CN105938778A - Float-type liquid level switch - Google Patents
Float-type liquid level switch Download PDFInfo
- Publication number
- CN105938778A CN105938778A CN201610474328.6A CN201610474328A CN105938778A CN 105938778 A CN105938778 A CN 105938778A CN 201610474328 A CN201610474328 A CN 201610474328A CN 105938778 A CN105938778 A CN 105938778A
- Authority
- CN
- China
- Prior art keywords
- float
- liquid level
- level switch
- assembly
- floater
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
Abstract
The invention discloses a float-type liquid level switch. The liquid level switch comprises a float body, a float connector, a floater assembly, a microswitch assembly and a junction box. The floater assembly is mounted in the float body through a triangular bracket. The microswitch assembly is mounted in the inner cavity of the float connector. The floater assembly comprises a floater, a balancing weight, a locking bolt, a magnetic steel assembly A, a floater connector and a floater rotation shaft. The microswitch assembly comprises a bracket board, a microswitch, a triggering button, a switch rotation shaft, a limiting device and a magnetic steel assembly B. The design of the balancing weight is added to the liquid level switch, therefore, the weight of the floater is increased much, the wall thickness of the floater is increased, the high temperature resistance/high voltage resistance of the floater is greatly improved, and the operation reliability of the integral assembly is greatly improved. The moving parts of the liquid level switch are few, and the reliability is improved. Compared with a general liquid level switch, the liquid level switch provided by the invention has the advantages that the sizes of the floater barrel, the floater and the two sets of magnetic steel assemblies are much smaller, and the structure is simple.
Description
Technical field
The present invention relates to level measuring technology, particularly a kind of liquid-level switch.
Background technology
In power plant, in order to reduce energy loss, a high steam part being done useful work is released,
Heating boiler feed water or other heat exchangers is come, such as low-pressure heater, preheater by a high-pressure heater
Etc., boiler feed temperature is improved step by step, saves coal-fired or other energy substances, be a kind of effectively
Conservation measures.
Liquid level in high-pressure heater how is monitored and controlled, and the safe operation to heater is particularly important, existing
The technology following liquidometer of many employings is had to be monitored,
1, remote level indicator: non-continuous formula liquidometer, with light beam or numeral method level value, and
There is output switch parameter, be used for reporting to the police.Its electrode is easily by the liquid corrosion that pH value is high, and then seepage etc. occurs
Fault, it is impossible to safe and reliable monitoring liquid level change, affects field apparatus safe operation.
2, magnetic turnover plate type liquidometer: show liquid level with magnetic turnover panel form and have switching value warning function.But high temperature
Floating body under high pressure conditions to be made and the biggest just can float, and this brings two aspect problems, one be float this
Easily there is seepage or the phenomenon that is flattened in body, and causes liquidometer not work, it is impossible to safe and reliable monitoring liquid
Position change, affects field apparatus safe operation；On the other hand it is that the volume of liquidometer own to be made the hugest,
Inconvenience is installed.
3, two-colour fluviograph: be only used for liquid level on the spot and show do not have analog quantity or output switch parameter, it is impossible to
Realize interlocked control function.
Further, since during high-pressure heater work, the reasons such as operating mode is complicated, pressure is big, variations in temperature is big,
Often resulting in liquidometer to damage, extreme influence power plant runs safety.
Summary of the invention
For solving the problems referred to above that prior art exists, the present invention to design that a kind of volume is little, simple in construction,
The buoy type liquid level switch of the high also high temperature high voltage resistant of reliability.
