CN109959430A - A kind of tongue tube water level switch - Google Patents
A kind of tongue tube water level switch Download PDFInfo
- Publication number
- CN109959430A CN109959430A CN201711413050.2A CN201711413050A CN109959430A CN 109959430 A CN109959430 A CN 109959430A CN 201711413050 A CN201711413050 A CN 201711413050A CN 109959430 A CN109959430 A CN 109959430A
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- China
- Prior art keywords
- lever
- tongue tube
- water level
- terminal
- steel
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Classifications
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- 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
- G01F23/30—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 by floats
- G01F23/56—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 by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
- G01F23/60—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 by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using electrically actuated indicating means
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
A kind of tongue tube water level switch.Object of the present invention is to solve existing water level switch, there are operating temperature pressure is lower, structure is complicated, the problem of poor reliability, steel tube shell front end of the invention is threadedly coupled with flange, flange and lever set weld, lever set and lever respectively have a hole, steel shaft group is penetrated to be in the hinge connection, lever front end and float weld, lever end is packed into magnet block, lever, which covers, installs two tongue tubes on outer wall, the electric contact of two tongue tubes respectively corresponds the both ends of the surface of magnet block, steel pipe front end passes through flanged joint float cover, terminal block is packed into inside steel pipe rear end, terminal base fills two pair of wire connection terminals, tongue tube both ends metal wire is connect with terminal, in the continuous process of rising or falling of water level, water level switch exports alarm signal twice, the configuration of the present invention is simple is compact, manufacture is easy, production cost is low, it is easy for installation, long service life, it is applicable in In the high-temperature high-pressure apparatus monitoring water level such as power plant nuclear power plant.
Description
Technical field
The present invention relates to a kind of liquid-level switch, specifically a kind of tongue tube water level switch.
Background technique
The equipment for needing to measure water level in industrial processes is more, some equipment do not need instrument and continuously measure water level,
It is required that water level keeps within the specified scope, when water level is more than regulation, to issue alarm signal in time, trying to avert accidents.
Existing liquid-level switch operating temperature pressure is lower, is not able to satisfy high-temperature high-pressure apparatus monitoring water level.Ultrasonic wave
LVU-A700 series liquid-level switch, 70 DEG C of maximum operating temperature, maximum working pressure 0.6MPa.Connecting rod floating ball level switch UQK-
80 series, -30 DEG C of operating temperature~160 DEG C, operating pressure 2.5MPa.Capacitance liquid level switch sz88 series, -25 DEG C of operating temperature
~180 DEG C, 0.1~4MPa of operating pressure.- 20 DEG C~220 DEG C of electric pole type liquid-level switch operating temperature, operating pressure 1MPa.Beauty
- 30 DEG C~150 DEG C of temperature of state HT-TOUCH Fork LIquid Level Switch HF series of tasks, operating pressure is less than 2MPa.
The heater of power plant nuclear power plant, 1~6MPa of vapour pressure, 250 DEG C of temperature or more, existing liquid-level switch is not able to satisfy
It is required that.So far power plant uses the water level of electric contact sensor and instrument monitoring high-temperature high-pressure apparatus, and systematic comparison is complicated, structure
Not compact, cost is high, poor reliability.The reliability requirement of power plant nuclear power plant heat power equipment monitoring water level is higher, prevents
Major accident.
Summary of the invention
The object of the present invention is to provide a kind of high temperature and pressure water level switches simple and compact for structure, reliable operation, meet hair
The demand of the enterprises such as nuclear power plant, power plant high-temperature high-pressure apparatus monitoring water level.
The technical solution adopted by the present invention to solve the above technical problem is:
A kind of tongue tube water level switch, it include steel pipe, lever set, lever, float, the first tongue tube, the second tongue tube,
Float cover, steel loop, end cap, terminal base, a pair of terminal, second pair of terminal, flange, the front end of the steel pipe and flange screw thread connect
It connects, flange and lever set weld, and lever is packed into lever set, and lever and lever set respectively have a hole, and steel shaft penetrates lever and lever
The hole of set, group are in the hinge connection, and lever front end is connect with float, and lever end connects a magnet block, consolidate on lever set outer wall
Two tongue tubes are corresponding with magnet block both ends of the surface respectively, and float is packed into float cover, float cover and flanged joint, on float cover
Lower each there are two hole, steel loop is welded in steel pipe inside, and terminal base and steel loop are connected with screw, and two docking line ends are installed on terminal base
Son, each pair of terminal have metal wire to connect with a tongue tube both ends, and each pair of terminal exports alarm switch signal, and there is end in steel pipe end
Lid is tightly connected with flange and level monitoring pipeline or equipment.
