阅读说明：本技术 一种高适应性板孔流量计及其控制系统 (High-adaptability plate hole flowmeter and control system thereof ) 是由 沈必亮 李聪 王晓春 何一军 丁学良 姚文亮 于 2021-06-02 设计创作，主要内容包括：本发明公开了一种高适应性板孔流量计及其控制系统,涉及板孔流量计技术领域,包括运动室、测量管、支撑底座、控制仪表、连接环,运动室内设有节流板,节流板两侧固定连接有测量管,测量管固定连接有衔接环,衔接管连接有固定环,衔接管与固定环之间设有旋转环,旋转环内侧转轴连接有固定转环,连接环一端设有插入环,衔接环对应插入环设有插入槽,连接环外侧对应固定转环固定设有凸起环,连接环上固定设有密封环,节流板之间设有节流盘,节流盘上设有节流孔。本发明结构简单,易于操作,可配接的管道广泛,连接方便,可对不同密度的流体进行测量,并通过自动调节节流孔的大小,减小测量误差,可测量的范围广泛,适合推广。(The invention discloses a high-adaptability plate hole flowmeter and a control system thereof, and relates to the technical field of plate hole flowmeters. The invention has simple structure, easy operation, wide matched pipelines and convenient connection, can measure the fluids with different densities, reduces the measurement error by automatically adjusting the size of the throttling hole, has wide measurable range and is suitable for popularization.)

1. The utility model provides a high adaptability plate orifice flowmeter, includes motion room (1), surveys buret (2), supports base (3), control instrument (6), go-between (10), its characterized in that, motion room (1) below fixedly connected with supports base (3), be equipped with throttle plate (25) in motion room (1), throttle plate (25) both sides fixedly connected with surveys buret (2), survey buret (2) fixedly connected with link (7), link pipe (7) through stopping link (23) fixedly connected with solid fixed ring (11), be equipped with rotatory ring (9) between link pipe (7) and solid fixed ring (11), rotatory ring (9) inboard pivot is connected with fixed swivel ring (22), go-between (10) one end is equipped with insert ring (30), link ring (7) correspond insert ring (30) and are equipped with insertion groove (13), a raised ring (12) is fixedly arranged on the outer side of the connecting ring (10) corresponding to the fixed rotating ring (22), and a sealing ring (31) is fixedly arranged on the connecting ring (10);

a throttle plate (16) is arranged between the throttle plates (25), a throttle hole (19) is arranged on the throttle plate (16), a sealing ring (20) matched with the throttle plate (25) is arranged around the throttle hole (19), the side edge of the throttle plate (16) is provided with a matching insection (18), an output shaft (21) of the motor (14) is fixedly connected with a rotating gear (17), the rotating gear (17) is matched with the matching insection (18), a differential pressure transmitter (4) is fixedly connected above the moving chamber (1), the upper surface of the differential pressure transmitter (4) is fixedly connected with a control instrument (6) through a connecting frame (5), the lower surface of the differential pressure transmitter (4) is fixedly connected with a pressure guide pipe (8), the pressure guide pipe (8) penetrates into the motion chamber (1) and is fixedly connected with the measuring pipes (2) at the two sides, the pressure guide pipe (8) penetrates into the measuring pipe (2) through the pressure guide hole (26).

2. A high-adaptability plate hole flowmeter according to claim 1, wherein the throttle plate (25) is provided with a hole in the center, and the throttle plate (25) is located at the center point of the throttle plate (16) and is connected with the throttle plate through a rotating shaft.

3. A highly adaptable plate hole flowmeter according to claim 1, characterized in that the rotating ring (9) is rotationally connected to the stationary ring (11) by a forward stabilizing ring (28), and the rotating ring (9) is rotationally connected to the adaptor ring (7) by a rearward stabilizing ring (29).

4. A plate hole flowmeter with high adaptability according to claim 1, characterized in that the fixed rotary rings (22) are uniformly distributed on the inner ring of the rotary ring (9), one end of each fixed rotary ring is connected through a rotating shaft, and the other end of each fixed rotary ring is positioned above the blocking connecting frame (23).

