CN210953012U - Liquid level measuring device integrating liquid level observation and monitoring alarm - Google Patents

Liquid level measuring device integrating liquid level observation and monitoring alarm Download PDF

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Publication number
CN210953012U
CN210953012U CN201921541631.9U CN201921541631U CN210953012U CN 210953012 U CN210953012 U CN 210953012U CN 201921541631 U CN201921541631 U CN 201921541631U CN 210953012 U CN210953012 U CN 210953012U
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liquid level
control box
pipe
main control
support frame
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CN201921541631.9U
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潘国民
夏天
戴秉佑
陈一凡
钟皓然
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潘国民
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Abstract

The utility model discloses a liquid level measuring device integrating liquid level observation, monitoring and alarming, which comprises a main control box, wherein a weighing unit and a mounting bracket circuit control board are arranged in the main control box; the liquid level control box comprises a main control box and is characterized in that a hydraulic unit is arranged below the main control box, a bearing rod and a main control box fixing support are connected between the main control box and the hydraulic unit, the hydraulic unit comprises a support frame, a liquid level pipe and an alarm lamp belt are arranged on the support frame respectively, the liquid level pipe is located right in front of the alarm lamp belt, a corrugated pipe, a liquid inlet fixing support and a liquid inlet connector are sequentially arranged at the bottom end of the liquid level pipe, the top end of the liquid level pipe is sleeved with the liquid level pipe. The utility model has the advantages of the utility model provides a liquid level is observed, monitoring and is reported to the police in liquid level measurement device of an organic whole can solve the liquid temperature change and influence inspection numerical value, and the current precision improves simultaneously, and the accuracy is high, and in the aspect of the installation is maintained, the suitability is stronger.