To achieve these goals, technical scheme is as follows: a kind of buoy type liquid level switch, including
Float body, floating drum connector, float assembly, microswitch component and rosette；
Described float assembly is arranged in float body by A-frame, and described rosette passes through floating drum
Connector is connected with float body, and described microswitch component is arranged in the inner chamber of floating drum connector；
Described floating drum connector left end fixes screw by rosette and rosette is fixed, right-hand member passes through floating drum
Fixing screw is connected with float body；
The both sides up and down of described float body are respectively provided with communicating pipe；
Described float assembly includes float, balancing weight, lock-screw, magnetic steel component A, float connector
With float rotary shaft, one end of described float connector and float be fixing to be connected, other end mounting magnetic steel group
Part A, the periphery, middle part of float connector is connected with balancing weight by lock-screw；Float assembly passes through float
Rotary shaft is connected with A-frame；
Between described A-frame and float connector, upper and lower both sides are respectively provided with floating position-limiting pin；
The left end that described A-frame fixes screw and float body by A-frame is fixed；
Described microswitch component includes supporting plate, microswitch, trigger button, switch rotary axle, limit
Position device and magnetic steel component B, described supporting plate is fixed screw by supporting plate and is fixed on the terminals of rosette
On daughter board, described microswitch is arranged on supporting plate, and described supporting plate passes through switch rotary axle and magnetic
Steel assembly B connects；Described trigger button is arranged in microswitch, when trigger button is by magnetic steel component B
After shake-up, its internal normally opened contact is connected, and normally closed contact disconnects；
Described magnetic steel component B includes magnet steel support and magnet steel, one end mounting magnetic steel of magnet steel support, another
End is connected on supporting plate by switch rotary axle, and the both sides up and down of magnet steel support are respectively provided with stopping means.
Further, the N end of described magnetic steel component A and magnetic steel component B is relative.
Further, terminal board is set in described rosette, described terminal board is installed and connects
Line terminals, binding post is connected with microswitch by wire.
Further, described terminal board is fixed screw by terminal board and is fixed in rosette.
Further, rosette lock-screw is set outside described rosette.
Further, described rosette bottom arranges electric wiring hole glue and blocks up and electric wiring pore pressure cap.
Further, described microswitch has 2 Ф 3mm fixing holes, is fixed on by M3 screw
On supporting plate.
Further, the material of described float body is carbon steel, described floating drum connector and float assembly
Material be 304 steel.
Compared with prior art, the method have the advantages that
1, increase balancing weight design due to the present invention, make the weight of float can increase many, such float wall thickness
Can increase, make the high temperature resistant/high-voltage performance of float be greatly enhanced, make the operational reliability of float assembly significantly
Increase.
2, few due to the movable part of the present invention, reliability increases.
3 compare with the liquid-level switch of routine, the float body of the present invention, float and the chi of two groups of magnetic steel components
Very little many smaller, simple in construction.
4, each assembly of the present invention is in addition to joint-box compound is aluminum matter, and float body material is carbon-steel parts, its
The material of the assemblies such as internal float is 304 steel, and all component can be carried out standardized production, the most greatly
Reduce greatly production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the float assembly structural representation of the present invention.
Fig. 3 is microswitch component (without the magnetic steel component B) structural representation of the present invention.
Fig. 4 is the magnetic steel component B structure schematic diagram of the present invention.
In figure: 1, float body, 2, float, 3, communicating pipe, 4, floating position-limiting pin, 5, locking screw
Nail, 6, balancing weight, 7, A-frame fix screw, 8, floating drum fix screw, 9, supporting plate, 10,
Microswitch, 11, floating drum connector, 12, terminal board fix screw, 13, rosette lock-screw,
14, supporting plate fixes screw, 15, binding post, 16, electric wiring hole glue block up, 17, electric wiring hole
Pressure cap, 18, rosette fix screw, 19, trigger button, 20, switch rotary axle, 21, stopping means,
22, magnetic steel component B, 23, magnetic steel component A, 24, A-frame, 25, float connector, 26, float
Rotary shaft, 27, rosette.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described through.As Figure 1-4, a kind of float-type liquid level
Switch, including float body 1, floating drum connector 11, float assembly, microswitch component and rosette 27；
Described float assembly is arranged in float body 1 by A-frame 24, described rosette 27
Being connected with float body 1 by floating drum connector 11, described microswitch component is arranged on floating drum connector
In the inner chamber of 11；
Described floating drum connector 11 left end fixes screw 18 and fixing, the right-hand member of rosette 27 by rosette
Fix screw 8 by floating drum to be connected with float body 1；
The both sides up and down of described float body 1 are respectively provided with communicating pipe 3；
Described float assembly includes float 2, balancing weight 6, lock-screw 5, magnetic steel component A23, float
Connector 25 and float rotary shaft 26, one end of described float connector 25 and float 2 be fixing to be connected,
Other end mounting magnetic steel assembly A23, lock-screw 5 and balancing weight are passed through in the periphery, middle part of float connector 25
6 connect；Float assembly is connected with A-frame 24 by float rotary shaft 26；
Between described A-frame 24 and float connector 25, upper and lower both sides are respectively provided with floating position-limiting pin
4；
The left end that described A-frame 24 fixes screw 7 and float body 1 by A-frame is fixed；
Described microswitch component includes supporting plate 9, microswitch 10, trigger button 19, switch rotary
Axle 20, stopping means 21 and magnetic steel component B22, described supporting plate 9 fixes screw 14 by supporting plate
Being fixed on the terminal board of rosette 27, described microswitch 10 is arranged on supporting plate 9, institute
The supporting plate 9 stated is connected with magnetic steel component B22 by switch rotary axle 20；Described trigger button 19 sets
Putting in microswitch 10, after trigger button 19 is touched by magnetic steel component B22, the normally opened of its inside touches
Point is connected, and normally closed contact disconnects；
Described magnetic steel component B22 includes magnet steel support and magnet steel, one end mounting magnetic steel of magnet steel support, another
One end is connected on supporting plate 9 by switch rotary axle 20, and the both sides up and down of magnet steel support are respectively provided with spacing
Device 21.