5. A highly adaptable plate hole flowmeter according to claim 1, wherein the connection rings (10) are of different types, the insertion groove (13) is matched with the connection rings (10) of different types, and the connection rings (10) of different types are corresponding to the raised rings (12) of different sizes.

6. The plate hole flowmeter with high adaptability as claimed in claim 1, characterized in that the raised ring (12) is located corresponding to the fixed rotary ring (22), the fixed ring (11) is symmetrically provided with sliding grooves (27), the sliding grooves (27) are internally provided with fixed sliders (15), the rotating ring (9) is uniformly provided with symmetrical fixed holes (24), the position of each fixed hole (24) corresponds to the rotation degree of the rotating ring (9) and one end of the fixed slider (15), the rotation degree of the rotating ring (9) corresponds to the jacking degree of the fixed rotary ring (22) by the blocking connecting frame (23), and the jacking degree of the fixed rotary ring (22) by the blocking connecting frame (23) corresponds to connecting rings (10) of different models.

7. A highly adaptable plate hole flowmeter according to claim 1, characterized in that the orifice (19) is of a different type on the orifice disc (16) and has its center point on the same circle as the center point of the hole in the center of the orifice plate (25).

8. A highly adaptable plate hole flowmeter according to claim 1, characterized in that said control instrument (6) has a processor inside and signal connection with the motor (14).

9. A control system of a high-adaptability plate hole flowmeter is suitable for the high-adaptability plate hole flowmeter of any one of claims 1-8, and is characterized in that a processor is arranged in a control instrument (6), a control system is arranged in the processor, and the processing system is divided into a sensing module, a processing module and a display module;

the induction module and the differential pressure transmitter (4) are mutually induced, the magnitude of differential pressure can be judged by analyzing differential pressure data transmitted by the differential pressure transmitter (4), and a signal is sent to the control module when the differential pressure value is larger or smaller;

the processing module can control the motor (14), so that the motor rotates to drive the throttle disc (16) to move, and a proper throttle hole (19) is selected according to the magnitude of the differential pressure value, so that the differential pressure value is stabilized in a range with smaller measurement error;

the display module is connected with a display screen and can convert the numerical value of the differential pressure transmitter (4) to the display screen.

Technical Field

The invention belongs to the technical field of plate hole flowmeters, and particularly relates to a high-adaptability plate hole flowmeter and a control system thereof.

Background

The differential pressure type flowmeter is the most widely used flowmeter at present. The differential pressure flow device with high range ratio is formed by matching a standard orifice plate with a multi-parameter differential pressure transmitter (or the differential pressure transmitter, a temperature transmitter and a pressure transmitter), has the characteristics of simple structure, convenient maintenance and stable performance, and fluid filled in a pipeline flows through a throttling device in the pipeline to cause local contraction near a throttling piece, the flow velocity is increased, and static pressure difference is generated at the upper side and the lower side of the throttling piece. The differential pressure type flowmeter can measure the flow of gas, steam, liquid and the like, but measures the fluid with larger density difference between the gas and the liquid and the like, needs different differential pressure flowmeters to measure, increases the use cost, and is different according to the model of the pipeline to be connected, and also needs the differential pressure flowmeters with different calibers, so the embodiment provides the differential pressure flowmeter which has wide adaptive pipeline, is convenient to connect, can measure various fluids, automatically adjusts the size of a throttling hole and has small measurement error.

Disclosure of Invention

The invention aims to provide a high-adaptability plate hole flowmeter and a control system thereof, which have the advantages of simple structure, easy operation, wide range of matched pipelines, convenient connection, capability of measuring fluids with different densities, capability of reducing measurement errors by automatically adjusting the size of a throttling hole, wide measurable range and suitability for popularization.

