CN106404100A - Suspending hammer weighing type liquid level gauge - Google Patents
Suspending hammer weighing type liquid level gauge Download PDFInfo
- Publication number
- CN106404100A CN106404100A CN201610864518.9A CN201610864518A CN106404100A CN 106404100 A CN106404100 A CN 106404100A CN 201610864518 A CN201610864518 A CN 201610864518A CN 106404100 A CN106404100 A CN 106404100A
- Authority
- CN
- China
- Prior art keywords
- suspending hammer
- electrically connected
- chip microcomputer
- liquid level
- load cells
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/0038—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm using buoyant probes
Abstract
The invention discloses a suspending hammer weighing type liquid level gauge featured with simple structure, reliable operation and low cost and applicable to all operating conditions. The structure is as follows: a suspending hammer (2) is a column-shaped part provided with uniform upper and lower cross sections and immersed in detected liquid (4), the suspending hammer is hung in a container (1), the lower end of a connecting rod (5) is fixedly connected with the upper end of the suspending hammer (2), the upper end of the connecting rod (5) is fixedly connected with the lower end of a hanging type weighing sensor (6), and the upper end of the hanging type weighing sensor (6) is fixed. The hanging type weighing sensor (6) is electrically connected with a singlechip (15) through an electric cable (9), the singlechip (15) is electrically connected with a display screen (11), and the singlechip (15) is electrically connected with a key switch (12).
Description
Technical field：
The present invention relates to a kind of liquidometer, it is a kind of low cost, the liquidometer of wide accommodation.
Background technology：
Current liquid level is in respect of float-ball type, pressure type, infrared-type, ultrasonic type, laser type, radar type, core radiation wire type
Deng.But they do not adapt to all operating modes：Float-ball type is purely mechanic control it is more difficult to adapt to the demand of Automated condtrol；Pressure
Formula does not adapt to sewage, once blocking will be lost efficacy immediately at sampling；Infrared-type, ultrasonic type and laser type do not adapt to water
Vapour, the occasion of boiling water cannot use, and hot water fouling also affects the accuracy measuring；Although radar type, core radiation wire type can be fitted
Answer steam, but core radiation wire type has radiation, personnel cannot be close, in addition, this metering system is relatively costly.Be most difficult to measure be
Substantial amounts of offscum is had on liquid level, in addition to float-ball type, pressure type, other modes all can not accurately measure liquid level.
Content of the invention：
The present invention a kind of suspending hammer Weighing type liquid level meter is disclosed it is therefore an objective to：Create that a kind of structure is simple, reliable operation, adaptation
All operating modes and the liquidometer of low cost.
The present invention is the difference using gravity and buoyancy, indirectly to measure the position of liquid level by way of electronic scale weighing,
Suspended in midair in a liquid using about one prismatic cylindricality suspending hammer, top is mounted with LOAD CELLS, by the signal of sensor
By digital-to-analogue conversion, by single-chip microcomputer computing, shown with display screen.
The present invention has applied for utility model patent on the same day the applying date simultaneously.
What the present invention was claimed is mainly technically characterized by：Suspending hammer is about one prismatic cylindrical parts, and hanging exists
In container, connecting rod lower end is fixedly connected with suspending hammer upper end, and connecting rod upper end is fixedly connected with suspension type LOAD CELLS lower end,
Suspension type LOAD CELLS upper end is fixed.
The secondary technical characteristic that the present invention is claimed is：There is printed circuit board (PCB) in main frame, this printed circuit board (PCB) is installed
There are single-chip microcomputer and electronic component, display screen is installed before main frame, bottom is provided with key switch.
The other technical characteristics that the present invention is claimed are：, it is dynamo-electric with monolithic that suspension type LOAD CELLS passes through cable
Connect, single-chip microcomputer is electrically connected with display screen, and single-chip microcomputer is electrically connected with key switch, and single-chip microcomputer is electrically connected with power module, power supply
Module is electrically connected with power line, and power line is electrically connected with attaching plug.
The invention has the beneficial effects as follows：
1. because suspending hammer can be made using any material, so cost is relatively low.