Description

Liquid level measuring device integrating liquid level observation and monitoring alarm
Technical Field
The utility model relates to a measure technical field, specifically be a liquid level measurement device of liquid level observation, monitoring warning in an organic whole.
Background
The water level data is closely related to human social life and production in field measurement of water levels of rivers, lakes, underground water and the like, the water level data is needed for planning, designing, constructing and managing water conservancy projects, the water level data is needed for engineering construction of bridges, ports, navigation channels, water supply and drainage and the like, and the water level data is more important in flood prevention and drought control and is the basis of hydrologic forecast and hydrologic information, and the water level data is important basic data in research of water level flow relation and analysis of river silt, ice condition and the like.
In daily life or production process, the machine with liquid also needs a liquid level monitoring device to observe the residual condition of the internal liquid level in real time, and the liquid level monitoring device is needed.
However, the liquid level monitoring devices in the market at present mainly have several forms, such as ultrasonic waves, capacitors and electrodes. The above forms have the following drawbacks: 1. ultrasonic liquid level sensors cannot use ultrasonic level meters in the occasions of water mist, media which are easy to generate a large amount of foam and volatile media, and are easy to absorb sound waves or interfere with sound wave emission, so that signals are lost and the precision is reduced. 2. The capacitance type liquid level sensor outputs nonlinear parasitic capacitance, and sensitivity and measurement accuracy of the distributed capacitance are easily influenced. 3. The electrode type can only display a plurality of water level values by a plurality of electrodes. When in use, the error is large, and the method is not suitable for wide popularization and use. Meanwhile, the ultrasonic wave and the capacitor can only be installed on the top of the liquid container due to the installation mode, so that the risk of falling into the liquid container exists during maintenance or replacement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a liquid level is observed, is monitored and is reported to the police in liquid level measurement device of an organic whole to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a liquid level measuring device integrating liquid level observation, monitoring and alarming comprises a main control box, wherein a weighing unit and a mounting bracket circuit control board are arranged in the main control box; the liquid level control box comprises a main control box and is characterized in that a hydraulic unit is arranged below the main control box, a bearing rod and a main control box fixing support are connected between the main control box and the hydraulic unit, the hydraulic unit comprises a support frame, a liquid level pipe and an alarm lamp belt are arranged on the support frame respectively, the liquid level pipe is located right in front of the alarm lamp belt, a corrugated pipe, a liquid inlet fixing support and a liquid inlet connector are sequentially arranged at the bottom end of the liquid level pipe, the top end of the liquid level pipe is sleeved with the liquid level pipe.
Preferably, the liquid inlet joint is installed on a liquid inlet fixing support, the liquid inlet fixing support is fixedly sleeved on the corrugated pipe, scales are arranged on the liquid level pipe, and a protective pipe is sleeved on the outer edge of the liquid level pipe.
Preferably, an outer thread locking threaded pipe is connected between the main control box and the main control box fixing support, the lower portion of the bearing rod is connected with the bearing joint, and the upper portion of the bearing rod is in fixed contact with the weighing sensor.
Preferably, the support frame comprises an L-shaped structure and an I-shaped structure.
Preferably, the support frame is I-shaped, the support frame comprises a main control box fixing support and a bottom plate, the bottom plate is arranged at the bottom of the support frame and is vertical to the axis of the support frame, a liquid level pipe fixing clamp ring is arranged between the corrugated pipe and the liquid level pipe, the corrugated pipe and the liquid level pipe are coaxially arranged, and the liquid level pipe is vertically connected with the main control box; the upper part of the bearing rod is fixedly connected with the weighing sensor, and the outer edge of the liquid level pipe is sleeved with a protective sleeve.
Preferably, the support frame is the L type, and the support frame includes master control box fixed bolster and inlet fixed bolster, and the inlet fixed bolster is horizontal perpendicular with the support frame axis, and inlet fixed bolster top is provided with the bellows, is provided with the fixed elbow of liquid level between bellows and the liquid level pipe, and bearing bar top and weighing sensor fixed connection, the liquid level pipe outer fringe has cup jointed the lag tube.
Preferably, the inside human response module that still is provided with of master control box, human response module will export for the singlechip, and the singlechip is with this signal output for warning lamp area, lets the alarm lamp often bright to see the liquid level pipe actual position height.
