阅读说明：本技术 一种防波动液位测量装置 (Anti-fluctuation liquid level measuring device ) 是由 于冲 于 2021-08-13 设计创作，主要内容包括：本发明公开了一种防波动液位测量装置,包括箱体,用于显示液位状态,起到密封保护作用；连接管,包括气管和液管,气管用于筒体与被测装置之间的气体连通,液管用于筒体与被测装置之间的液体连通；第一防波动装置,设置在液管上,用于防止被测装置内的液体波动影响箱体的液位测量；第二防波动装置,设置在箱体上,用于延缓箱体内的液位变化速度；本发明通过第一防波动装置和第二防波动装置进行双重程度的防波动处理,最大幅度降低被测装置液位波动对测量装置的影响,提高液位测量装置的液位测量准确度,减少测量的误差。(The invention discloses an anti-fluctuation liquid level measuring device, which comprises a box body, a liquid level sensor, a liquid level display and a liquid level controller, wherein the box body is used for displaying the liquid level state and playing a role in sealing protection; the connecting pipe comprises an air pipe and a liquid pipe, the air pipe is used for communicating air between the cylinder body and the device to be detected, and the liquid pipe is used for communicating liquid between the cylinder body and the device to be detected; the first anti-fluctuation device is arranged on the liquid pipe and used for preventing the liquid fluctuation in the device to be measured from influencing the liquid level measurement of the box body; the second anti-fluctuation device is arranged on the box body and used for delaying the liquid level change speed in the box body; according to the invention, the first anti-fluctuation device and the second anti-fluctuation device are used for carrying out anti-fluctuation processing to double degrees, so that the influence of the liquid level fluctuation of the device to be measured on the measuring device is reduced to the maximum extent, the liquid level measuring accuracy of the liquid level measuring device is improved, and the measuring error is reduced.)

1. An anti-fluctuation liquid level measuring device, comprising:

the box body is used for displaying the liquid level state and playing a role in sealing protection;

the connecting pipe comprises an air pipe and a liquid pipe, the air pipe is used for communicating air between the cylinder body and the device to be detected, and the liquid pipe is used for communicating liquid between the cylinder body and the device to be detected;

the first anti-fluctuation device is arranged on the liquid pipe and used for preventing the liquid fluctuation in the device to be measured from influencing the liquid level measurement of the box body;

and the second anti-fluctuation device is arranged on the box body and used for delaying the liquid level change speed in the box body.

2. The surge-resistant liquid level measuring device according to claim 1,

the box includes the shell, turns over board indicator, magnetic ball, kickboard, sealed lid, ring flange and blowoff valve, the gas pocket has been seted up on the upper portion of shell, trachea and pore connection, the liquid hole has been seted up to the lower part of shell, liquid pipe and liquid jogged joint, sealed lid is connected with the upper end of shell, the ring flange is connected with the lower extreme of shell, the blowoff valve is connected with the ring flange, turn over the board indicator and install on the inner wall of shell, the kickboard sets up in the shell, the magnetic ball sets up on the kickboard, the magnetic ball carries out the demonstration of liquid level state with turning over the cooperation of board indicator.

3. The surge-resistant level measurement device according to claim 2,

the turning plate indicator comprises a red and white marking ball and a scale, the scale is fixedly installed on the inner wall of the cylinder body, the red and white marking ball is magnetic and overturns along with the up-and-down floating of the magnetic floater, and the red and white marking ball is evenly installed on one side of the scale.

4. The surge-resistant liquid level measuring device according to claim 3,

still include alarm device, alarm device includes upper limit alarm and lower limit alarm, the upper portion at the shell is installed to the upper limit alarm, the lower part at the shell is installed to the lower limit alarm.

5. The surge-resistant liquid level measuring device according to claim 1,

the first anti-fluctuation device comprises a first controller, a flow velocity sensor, a backflow cylinder, a movable column, a linear motor, a first stop valve, a second stop valve and a backflow pipe, wherein the flow velocity sensor is arranged in the liquid pipe and used for detecting the flow velocity of liquid in the liquid pipe, the flow velocity sensor is connected with the first controller, the backflow cylinder is installed on the liquid pipe through the first stop valve, one end of the backflow pipe is connected with the backflow cylinder through the second stop valve, the other end of the backflow pipe is connected with the liquid pipe, the linear motor is installed in the backflow cylinder, the movable column is connected with the output end of the linear motor, and the control end of the linear motor is connected with the first controller.