Further, the N end of described magnetic steel component A23 and magnetic steel component B22 is relative.
Further, terminal board is set in described rosette 27, described terminal board is installed
Binding post 15, binding post 15 is connected with microswitch 10 by wire.
Further, described terminal board is fixed screw 12 by terminal board and is fixed on rosette 27
In.
Further, described rosette 27 is outside arranges rosette lock-screw 13.
Further, described rosette 27 bottom arranges electric wiring hole glue and blocks up 16 and electric wiring pore pressure
Cap 17.
Further, described microswitch 10 has 2 Ф 3mm fixing holes, is fixed by M3 screw
On supporting plate 9.
Further, the material of described float body 1 is carbon steel, described floating drum connector 11 and float
The material of assembly is 304 steel.
The operation principle of the present invention is as follows:
Magnetic steel component A23 in float assembly in float body 1 transports up and down along with the change of surveyed liquid level
Dynamic, by magnetic coupling, drive the magnetic steel component B22 outside float body 1 to do corresponding up and down motion, so
Trigger the trigger button 19 in microswitch 10 by magnetic steel component B22, and then it is defeated to trigger microswitch 10
Go out on-off model.
The present invention is not limited to the present embodiment, any equivalent concepts in the technical scope of present disclosure or
Person changes, and is all classified as protection scope of the present invention.
Claims (8)
1. a buoy type liquid level switch, it is characterised in that: include float body (1), floating drum connector (11),
Float assembly, microswitch component and rosette (27)；
Described float assembly is arranged in float body (1) by A-frame (24), described wiring
Box (27) is connected with float body (1) by floating drum connector (11), described microswitch component peace
It is contained in the inner chamber of floating drum connector (11)；
Described floating drum connector (11) left end fixes screw (18) and rosette (27) by rosette
Fixing, right-hand member is fixed screw (8) by floating drum and is connected with float body (1)；
The both sides up and down of described float body (1) are respectively provided with communicating pipe (3)；
Described float assembly includes float (2), balancing weight (6), lock-screw (5), magnetic steel component A
(23), float connector (25) and float rotary shaft (26), the one of described float connector (25)
End with float (2) fix be connected, other end mounting magnetic steel assembly A (23), float connector (25)
Middle part is peripheral to be connected with balancing weight (6) by lock-screw (5)；Float assembly passes through float rotary shaft (26)
It is connected with A-frame (24)；
Between described A-frame (24) and float connector (25), upper and lower both sides are respectively provided with floating limit
Position pin (4)；
Described A-frame (24) fixes a left side for screw (7) and float body (1) by A-frame
End is fixing；
Described microswitch component include supporting plate (9), microswitch (10), trigger button (19),
Switch rotary axle (20), stopping means (21) and magnetic steel component B (22), described supporting plate (9) leads to
Crossing supporting plate to fix screw (14) and be fixed on the terminal board of rosette (27), described fine motion is opened
Close (10) be arranged on supporting plate (9), described supporting plate (9) by switch rotary axle (20) with
Magnetic steel component B (22) connects；Described trigger button (19) is arranged in microswitch (10), when touching
Sending out after button (19) touched by magnetic steel component B (22), its internal normally opened contact is connected, and normally closed contact breaks
Open；
Described magnetic steel component B (22) includes magnet steel support and magnet steel, one end mounting magnetic steel of magnet steel support,
The other end is connected on supporting plate (9) by switch rotary axle (20), and the both sides up and down of magnet steel support are respectively
Stopping means (21) is set.
