CN102353424A - Triaxial liquid level meter with magnetic reversible column - Google Patents
Triaxial liquid level meter with magnetic reversible column Download PDFInfo
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- CN102353424A CN102353424A CN 201110196253 CN201110196253A CN102353424A CN 102353424 A CN102353424 A CN 102353424A CN 201110196253 CN201110196253 CN 201110196253 CN 201110196253 A CN201110196253 A CN 201110196253A CN 102353424 A CN102353424 A CN 102353424A
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Abstract
The invention relates to a triaxial liquid level meter with a magnetic reversible column and belongs to the technical field of liquid level meters. The liquid level meter comprises the magnetic reversible column, a magnetic floater which is parallel to and adjacent to the magnetic reversible column and a floating body which is arranged on the surface of a liquid to be detected. The liquid level meter also comprises a transmission mechanism and a hammer body; the transmission mechanism mainly comprises three rotary shafts which are installed in a shell and three rotary wheels which are respectively sleeved on the three rotary shafts and are engaged two by two; the floating body is in wrapped connection with a first rotary wheel through a rope and a pulley wheel; the magnetic floater is in wrapped connection with a second rotary wheel through a rope, and the hammer body is in wrapped connection with a third rotary wheel through a rope; when the rotary shafts rotate, the movement directions of the floating body and the magnetic floater are the same and are opposite to the that of the hammer body. Through selecting different diameters of the rotary wheels, the measuring range of the liquid level meter for measuring the liquid level can be enlarged and the liquid level meter is more convenient to install, transport and detach; and in addition, the magnetic floater and the hammer body are not easy to clamp and damage and the scale of the liquid level meter is very convenient to observe at the same time.
Description
Technical field
The present invention relates to a kind of magnetic turning column liquid level meter, belong to the liquid level gauge technical field.
Background technology
Magnetic turning column liquid level meter (being also referred to as the magnetic float liquid level gauge) is to develop according to law of buoyancy and magnetic couplings effect, and it has remedied traditional glass pipe liquid level gauge and can not under High Temperature High Pressure, work and frangible multiple shortcoming.When the liquid level in the tested container is gone up and down; Magnetic float in the magnetic turning column liquid level meter lumen also goes up and down thereupon; Permanent-magnet steel in the float turns over the post indicator through the magnetic couple transmission to magnetic; Drive red, turn over 180 ° of post upsets in vain; When liquid level rises, turn over post and change redness into by white; When liquid level descends, turn over post and change white into by redness, the red white intersection of indicator is the true altitude of internal tank liquid level, thereby the realization liquid level is indicated clearly.
Existing side-mounted magnetic turning column liquid level meter as shown in Figure 1, comprise magnetic turn over post 1, with magnetic turn over post parallel near magnetic float 2 (it is interior to be positioned over magnetic float lumen 11) and the valve 13 that is connected container.The defective of its existence is: 1) must be in the container side perforate, and installation and processing inconvenience; 2) need allow liquid level gauge contact through valve 13, be prone to cause magnetic float 2 clamping stagnations and damage after the time is permanent with internal tank liquid, in case and valve reveal or damage, deal with unusual difficulty; 3) length of liquid level gauge is relevant with the height (range) of liquid in container, and promptly 20 meters container must use 20 meters magnetic to turn over post 1, and like this, the installation of the used liquid level gauge of wide range, transportation and dismounting be inconvenience very.
Existing rope formula magnetic turning column liquid level meter as shown in Figure 2; Compare with above-mentioned side-mounted magnetic turning column liquid level meter; Since the buoyancy aid 3 that will be located at container 100 inner liquid levels to be measured through rope 9 and pulley 10 be positioned over magnetic float lumen 11 interior magnetic float 2 (not shown)s and be connected, so need not to be connected with container 100 inner testing liquids.But the defective of its existence is: 1) identical with above-mentioned side-mounted magnetic turning column liquid level meter is that the length of liquid level gauge is relevant with the height of liquid in the container 100, the installation of liquid level gauge, transportation and dismounting inconvenience; 2) scale of liquid level gauge is negative scale (the 0m position that is liquid level gauge is at the liquid level gauge top, and full scale is in the liquid level gauge bottom), and therefore on-the-spot demonstration is an inversion state with actual liquid level, observes very inconvenience of liquid level gauge.
