CN2249422Y - Liquid-level auto-control device - Google Patents
Liquid-level auto-control device Download PDFInfo
- Publication number
- CN2249422Y CN2249422Y CN 95207547 CN95207547U CN2249422Y CN 2249422 Y CN2249422 Y CN 2249422Y CN 95207547 CN95207547 CN 95207547 CN 95207547 U CN95207547 U CN 95207547U CN 2249422 Y CN2249422 Y CN 2249422Y
- Authority
- CN
- China
- Prior art keywords
- liquid
- liquid level
- control
- level
- automatic control
- 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 - Fee Related
Links
Images
Landscapes
- Control Of Non-Electrical Variables (AREA)
Abstract
The utility model relates to a liquid-level auto-control device which comprises a mechanical part and an electronic control part, wherein, the mechanical part comprises a floating ball and a magnet connected with the floating ball. When the liquid level changes, the floating ball can rise and fall with the liquid level, so that the magnet can be driven to displace, and therefore, a hall element which is used as a magneto-dependent sensor receives the change of the magnetic field intensity. When the input of the hall element changes, the output voltage changes with the change of the input. The liquid level can be displayed at a real time, and simultaneously, the opening and closing of an electromagnetic valve can be controlled to control the liquid level through a signal amplification circuit, a liquid-level control and executive circuit, etc. The liquid-level auto-control device also comprises a liquid-level presetting mechanism, liquid feeding forcing mechanism and a liquid overflow display control mechanism. The utility model has the function of displaying the dry combustion of a boiling-water heater. The liquid level can be accurately controlled and displayed, and the liquid level can also be specially controlled according to needs.
Description
The utility model relates to a kind of automatic control of liquid device, and the automatic control of liquid device comprising boiler is used is used in boiler but be not limited in.
The fluid level control device that utilizes float lifting control feed liquor valve to open and close, be common in daily, various forms of water closets etc. for example.The disadvantage of this class mechanical type water-level control apparatus is that departure is big, poor reliability, and is inapplicable.
With the immediate prior art of the utility model, be to utilize ball float lifting magnet to produce displacement, and control electromagnetic valve keying by this magnet driving tongue tube break-make, fluid level control device with the lifting of control liquid level, for example Chinese patent is announced CN2036291U, disclosed technology among CN2063248U and the CN2064516U.
The fluid level control device of prior art, make magneto-dependent sensor owing to adopt tongue tube, so the control of its liquid level is limited to " 1 " and " 0 " two kinds of duties, its effect waits and is used for aforementioned mechanical type fluid level control device, exist equally departure greatly, the shortcoming of poor reliability.Moreover, this class fluid level control device does not mostly have liquid level to give to put and forces fluid infusion mechanism, uses the function dullness, and is very inconvenient.And when in electric water boiler, using, make the electric heater dry combustion method often in low liquid level owing to lack automatic protection, cause the electric heating tube damage.
Goal of the invention of the present utility model promptly is to overcome the many disadvantages of prior art and a kind of simple in structure, good reliability, function is many, the scope of application is extensive automatic control of liquid device is provided, can be applied to the high multiple liquid level control of accuracy requirement, especially in all kinds of electricallly heated water boiling vessels, and can avoid cold, boiling water to mix water and the quality of boiling water is provided safeguard.
The technical measures that realization the utility model purpose is taked are as follows: adopt hall device to make magneto-dependent sensor, to replace tongue tube of the prior art.The ball float that suspends in liquid storage vessel, and driven eccentric wheel rotation through linkage assembly and driven magnet and move by this ball float is to change the distance between itself and the hall device.When distance changed, hall device changes according to external magnetic field changed its output signal thereupon, and use the keying of solenoid valve is controlled, thus the purpose that realization is controlled automatically to liquid level.
In order to improve control accuracy, should make the moving direction of ball float and the lifting direction strict conformance of liquid level, this is even more important for boiler.For this reason, the ball float in this fluid level control device is installed on the retainer, and can move up and down along an axis of guide, and is consistent with liquid level lifting direction to guarantee its direction of motion.Moreover.Be to improve control accuracy, the magnet in this fluid level control device is installed in can be along on the accurate sliding shoe that slides of fixed-direction, and can accurately return to its reference position by means of retracing spring.In addition, for being applicable to the liquid storage vessel of different size, can change the structure of linkage assembly according to actual conditions.For example in small-sized storage, can be reduced to a connecting rod, directly drive the eccentric wheel rotation; In large-scale storage, can adopt two or many connecting rods and/or change different length of connecting rods.