2. whole machine movement-less part, so maintenance workload is little, fault rate is low, and reliability is high.
3. achieve remote measurement, the remote control of liquid level.
4. output is digital signal, is easy to be connected with micro computer, it is easy to accomplish automatically control.
5. the value type (highly, volume, weight, percentage ratio) of display can be very easy to by client's sets itself
The use of user.
6. can be under any severe occasion (being such as mixed with the sewage of debris, deep-etching, flowing, high temperature, a large amount of offscum)
Use.
Brief description：
It is described with reference to the drawings below.
Fig. 1 is the generalized section of the present invention.
Fig. 2 is the electric theory diagram of the present invention.
In figure：1. container, 2. suspending hammer, 3. counterweight, 4. fluid to be measured, 5. connecting rod, 6. suspension type LOAD CELLS, 7. holds
Weight bar, 8. fixture, 9. cable, 10. main frame, 11. display screens, 12. key switches, 13. power lines, 14. attaching plugs,
15. single-chip microcomputers, 16. power modules.
Specific embodiment：
The mechanical connection of the present invention is shown in Fig. 1：In container 1, equipped with fluid to be measured 4, in fluid to be measured 4, it is soaked with suspending hammer 2,
Suspending hammer 2 is about one prismatic cylindrical parts, can be solid or hollow, only meet following three former
Then, it is possible to use any material insoluble in fluid to be measured 4 makes, one is that (high) degree of length is equal with the height of container 1, and two are
Cross section is equal everywhere up and down, and three is the density that its total body density is greater than fluid to be measured 4, if suspending hammer 2 uses hollow body
Often density not, can be solved by increasing the method for counterweight 3 inside suspending hammer 2, counterweight 3 can use stone, sand, ferrum
Bits, any density such as soil, cement are more than the material of fluid to be measured 4.Connecting rod 5 is a metallic rod, its lower end and suspending hammer 2
Upper end is fixedly connected, and its upper end is fixedly connected with suspension type LOAD CELLS 6 lower end, and suspension type LOAD CELLS 6 is exactly electronics
The sensor of scale adds an analog-digital converter composition, and the sensor of electronic scale is typically by flexible member, and the electricity being attached to top
Resistance foil gauge is electrically connected the Wheatstone bridge composition being connected into, and more than belongs to ripe public technology, repeats no more.Bearing bar 7 is also
Metallic rod, its lower end is fixedly connected with suspension type LOAD CELLS 6 upper end, and its upper end is fixedly connected with fixture 8, fixture 8
Can be a part for building, such as roof, lintel etc., it is possible to use the top cover of container 1.
Being arranged in main frame 10 has printed circuit board (PCB), this printed circuit board (PCB) is provided with single-chip microcomputer 15, power module 16 and
The electronic components such as resistance, electric capacity, inductance, transistor, optocoupler, main frame 10 is above provided with LED digital display screen 11, and bottom is installed
There is key switch 12.
Fig. 2 is shown in the electrical connection of the present invention：Suspension type LOAD CELLS 6 passes through " four core shieldings " cable 9 and list
Piece machine 15 (CPU) electrically connects, and single-chip microcomputer 15 is electrically connected with display screen 11, and single-chip microcomputer 15 is electrically connected with key switch 12, single-chip microcomputer
15 are electrically connected with power module 16, and power module 16 is electrically connected with power line 13, and power line 13 is electrically connected with attaching plug 14.
The operation principle of the present invention is：When not having any fluid to be measured 4 in container 1, that is, during the state of " empty ", suspension type claims
Retransmit that sensor 6 born is exactly the weight sum of suspending hammer 2 and connecting rod 5, now by the left side the of depresses button switch 12
One key is by display screen 11 zero setting；Increase with fluid to be measured 4, the part that suspending hammer 2 immerses fluid to be measured 4 is also gradually increased, according to
Archimedes's theorem, also direct ratio increases buoyancy, and the weight direct ratio that suspension type LOAD CELLS 6 is born reduces, and this weight is become
Change the change in resistance of the resistance strain gage causing, by being arranged on the analog-digital converter conversion within suspension type LOAD CELLS 6,
Be changed into digital signal, this digital signal pass through cable 9 (be four core shielding lines, power supply 5 volts, ground connection one, multiple twin
Two, line difference mode signal line, shield external layer one point earth only at main frame, it is anti-interference that two ends are all cased with magnetic ferrites magnet ring), deliver to
In single-chip microcomputer 15, single-chip microcomputer 15 control display screen 11 display digit (this numeral should be negative value, but the programming program of single-chip microcomputer 15
With no negative sign before display screen, be just shown as on the occasion of).