Existing roof-mounted magnetic turning column liquid level meter is compared with above-mentioned rope formula magnetic turning column liquid level meter as shown in Figure 3, saves pulley 10, directly through rope 9 buoyancy aid 3 is suspended on below magnetic float 2 (not shown)s.But the defective of its existence is: 1) length of liquid level gauge will adapt with the degree of depth of liquid in the pond, in case the pond degree of depth surpasses 3 meters, the installation and maintenance liquid level gauge will be extremely inconvenient; 2) liquid level gauge must be installed in the measured point directly over; If can't satisfy the installation requirement (such as pond of opening etc.) of liquid level gauge directly over the measured point, can't use.
Summary of the invention
The technical matters that the present invention solves is: propose a kind of magnetic turning column liquid level meter that there is defective in above-mentioned existing magnetic turning column liquid level meter that overcomes.
In order to solve the problems of the technologies described above; The technical scheme that the present invention proposes is: a kind of three magnetic turning column liquid level meters; Comprise magnetic turn over post, with magnetic turn over post parallel near magnetic float and be located at the buoyancy aid on testing liquid surface; Also comprise gear train and hammer body; Said gear train mainly constitutes by being arranged at three rotating shafts in the housing and being sheathed on three runners that mesh in twos each other in three rotating shafts respectively; Said buoyancy aid is through rope and the pulley and the first runner solderless wrapped connection; Said magnetic float is through the rope and the second runner solderless wrapped connection, and said hammer body is through rope and the 3rd runner solderless wrapped connection; When rotating shaft was rotated, said buoyancy aid was identical and opposite with the moving direction of hammer body with the moving direction of magnetic float.
When three two-wheel magnetic turning column liquid level meters of the present invention used: 1) when buoyancy aid descended with liquid level to be measured, magnetic float also descended, and hammer body rises; When buoyancy aid rose with liquid level to be measured, magnetic float also rose, and hammer body descends.The magnetic float driven magnetic that descends or rise is turned over the post upset and is realized the indication to liquid level.
The beneficial effect of three two-wheel magnetic turning column liquid level meters of the present invention is: 1) through selecting the difference of runner diameter; Can realize that the displacement of buoyancy aid and the displacement of magnetic float form scaling; Promptly realize forming scaling between liquid level gauge length and the liquid level range to be measured; Compare prior art and can reach expansion measuring liquid level range ability; Avoided existing magnetic turning column liquid level meter to carry out the disadvantage that convergent-divergent is measured to liquid level, and installation, transportation and dismounting that can convenient liquid level gauge; 2) need not in the perforate of tank body of container side; 3) magnetic float does not all contact with liquid with hammer body, is difficult for clamping stagnation and damage and does not have valve to reveal; 4) scale of liquid level gauge is always positive scale, observes very convenient.
The further qualification of three two-wheel magnetic turning column liquid level meters of the invention described above is: when said buoyancy aid descended, the gravitational torque sum that said magnetic float and buoyancy aid produce deducted the moment of resistance sum of the difference of the gravitational torque that hammer body produces greater than said gear train and rope generation again; When said buoyancy aid rose, the difference of the gravitational torque that gravitational torque that said hammer body produces and magnetic float produce was greater than the moment of resistance sum of said gear train and rope generation.
The perfect of three two-wheel magnetic turning column liquid level meters of the invention described above is: also comprise with magnetic turn over post parallel near magnetic float lumen and hammer body lumen, said magnetic float is located in the said magnetic float lumen, said hammer body is located in the said hammer body lumen.
Further improving of the invention described above single shaft two-wheel magnetic turning column liquid level meter is: said rope twines more than said runner one circle.
Further improving again of the invention described above single shaft two-wheel magnetic turning column liquid level meter is: said gear train is fixed on magnetic and turns on the post.
Description of drawings
Below in conjunction with accompanying drawing three magnetic turning column liquid level meters of the present invention are described further.
Fig. 1 is the structural representation of existing side-mounted magnetic turning column liquid level meter.
Fig. 2 is the structural representation of existing rope formula magnetic turning column liquid level meter.
Fig. 3 is the structural representation of existing roof-mounted magnetic turning column liquid level meter.
Fig. 4 is the structural representation of three magnetic turning column liquid level meters of the embodiment of the invention one.
Fig. 5 is near the partial structurtes amplification profile synoptic diagram the gear train among Fig. 4.