Put for different liquid levels is given, be provided with liquid level in the fluid level control device of the present utility model and give and put button.And pressure fluid infusion button in control circuit, is equipped with, arbitrarily to open the manual fluid infusion of solenoid valve under the liquid level.In addition, also increasing in control circuit has the heating control circuit of stopping, and makes with generation control signal when hanging down liquid level to add thermal break, and heater element is carried out protection.
More detailed structure of the utility model and advantage will become clearer by the specific embodiment of setting forth below in conjunction with accompanying drawing, wherein:
Fig. 1 is an automatic control of liquid device for mechanical structural drawing of the present utility model;
Fig. 2 is the electric control schematic diagram of the utility model automatic control of liquid device;
Fig. 3 is the control circuit figure of the utility model automatic control of liquid device.
Referring to accompanying drawing 1.Wherein ball float 10 is suspended above on the retainer 11, and can do upper and lower slip along the axis of guide 12.When liquid level rose, ball float 10 liquid body buoyancys were risen along the axis of guide 12, and process linkage assembly 7 and 9 drives eccentric wheels or cam 6 rotates around its rotating shaft.Promoting sliding shoe 13 therefrom is in axial sliding along guide rail.Be embedded in the magnet 14 on the slide block 13, slide vertically together, thereby change it and be located at the distance of 20 of the magneto sensors of the other end on the same axis in company with slide block 13.When the distance of 20 of magnet 14 and magneto sensors changes, the magnetic field intensity that magneto sensor 20 receives will change thereupon, thereby change the size of its output signal.The configuration of retracing spring 5, be when liquid level descends, ball float 10 sinks by the weight of self, drivening rod mechanism 7,9 and eccentric wheel 6 rotations, thereby make it restore to the position corresponding with liquid level, for making slide block 13 and embedding magnet thereon return to the relevant position, and eliminate backlash therebetween for the mobile equilibrium that keeps floating ball rod one eccentric wheel one slide block movement system.
The linkage assembly that provides among the figure includes connecting rod 7 and lower link 9 and is positioned between the two coupling shaft, is applicable to large-scale liquid reservoir.And length of connecting rod and connecting rod radical can increase and decrease as required, to adapt to the storage of different size.8 and 17 is bearing pin among the figure, and 15,16,19 and 3 is set nut, and 18 is back-up ring, and 31 are the storage liquid container, and 4 is supporting mass.
As shown in the figure, magneto sensor 20 is by holder 1 supporting, and the relative distance that itself and magnet are 14 can be proofreaied and correct by setting nut 2.The position of solenoid valve (not shown) is controlled by the output of magneto sensor, and is regulated by control circuit, and its regulating and controlling principle is referring to accompanying drawing 2.
As shown in Figure 2, when magnet 14 is subjected to displacement with respect to magneto-dependent sensor 20, magneto-dependent sensor 20 (for example hall element sensor) provides a continually varying voltage signal with the variation of magnetic field intensity at its output terminal, carry out after signal amplifies through 21, show on 22 in liquid level by corresponding light emitting diode to demonstrate pairing liquid level.And meanwhile, control liquid level control executing mechanism 24 (for example solenoid valves) by the output that signal amplifies, with the lifting of control liquid level.And can give through liquid level and put 23 and it is given put in needed liquid level.25 is power supply.
Fig. 3 is the physical circuit figure that finishes electric control principle among Fig. 2, the corresponding circuits of function in the execution graph 2 wherein, adopt with Fig. 2 in identical numbering, and with dashed lines is indicated.