The present invention will first calibrated using scene using front：First attaching plug 14 is connected civil power, on main frame 10
On display screen 11, the numeral of display, can ignore.When fluid to be measured 4 is given out light in container 1, click first left button
(zero setting key) three seconds, on display screen 11, display digit is " 0 ", represents in container 1 do not have fluid to be measured 4；When tested in container 1
When liquid 4 is full of, (from the number of the left side) second key (adjustment/acknowledgement key) of depresses button switch 12 three seconds, display screen 11
Upper display digit starts to flash one by one, often clicks second key, and the numeral flashed gradually moves to right, and wants adjusted which numeral, can
Pressing the 3rd key (add key) when that numeral is flashed increases digital value successively, or presses the 4th key (Substract key) successively
Reduce digital value, until being adjusted to expected value, then length presses three seconds second keys (adjustment/acknowledgement key), and all numerals stop flashing,
Adjustment terminates.
When container 1 is full, numeral has 4 kinds of display meanings, arbitrarily can be selected according to user's use habit：
1. height method：Numeral is adjusted to rice number, decimetre number or the cms of liquid level, now shown by the present invention just
It is the actual height of liquid level, for example：It is adjusted to 3.25, when representing full, liquid level is 3.25m, after using a period of time when full
Display 1.83, the liquid level representing remaining fluid to be measured 4 is at the 1.83m of bottom surface.
2. gravimetric method：Numeral is adjusted to the weight kilogram number of fluid to be measured 4 in whole container 1, now shown by the present invention
Be exactly remaining liquid actual weight.For example：Be adjusted to 786 when full, represent remaining fluid to be measured 4 full when weight be
786kg, through showing 532 using after a period of time, remaining fluid to be measured 4 weight of expression is 532kg.
3. volumetric method：The volume that numeral is adjusted to fluid to be measured 4 in whole container 1 rises number, now shown by the present invention
It is exactly actual liter of number of remaining liquid.For example：It is adjusted to 862, through using display 763, representing remaining fluid to be measured 4 volume when full
For 763L.
4. percentage method：Numeral is adjusted to 100, now shown by the present invention be exactly remaining liquid actual percentage.
It is adjusted to 100 when full, through using display 67, the 67% of volume when representing that remaining fluid to be measured 4 volume is full.
5. fraction method：When full, numeral is adjusted to 1, now shown by the present invention be exactly remaining liquid true score ratio.
Show 0.75 after using, 3/4 (reading of this fuel gauge like automobile) when representing that remaining fluid to be measured 4 is full.
It should be noted that：2nd to 5 display packing, only at top bottom and any place cross-sectional area, equal cylindricality is held
Just accurate in device 1 (cylinder, square column type, multiaspect cylindricality), and first method then regardless of what shape container 1 (spherical,
Bifurcation bifurcation Pear-Shaped, cone, polygonal cone, vase-shaped) in all accurate.
The present invention is not strict to suspending hammer (including counterweight 3) 2, connecting rod 5, the size of bearing bar 7, weight, material requirements,
So cost is relatively low.If will measure in the water of flowing, the diameter pipe bigger than suspending hammer 2 can be increased in suspending hammer 2 outside,
This pipe is fixed on the bottom surface of container 1, and this pipe lower side opens a hole, is allowed to inside and outside and communicates with fluid to be measured 4, output
The signal of telecommunication is averaged by integrating circuit, you can measurement.To measure corrosive liquids, then suspending hammer 2 and connecting rod 5 are used
(material of suspending hammer 2 can select the same material, usually rustless steel addition polymerization tetrafluoroethene lining with container 1 to resistant material；Connect
Bar 5 can use nickel manganese vanadium titanium stainless steel tube), suspension type LOAD CELLS 6 is individually placed in a small container on container 1 top
Interior, it is fixedly connected by a heavy wall pipe being slidably matched with connecting rod 5 between two containers, also may be used below this pipe
With refuel envelope etc sealing member sealed (this tube interior typically will inlay H62 brass bushing, bushing is wanted car have endless groove,
And be lubricated using aviation butter and seal).
