CN210426637U

CN210426637U - Differential pressure type electronic flowmeter

Info

Publication number: CN210426637U
Application number: CN201921774842.7U
Authority: CN
Inventors: 仇述圆; 孙奇
Original assignee: Haoke Instrument Design Dalian Co Ltd
Current assignee: Haoke Instrument Design Dalian Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-04-28
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a differential electronic flowmeter relates to flowmeter technical field, has solved the problem of the work that current differential electronic flowmeter system can not be fine when the gas circuit has the jam. The utility model discloses a main technical scheme does: the method comprises the following steps: the casing, the left end and the right-hand member of casing set up respectively to air inlet and gas outlet, the middle part of the inside of casing is encircleed along circumference and is provided with the disk seat, the middle part of disk seat is provided with the valve ball, the valve ball with the disk seat rotates to be connected, just the middle part of valve ball is followed the length direction of casing runs through and is provided with the gas flow hole, the upper portion of valve ball is provided with adjusting valve rod, adjusting valve rod runs through the disk seat with the casing extends to the upside of casing, the upper portion of the left and right sides of casing is provided with first pressure sensor and second pressure sensor respectively, first pressure sensor with second pressure sensor divides to locate the left and right sides of valve ball.

Description

Differential pressure type electronic flowmeter

Technical Field

The utility model relates to a flowmeter technical field especially relates to a differential electronic flowmeter.

Background

In industrial fields, instruments for measuring fluid flow are commonly called as flow meters or flow meters, and are widely applied to industries such as air separation, petrochemical industry, food and beverage industry, pharmacy, energy, metallurgy, pulping and papermaking, building materials and the like. As the industry develops, the accuracy and automation requirements for flow measurement become higher and higher, and the innovation from mechanical flow meters to electronic flow meters is one of the most important trends of the flow meters, so various types of electronic flow meters are successively produced.

Using bernoulli's principle: the pressure intensity is large if the speed is small and small if the speed is large in water flow or air flow, and the flow speed is adjusted by controlling the pressure intensity by using the principle, namely the principle of a differential pressure type electronic flowmeter used in the market. Because the flow rate is controlled by controlling the pressure in the pressure difference flowmeter in the market, when the air circuit is blocked, the system can not work well, and the problem is solved by a novel design.

Disclosure of Invention

In view of this, the embodiment of the present invention provides a differential pressure type electronic flowmeter, which mainly aims to solve the problem that the system cannot work well when the gas path is blocked. In order to achieve the above object, the utility model mainly provides the following technical scheme:

in one aspect, an embodiment of the present invention provides a differential pressure type electronic flowmeter, including: the gas valve comprises a shell, a valve seat is arranged in the middle of the inside of the shell in a circumferential surrounding mode, a valve ball is arranged in the middle of the valve seat and is rotatably connected with the valve seat, a gas circulation hole is formed in the middle of the valve ball in a penetrating mode along the length direction of the shell, an adjusting valve rod is arranged on the upper portion of the valve ball and penetrates through the valve seat and the shell to extend to the upper side of the shell, a first pressure sensor and a second pressure sensor are arranged on the upper portions of the left side and the right side of the shell respectively, and the first pressure sensor and the second pressure sensor are arranged on the left side and the right side of the valve ball respectively;

the air inlet and the air outlet of the shell are respectively connected with an air inlet pipe and an air outlet pipe, the diameters of the air inlet pipe and the air outlet pipe are smaller than the diameter of the shell, the air inlet pipe, the air outlet pipe and the shell are respectively provided with a connecting part, the right sides of the air inlet pipe and the valve seat are respectively provided with a sliding plug matched with the inner cavity of the shell, the middle part of the sliding plug is provided with a through hole along the length direction of the shell in a penetrating way, the diameter of the through hole is smaller than the diameters of the air inlet pipe and the air circulation hole, the right side wall of the sliding plug is connected with one end of a spring, the other end of the spring on the left side is connected with the left side wall of the valve seat, the other end of the spring on the right side is connected with the connecting part on the right side, transparent observation windows are respectively arranged on the left side and the right side of the lower side wall of the shell along the length direction of the shell.