Fig. 6 be among Fig. 5 A to view.
Fig. 7 is the partial structurtes amplification profile synoptic diagram of three magnetic turning column liquid level meters of the embodiment of the invention two.
Fig. 8 is the partial structurtes amplification profile synoptic diagram of three magnetic turning column liquid level meters of the embodiment of the invention three.
Embodiment
Embodiment one
Three magnetic turning column liquid level meters of present embodiment such as Fig. 4 and shown in Figure 5, comprise magnetic turn over post 1, with magnetic turn over post 1 parallel near magnetic float 2 and be located at the buoyancy aid 3 on testing liquid surface.Also comprise gear train 4 and hammer body 5; Gear train 4 is that mainly last three runner 8-1,8-2,8-3 of engagement constitute in twos each other by being arranged at three rotating shaft 7-1,7-2, the 7-3 in the housing 6 and being sheathed on three rotating shaft 7-1,7-2,7-3 respectively; Buoyancy aid 3 is through rope 9 and the pulley 10 and the first runner 8-1 solderless wrapped connection; Magnetic float 2 is through the rope 9 and the second runner 8-2 solderless wrapped connection; Hammer body 5 is through rope 9 and the 3rd runner 8-3 solderless wrapped connection, as shown in Figure 6.
As shown in Figure 5, three magnetic turning column liquid level meters of present embodiment also comprise with magnetic turn over post 1 parallel near magnetic float lumen 11 and hammer body lumen 12, magnetic float 2 is located in the magnetic float lumen 11, hammer body 5 is located in the hammer body lumen 12.Certainly, the variation of present embodiment is: remove magnetic float lumen 11 and hammer body lumen 12.
As shown in Figure 4, the gear train 4 of present embodiment is fixed on magnetic and turns on the post 1.The testing liquid of present embodiment is contained in the container 100, and whole liquid level gauge is positioned at the side of container 100, and container 100 is open-topped tank bodies.
The buoyancy aid 3 of present embodiment can be selected the stainless steel ball of hollow seal or the baton round of hollow seal etc.
When three rotating shaft 7-1,7-2,7-3 rotation, buoyancy aid 3 is identical and opposite with the moving direction of hammer body 5 with the moving direction of magnetic float 2.That is: when buoyancy aid 3 descends with liquid level to be measured; Magnetic float 2 also descends; Hammer body 5 rises, and the gravitational torque sum that this moment, magnetic float 2 produced with buoyancy aid 3 deducts the moment of resistance sum that the difference of the gravitational torque that hammer body 5 produces should produce greater than gear train 4 and rope 9 again; When buoyancy aid 3 rose with liquid level to be measured, magnetic float 2 also rose, hammer body 5 declines, and the difference of the gravitational torque that the gravitational torque of hammer body 5 generations this moment and magnetic float 2 produce should be greater than the moment of resistance sum of gear train 4 with rope 9 generations.Magnetic float 2 driven magnetic that descend or rise are turned over post 1 upset and are realized the indication to liquid level.To this, it is following to analyze its principle of explanation theoretically.
At first we suppose:
The gravitational torque that M1-magnetic float 2 produces;
The gravitational torque that M2-hammer body 5 is produced;
The gravitational torque that M3-buoyancy aid 3 produces;
The moment (from the dynamic value of 0-M3) that M4-buoyancy aid 3 suffered buoyancy produce on the first runner 8-1;
The moment of resistance sum that M5-gear train 4 and rope 9 are produced.
When steady state (SS), the moment-equilibrium equation of liquid level gauge is: M1+M3=M2+M5+M4.
Under the effect of no any external force, buoyancy aid 3 will guarantee to float on the testing liquid surface;
1) moment of resistance sum that produced greater than gear train 4 and rope 9 of the difference that will guarantee the gravitational torque that gravitational torque that hammer body 5 produces and magnetic float 2 produce, i.e. M2-M1＞M5;
2) moment of resistance sum that produced greater than gear train 4 and rope 9 of the difference that will guarantee the gravitational torque that gravitational torque sum that magnetic float 2 and buoyancy aid 3 produced and hammer body 5 are produced, i.e. M1+M3-M2＞M5.
If liquid level descends, final buoyancy aid 3 will descend along with the decline of liquid level.
When if liquid level rises, final buoyancy aid 3 will rise along with the rising of liquid level.