The present invention is insensitive to fouling, and general fouling also need not be cleared up, and only need to recalibrate and once can normally use, but
Fouling is uneven, then must clear up during the cylindricity of impact suspending hammer 2.
Claims (3)
1. suspending hammer Weighing type liquid level meter, including suspending hammer (2), connecting rod (5), suspension type LOAD CELLS (6), cable (9), master
Machine (10), display screen (11), key switch (12), power line (13), single-chip microcomputer (15) is it is characterised in that suspending hammer (2) is one
Prismatic cylindrical parts up and down, in container (1), connecting rod (5) lower end is fixedly connected with suspending hammer (2) upper end for hanging, connects
Bar (5) upper end is fixedly connected with suspension type LOAD CELLS (6) lower end, and suspension type LOAD CELLS (6) upper end is fixed.
2. suspending hammer Weighing type liquid level meter according to claim 1 is it is characterised in that have printed circuit board (PCB) in main frame (10),
Single-chip microcomputer (15) and electronic component are provided with this printed circuit board (PCB), main frame (10) is above provided with display screen (11), bottom is pacified
Equipped with key switch (12).
3. suspending hammer Weighing type liquid level meter according to claim 1 is it is characterised in that suspension type LOAD CELLS (6) passes through
Cable (9) is electrically connected with single-chip microcomputer (15), and single-chip microcomputer (15) is electrically connected with display screen (11), single-chip microcomputer (15) and key switch
(12) electrically connect, single-chip microcomputer (15) is electrically connected with power module (16), and power module (16) is electrically connected with power line (13), power supply
Line (13) is electrically connected with attaching plug (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610864518.9A CN106404100A (en) | 2016-09-22 | 2016-09-22 | Suspending hammer weighing type liquid level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610864518.9A CN106404100A (en) | 2016-09-22 | 2016-09-22 | Suspending hammer weighing type liquid level gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106404100A true CN106404100A (en) | 2017-02-15 |
Family
ID=59229026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610864518.9A Pending CN106404100A (en) | 2016-09-22 | 2016-09-22 | Suspending hammer weighing type liquid level gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106404100A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060072A (en) * | 2018-10-05 | 2018-12-21 | 山东聊城三阳环保产业有限公司 | The cloud application device of suspending hammer Weighing type liquid level meter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2237837Y (en) * | 1995-08-22 | 1996-10-16 | 中国航空工业总公司第六○三研究所 | Buoyancy type digital liquid level monitor |
| CN2278206Y (en) * | 1996-02-27 | 1998-04-08 | 林燕彪 | Gravity type liquid level gauge |
| CN206095345U (en) * | 2016-09-22 | 2017-04-12 | 山东聊城三阳环保产业有限公司 | Suspending hammer weighing type level gauge |
-
2016
- 2016-09-22 CN CN201610864518.9A patent/CN106404100A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2237837Y (en) * | 1995-08-22 | 1996-10-16 | 中国航空工业总公司第六○三研究所 | Buoyancy type digital liquid level monitor |
| CN2278206Y (en) * | 1996-02-27 | 1998-04-08 | 林燕彪 | Gravity type liquid level gauge |
| CN206095345U (en) * | 2016-09-22 | 2017-04-12 | 山东聊城三阳环保产业有限公司 | Suspending hammer weighing type level gauge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060072A (en) * | 2018-10-05 | 2018-12-21 | 山东聊城三阳环保产业有限公司 | The cloud application device of suspending hammer Weighing type liquid level meter |
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