Optionally, a rubber sealing strip is arranged at a contact position of the valve seat and the outer edge of the valve ball.

Optionally, the method further includes: a processor electrically connected to the first pressure sensor and the second pressure sensor.

Optionally, a display screen is further disposed on the processor, and is configured to display the signal values of the first pressure sensor and the second pressure sensor and the signal difference between the first pressure sensor and the second pressure sensor.

Optionally, the method further includes: and the alarm is electrically connected with the processor and used for sending out an alarm signal according to the signal of the processor.

Optionally, the alarm signal is a voice signal.

The embodiment of the utility model provides a differential pressure type electronic flowmeter, gas enters an air inlet of a shell through an air inlet pipe, the angle of a valve ball is adjusted through an adjusting valve rod, thereby adjusting the size of the cross section of the gas circulation hole through which the gas can circulate, thereby achieving the effect of controlling the flow rate of the gas, and in the process, the pressure signal values of the gas at the two sides of the valve ball are respectively measured by the first pressure sensor and the second pressure sensor, when the gas output end, namely the gas outlet, has blockage or other problems, or when the gas input end has no gas, the gas can be judged to exist or not through the detection results of the first pressure sensor and the second pressure sensor, and whether the gas circuit has the problem of jam, can effectual solution present differential pressure type electronic flowmeter when the gas circuit has the jam, the problem of the work that the system can not be fine.

Drawings

Fig. 1 is a schematic structural diagram of a main body of a differential pressure electronic flowmeter according to an embodiment of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the differential pressure type electronic flowmeter according to the present invention with reference to the accompanying drawings and preferred embodiments will be made with reference to the following detailed description.

Because the flow rate is controlled by controlling the pressure in the pressure difference flowmeter on the market in the prior art, when an air path is blocked, the system cannot work well, and therefore the problem is solved through a novel design.

Example one

As shown in fig. 1, an embodiment of the present invention provides a differential pressure type electronic flowmeter, including:

the gas valve comprises a shell 1, wherein the shell 1 is of a hollow structure, the left end and the right end of the shell 1 are respectively provided with a gas inlet and a gas outlet, the middle part of the inside of the shell 1 is circumferentially provided with a valve seat 2, the middle part of the valve seat 2 is provided with a valve ball 3, the valve ball 3 is rotatably connected with the valve seat 2, the middle part of the valve ball 3 is provided with a gas circulation hole 4 in a penetrating manner along the length direction of the shell 1, the upper part of the valve ball 3 is provided with an adjusting valve rod 5, the adjusting valve rod 5 penetrates through the valve seat 2 and the shell 1 and extends to the upper side of the shell 1, the upper parts of the left side and the right side of the shell 1 are respectively provided with a first pressure sensor 6 and a second pressure sensor, and the first pressure sensor 6 and the second pressure sensor 7 are respectively arranged on;

casing 1 the air inlet with air outlet department is connected with intake pipe 8 and outlet duct 9 respectively, intake pipe 8 with the diameter of outlet duct 9 is less than casing 1's diameter, intake pipe 8 with outlet duct 9 with form connecting portion 10 between the casing 1 respectively, intake pipe 8 with the right side of disk seat 2 be provided with respectively with the sliding plug 11 of casing 1's inner chamber looks adaptation, the middle part of sliding plug 11 is followed casing 1's length direction runs through and is provided with through-hole 12, the diameter of through-hole 12 is less than intake pipe 8 with the diameter of gas circulation hole 4, the one end of sliding plug 11's right side wall coupling spring 13, left the other end of spring 13 connect in disk seat 2's left side wall, right side spring 13's the other end connect in right side connecting portion 10, casing 1's lower side wall left and right sides are followed respectively casing 1's length direction is provided with transparent observation window 14.