6. The surge-resistant level measurement device according to claim 2,

the second anti-fluctuation device comprises a battery, an electronic switch, a second controller, a floating ball, a connecting rod, a rotating shaft, a first polar plate, a curved surface mechanism, a plurality of second polar plates, a spring and a movable block, the outer shell comprises an inner shell and a protective shell sleeved outside the inner shell, the floating ball is arranged at the lower part of the inner shell, one end of the connecting rod is connected with the floating ball, the other end of the connecting rod is connected with the first polar plate through the rotating shaft arranged on the inner shell, the curved surface mechanism is arranged on the inner wall of the protective shell, the plurality of second polar plates are uniformly arranged on the curved surface mechanism, the first polar plates and the second polar plates form a capacitor, the plurality of second polar plates and the first polar plates are connected with the second controller, the floating plate is provided with a cavity, one end of the spring is connected with the bottom of the cavity, the other end of the spring is connected with the movable block, the movable block seals the cavity and then is abutted against the inner wall of the inner shell, the spring is connected with the battery through the electronic switch, and the control end of the electronic switch is connected with the second controller.

7. The surge-resistant liquid level measuring device according to claim 6,

still include the sucking disc, the sucking disc is installed in the one side that the movable block faced the inner shell.

8. The surge-resistant level measurement device according to claim 4,

and the upper limit alarm and the lower limit alarm are both LED lamps.

Technical Field

The invention relates to the technical field of metering equipment, in particular to an anti-fluctuation liquid level measuring device.

Background

Generally, manual measurement is mostly adopted for measuring the liquid level in the reservoir, and the measurement method is high in labor intensity, unsafe factors exist, and the precision cannot be guaranteed. In addition, the current magnetostrictive liquid level meter is directly sleeved with a measuring floating piece of the magnetostrictive liquid level meter, and is easily influenced by the starting of an in-well pump during measurement, so that the measured data deviation is caused.

In other liquid level meters currently used for measuring liquid levels of boilers, oil tanks and the like, the liquid level meter is subjected to large fluctuation caused by liquid fluctuation in a device to be measured, and the measurement accuracy of the liquid level meter is reduced.

For example, chinese patent CN201420442945.4 discloses a fluctuating liquid level measuring device. The application is that the interior of the submerged pipe is basically in a stable state through the isolation of the submerged pipe, and the liquid level detected by the radar liquid level meter is just the liquid level of the part and is not interfered by the fluctuation of the internal liquid level; but when the liquid level fluctuation of the measured device is large, the isolation effect can be greatly reduced, so that the measuring device still can be influenced by the liquid level fluctuation, and the measuring accuracy is further reduced.

Disclosure of Invention

The invention mainly solves the problem of poor measurement accuracy of the liquid level measuring device caused by large liquid level fluctuation in the prior art; the utility model provides a prevent undulant liquid level measurement device, reduce the influence of being surveyed device liquid level fluctuation to measuring device, improve liquid level measurement accuracy of liquid level measurement device, reduce measuring error.

The technical problem of the invention is mainly solved by the following technical scheme: an anti-fluctuation liquid level measuring device comprises a box body, a liquid level measuring device and a liquid level measuring device, wherein the box body is used for displaying a liquid level state and playing a role in sealing protection; the connecting pipe comprises an air pipe and a liquid pipe, the air pipe is used for communicating air between the cylinder body and the device to be detected, and the liquid pipe is used for communicating liquid between the cylinder body and the device to be detected; the first anti-fluctuation device is arranged on the liquid pipe and used for preventing the liquid fluctuation in the device to be measured from influencing the liquid level measurement of the box body; and the second anti-fluctuation device is arranged on the box body and used for delaying the liquid level change speed in the box body. Through first anti-fluctuation device and second anti-fluctuation device carry out dual degree's anti-fluctuation processing, maximum amplitude reduces by survey device liquid level fluctuation to measuring device's influence, improves liquid level measurement device's the liquid level measurement degree of accuracy, reduces measuring error.