In addition, magnetic float 2, buoyancy aid 3 and hammer body 5 will satisfy at the winding direction on the runner: when three 7 were rotated, magnetic float 2 and buoyancy aid 3 travel directions were in the same way and opposite with the direction of motion of hammer body 5.Usually, the rope 9 of connection magnetic float 2, buoyancy aid 3 and hammer body 5 will be in runner 8-2,8-1, the last certain number of turns (more than the circle) of twining in advance of 8-3.
Such as, the radius that we select the second runner 8-2 and the 3rd runner 8-3 is 0.1 meter, the radius of the first runner 8-1 is 0.2 meter; The weight of magnetic float 2 is 1.96 newton (quality is 0.2 kilogram), and the weight of hammer body 5 is 9.8 newton (quality is 1 kilogram), and the quality of buoyancy aid 3 is 6.86 newton (quality is 0.7 kilogram).This moment M1=1.96 * 0.1=0.196 ox rice; M2=9.8 * 0.1=0.98 ox rice; M3=6.86 * 0.2=1.372 ox rice.
1) if buoyancy aid can change along with liquid level variation will guarantee that liquid level rises the time, then gear train 4 must satisfy with the moment of resistance sum M5 that rope 9 produces: M5＜0.784 N rice (being M2-M1); We are as long as the moment of resistance sum M5 that gear train 4 and rope 9 are produced is reduced to the 0.784 N of level value that can measure reality below the rice.
2) if buoyancy aid can change along with liquid level variation will guarantee that liquid level descends the time, then gear train 4 must satisfy with the moment of resistance sum M5 that rope 9 produces: M5＜0.588 N rice (being M1+M3-M2).We are as long as the moment of resistance sum M5 that gear train 4 and rope 9 are produced is reduced to the 0.588 N of level value that just can measure reality below the rice.
Comprehensive 1) and 2), guarantee that liquid level rises or when descending buoyancy aid rise or descend along with liquid level, then gear train 4 must satisfy with the moment of resistance sum M5 that rope 9 produces: M5＜0.588 N rice.Therefore, we just can measure actual level value as long as gear train 4 is reduced to 0.588 N below the rice with the moment of resistance sum M5 that rope 9 produces.
Embodiment two
Three magnetic turning column liquid level meters of present embodiment are the variations on embodiment two bases as shown in Figure 7, and its structure and embodiment one are basic identical, and different is: gear train 4 is fixed on the container 100 that holds testing liquid.
Embodiment three
Three magnetic turning column liquid level meters of present embodiment as shown in Figure 8; It is the variation on embodiment one basis; Its structure and embodiment one are basic identical, and different is: container 100 is ponds of open top, and whole liquid level gauge is positioned on the terrace 101 (or shelf) of side top in pond.
Three magnetic turning column liquid level meters of the present invention are not limited to the described concrete technical scheme of the foregoing description; Such as: the gear train 4 of the liquid level gauge of embodiment one also can be fixed on the terrace or support of container 100 1 sides, and promptly the fixed position of gear train 4 can be diversified; Or the like.The technical scheme that all employings are equal to replacement formation is the protection domain that the present invention requires.
Claims (5)
1. three magnetic turning column liquid level meters; Comprise magnetic turn over post, with magnetic turn over post parallel near magnetic float and be located at the buoyancy aid on testing liquid surface; It is characterized in that: also comprise gear train and hammer body; Said gear train mainly constitutes by being arranged at three rotating shafts in the housing and being sheathed on three runners that mesh in twos each other in three rotating shafts respectively; Said buoyancy aid is through rope and the pulley and the first runner solderless wrapped connection; Said magnetic float is through the rope and the second runner solderless wrapped connection, and said hammer body is through rope and the 3rd runner solderless wrapped connection; When rotating shaft was rotated, said buoyancy aid was identical and opposite with the moving direction of hammer body with the moving direction of magnetic float.
2. according to said three magnetic turning column liquid level meters of claim 2; It is characterized in that: when said buoyancy aid descended, the gravitational torque sum that said magnetic float and buoyancy aid produce deducted the moment of resistance sum of the difference of the gravitational torque that hammer body produces greater than said gear train and rope generation again; When said buoyancy aid rose, the difference of the gravitational torque that gravitational torque that said hammer body produces and magnetic float produce was greater than the moment of resistance sum of said gear train and rope generation.