Preferably, the main control box is internally provided with a display screen, a zero liquid level calibration button and a full liquid level calibration button, and the display screen is a 4-digit nixie tube.
Advantageous effects
The device adopts a weighing measurement inspection mode, and the change of the liquid temperature can not influence the inspection value of the device, so that the device is not in a field environment; compared with the prior art, the output current precision is improved, and the accuracy is high; in the installation, only need install the device in liquid container, need not to hang the device in the liquid container top, simple to operate also can not go out to have the risk that has the fall into liquid container when having maintained or changed simultaneously, consequently, to sum up, this device is wider for current user plane, and it is more convenient to maintain and change, is worth the application and promotes.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the main control box of the present invention;
FIG. 3 is a perspective view of the main control box of the present invention;
FIG. 4 is a schematic view showing the connection relationship between the liquid level pipe and the bellows pipe according to the present invention;
FIG. 5 is a schematic view of the L-shaped structure of the present invention;
FIG. 6 is a schematic view of the alarm lamp of the present invention with a position relationship;
FIG. 7 is a schematic view of the installation relationship of the present invention;
fig. 8 is a schematic view of the L-shaped installation relationship of the present invention.
In the figure: 1-a main control box, 2-a weighing sensor, 3-a sensor mounting bracket, 4-a bearing rod, 5-a circuit board, 6-an external thread locking threaded pipe, 7-a main control box fixing bracket, 8-a supporting bracket, 9-a liquid inlet fixing bracket, 10-a liquid level pipe bearing joint, 11-a liquid level pipe, 12-a corrugated pipe, 13-a liquid inlet joint, 14-an alarm lamp strip, 15-a display screen and 16-a human body induction module;
1 a-a zero liquid level calibration button, 1 b-a full liquid level calibration button, 8 a-a bottom plate, 12 a-a liquid level pipe fixing clamp ring and 12 b-a liquid level fixing elbow.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-7, a liquid level measuring device integrating liquid level observation, monitoring and alarming comprises a main control box 1, wherein a weighing unit and a circuit control board 5 of a mounting bracket 3 are arranged in the main control box 1; the main control box 1 below is provided with the hydraulic unit, be connected with bearing bar 4 and main control box fixed bolster 7 between main control box 1 and the hydraulic unit, the hydraulic unit includes support frame 8, be provided with liquid level pipe 11 and warning lamp area 14 on the support frame 8 respectively, liquid level pipe 11 is located warning lamp area 14 dead ahead, 11 bottoms of liquid level pipe have set gradually bellows 12, inlet fixed bolster 9 and liquid inlet joint 13, liquid level pipe bearing joint 10 has been cup jointed on 11 tops of liquid level pipe, warning lamp area 14 and main control box 1 electricity federation.
The liquid inlet joint 13 is installed on the liquid inlet fixing support 9, the liquid inlet fixing support 9 is fixedly sleeved on the corrugated pipe 12, scales are arranged on the liquid level pipe 11, the display value of the scales is percentage, and the outer edge of the liquid level pipe 11 is sleeved with a protective pipe.
An outer-tooth locking threaded pipe 6 is connected between the main control box 1 and the main control box fixing support 7, the lower portion of the bearing rod 4 is connected with the bearing joint 10, and the upper portion of the bearing rod 4 is in fixed contact with the weighing sensor 2.
The support frame 8 is I-shaped, the support frame 8 comprises a main control box fixing support 7 and a bottom plate 8a, the bottom plate 8a is arranged at the bottom of the support frame 8 and is longitudinally vertical to the axis of the support frame 8, a liquid level pipe fixing clamp ring 12a is arranged between the corrugated pipe 12 and the liquid level pipe 11, the corrugated pipe 12 and the liquid level pipe 11 are coaxially arranged, and the liquid level pipe 11 is vertically connected with the main control box 1; the upper part of the bearing rod 4 is fixedly connected with the weighing sensor 2, and the outer edge of the liquid level pipe 11 is sleeved with a protective sleeve.
The inside human response module 16 that still is provided with of master control box 1, human response module 16 will export for the singlechip, and the singlechip will be given this signal output to warning lamp area 14, lets the alarm lamp often light to see the liquid level pipe actual position height.
The main control box 1 is also internally provided with a display screen 15, a zero calibration liquid level button 1a and a full calibration liquid level button 1b, and the display screen is a 4-digit nixie tube.
Example 2
Referring to fig. 1 to 6 and 8, a liquid level measuring device integrating liquid level observation, monitoring and alarming comprises a main control box 1, wherein a weighing unit and a circuit control board 5 of a mounting bracket 3 are arranged in the main control box 1; the main control box 1 below is provided with the hydraulic unit, be connected with bearing bar 4 and main control box fixed bolster 7 between main control box 1 and the hydraulic unit, the hydraulic unit includes support frame 8, be provided with liquid level pipe 11 and warning lamp area 14 on the support frame 8 respectively, liquid level pipe 11 is located warning lamp area 14 dead ahead, 11 bottoms of liquid level pipe have set gradually bellows 12, inlet fixed bolster 9 and liquid inlet joint 13, liquid level pipe bearing joint 10 has been cup jointed on 11 tops of liquid level pipe, warning lamp area 14 and main control box 1 electricity federation.