The invention provides the following technical scheme: a high-adaptability plate hole flowmeter comprises a motion chamber, a measuring pipe, a supporting base, a control instrument and a connecting ring, wherein the supporting base is fixedly connected below the motion chamber, a throttle plate is arranged in the motion chamber, the measuring pipe is fixedly connected to two sides of the throttle plate, the measuring pipe is fixedly connected with a connecting ring, the connecting pipe is fixedly connected with a fixing ring through a blocking connecting frame, a rotating ring is arranged between the connecting pipe and the fixing ring, a fixed rotating ring is connected to the inner side of the rotating ring in a rotating mode, an inserting ring is arranged at one end of the connecting ring, the connecting ring is provided with an inserting groove corresponding to the inserting ring, a protruding ring is fixedly arranged on the outer side of the connecting ring corresponding to the fixed rotating ring, and a sealing ring is fixedly arranged on the connecting ring;

be equipped with the throttle plate between the throttle plate, be equipped with the orifice on the throttle plate, be equipped with around the orifice with throttle plate assorted sealing washer, throttle plate side is equipped with the cooperation insection, the output shaft fixedly connected with rotating gear of motor, rotating gear and cooperation insection phase-match, motion room top fixedly connected with differential pressure transmitter, the differential pressure transmitter upper surface is through link fixedly connected with control instrument, differential pressure transmitter lower surface fixedly connected with connecting tube, the connecting tube runs through and penetrates the motion room and the fixed linking to each other of buret is surveyed to both sides, the connecting tube runs through to the inside of surveying the buret through the pressure guide hole.

Preferably, the throttle plate is provided with a hole in the center, and the throttle plate is positioned at the center of the throttle disc and connected with the throttle plate through a rotating shaft.

Preferably, the swivel ring is rotatably connected to the stationary ring by a front stabilizing ring, and the swivel ring is rotatably connected to the adapter ring by a rear stabilizing ring.

Preferably, the fixed rotating ring is uniformly distributed on the inner ring of the rotating ring, one end of the fixed rotating ring is connected through the rotating shaft, and the other end of the fixed rotating ring is positioned above the blocking connecting frame.

Preferably, the connecting rings have different models, the insertion grooves are matched with the connecting rings of different models, and the connecting rings of different models are corresponding to the convex rings with different sizes.

Preferably, the position of the protruding ring corresponds to the fixed swivel, the fixed rings are symmetrically provided with sliding grooves, fixed sliding blocks are arranged in the sliding grooves, the rotating ring is uniformly provided with symmetrical fixed holes, the position of each fixed hole corresponds to the rotating degree of the rotating ring and is matched with one end of each fixed sliding block, the rotating degree of the rotating ring corresponds to the jacking degree of the blocked connecting frame, and the jacking degree of the blocked connecting frame of the fixed swivel corresponds to connecting rings of different models.

Preferably, the throttle holes are provided with different types on the throttle disc, and the central points of the throttle holes and the central point of the hole in the center of the throttle plate are on the same circle.

Preferably, the control instrument is internally provided with a processor which is in signal connection with the motor.

The invention also provides a control system of the high-adaptability plate hole flowmeter, which is characterized in that a processor in the instrument is controlled, a control system is arranged in the processor, and the processing system is divided into an induction module, a processing module and a display module;

the sensing module and the differential pressure transmitter are mutually sensed, the magnitude of differential pressure can be judged by analyzing differential pressure data transmitted by the differential pressure transmitter, and a signal is sent to the control module when the differential pressure value is larger or smaller;

the processing module can control the motor to rotate the motor to drive the throttle disc to move, and a proper throttle hole is selected according to the magnitude of the differential pressure value to stabilize the differential pressure value within a range with smaller measurement error;

the display module is connected with the display screen, can convert differential pressure transmitter's numerical value to on the display screen.