Specifically, casing 1 is differential pressure type electronic flowmeter's shell, when using, gaseous air inlet that gets into casing 1 through intake pipe 8, at this moment, can adjust the angle of valve ball 3 through adjusting valve rod 5, thereby adjust the cross-sectional size of the gas circulation hole 4 that gaseous can circulate, thereby reach the effect of control gas velocity of flow, and at this in-process, measure the pressure signal value of the gas of valve ball 3 both sides respectively through first pressure sensor 6 and second pressure sensor 7, when the gas output end, there is jam or other problems in gas outlet department promptly, or when the gas input end is gasless, can judge whether there is gas through the testing result of first pressure sensor 6 and second pressure sensor 7, and whether the gas circuit has the problem of jam, can effectually solve foretell problem. In addition, when having the gas circulation, owing to set up sliding plug 11, and the diameter of the through-hole at sliding plug 11 middle part is less than the diameter of intake pipe 8 and gas circulation hole 4, when gaseous admission air inlet or gaseous by gas circulation hole 4 outflow, the pressure that the gas circulation produced can promote the relative casing 1 of sliding plug 11 to the good one in right side, the staff can look over the displacement of the position of sliding plug 11 and removal through transparent observation window 14 and come preliminary judgement gaseous velocity of flow and have the condition of gas circulation, the supplementary staff that can be further judges the gas circulation condition, the validity and the reliability of the work of pressure differential electronic flowmeter improve.

Specifically, a rubber sealing strip 15 is arranged at the contact part of the valve seat 2 and the outer edge of the valve ball 3.

Specifically, this embodiment proposes that a differential pressure type electronic flowmeter further includes: a processor electrically connected to the first pressure sensor 6 and the second pressure sensor 7. The signal values measured by the first pressure sensor 6 and the second pressure sensor 7 can be obtained in time through the processor, and the processing and the judgment are carried out.

Specifically, the processor is further provided with a display screen for displaying the signal values of the first pressure sensor 6 and the second pressure sensor 7 and the signal difference value of the first pressure sensor 6 and the second pressure sensor 7. The display screen is arranged to display the signal values measured by the first pressure sensor 6 and the second pressure sensor 7 and the difference value of the signal values measured by the first pressure sensor and the second pressure sensor, so that the measurement result can be obtained more intuitively by the workers.

Specifically, this embodiment proposes that a differential pressure type electronic flowmeter further includes: and the alarm is electrically connected with the processor and used for sending out an alarm signal according to the signal of the processor. Through setting up the siren, when the treater judges that the air current appears the air current and blocks up or the gas outlet has no air current to pass through in the inside gas circuit of topic, can in time carry out the police dispatch newspaper, remind the staff in time to look over promptly and handle. Further, the alarm signal may be a voice signal.

It should be noted that in the description of the present specification, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A differential pressure electronic flow meter, comprising:

the gas valve comprises a shell, a valve seat is arranged in the middle of the inside of the shell in a circumferential surrounding mode, a valve ball is arranged in the middle of the valve seat and is rotatably connected with the valve seat, a gas circulation hole is formed in the middle of the valve ball in a penetrating mode along the length direction of the shell, an adjusting valve rod is arranged on the upper portion of the valve ball and penetrates through the valve seat and the shell to extend to the upper side of the shell, a first pressure sensor and a second pressure sensor are arranged on the upper portions of the left side and the right side of the shell respectively, and the first pressure sensor and the second pressure sensor are arranged on the left side and the right side of the valve ball respectively;

2. The differential pressure electronic flowmeter of claim 1,

and a rubber sealing strip is arranged at the contact part of the valve seat and the outer edge of the valve ball.

3. The differential pressure electronic flow meter of claim 1, further comprising:

a processor electrically connected with the first pressure sensor and the second pressure sensor.

4. The differential pressure electronic flowmeter of claim 3,

the processor is further provided with a display screen for displaying the signal values of the first pressure sensor and the second pressure sensor and the signal difference value of the first pressure sensor and the second pressure sensor.

5. The differential pressure electronic flow meter of claim 4, further comprising:

and the alarm is electrically connected with the processor and used for sending out an alarm signal according to the signal of the processor.

6. The differential pressure electronic flowmeter of claim 5,

the alarm signal is a voice signal.