The present invention has the advantage that compared with the prior art
1. existing liquid-level switch operating temperature is lower than 220 DEG C, operating pressure is less than 4MPa, operating temperature 300 of the present invention
DEG C, operating pressure 10MPa can satisfy the needs of power plant nuclear power plant high-temperature high-pressure apparatus monitoring water level.2. existing liquid level
Switch needs to amplify, the switching signal of control circuit output alarm circuit, the switching signal of the direct output alarm circuit of the present invention,
Structure is simple, reliable operation.3. water level switch of the present invention exports alarm switch signal twice, the reliable of level monitoring is improved
Property, it is critically important to power plant nuclear power plant.4. existing floating-ball level switch, the shell for installing tongue tube immerses the liquid of monitoring
In body, the temperature of tongue tube is identical as monitoring fluid temperature, thus the fluid temperature of existing floating-ball level switch monitoring, cannot
More than the operating temperature range of tongue tube, tongue tube of the invention is mounted on outside monitoring fluid pipeline, the operating temperature of tongue tube
Temperature far below monitoring liquid suitable for the monitoring water level of high-temperature high-pressure apparatus is that existing floating-ball level switch does not have
The advantages of.5. the configuration of the present invention is simple is compact, easy to manufacture, production cost is low, easy for installation, long service life.
Detailed description of the invention
Fig. 1 is main sectional view of the invention
Fig. 2 is the sectional view of A-A in Fig. 1
Fig. 3 is the sectional view of B-B in Fig. 1
Specific embodiment
Specific embodiment 1: illustrating present embodiment, the tongue tube water level switch of present embodiment in conjunction with Fig. 1 Fig. 2 Fig. 3
Including steel pipe 1, lever set 2, lever 3, float 4, the first tongue tube 5, the second tongue tube 6, float cover 7, steel loop 8, end cap 9, end
Stroma 10, a pair of terminal 11, second pairs of terminals 12, flanges 13；
1 front end of steel pipe, which has, is threadedly coupled flange 13, and lever set 2 and flange welding, lever 3 are packed into lever set, thick stick
Rod set and lever respectively have a hole, and steel shaft 3-1 penetrates the hole of lever set and lever, and group is in the hinge connection, and lever and steel shaft are with stainless
Steel material production, steel shaft 3-1 penetrate pin in aperture there are two aperture, lever are made to be fixed on the center of lever set, lever
Front end and float 4 weld, and float is hollow cylinder or hollow ball, make of aluminium or stainless steel, the end of lever passes through
The centre bore of magnet block 3-2 fastens magnet block with nut 3-3, and lever applies nonmagnetic material production, the first tongue tube 5
With the second tongue tube 6, both ends bond one section of porcelain bushing shell 2-1, and the effective high-temperature plastic of insulator and lever set bond, the first tongue tube pair
The upper surface of magnet block is answered, the second tongue tube corresponds to the lower end surface of magnet block.Float cover 7 and flange are connected with screw, float cover
It is made of steel cylinder, closed at one end, float cover wall is each up and down, and there are two holes, are symmetrically and evenly distributed, and steel loop is welded on the inside of 1 end of steel pipe
8, terminal base 10 is connect with screw with steel loop, terminal base ceramic material, and a pair of terminal 11 and the are installed on terminal base
Two pairs of terminals 12, the first tongue tube both ends metal wire are connect with a pair of terminal, the second tongue tube both ends metal wire and
Two pairs of terminal connections, the signal of two pairs of terminals output can be used as alarm switch signal, and steel pipe end has screw thread to connect with end cap 9,
Flange is connect with level monitoring equipment.
Specific embodiment 2: embodiment is described with reference to Fig. 1, the first tongue tube 5 and the second tongue tube 6 select glass
Pipe diameter 5mm, the tongue tube of long 35mm.