The invention has the beneficial effects that: simple structure, easily operation, the pipeline that can join in marriage and connect is extensive, connects conveniently, can measure the fluid of different density to through the size of automatically regulated orifice, reduce measuring error, measurable scope is extensive, specifically as follows:

(1) the invention is provided with a connecting ring, when the differential pressure flowmeter and the pipeline need to be butted, the connecting ring matched with the pipeline is selected to be connected, then the connecting ring is inserted into a fixed ring, an insertion ring on the connecting ring is inserted into a corresponding insertion groove on a connecting ring, at the moment, the sealing ring is tightly buckled on the surface of the connecting ring, the pipeline is communicated with the differential pressure flowmeter, the rotating ring is rotated, a fixed rotating ring times the connecting frame is jacked up to contract inwards in the rotating process, after the fixed rotating ring is contacted with the connecting ring, the position of a fixed slide block in a slide groove on the fixed ring is opposite to the position of a fixed hole, the rotating ring is fixed by inserting an upper fixed slide block and a lower fixed slide block into the fixed hole, at the moment, the fixed rotating ring is clamped with a convex ring, the connecting ring is fixed, and the range of the connecting pipeline of the differential pressure flowmeter is wider.

(2) The invention is provided with the throttle disc, the throttle hole size aiming at different fluids is adjusted through the rotation of the throttle disc, when the measured fluid density is smaller, the throttle disc is rotated to rotate the smaller throttle hole to the central hole of the throttle plate, when the fluid density is larger, the throttle disc is rotated to rotate the larger throttle hole to the central hole of the throttle plate, so that the differential pressure value at the two sides of the throttle plate is kept in a range convenient to measure, the differential pressure flowmeter can measure most fluids and can reduce measurement errors, and the adjustment range and precision are determined through the design of the size and the number of the throttle holes, so that the device has high adaptability.

(3) The invention is provided with a control system, the rotation of the throttle plate is regulated and controlled by the control system, an induction module in the control system analyzes differential pressure data transmitted by a differential pressure transmitter, when the differential pressure value is larger or smaller, a signal is sent to the control module, a processing module in the control system controls a motor to rotate the motor to drive the throttle plate to move, a proper throttle hole is selected according to the size of the differential pressure value to stabilize the differential pressure value in a range with smaller measurement error, and the differential pressure flowmeter can realize automatic adjustment to reduce the error after the density is changed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is an overall view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of the invention at A;

FIG. 5 is a schematic view of the structure of the rotating ring in the present invention.

Labeled as: 1 motion chamber, 2 measuring pipes, 3 supporting bases, 4 differential pressure transmitters, 5 connecting frames, 6 control instruments, 7 connecting rings, 8 pressure guide pipes, 9 rotating rings, 10 connecting rings, 11 fixing rings, 12 convex rings, 13 inserting grooves, 14 motors, 15 fixing sliding blocks, 16 throttling discs, 17 rotating gears, 18 matching insections, 18 throttling holes, 20 sealing rings, 21 output shafts, 22 fixing rotating rings, 23 blocking connecting frames, 24 fixing holes, 25 throttling plates, 26 pressure guide holes, 27 sliding grooves, 28 front stabilizing rotating rings, 29 rear stabilizing rotating rings, 30 inserting rings and 31 sealing rings.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. These examples are intended to illustrate the invention and are not intended to limit the scope of the invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided" and "connected" are to be interpreted broadly, e.g. as a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The structural features of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 1-5, a high-adaptability plate hole flowmeter comprises a motion chamber 1, a measuring tube 2, a supporting base 3, a control instrument 6 and a connecting ring 10, wherein the supporting base 3 is fixedly connected below the motion chamber 1, a throttling disc 16 is borne and protected by the motion chamber 1, a throttling plate 25 is arranged in the motion chamber 1, throttling is carried out through the throttling plate 25, the throttling disc 16 is fixed and is sealed by combining with a sealing ring 20, the measuring tube 2 is fixedly connected to two sides of the throttling plate 25, drainage is carried out through the measuring tube 2, a connecting ring 7 is fixedly connected to the measuring tube 2, the connecting tube 7 is fixedly connected with a fixed ring 11 through a blocking connecting frame 23, a rotating ring 9 is arranged between the connecting tube 7 and the fixed ring 11, the rotating ring 9 is rotatably fixed by using the connecting ring 7 and the fixed ring 11, and a fixed rotating ring 22 is connected to the inner side of the rotating ring 9, combine to fix go-between 10 through fixed swivel 22 and protruding ring 12, go-between 10 one end is equipped with insert ring 30, with pipeline and flowmeter interconnect through go-between 10, it is equipped with insertion groove 13 to link up ring 7 and correspond insert ring 30, and stability when realizing that go-between 10 is connected through insertion groove 13 and insert ring 30, the go-between 10 outside corresponds fixed swivel 22 and fixedly is equipped with protruding ring 12, the fixed sealing ring 31 that is equipped with on the go-between 10 realizes the sealed of go-between 10 kneck through sealing ring 31.