3. according to said three magnetic turning column liquid level meters of claim 3, it is characterized in that: also comprise with magnetic turn over post parallel near magnetic float lumen and hammer body lumen, said magnetic float is located in the said magnetic float lumen, said hammer body is located in the said hammer body lumen.
4. according to arbitrary said three magnetic turning column liquid level meters of claim 1-3, it is characterized in that: said rope twines more than said runner one circle.
5. according to said three magnetic turning column liquid level meters of claim 4, it is characterized in that: said gear train is fixed on magnetic and turns on the post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110196253 CN102353424B (en) | 2011-07-14 | 2011-07-14 | Triaxial liquid level meter with magnetic reversible column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110196253 CN102353424B (en) | 2011-07-14 | 2011-07-14 | Triaxial liquid level meter with magnetic reversible column |
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| Publication Number | Publication Date |
|---|---|
| CN102353424A true CN102353424A (en) | 2012-02-15 |
| CN102353424B CN102353424B (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110196253 Expired - Fee Related CN102353424B (en) | 2011-07-14 | 2011-07-14 | Triaxial liquid level meter with magnetic reversible column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114152319A (en) * | 2022-02-08 | 2022-03-08 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Site detection method and device for side-mounted liquid level meter of tank truck |
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| JPS56151320A (en) * | 1980-04-25 | 1981-11-24 | Tokyo Keiso Kk | Cable tensioning device for automatically balancing type liquid level meter |
| CN2067401U (en) * | 1990-06-07 | 1990-12-12 | 上海市化工设备研究所 | Digital liquid level gauge |
| CN2085955U (en) * | 1990-10-09 | 1991-10-02 | 大连电子仪器厂 | Liquid level sensor |
| CN2213329Y (en) * | 1994-11-23 | 1995-11-22 | 林春盛 | Forward read magnetic liquid level gage for constant pressure liquid storage tank |
| CN2225026Y (en) * | 1994-11-23 | 1996-04-17 | 孙美群 | Low specific gravity and high pressure magnetic level meter |
| CN202204570U (en) * | 2011-07-14 | 2012-04-25 | 苏州苏控自动化设备有限公司 | Three-shaft magnetic-reversing-column liquid level meter |
-
2011
- 2011-07-14 CN CN 201110196253 patent/CN102353424B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151320A (en) * | 1980-04-25 | 1981-11-24 | Tokyo Keiso Kk | Cable tensioning device for automatically balancing type liquid level meter |
| CN2067401U (en) * | 1990-06-07 | 1990-12-12 | 上海市化工设备研究所 | Digital liquid level gauge |
| CN2085955U (en) * | 1990-10-09 | 1991-10-02 | 大连电子仪器厂 | Liquid level sensor |
| CN2213329Y (en) * | 1994-11-23 | 1995-11-22 | 林春盛 | Forward read magnetic liquid level gage for constant pressure liquid storage tank |
| CN2225026Y (en) * | 1994-11-23 | 1996-04-17 | 孙美群 | Low specific gravity and high pressure magnetic level meter |
| CN202204570U (en) * | 2011-07-14 | 2012-04-25 | 苏州苏控自动化设备有限公司 | Three-shaft magnetic-reversing-column liquid level meter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114152319A (en) * | 2022-02-08 | 2022-03-08 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Site detection method and device for side-mounted liquid level meter of tank truck |
| CN114152319B (en) * | 2022-02-08 | 2022-05-10 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | On-site detection method and detection device for side-mounted liquid level meter of tank truck |
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Owner name: FENG XIANSHENG NANJING POWER SUPPLY CO., JIANGSU P Free format text: FORMER OWNER: FENG XIANSHENG Effective date: 20141121 |
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Effective date of registration: 20141121 Address after: 215625 Jiangsu Province, Zhangjiagang city Fengzhen Shagang village Jin 25-206 Patentee after: Suzhou Sukong Automation Equipment Co.,Ltd. Patentee after: Feng Xiansheng Patentee after: Nanjing Power Supply Co., Jiangsu Prov. Power Co. Address before: 215625 Jiangsu Province, Zhangjiagang city Fengzhen Shagang village Jin 25-206 Patentee before: Suzhou Sukong Automation Equipment Co.,Ltd. Patentee before: Feng Xiansheng |
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