Specific embodiment 3: illustrating present embodiment, the porcelain bushing shell for being bonded in tongue tube both ends in conjunction with Fig. 1 Fig. 3
2-1, outer diameter 8mm, internal diameter 6mm, long 6mm.It is the heat output for reducing lever set to tongue tube, tongue tube temperature that purpose, which is arranged such,
It is unlikely to be more than to allow operating temperature.
Specific embodiment 4: embodiment is described with reference to Fig. 1, present embodiment magnet block 3-2 uses alnico forever
The production of magnetic material, 500 DEG C of operating temperature.
Specific embodiment 5: embodiment is described with reference to Fig. 1, present embodiment steel pipe 1 is peripherally evenly distributed with ventilation hole
1-1, aperture 5mm.
The working principle of the invention: illustrate the working principle of the invention, tongue tube water level of the invention in conjunction with Fig. 1 Fig. 2 Fig. 3
Switch is mounted in the pipeline that need to monitor vertical SEA LEVEL VARIATION or equipment, firstly, water level switch is for water level liter in monitoring device
High variation, when initial, water does not enter float cover, and lever is in non-equilibrium state, and float sinks, lever end magnets block it is upper
End face exports closed circuit signal close to the first tongue tube, a pair of terminal, and subsequent water has entered float cover, with the liter of water level
Height is moved up by the effect float of buoyancy, and the first tongue tube is left in magnet block upper surface, and a pair of terminal exports disconnecting circuit letter
Number, output first time water level increases signal, continues to increase with water level, and float continues to rise, the lower end surface of magnet block close to
Second tongue tube, second pair of terminal output circuit closure signal, second of output water level increase signal.
With the above process on the contrary, tongue tube water level switch level monitoring reduces process, when high water level, float is moved up, magnet
The lower end surface of block exports closed circuit signal close to the second tongue tube, second pair of terminal, and as water level reduces, float is moved down, magnetic
The second tongue tube is left in the lower end surface of iron block, and second pair of terminal output circuit cut-off signal continues to reduce, magnet with water level
The upper surface of block exports closed circuit signal, that is, exports second of water level low signal close to the first tongue tube, a pair of terminal,
In water level process of rising or falling, the present invention has the function of issuing alarm signal twice.
Claims (2)
1. a kind of tongue tube water level switch, it is characterised in that: steel pipe (1) front end has threaded connection flange (13), lever set (2) with
Flange welding, lever (3) are packed into lever set, and lever set and lever respectively have a hole, and steel shaft (3-1) penetrates lever set and lever
Hole, group are in the hinge connection, and lever and steel shaft make of stainless steel material, and lever front end and float (4) are welded, and float is open circles
Cylinder or hollow ball make of aluminium or stainless steel, and lever end passes through the centre bore of magnet block (3-2), with nut (3-3)
Magnet block is fastened, lever applies nonmagnetic material production, the first tongue tube (5) and the second tongue tube (6) both ends bonding one
Section porcelain bushing shell (2-1), the effective high-temperature plastic of insulator and lever set bond, and the first tongue tube corresponds to magnet block upper surface, and second is dry
Reed pipe corresponds to magnet block lower end surface, and float cover (7) and flange are connected with screw, and float cover makes of steel cylinder, closed at one end, cover wall
Each up and down there are two holes, are symmetrically and evenly distributed, and steel pipe terminus inner welds steel loop (8), and terminal base (10) screw and steel loop connect
It connects, terminal base ceramic material, a pair of terminal (11) and second pair of terminal (12), the first tongue tube is installed on terminal base
Both ends metal wire is connect with a pair of terminal, and the second tongue tube both ends metal wire is connect with second pair of terminal, steel pipe end
There is screw thread to connect with end cap (9).