Referring to fig. 2-3, a throttle plate 16 is arranged between the throttle plates 25, a throttle hole 19 is arranged on the throttle plate 16, the differential pressure value at two ends of the throttle plate 25 is adjusted by adjusting the throttle hole 19, a sealing ring 20 matched with the throttle plate 25 is arranged around the throttle hole 19, fluid sealing is realized by the sealing ring 20, a matching insection 18 is arranged at the side edge of the throttle plate 16, an output shaft 21 of the motor 14 is fixedly connected with a rotary gear 17, the rotation of the throttle plate 16 is realized by the combination of the rotary gear 17 and the matching insection 18, so as to adjust different throttle holes 19 to the throttle plate 25, the rotary gear 17 is matched with the matching insection 18, a differential pressure transmitter 4 is fixedly connected above the motion chamber 1, the upper surface of the differential pressure transmitter 4 is fixedly connected with a control instrument 6 by a connecting frame 5, and a pressure guide pipe 8 is fixedly connected to the lower surface of the differential pressure transmitter 4, the pressure pipe 8 runs through into motion room 1 and the both sides survey buret 2 and is fixed continuous, the pressure pipe 8 runs through to surveying the inside of buret 2 through pressure guiding hole 26, through pressure guiding pipe 8 and pressure guiding hole 26 with pressure data transmission to differential pressure transmitter 4 and try to get differential pressure value, and then show on control instrument 6.

Referring to fig. 3, a hole is formed in the center of the throttle plate 25, and the throttle plate 25 is located at the center of the throttle plate 16 and connected with the throttle plate through a rotating shaft, so that the throttle plate 16 is fixed.

Referring to fig. 4, the rotating ring 9 is rotatably connected to the stationary ring 11 via a front stabilizing ring 28, and the rotating ring 10 is rotatably connected to the engaging ring 7 via a rear stabilizing ring 29, so that the rotating ring 9 is fixed in position and can rotate.

Referring to fig. 5, the fixed rotating ring 22 is uniformly distributed on the inner ring of the rotating ring 9, one end of the fixed rotating ring is connected through the rotating shaft, and the other end of the fixed rotating ring is located above the blocking connecting frame 23, so that when the rotating ring 9 rotates, the fixed rotating ring 22 is pushed up by the blocking connecting frame 23 to rotate inwards and contract.

The connection rings 10 have different models so that the connection rings 10 can be adapted to different sizes of pipes, the insertion grooves 13 are matched with the connection rings 10 of different models, and the connection rings 10 of different models have the corresponding projecting rings 12 of different sizes so that the insertion rings 30 on the connection rings 10 can be inserted into the insertion grooves 13.

