CN203552086U - Floating liquid level switch - Google Patents
Floating liquid level switch Download PDFInfo
- Publication number
- CN203552086U CN203552086U CN201320734543.7U CN201320734543U CN203552086U CN 203552086 U CN203552086 U CN 203552086U CN 201320734543 U CN201320734543 U CN 201320734543U CN 203552086 U CN203552086 U CN 203552086U
- Authority
- CN
- China
- Prior art keywords
- level switch
- cavity
- floating
- float
- type level
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 title abstract description 39
- 238000007667 floating Methods 0.000 title abstract description 6
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 26
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000012530 fluid Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
The utility model relates to a floating liquid level switch. The floating liquid level switch comprises an elongated floater. A cavity is formed in the floater. The cavity is an elongated cavity. A mercury droplet is arranged in the cavity. A contact is arranged in the middle portion of the cavity. The contact is connected with a lead. The lead is led out from the floater. Compared with the prior art, the floating liquid level switch of the utility model has characteristics, such as wide application range, simple structure, good applicability, etc.
Description
Technical field
The utility model relates to a kind of liquid level control switch, particularly relates to a kind of floating-type level switch.
Background technology
Level switch is widely used in electrical equipment, and its major function is to provide alerting signal or actuating signal for the liquid high-low-position in tank body changes.And floating-type level switch, its major advantage is the not impact of liquid body viscosity and transparency substantially, adaptability is stronger.
Close level switch has float-ball type, photo-electric, condenser type, float-type, oscillatory type etc. at present, and their ubiquities are subject to the limitation of fluid to be measured character.Such as the viscosity of fluid to be measured is larger on float-ball type, condenser type, float-type, the impact of jigging type liquid bit switch, and the transparency of fluid to be measured is larger on photoelectric liquid level switch impact.If fluid to be measured adhesion wall built-up detecting head, or liquid transparency is poor, makes level switch produce glitch and misoperation occurs.
CN200910145595.9 discloses a kind of liquid storage tank liquid-level meter, comprising: float, runner, stay cord, motor, power sensor, elastomeric element and pedestal; Wherein, the rotating shaft of motor connects runner, and runner outer felt is wound with stay cord, and float hangs on stay cord; The first end of power sensor is fixedly connected with motor; The second end of the first end of elastomeric element and pedestal is fixedly connected with power sensor, and the second end of elastomeric element is fixedly connected with the first end of pedestal.This liquid storage tank liquid-level meter changes liquid level signal into the signal of power by buoyancy, epistasis parts, power sensor, then by the signal of power, makes liquid level and judges, its structure is comparatively complicated.
Adopting mercury cut-off is that liquid level detects or control is a kind of conventional mode in this area, mainly by mercury cut-off, coordinates with float, and liquid level is detected or controlled, and can be designed as different structures while specifically applying.CN201020174178.5 discloses a kind of device of controlling liquid surface position height, particularly fluid level controller.Technical scheme is to comprise cursory and cable output line, is provided with mercury cut-off in cursory, and being arranged on of cable output line is cursory upper, and is connected with the output lead of mercury cut-off; Mercury cut-off comprises body, mercury bead, electrode, and mercury slug is arranged in body, and electrode shutoff is at the mouth of pipe, and contact conductor is exactly mercury cut-off output lead.This utility model need to arrange a plurality of mercury cut-offes, and structure is comparatively complicated.
CN91225555.2 discloses a kind of automatic level controller, comprise a floating drum shell, be contained in and on its inner casket stand, have a mercury cut-off, one weight is housed below floating drum, on several contacts of mercury cut-off, be connected with respectively wire, this device need to arrange a plurality of switch contact points, and circuit is complicated, easily reports by mistake.
CN93225928.6 discloses a kind of buoy monitor for container liquid level, adopt one end special-shaped, elongated, pipe bar shaped buoy to be provided with up-small and down-big flex point shape mercury cut-off, by means of buoyancy, liquid level is elevated to certain altitude; when buoy tilts to 70 ° of left and right; mercury cut-off conducting, controls external circuit action.When this utility model is designed to buoy and tilts to 70 ° of left and right, mercury cut-off conducting, the buoyancy of different liquid is different, and the angle of inclination of buoy is also slightly different, so its applicable liquid range is limited.
CN98213305.7 discloses a kind of directional valve type liquid-level sensor, be used for detecting liquid level, it is directivity switch (as mercury cut-off) on buoyancy aid is in-built, while utilizing sensor to be floated by liquid, the on off state of directivity switch will change to check liquid level, because switch contact is enclosed in glass tube, not ingress of air and liquid.This utility model is due to structure, and the time of connection is longer, and usable range is restricted.
Summary of the invention
For the deficiencies in the prior art, the utility model proposes a kind of applied widely, simple in structure, the floating-type level switch that applicability is strong.
The utility model floating-type level switch comprises microscler float, and float inside is cavity, and cavity is strip, and mercury droplet is set in cavity, and cavity center section arranges contact, and contact is communicated with lead-in wire, leads to float outside.
In the utility model, the shape of microscler float can be strip, and the diameter of strip can be uniformly, can be also inhomogeneous, and the length of microscler float/diameter is than being 2:1～20:1.The material of microscler float can be the material of the common use in this area, selects the materials such as acidproof, alkaline-resisting, oil resistant to make according to the medium of application.