Preferably, the box body comprises a shell, a turning plate indicator, a magnetic ball, a floating plate, a sealing cover, a flange plate and a blow-down valve, wherein the upper part of the shell is provided with an air hole, an air pipe is connected with the air hole, the lower part of the shell is provided with a liquid hole, a liquid pipe is connected with the liquid hole, the sealing cover is connected with the upper end of the shell, the flange plate is connected with the lower end of the shell, the blow-down valve is connected with the flange plate, the turning plate indicator is installed on the inner wall of the shell, the floating plate is arranged in the shell, the magnetic ball is arranged on the floating plate, and the magnetic ball and the turning plate indicator are matched to display the liquid level state. The liquid level state is visually displayed through the turning plate indicator, sediment is discharged through the flange plate and the drain valve, and the space in the cylinder body keeps good sealing performance through the sealing cover.

Preferably, the turning plate indicator comprises a red and white marking ball and a scale, the scale is fixedly arranged on the inner wall of the cylinder body, the red and white marking ball is magnetic and overturns along with the up-and-down floating of the magnetic floater, and the red and white marking ball is uniformly arranged on one side of the scale. The state display of the liquid level is more obvious through the red and white indication ball and the scale.

Preferably, the alarm device further comprises an alarm device, the alarm device comprises an upper limit alarm and a lower limit alarm, the upper limit alarm is mounted on the upper portion of the shell, and the lower limit alarm is mounted on the lower portion of the shell. And an upper limit alarm and a lower limit alarm are arranged, so that the liquid level can effectively alarm when the liquid level is too high or too low.

Preferably, the first anti-fluctuation device includes a first controller, a flow rate sensor, a backflow cylinder, a movable column, a linear motor, a first stop valve, a second stop valve, and a backflow pipe, the flow rate sensor is disposed in the liquid pipe and used for detecting a flow rate of liquid in the liquid pipe, the flow rate sensor is connected to the first controller, the backflow cylinder is mounted on the liquid pipe through the first stop valve, one end of the backflow pipe is connected to the backflow cylinder through the second stop valve, the other end of the backflow pipe is connected to the liquid pipe, the linear motor is mounted in the backflow cylinder, the movable column is connected to an output end of the linear motor, and a control end of the linear motor is connected to the first controller. Detect the velocity of flow of liquid in the liquid pipe through velocity of flow sensor, when the liquid fluctuation in the device under test is great, the liquid velocity of flow in the entering liquid pipe can produce the change, first controller sets up the velocity of flow threshold, but when the velocity of flow that detects surpassed the velocity of flow threshold, open first stop valve, control linear electric motor work, pull up the activity post, activity post and the inseparable butt of backward flow section of thick bamboo inner wall, at the in-process of pulling up on the activity post, upwards adsorb liquid, make partial liquid get into the backward flow section of thick bamboo, then close first stop valve, open the second stop valve, the activity post pushes down, make the liquid in the backward flow section of thick bamboo return to in the liquid pipe from the back flow, control linear electric motor's operating speed, make the speed of pushing down of activity post invariable, can make liquid gently return to in the liquid pipe, reduce volatility.