Referring to fig. 4-5, the position of the protruding ring 12 corresponds to the fixed rotating ring 22, so that the fixed rotating ring 22 can be combined with the protruding ring 12 to fix the connection ring 10, the fixed ring 11 is symmetrically provided with the sliding grooves 27, the sliding grooves 27 are internally provided with the fixed sliders 15, the rotating ring 9 is uniformly provided with the symmetrical fixed holes 24, the rotating ring 9 is fixed by combining the fixed sliders 15 with the fixed holes 24, the position of each fixed hole 24 corresponds to the rotation degree of the rotating ring 9 and is matched with one end of the fixed slider 15, so that the fixed sliders 15 can be aligned with the fixed holes 24 after the fixed rotating ring 22 is fixed when different connection rings 10 are connected, the rotation degree of the rotating ring 9 corresponds to the jacking degree of the fixed rotating ring 22 by the blocking connection frame 23, and the jacking degree of the fixed rotating ring 22 by the blocking connection frame 23 corresponds to different types of connection rings 10.

The throttle bore 19 is of a different type on the throttle disk 16 and its centre point is on the same circle as the centre point of the hole in the centre of the throttle plate 25, so that the throttle bore 19 can be located at the centre point of the throttle plate 25.

The control instrument 6 is internally provided with a processor which is in signal connection with the motor 14, so that the control instrument 6 can control the motor 14.

A control system of a high-adaptability plate hole flowmeter is characterized in that a processor is arranged in a control instrument 6, a control system is arranged in the processor, and the processing system is divided into an induction module, a processing module and a display module;

the sensing module mutually senses with differential pressure transmitter 4, can judge the size of differential pressure by analyzing differential pressure data transmitted by differential pressure transmitter 4, and sends a signal to the control module when the differential pressure value is larger or smaller, so that the processing module adjusts the differential pressure value.

The processing module can control the motor 14, so that the motor rotates to drive the throttle disc 16 to move, a proper throttle hole 19 is selected according to the size of the differential pressure value, the differential pressure value is adjusted by adjusting the throttle holes 19 with different sizes, the differential pressure value is stabilized in a range with smaller measurement error, and the measurement accuracy is improved.

The display module is connected with the display screen, can convert differential pressure transmitter 4's numerical value to on the display screen.

The high-adaptability plate hole flowmeter and the control system thereof have the advantages of simple structure, easy operation, wide matched pipelines and convenient connection, can measure fluids with different densities, reduce measurement errors by automatically adjusting the size of the throttling hole, have wide measurable range and are suitable for popularization.

Specifically, referring to fig. 1 to 5, when the differential pressure flowmeter needs to be butted with a pipeline, the connection ring 10 matched with the pipeline is selected to be connected, the connection ring 10 is inserted into the fixed ring 11, the insertion ring 30 on the connection ring 10 is inserted into the corresponding insertion groove 13 on the adapter ring 7, the sealing ring 31 is tightly buckled on the surface of the adapter ring 7, the pipeline is connected with the differential pressure flowmeter, the rotating ring 9 is rotated, the fixed rotating ring 22 is jacked up and contracted inwards by the connecting frame 23 in the rotating process, after the fixed rotating ring 22 is contacted with the connection ring 10, the fixed slide block 15 in the sliding groove 13 on the fixed ring 11 is opposite to the position of the fixed hole 24, the rotating ring 9 is fixed by inserting the upper and lower fixed slide blocks 15 into the fixed hole 24, and the fixed rotating ring 22 is clamped with the raised ring 12, so that the connection ring 10 is fixed.

The rotation of the throttle plate 16 is regulated and controlled by a control system, a sensing module in the control system analyzes differential pressure data transmitted by a differential pressure transmitter 4, when the differential pressure value is larger or smaller, a signal is sent to the control module, a processing module in the control system controls the motor 14 to rotate the motor to drive the throttle plate 16 to move, a proper throttle hole 19 is selected according to the size of the differential pressure value, the size of the throttle hole 19 for different fluids is adjusted by the rotation of the throttle plate 16, when the measured fluid density is smaller, the throttle plate 16 is rotated to rotate the smaller throttle hole 19 to the central hole of the throttle plate 25, when the fluid density is larger, the throttle plate 16 is rotated to rotate the larger throttle hole 19 to the central hole of the throttle plate 25, and the differential pressure value at two sides of the throttle plate 25 is kept in a range convenient to measure.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.