2. a kind of tongue tube water level switch according to claim 1, which is characterized in that the magnet block (3-2) uses aluminium
The production of cobalt nickel permanent-magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711413050.2A CN109959430A (en) | 2017-12-24 | 2017-12-24 | A kind of tongue tube water level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711413050.2A CN109959430A (en) | 2017-12-24 | 2017-12-24 | A kind of tongue tube water level switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109959430A true CN109959430A (en) | 2019-07-02 |
Family
ID=67020141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711413050.2A Pending CN109959430A (en) | 2017-12-24 | 2017-12-24 | A kind of tongue tube water level switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109959430A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964754A (en) * | 2020-08-25 | 2020-11-20 | 芜湖联诺电器有限公司 | Liquid level sensor for special-shaped oil tank |
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|---|---|---|---|---|
| US3702910A (en) * | 1971-03-24 | 1972-11-14 | Simmonds Precision Products | Magnetic float point sensor for high pressure containers |
| CN2128414Y (en) * | 1992-06-20 | 1993-03-17 | 辽宁省能源研究所 | Electromagnetic float level regulator |
| CN200941064Y (en) * | 2006-06-05 | 2007-08-29 | 四川金科环保科技有限公司 | Level measurer |
| CN200982879Y (en) * | 2006-11-14 | 2007-11-28 | 李芳� | Water level and temperature detection device of solar water heater |
| CN201083520Y (en) * | 2007-09-28 | 2008-07-09 | 李芳� | Solar energy water heater water level meter |
| CN201401548Y (en) * | 2009-05-06 | 2010-02-10 | 中远船务工程集团有限公司 | Float type water level regulator |
| CN201796817U (en) * | 2010-01-06 | 2011-04-13 | 上海凡宜科技电子有限公司 | Liquid level switch and float device for liquid level switch |
| CN203364924U (en) * | 2013-07-09 | 2013-12-25 | 中国人民武装警察部队工程大学 | Water level and water temperature detection device of solar water heater |
| CN203405265U (en) * | 2013-08-31 | 2014-01-22 | 李芳� | Water temperature and water level detector of solar water heater |
| CN104934260A (en) * | 2015-06-26 | 2015-09-23 | 中国石油集团西部钻探工程有限公司 | Three-protection liquid level-tracking floating switch |
| CN205016458U (en) * | 2015-10-19 | 2016-02-03 | 北京空港北光仪表有限公司 | Magnetism float liquid level switch |
| CN205508713U (en) * | 2016-03-23 | 2016-08-24 | 江苏晋成空调工程有限公司 | Explosion -proof type floating ball liquid level switch |
| CN105938778A (en) * | 2016-06-23 | 2016-09-14 | 大连美天测控系统有限公司 | Float-type liquid level switch |
-
2017
- 2017-12-24 CN CN201711413050.2A patent/CN109959430A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3702910A (en) * | 1971-03-24 | 1972-11-14 | Simmonds Precision Products | Magnetic float point sensor for high pressure containers |
| CN2128414Y (en) * | 1992-06-20 | 1993-03-17 | 辽宁省能源研究所 | Electromagnetic float level regulator |
| CN200941064Y (en) * | 2006-06-05 | 2007-08-29 | 四川金科环保科技有限公司 | Level measurer |
| CN200982879Y (en) * | 2006-11-14 | 2007-11-28 | 李芳� | Water level and temperature detection device of solar water heater |
| CN201083520Y (en) * | 2007-09-28 | 2008-07-09 | 李芳� | Solar energy water heater water level meter |
| CN201401548Y (en) * | 2009-05-06 | 2010-02-10 | 中远船务工程集团有限公司 | Float type water level regulator |
| CN201796817U (en) * | 2010-01-06 | 2011-04-13 | 上海凡宜科技电子有限公司 | Liquid level switch and float device for liquid level switch |
| CN203364924U (en) * | 2013-07-09 | 2013-12-25 | 中国人民武装警察部队工程大学 | Water level and water temperature detection device of solar water heater |
| CN203405265U (en) * | 2013-08-31 | 2014-01-22 | 李芳� | Water temperature and water level detector of solar water heater |
| CN104934260A (en) * | 2015-06-26 | 2015-09-23 | 中国石油集团西部钻探工程有限公司 | Three-protection liquid level-tracking floating switch |
| CN205016458U (en) * | 2015-10-19 | 2016-02-03 | 北京空港北光仪表有限公司 | Magnetism float liquid level switch |
| CN205508713U (en) * | 2016-03-23 | 2016-08-24 | 江苏晋成空调工程有限公司 | Explosion -proof type floating ball liquid level switch |
| CN105938778A (en) * | 2016-06-23 | 2016-09-14 | 大连美天测控系统有限公司 | Float-type liquid level switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964754A (en) * | 2020-08-25 | 2020-11-20 | 芜湖联诺电器有限公司 | Liquid level sensor for special-shaped oil tank |
| CN111964754B (en) * | 2020-08-25 | 2022-11-15 | 芜湖联诺电器有限公司 | Liquid level sensor for special-shaped oil tank |
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