In the utility model, float internal cavities is strip, and the length of cavity/diameter ratio is preferably 3:1～15:1, and the xsect of cavity is preferably circle, and the diameter of diverse location cavity can be the same or different, and is preferably cavity structure small in ends broad in the middle.
In the utility model, the size of the mercury droplet in cavity is enough to make contact to be communicated with.
In the utility model, the proportion of floating-type level switch is less than the proportion of fluid to be measured, is preferably to mend to survey tintometric 5%～90%.
In the utility model, the lead-in wire other end is connected with control or warning circuit.
It is simple and relax that the utility model level switch is installed, top dress, side dress, lower dress all can, during use, one end is fixed on the relevant position of liquid container by connecting line, the location positioning that the length of connecting line is controlled according to liquid level.Connecting line adopts flexible connection line, reduces the impact on float state.
Compared with prior art, the utility model is simple in structure, controls sensitively, and the liquid level that goes for various liquid detects or controls, and is not subject to the impact of fluid to be measured viscosity and transparency completely.
Accompanying drawing explanation
Fig. 1 is the utility model floating-type liquid level switch structure schematic diagram.
Wherein: 1-mercury droplet, 2-cavity, 3-float, 4-lead-in wire, 5-contact.
Embodiment
Below in conjunction with accompanying drawing, hydrogenation plant of the present utility model is described in detail.
Figure 1 shows that a kind of concrete structure floating-type of the utility model level switch, by float 3, form main body, in float, there is cavity 2, the interior mercury droplet 1 that arranges of cavity 2, cavity middle part arranges contact 5, and contact 5 is connected with lead-in wire 4, and lead-in wire 4 other ends connect with control circuit or warning circuit.
In the utility model, float is enclosed construction, and cavity is hedged off from the outer world, in cavity except mercury droplet, can blanketing gas, also can vacuumize.
The utility model in use, arranges flexible connection line and floating-type level switch is arranged in the container that need to detect liquid level, and flexible connection line can be arranged on top, sidepiece or the bottom of container, specifically determines as required.The requirement that the length of flexible connection line is controlled according to liquid level is specifically determined.
When being arranged on container top, when liquid level is lower, floating-type level switch is in plumbness, and process in off-state contact, and control circuit, for open circuit, can be controlled not discharge opeing or not report to the police; When liquid level rising makes floating-type level switch in horizontality, mercury droplet moves cavity middle part, makes contact in closure state, and control circuit is closed circuit, can control discharge opeing or warning.
When being arranged on container bottom, when liquid level is lower, floating-type level switch is in horizontality, and mercury droplet is communicated with contact, and process in closure state contact, and control circuit is closed circuit, can control not discharge opeing or not report to the police; When liquid level rising makes floating-type level switch in plumbness, mercury droplet moves cavity bottom, makes contact in off-state, and control circuit, for open circuit, can be controlled discharge opeing or warning.
Claims (10)
1. a floating-type level switch, is characterized in that: comprise microscler float, float inside is cavity, and cavity is strip, and mercury droplet is set in cavity, and cavity center section arranges contact, and contact is communicated with lead-in wire, leads to float outside.
2. floating-type level switch according to claim 1, is characterized in that: the shape of microscler float is strip.
3. floating-type level switch according to claim 1, is characterized in that: the length of microscler float/diameter is than being 2:1～20:1.
4. floating-type level switch according to claim 1, is characterized in that: microscler float selection is acidproof, alkaline-resisting, oil resisting material is made.
5. floating-type level switch according to claim 1, is characterized in that: float internal cavities is strip, and the length of cavity/diameter ratio is preferably 3:1～15:1.
6. floating-type level switch according to claim 1 or 5, is characterized in that: the xsect of cavity is for circular.
7. floating-type level switch according to claim 6, is characterized in that: the diameter of the xsect circle of cavity is cavity structure small in ends broad in the middle.
8. floating-type level switch according to claim 1, is characterized in that: the size of the mercury droplet in cavity is enough to make contact to be communicated with.
9. floating-type level switch according to claim 1, is characterized in that: the proportion of floating-type level switch is less than the proportion of fluid to be measured.
10. floating-type level switch according to claim 1, is characterized in that: the lead-in wire other end is connected with control or warning circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320734543.7U CN203552086U (en) | 2013-11-20 | 2013-11-20 | Floating liquid level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320734543.7U CN203552086U (en) | 2013-11-20 | 2013-11-20 | Floating liquid level switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552086U true CN203552086U (en) | 2014-04-16 |
Family
ID=50470176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320734543.7U Expired - Lifetime CN203552086U (en) | 2013-11-20 | 2013-11-20 | Floating liquid level switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203552086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107479587A (en) * | 2017-08-07 | 2017-12-15 | 云南靖创液态金属热控技术研发有限公司 | A kind of level switch based on liquid metal |
-
2013
- 2013-11-20 CN CN201320734543.7U patent/CN203552086U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107479587A (en) * | 2017-08-07 | 2017-12-15 | 云南靖创液态金属热控技术研发有限公司 | A kind of level switch based on liquid metal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |