CN202814505U - Float liquid level display - Google Patents
Float liquid level display Download PDFInfo
- Publication number
- CN202814505U CN202814505U CN 201220476417 CN201220476417U CN202814505U CN 202814505 U CN202814505 U CN 202814505U CN 201220476417 CN201220476417 CN 201220476417 CN 201220476417 U CN201220476417 U CN 201220476417U CN 202814505 U CN202814505 U CN 202814505U
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- float
- water tank
- liquid level
- microswitch
- level display
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- Expired - Fee Related
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Abstract
The utility model relates to a float liquid level display, which consists of a float 4, a float rod 5, a fixed mounting base 6, a switch press plate 7, a microswitch 8 and a control interlocking line 9, wherein the fixed mounting base 6 is arranged on an upper cover plate 1 of a water tank, the fixed mounting base 6, corresponding to the upper cover plate 1 of the water tank, is provided with an open hole, the lower end of the float rod 5 penetrates through the open hole and extends into the water tank, the float 4 is connected with the bottom of the float rod 5, the upper end of the float rod 5 is provided with the switch press plate 7, the microswitch 8 is arranged directly under the switch press plate 7 on the fixed mounting base 6, and the control interlocking line 9 is led out from the microswitch 8. The float liquid level display has the advantages that the liquid level state can be automatically monitored, the structure is simple and reliable, and the normal operation of equipment is protected.
Description
Technical field
The utility model relates to a kind of liquid level emasuring device, especially the float-type liquid level display.
Background technology
The use of high pressure cage model motor liquid soft starter has solved the large difficult problem of high pressure cage model motor starting current in starting process greatly.Along with this product a large amount of popularize and use, increasing customer selecting the liquid resistance soft starting device.
In the use of high pressure cage model motor liquid soft starter, highly pressurised liquid resistance is the core component of this product, and this liquid resistance mainly is comprised of the liquid water tank with resistance characteristic.Because high pressure cage model motor liquid soft starter is in the use procedure of actual field, three liquid resistance water tanks in this soft starter are to be connected in the stator winding loop of high pressure cage model motor, the electrolyte of this liquid resistance water tank inside also can be with high-tension electricity so, its high-tension electricity grade has reached more than the 3000V, the high tension voltage of 10000V (the high tension voltage grade of liquid resistance water tank inside is identical with the high pressure cage model motor grade of rated voltage) even, and the liquid resistance water tank can occur with the phenomenon that the electrolyte temperature raises after use, when raising, the electrolyte water temperature will make so the electrolyte hydrone volatilization in the liquid resistance water tank, cause the minimizing of liquid resistance water tank electrolyte inside body, the reduction phenomenon of liquid level occurs.If access times are more frequent, electrolyte water temperature in the liquid resistance water tank will continue to raise so, the speed of electrolyte hydrone volatilization will be accelerated, liquid resistance water tank electrolyte inside body continuous decrease, phenomenons such as " boiling " can appear even in severe patient, cause casualties and the damage of equipment, had a strong impact on the normal use of equipment.For preventing the appearance of such problem; in the GPF (General Protection False to the liquid resistance water tank; have the monitoring for liquid resistance water tank electrolyte inside body water temperature; also being designed with simultaneously the dual supervisory systems such as examination and controlling for liquid resistance water tank electrolyte inside body water level, is that equipment can use normally.Because the electrolyte composition in the liquid resistance water tank mainly becomes alkalescent, belong to slight corrosive liquids in addition.
So, in the use procedure of high pressure cage model motor liquid soft starter, the examination and controlling of liquid resistance water tank electrolyte inside body water level is just seemed particularly important.The examination and controlling of the type is used in conjunction with each other with the monitor mode for liquid resistance water tank electrolyte inside body water temperature, even in the situation that the monitoring of electrolyte water temperature was lost efficacy, and the normal use of support equipment that also can be to a greater extent.
Because of liquid resistance water tank electrolyte inside body in use with high tension voltage, mainly be glass-tube formula liquid level display at present conventional electrolyte water level detecting and monitor mode and in water tank, place two kinds of detection modes such as floating ball type liquid level display.
Glass-tube formula liquid level display structure is to make a call to a mounting hole in the peak level position of liquid resistance water tank front apron 2 electrolytes, make a call to again a mounting hole in the lowest water level position of electrolyte in addition, then glass-tube formula liquid level display 14 is installed to water tank front apron 2(such as Fig. 1), judge the water level of liquid resistance water tank electrolyte inside body by the position of observing the red small floating ball 15 in the glass-tube formula liquid level display glass-tube on the tank outer wall.
Its principle of work is that when liquid resistance water tank electrolyte inside body 3 was in ordinary water level, the red liquid-level floater 15 in glass-tube formula liquid level display 14 glass-tubes was in the centre position of glass-tube; When liquid resistance water tank electrolyte inside body 3 was in peak level, the red liquid-level floater 15 in glass-tube formula liquid level display 14 glass-tubes was in the extreme higher position of glass-tube; When liquid resistance water tank electrolyte inside body 3 was in minimum warning line, the red liquid-level floater 15 in glass-tube formula liquid level display 14 glass-tubes was in the extreme lower position of glass-tube.Although the detection of this kind mode is more directly perceived, must need artificial going to observe, and the detection mode of the type can only demonstrate the water level of liquid resistance water tank electrolyte inside body and can't access electric control loop.When electrolyte is in minimum warning line lower even the time, can not send timely failure alarm signal by control loop, the more important thing is that glass-tube formula liquid level display is in installation process, the technological requirement of its installation is higher, if insecure or poor sealing occurs installing, or when glass-tube breaks in transportation or use procedure, so will seepage with the electrolyte of high tension voltage, so will there be extremely serious potential safety hazard.Electrolyte composition in the liquid resistance water tank mainly becomes alkalescent in addition, belong to slight corrosive liquids, in use for some time, can to glass-tube and water tank binding site gradually corrosion and fluid seepage finally appears, and the residual corrosive liquid of glass-tube inwall is known from experience and is polluted glass-tube, causes and observes the fuzzy phenomenon such as can't observe even.At present this type of monitoring mode is because of the use that is eliminated gradually of above-mentioned reason.
The method of placing the ball float detection in water tank is, in liquid resistance water tank inside a ball float has been installed, the main raw material(s) of this ball float manufacturing is that tygon (is annotated: tygon, English name: polyethylene, being called for short PE, is a kind of thermoplastic resin that ethene makes through polymerization.The tygon odorless, nontoxic, the feel ceraceous, chemical stability is good, and the erosion of the most of soda acids of ability is insoluble to common solvent under the normal temperature, and water absorptivity is little, electrical insulation capability is good), adopt hollow blow molding to be made, profile is the hollow ball-shape object of sealing.Its structure of floating ball type liquid level display mainly fixedly mounts base 25 and Liquid level scale 26 etc. by plastic floating ball 24, ball float and forms, and ball float fixed installation base 25 is installed in the suitable place of liquid resistance tank upper cover plate 1.Its principle of work is that when liquid resistance water tank electrolyte inside body 3 was in ordinary water level or high water stage, plastic floating ball 24 relied on and self produces buoyancy upwards, drove Liquid level scale 26 and rose; When liquid resistance water tank electrolyte inside body 3 is lower than warning line, plastic floating ball 24 relies on the gravity that self produces, drive Liquid level scale 26 and descend, by observing the scale on the Liquid level scale 26, thereby demonstrate the height (such as Fig. 2) of liquid resistance water tank electrolyte inside body 3 liquid levels.The type detection mode is different from glass-tube formula liquid level display, and it does not exist the seepage of charged electrolyte and excessive phenomenon, has very high safety coefficient, and higher safety assurance also is provided.The characteristics such as meanwhile, the liquid level detection architecture of the type is simple, and serviceable life is long.But because equipment in use, liquid resistance water tank electrolyte inside know from experience to produce higher temperature (water temperature Gao Shike reach degree centigrade 80 ~ 100 ℃), if equipment liquid resistance water tank electrolyte inside body obsolete the time can be down to again normal temperature (can reach when water temperature is low degree centigrade 1 ~ 3 ℃), because ball float is directly to be placed in the electrolyte, ball float will be often in the use procedure that continues and in the variation that is in normal temperature and higher temperature repeatedly so, if the ball float manufacturing process is defective, breaking will appear in ball float so, the phenomenons such as infiltration, thereby can't work normally, measuring ability is affected.
In sum, how both safety realizes again the liquid in the water tank is detected and controls reliably, just is manufacturing firm and a knotty problem using the client always.
Summary of the invention
The utility model effectively provides a kind of both safety, can realize reliably again the liquid level of the charged liquid medium in the water tank is carried out the mode that examination and controlling is reported to the police.
Float-type liquid level display of the present utility model, formed by floating drum 4, float lever 5, fixed installation base 6, switch press plate 7, microswitch 8, control interlocking line 9, fixed installation base 6 is installed on the tank upper cover plate 1, fixed installation base 6 arranges perforate with tank upper cover plate 1 correspondence position, float lever 5 lower ends are passed perforate and are stretched in the water tank, floating drum 4 is connected to float lever 5 bottoms, float lever 5 upper ends arrange switch press plate 7, microswitch 8 is installed in position under the switch press plate 7 of fixed installation on the base 6, and control interlocking line 9 is drawn from microswitch 8.
Floating drum 4 is to select the special-purpose English full name Poly of the material PPC(propylene carbonate lined polymethyl ethylene carbonate of making of highly pressurised liquid resistance water tank to be called again poly (propylene carbonate) in this float-type liquid level display, to cause that the main atmospheric carbon dioxide of " greenhouse effect " is the environment-friendly type plastic of a kind of Wholly-degradable that raw material synthesized, good insulation preformance, the acid and alkali corrosion that ability is stronger) be made, profile is the hollow tubular object of sealing.Its principle of work of float-type liquid level display is, when liquid resistance water tank electrolyte inside body 3 is in ordinary water level or high water stage, floating drum 4 relies on and self produces buoyancy upwards, driving float lever 5 rises, thereby make switch press plate 7 leave microswitch 8, normally closed contact in the microswitch 8 disconnects, and does not send alerting signal by control interlocking line 9 access electric control loops; When liquid resistance water tank electrolyte inside body 3 is lower than warning line, floating drum 4 relies on the gravity that self produces, driving float lever 5 descends, the switch press plate 7 that is installed on the float lever 5 is depressed microswitch 8, normally closed contact in the microswitch 8 is converted to closure state by off-state, by sending alerting signal behind the control interlocking line 9 access electric control loops.The alerting signal of the type can expand to breaking signal, can act on the disjunction actuating signal of control switch in the electric major loop, thereby has protected the normal use of equipment.
Description of drawings
Fig. 1 is glass-tube formula liquid level display structure installation diagram.
Fig. 2 is floating ball type liquid level display device structure installation diagram.
Fig. 3 is float-type liquid level display device structure installation diagram.
Embodiment
Below in conjunction with description of drawings the utility model:
As shown in Figure 3, float-type liquid level display of the present utility model, by floating drum 4, float lever 5, fixed installation base 6, switch press plate 7, microswitch 8, control interlocking line 9 forms, fixed installation base 6 is installed on the tank upper cover plate 1, fixed installation base 6 arranges perforate with tank upper cover plate 1 correspondence position, float lever 5 lower ends are passed perforate and are stretched in the water tank, floating drum 4 is connected to float lever 5 bottoms, contact with electrolyte 3, float lever 5 upper ends arrange switch press plate 7, microswitch 8 is installed in position under the switch press plate 7 of fixed installation on the base 6, and control interlocking line 9 is drawn from microswitch 8.2 is the water tank front apron among the figure, and arrow is depicted as the direction that moves up and down that floating drum 4 drives float lever 5 and switch press plate 7 among the figure.
When liquid resistance water tank electrolyte inside body 3 is in ordinary water level or high water stage, floating drum 4 relies on and self produces buoyancy upwards, drive 5 liters of float levers, thereby make switch press plate 7 leave microswitch 8, normally closed contact in the microswitch 8 disconnects, and does not send alerting signal by control interlocking line 9 access electric control loops; When liquid resistance water tank electrolyte inside body 3 is lower than warning line, floating drum 4 relies on the gravity that self produces, driving float lever 5 descends, the switch press plate 7 that is installed on the float lever 5 is depressed microswitch 8, normally closed contact in the microswitch 8 is converted to closure state by off-state, by sending alerting signal behind the control interlocking line 9 access electric control loops.The alerting signal of the type can expand to breaking signal, can act on the disjunction actuating signal of control switch in the electric major loop, thereby has protected the normal use of equipment.
Claims (1)
1. float-type liquid level display, it is characterized in that: by floating drum (4), float lever (5), fixed installation base (6), switch press plate (7), microswitch (8), control interlocking line (9) forms, fixed installation base (6) is installed on the tank upper cover plate (1), fixed installation base (6) arranges perforate with tank upper cover plate (1) correspondence position, float lever (5) lower end is passed perforate and is stretched in the water tank, floating drum (4) is connected to float lever (5) bottom, float lever (5) upper end arranges switch press plate (7), microswitch (8) is installed in position under the switch press plate (7) in fixed installation base (6), and control interlocking line (9) is drawn from microswitch (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220476417 CN202814505U (en) | 2012-09-19 | 2012-09-19 | Float liquid level display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220476417 CN202814505U (en) | 2012-09-19 | 2012-09-19 | Float liquid level display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202814505U true CN202814505U (en) | 2013-03-20 |
Family
ID=47873365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220476417 Expired - Fee Related CN202814505U (en) | 2012-09-19 | 2012-09-19 | Float liquid level display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202814505U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124003A (en) * | 2016-06-14 | 2016-11-16 | 浙江信达可恩消防实业有限责任公司 | The alarm device of level gauging in high pressure sealing container |
| CN108955828A (en) * | 2018-06-29 | 2018-12-07 | 东软威特曼生物科技（沈阳）有限公司 | Liquid detection device, container |
-
2012
- 2012-09-19 CN CN 201220476417 patent/CN202814505U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124003A (en) * | 2016-06-14 | 2016-11-16 | 浙江信达可恩消防实业有限责任公司 | The alarm device of level gauging in high pressure sealing container |
| CN108955828A (en) * | 2018-06-29 | 2018-12-07 | 东软威特曼生物科技（沈阳）有限公司 | Liquid detection device, container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20210919 |