Preferably, the liquid inlet joint 13 is installed on the liquid inlet fixing support 9, the liquid inlet fixing support 9 is fixedly sleeved on the corrugated pipe 12, the liquid level pipe 11 is provided with scales, the display value of the scales is percentage, and the outer edge of the liquid level pipe 11 is sleeved with a protective pipe.
An outer-tooth locking threaded pipe 6 is connected between the main control box 1 and the main control box fixing support 7, the lower portion of the bearing rod 4 is connected with the bearing joint 10, and the upper portion of the bearing rod 4 is in fixed contact with the weighing sensor 2.
The support frame 8 is I-shaped, the support frame 8 comprises a main control box fixing support 7 and a bottom plate 8a, the bottom plate 8a is arranged at the bottom of the support frame 8 and is longitudinally vertical to the axis of the support frame 8, a liquid level pipe fixing clamp ring 12a is arranged between the corrugated pipe 12 and the liquid level pipe 11, the corrugated pipe 12 and the liquid level pipe 11 are coaxially arranged, and the liquid level pipe 11 is vertically connected with the main control box 1; the upper part of the bearing rod 4 is fixedly connected with the weighing sensor 2, and the outer edge of the liquid level pipe 11 is sleeved with a protective sleeve.
Support frame 8 is the L type, and support frame 8 includes master control box fixed bolster 7 and inlet fixed bolster 9, and inlet fixed bolster 9 is horizontal perpendicular with 8 axes of support frame, and inlet fixed bolster 9 top is provided with bellows 12, is provided with liquid level fixed elbow 12b between bellows 12 and the liquid level pipe 11, 4 tops of bearing bar and weighing sensor 2 fixed connection, and 11 outer edges of liquid level pipe have cup jointed the lag tube.
The inside human response module 16 that still is provided with of master control box 1, human response module 16 will export for the singlechip, and the singlechip will be given this signal output to warning lamp area 14, lets the alarm lamp often light to see the liquid level pipe actual position height.
The main control box 1 is also internally provided with a display screen 15, a zero calibration liquid level button 1a and a full calibration liquid level button 1b, and the display screen is a 4-digit nixie tube.
In the test process, the water level of the real object is tested: calibration of bellows Upper end interface for zero Water level calibration bellows Upper end interface rise 1000 MM department for full liquid level, low liquid level alarm value set to 15%, high liquid level alarm value set to 95% (at room temperature, liquid level pipe inner diameter 25MM, with 5KG weighing sensor)
The liquid level tube 11 is influenced by air flow and water wave fluctuation but is low in influence, the display precision of the nixie tube is not enough to capture, part of the output precision which slightly fluctuates is induced by water wave fluctuation and air flow, and part of the output precision is influenced by temperature drift due to the fact that the power-on operational amplifier circuit is electrified for 300 seconds, the output current is kept in a stable state, at the moment, the output current is increased by 0.09MA and converted into the water level height of about 5MM (0.5%), the precision of the device is not enough to be influenced, and the precision of the device is greatly improved.
The technical parameters of the device are as follows:
input voltage: DC 24V
And (4) reverse connection prevention protection.
And (4) short-circuit protection.
Outputting 0mA current signal when single chip microcomputer fails to output
Output current 4 ~ 20mA (output +24V voltage during no load)
Output current precision: 0.01953125MA (0.12%)
The liquid level height is calculated, a digital-analog chip with the accuracy of 1/1024 is used for converting the liquid level height into a 4-20 MA current signal for other equipment to use, in order to ensure that the equipment can stably output 0MA when a predictable fault occurs, the device outputs a 4MA electric signal with the loss of 204.8/1024-20% accuracy, therefore, the accuracy of the output current signal is 16/(1024-80%) -0.01953125 MA (0.12%), and the accuracy is more accurate compared with the accuracy of a capacitor type, namely 0.2% and 1% of ultrasonic waves.
The display screen 15 of the device is a 4-bit nixie tube, the function of the device is to display the numerical value of the set parameter and the liquid level duty ratio calculated in the single chip microcomputer, the ratio (accurate to 0.1 percent and displayed when the device is electrified) can be detected whether the sensor is abnormal or not by observing the ratio displayed by the nixie tube and the liquid duty ratio of the actual liquid level tube, and the sensor is calibrated once again if the difference ratio between the displayed liquid level value and the actual liquid level is larger.