Preferably, the second anti-fluctuation device comprises a battery, an electronic switch, a second controller, a floating ball, a connecting rod, a rotating shaft, a first polar plate, a curved surface mechanism, a plurality of second polar plates, a spring and a movable block, the outer shell comprises an inner shell and a protective shell sleeved outside the inner shell, the floating ball is arranged at the lower part of the inner shell, one end of the connecting rod is connected with the floating ball, the other end of the connecting rod is connected with the first polar plate through the rotating shaft arranged on the inner shell, the curved surface mechanism is arranged on the inner wall of the protective shell, the plurality of second polar plates are uniformly arranged on the curved surface mechanism, the first polar plates and the second polar plates form a capacitor, the plurality of second polar plates and the first polar plates are both connected with the second controller, the floating plate is provided with a cavity, one end of the spring is connected with the bottom of the cavity, the other end of the spring is connected with the movable block, the movable block seals the cavity and then is abutted against the inner wall of the inner shell, the spring is connected with the battery through the electronic switch, and the control end of the electronic switch is connected with the second controller. The spring is in circular telegram shrink state, hide the movable block in the kickboard, when liquid in the inner shell increases with very fast speed, liquid strikes the floater, make the floater go up fast, the floater motion drives first polar plate through connecting rod and pivot and rotates, the capacitance value that first polar plate and second polar plate constitute sends and changes, the second controller judges whether the liquid in the inner shell changes too fast through the change situation of inspection capacitance value, if confirm change rate too fast, then through the inner wall of movable block butt inner shell, through increaseing frictional force, and then delay the rising change of kickboard and magnetic ball, fall the back when liquid change rate, recharge the spring, retrieve the movable block and hide, the frictional force of kickboard and inner shell inner wall reduces, reply normally.

Preferably, the device further comprises a suction cup, and the suction cup is arranged on one surface of the movable block, which faces the inner shell. Through the sucking disc, the adsorption affinity of multiplicable movable block and inner shell inner wall effectively delays the floating speed of kickboard.

Preferably, the upper limit alarm and the lower limit alarm are both LED lamps. The alarm is given through the LED lamp, and the alarm is more visual.

The invention has the beneficial effects that: through first anti-fluctuation device and second anti-fluctuation device carry out dual degree's anti-fluctuation processing, maximum amplitude reduces by survey device liquid level fluctuation to measuring device's influence, improves liquid level measurement device's the liquid level measurement degree of accuracy, reduces measuring error.

Drawings

Fig. 1 is a schematic structural diagram of a liquid level measuring apparatus according to a first embodiment of the present invention.

In the figure, the device comprises a shell 1, a shell 2, a turning plate indicator 3, a sealing cover 4, a floating plate 5, a magnetic ball 6, a floating ball 7, a curved surface mechanism 8, a first pole plate 9, a second pole plate 10, a flange plate 11, a drain valve 12, a liquid pipe 13, an air pipe 14, a flow rate sensor 15, a backflow cylinder 16, a backflow pipe 17, a linear motor 18 and a movable column.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

The first embodiment is as follows: an anti-fluctuation liquid level measuring device comprises a box body, a liquid level measuring device and a liquid level measuring device, wherein the box body is used for displaying a liquid level state and playing a role in sealing protection; the connecting pipe comprises an air pipe 13 and a liquid pipe 12, the air pipe is used for communicating air between the cylinder body and the device to be detected, and the liquid pipe is used for communicating liquid between the cylinder body and the device to be detected; the first anti-fluctuation device is arranged on the liquid pipe and used for preventing the liquid fluctuation in the device to be measured from influencing the liquid level measurement of the box body; the second anti-fluctuation device is arranged on the box body and used for delaying the liquid level change speed in the box body; alarm device, alarm device include upper limit alarm and lower limit alarm, and the upper portion at the shell is installed to the upper limit alarm, and the lower part at the shell is installed to the lower limit alarm, and upper limit alarm and lower limit alarm are the LED lamp.

The box includes shell 1, turn over board indicator 2, magnetic ball 5, kickboard 4, sealed lid 3, ring flange 10 and blowoff valve 11, the gas pocket has been seted up on the upper portion of shell, the trachea is connected with the gas pocket, the liquid hole has been seted up to the lower part of shell, liquid pipe and liquid jogged joint, sealed lid is connected with the upper end of shell, the ring flange is connected with the lower extreme of shell, the blowoff valve is connected with the ring flange, turn over the board indicator and install on the inner wall of shell, the kickboard sets up in the shell, the magnetic ball sets up on the kickboard, the magnetic ball carries out liquid level state's demonstration with turning over the cooperation of board indicator.