A kind of buoy type liquid level switch the most according to claim 1, it is characterised in that: described magnet steel
The N end of assembly A (23) and magnetic steel component B (22) is relative.
A kind of buoy type liquid level switch the most according to claim 1, it is characterised in that: described wiring
Terminal board is set in box (27), described terminal board is installed binding post (15), terminals
Son (15) is connected with microswitch (10) by wire.
A kind of buoy type liquid level switch the most according to claim 3, it is characterised in that: described wiring
Terminal board is fixed screw (12) by terminal board and is fixed in rosette (27).
A kind of buoy type liquid level switch the most according to claim 1, it is characterised in that: described wiring
Box (27) is outside arranges rosette lock-screw (13).
A kind of buoy type liquid level switch the most according to claim 1, it is characterised in that: described wiring
Box (27) bottom arranges electric wiring hole glue stifled (16) and electric wiring pore pressure cap (17).
A kind of buoy type liquid level switch the most according to claim 1, it is characterised in that: described fine motion
There are 2 Ф 3mm fixing holes on switch (10), are fixed on supporting plate (9) by M3 screw.
A kind of buoy type liquid level switch the most according to claim 1, it is characterised in that: described floating drum
The material of main body (1) is carbon steel, and described floating drum connector (11) and the material of float assembly are 304 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610474328.6A CN105938778A (en) | 2016-06-23 | 2016-06-23 | Float-type liquid level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610474328.6A CN105938778A (en) | 2016-06-23 | 2016-06-23 | Float-type liquid level switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105938778A true CN105938778A (en) | 2016-09-14 |
Family
ID=56872095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610474328.6A Pending CN105938778A (en) | 2016-06-23 | 2016-06-23 | Float-type liquid level switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105938778A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054608A (en) * | 2017-05-23 | 2017-08-18 | 广船国际有限公司 | Waste water drainage system and ship after ballast water treatment system sampling analysis |
| CN107564765A (en) * | 2017-08-25 | 2018-01-09 | 中国电子科技集团公司第四十九研究所 | A kind of floating-ball level switch resilient contact |
| CN107871641A (en) * | 2016-09-22 | 2018-04-03 | 东莞市东坑合利美电子电器有限公司 | The composition of the micromotion structure of drainage arrangement |
| CN109959430A (en) * | 2017-12-24 | 2019-07-02 | 杨佳悦 | A kind of tongue tube water level switch |
| CN117430293A (en) * | 2023-12-18 | 2024-01-23 | 水分子(常州)新材料科技有限公司 | Water level detection device for water treatment and treatment method |
-
2016
- 2016-06-23 CN CN201610474328.6A patent/CN105938778A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107871641A (en) * | 2016-09-22 | 2018-04-03 | 东莞市东坑合利美电子电器有限公司 | The composition of the micromotion structure of drainage arrangement |
| CN107054608A (en) * | 2017-05-23 | 2017-08-18 | 广船国际有限公司 | Waste water drainage system and ship after ballast water treatment system sampling analysis |
| WO2018214345A1 (en) * | 2017-05-23 | 2018-11-29 | 广船国际有限公司 | System for discharging wastewater subjected to sampling analysis of ballast water treatment system and ship |
| CN107054608B (en) * | 2017-05-23 | 2019-01-29 | 广船国际有限公司 | Waste water drainage system and ship after ballast water treatment system sampling analysis |
| CN107564765A (en) * | 2017-08-25 | 2018-01-09 | 中国电子科技集团公司第四十九研究所 | A kind of floating-ball level switch resilient contact |
| CN109959430A (en) * | 2017-12-24 | 2019-07-02 | 杨佳悦 | A kind of tongue tube water level switch |
| CN117430293A (en) * | 2023-12-18 | 2024-01-23 | 水分子(常州)新材料科技有限公司 | Water level detection device for water treatment and treatment method |
| CN117430293B (en) * | 2023-12-18 | 2024-03-22 | 水分子(常州)新材料科技有限公司 | Water level detection device for water treatment and treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160914 |
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| RJ01 | Rejection of invention patent application after publication |