It should be noted here that in the utility model discloses "I" type and "L" type testing process, "L" type adopt be that the weight that the measuring is liquid level pipe 11 and liquid, "I" type adopts that liquid gets into the bellows and produces to let bellows 12 produce a vertical ascending deformation power and let liquid level pipe 11 lighten, the change of this power of weighing module response, consequently, in the installation, "L" type bearing bar 4 top and weighing sensor 2 front fixed contact, "I" type bearing bar 4 top and weighing sensor 2 back fixed contact.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a liquid level measurement device of liquid level observation, monitoring warning in an organic whole which characterized in that: the weighing device comprises a main control box (1), wherein a weighing unit, a mounting bracket (3) and a circuit control board (5) are arranged in the main control box (1); the liquid level monitoring box comprises a main control box (1), a hydraulic unit is arranged below the main control box (1), a bearing rod (4) and a main control box fixing support (7) are connected between the main control box (1) and the hydraulic unit, the hydraulic unit comprises a support frame (8), a liquid level pipe (11) and an alarm lamp belt (14) are arranged on the support frame (8) respectively, the liquid level pipe (11) is located right in front of the alarm lamp belt (14), a corrugated pipe (12), a liquid inlet fixing support (9) and a liquid inlet connector (13) are sequentially arranged at the bottom end of the liquid level pipe (11), a liquid level pipe bearing connector (10) is sleeved at the top end of the liquid level pipe (11), and the alarm lamp.
2. The liquid level measuring device integrating liquid level observation, monitoring and alarming as claimed in claim 1, wherein: the liquid inlet joint (13) is installed on the liquid inlet fixing support (9), the liquid inlet fixing support (9) is fixedly sleeved on the corrugated pipe (12), scales are arranged on the liquid level pipe (11), and the outer edge of the liquid level pipe (11) is sleeved with the protective pipe.
3. The liquid level measuring device integrating liquid level observation, monitoring and alarming as claimed in claim 1, wherein: an outer tooth locking threaded pipe (6) is connected between the main control box (1) and the main control box fixing support (7), the lower portion of the bearing rod (4) is connected with the bearing joint (10), and the upper portion of the bearing rod (4) is in fixed contact with the weighing sensor (2).
4. The liquid level measuring device integrating liquid level observation, monitoring and alarming as claimed in claim 1, wherein: the support frame (8) comprises an L-shaped structure and an I-shaped structure.
5. The liquid level measuring device integrating liquid level observation, monitoring and alarming as claimed in claim 1, wherein: the support frame (8) is I-shaped, the support frame (8) comprises a main control box fixing support (7) and a bottom plate (8a), the bottom plate (8a) is arranged at the bottom of the support frame (8) and is vertical to the axis of the support frame (8), a liquid level pipe fixing clamping ring (12a) is arranged between the corrugated pipe (12) and the liquid level pipe (11), the corrugated pipe (12) and the liquid level pipe (11) are coaxially arranged, and the liquid level pipe (11) is vertically connected with the main control box (1); the upper part of the bearing rod (4) is fixedly connected with the weighing sensor (2), and the outer edge of the liquid level pipe (11) is sleeved with a protective sleeve.
6. The liquid level measuring device integrating liquid level observation, monitoring and alarming as claimed in claim 1, wherein: support frame (8) are the L type, and support frame (8) are including master control box fixed bolster (7) and inlet fixed bolster (9), and inlet fixed bolster (9) are horizontal perpendicular with support frame (8) axis, and inlet fixed bolster (9) top is provided with bellows (12), is provided with liquid level fixed elbow (12b) between bellows (12) and liquid level pipe (11), and bearing bar (4) top and weighing sensor (2) fixed connection, and protective sleeve has been cup jointed to liquid level pipe (11) outer fringe.
7. The liquid level measuring device integrating liquid level observation, monitoring and alarming as claimed in claim 1, wherein: the main control box (1) is internally provided with a human body induction module (16), the human body induction module (16) outputs a signal to the single chip microcomputer, and the single chip microcomputer outputs the signal to the alarm lamp strip (14) to enable the alarm lamp to be normally on so as to observe the actual position height of the liquid level pipe.
8. The liquid level measuring device integrating liquid level observation, monitoring and alarming as claimed in claim 1, wherein: the main control box (1) is internally provided with a display screen (15), a zero calibration liquid level button (1a) and a full calibration liquid level button (1b), and the display screen is a 4-digit nixie tube.
CN201921541631.9U 2019-09-17 2019-09-17 Liquid level measuring device integrating liquid level observation and monitoring alarm Active CN210953012U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921541631.9U CN210953012U (en) 2019-09-17 2019-09-17 Liquid level measuring device integrating liquid level observation and monitoring alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921541631.9U CN210953012U (en) 2019-09-17 2019-09-17 Liquid level measuring device integrating liquid level observation and monitoring alarm

Publications (1)

Publication Number Publication Date
CN210953012U true CN210953012U (en) 2020-07-07

Family

ID=71380050

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921541631.9U Active CN210953012U (en) 2019-09-17 2019-09-17 Liquid level measuring device integrating liquid level observation and monitoring alarm

Country Status (1)

Country Link
CN (1) CN210953012U (en)

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