The turning plate indicator comprises a red and white marking ball and a scale, the scale is fixedly installed on the inner wall of the cylinder body, the red and white marking ball is magnetic and overturns along with the up-and-down floating of the magnetic floater, and the red and white marking ball is evenly installed on one side of the scale.

The first anti-fluctuation device comprises a first controller, a flow velocity sensor 14, a backflow cylinder 15, a movable column 18, a linear motor 17, a first stop valve, a second stop valve and a backflow pipe 16, the flow velocity sensor is arranged in a liquid pipe and used for detecting the flow velocity of liquid in the liquid pipe, the flow velocity sensor is connected with the first controller, the backflow cylinder is installed on the liquid pipe through the first stop valve, one end of the backflow pipe is connected with the backflow cylinder through the second stop valve, the other end of the backflow pipe is connected with the liquid pipe, the linear motor is installed in the backflow cylinder, the movable column is connected with the output end of the linear motor, and the control end of the linear motor is connected with the first controller.

The second anti-fluctuation device comprises a battery, an electronic switch, a second controller, a floating ball 6, a connecting rod, a rotating shaft, a first polar plate 8, a curved surface mechanism 7, a plurality of second polar plates 9, a spring and a movable block, wherein the outer shell comprises an inner shell and a protective shell sleeved outside the inner shell, the floating ball is arranged at the lower part of the inner shell, one end of the connecting rod is connected with the floating ball, the other end of the connecting rod is connected with the first polar plate through the rotating shaft arranged on the inner shell, the curved surface mechanism is arranged on the inner wall of the protective shell, the plurality of second polar plates are uniformly arranged on the curved surface mechanism, the first polar plate and the second polar plates form a capacitor, the plurality of second polar plates and the first polar plate are both connected with the second controller, the floating plate is provided with a cavity, one end of the spring is connected with the bottom of the cavity, the other end of the spring is connected with the movable block, the movable block abuts against the inner wall of the inner shell after sealing the cavity, and the spring is connected with the battery through the electronic switch, the control end of the electronic switch is connected with the second controller, and a sucker is arranged on one surface of the movable block facing the inner shell.

In concrete application, liquid level measurement device passes through the communicating vessel principle and realizes the detection to the device liquid level of being surveyed, and along with the change of being surveyed the device liquid level, liquid level measurement device's liquid level is along with changing, drives red and white batch ball through the floater and overturns, combines the scale for liquid level measurement device can obviously audio-visual demonstration by the liquid level state of being surveyed the device.

Meanwhile, the change also causes the floating ball and the red and white batch ball in the liquid level measuring device to repeatedly work for many times to cause the fault, thereby causing the accuracy of the subsequent liquid level measurement to be reduced and even directly damaged.

Therefore, when flow sensor detects that the velocity of flow in the liquid tube exceeds the set threshold value, then mark the liquid in the device under test and great fluctuation appears, first stop valve is opened to first controller, control linear electric motor work, pull up the activity post, activity post and the inseparable butt of backward flow section of thick bamboo inner wall, in-process at activity post pull-up, upwards adsorb liquid, make partial liquid get into backward flow section of thick bamboo, then close first stop valve, open the second stop valve, the activity post pushes down, make the liquid in the backward flow section of thick bamboo return to in the liquid pipe from the back flow, linear electric motor's operating speed has been controlled, make the speed of pushing down of activity post invariable, can make liquid gently return to in the liquid tube, reduce volatility.

Even first anti-fluctuation device has carried out preliminary regulation, the liquid speed that gets into in the box still can accelerate the change, when liquid in the inner shell increases with very fast speed, liquid strikes the floater, make the floater go up the high-speed come-up, the floater motion drives first polar plate through connecting rod and pivot and rotates, the capacitance value that first polar plate and second polar plate constitute sends the change, the second controller judges whether the liquid in the inner shell changes too fast through the change situation of inspection capacitance value, if confirm change rate too fast, then through the inner wall of movable block butt inner shell, through increaseing frictional force, and then delay the ascending change of floating plate and magnetic ball, after liquid change rate falls, recharge the spring, retrieve the movable block and hide, the frictional force of floating plate and inner shell inner wall reduces, it is normal to reply.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.