends of the double-headed screw rod pass through the adjacent reinforcing rings.

5. A volumetric flow meter according to claim 2 or 3, characterized in that the cylinder is a glass cylinder.

6. The volumetric flowmeter of claim 1, wherein the float valve comprises a float valve cylinder, a float valve upper cover, a float valve seat, a float ball and a valve core, wherein the bottom end of the float valve cylinder is fixed with the upper end plate of the upper cavity, and an air inlet is formed in the upper end plate inside the float valve cylinder; the top end of the float valve barrel is sequentially fixed with the float valve upper cover and the float valve seat, the top end of the float valve seat is communicated with the exhaust pipe, the float ball is arranged in the float valve barrel, and the top of the float ball is fixed with the valve core matched with the float valve seat.

7. The volumetric flowmeter of claim 1, 2, 3, 4 or 6, wherein a plurality of connecting screws penetrate between the lower cover plate of the upper cavity and the outer edge of the upper cover plate of the lower cavity, and fixing nuts are connected to two ends of each connecting screw.

8. The volumetric flowmeter of claim 1, 2, 3, 4 or 6, wherein an overflow pipe is connected to the lower cover plate of said lower chamber, and the top end of said overflow pipe penetrates below the upper cover plate of said lower chamber.

9. The volumetric flowmeter of claim 7, wherein an overflow pipe is connected to said lower cover plate of said lower chamber, and a top end of said overflow pipe extends below said upper cover plate of said lower chamber.

10. A volumetric flowmeter according to claim 1, 2, 3, 4, 6 or 9, characterized in that a buffer tube with a closed top end is fixed to the outlet of said inlet valve in said upper chamber, and a plurality of through holes are opened on the side of said buffer tube.