Referring to accompanying drawing 3, this controller adopts the 220V electric main, is connecting K switch
1Receive transformer B through fuse BX afterwards
1Input end.By this transformer B
1Two 15V of output terminal output exchange low-voltage, through D
1-D
4Rectification, C
1-C
3And C
4-C
8Filter stream, 7812 and 7912,7805 voltage stabilizings, then export stable ± 12V and+voltage of 5V.Pass through R
1And R
2Hall element IC feeds
1With the DC voltage of ± 12V, and provide+feed of 5V for circuit subsequently.Hall element IC
1The voltage signal that changes in the output of its output terminal according to its received different magnetic field is with after R
3And R
4Be defeated by operational amplifier IC
2(for example LM714) amplifies as signal, to satisfy voltage comparator ic
3(for example LM3914) is to the requirement of input voltage value.Voltage comparator ic
3To compare by the voltage signal reference voltage inner of pin 5 input with it, and the external LED of importing according to voltage of its output terminal of big young pathbreaker
2, LED
4, LED
6, LED
3, LED
10Or LED
11, light, thereby demonstrate different liquid levels.This liquid level display mode comprises that point-mode display and line formula show two kinds.IC
3The voltage of 9 pin be subjected to relay J control, J when feed liquor
1-1Adhesive is noble potential, and then the way of output of integrated package is that line shows, promptly rises along with liquid level and makes LED
10, 8,6,4,2, successively all light.J when stopping feed liquor
1-1Disconnect and make 9 pin not have voltage, then integrated package shows for point.
IC
3Supply voltage provide by 3 pin after through 7805 step-downs, purpose is to reduce its power consumption.
Liquid level control implementation includes the fluid infusion process and stops the fluid infusion process.In the time of in being in the fluid infusion process, with LED
10As following liquid level display lamp, and this lamp is lighted when liquid level drops to liquid level.This process comprises through T
1, T
3Conversion and at trigger circuit IC
4Low level of triggering for generating on 2 pin of (for example LM555), and make IC
43 pin output terminals become high level, at this moment solid-state relay SSR has input voltage and conducting, thereby solenoid valve V is opened and gives the liquid reservoir fluid infusion.When being in when stopping in the fluid infusion process LED
2As last liquid level display lamp, this lamp is lighted when liquid rises to liquid level.With this variation process T
2Conversion and at trigger circuit IC
46 pin on high level of triggering for generating, and make IC
43 pin output terminals become low level, at this moment solid-state relay SSR ends because of input voltage cancellation, thereby solenoid valve V is closed because of losing voltage, thereby stops fluid infusion, so just reaches the purpose of controlling liquid level.
K
2-K
5Giving for liquid level and to put switch, be interlocking between them, and each switch all is a double-break switch.When pressing different switches, then a cutter of this switch is connected to give and is put display lamp and with LED
3,5,7,9In an its corresponding lamp light, its another cutter then is connected on liquid level display lamp LED
2,4,6,8In give with this and to put on the corresponding lamp of display lamp, carry out control gear thereby give liquid level, and liquid level controlled automatically the voltage signal of this liquid level.
K
8Be to force the feed liquor switch, when liquid level is pressed this button K during not in last liquid level
6Make IC
42 pin become low level, thereby make solenoid valve V positive opening and force feed liquor for the storage liquid container.
Also being provided with the demonstration of liquid reservoir discharge, control circuit and boiler dry combustion method in the utility model shows.Discharge control comprises LED
1And R
10, work as K
2-K
5Disconnection promptly is not provided with liquid level and gives when putting, and rises under the highest situation in liquid level, by the effect of these two elements in this control circuit solenoid valve cuts out voluntarily, thereby avoids discharge.
LED
11Display lamp during for the boiled water tank dry combustion method.When the boiler middle water level is reduced to down water level,, then can't give the boiler moisturizing, thereby can make the boiler dry combustion method if under the situation that solenoid valve is opened, cut off the water.LED
11Light to a certain degree the time in decline of water table, so just can point out people to cut off the boiler power supply in advance to avoid dry combustion method.
As mentioned above, automatic control of liquid device of the present utility model, can not only control and show the liquid level height exactly, and have liquid level and give multiple functions such as putting, force feed liquor, discharge demonstration and control and boiled water tank dry combustion method demonstration, can be widely used in comprising the various liquid level controls of boiler, and can overcome the inherent shortcoming of various ripple level controllers in the above-mentioned prior art, a kind of desirable fluid level control device is provided.
Embodiment of the present utility model and advantage will become clearer from the above embodiment that elaborates in conjunction with the accompanying drawings.Yet scope of the present utility model is not limited to this embodiment, and thinks, the various variations and the concrete scheme of carrying out based on the spirit that proposes in claims all belong to protection domain of the present utility model.
Claims (9)
1. automatic control of liquid device, the solenoid valve that includes ball float and the magnet, the magneto-dependent sensor that link to each other with this ball float and controlled by this magneto-dependent sensor, and by the keying of this solenoid valve control liquid level lifting and the height, it is characterized in that: utilize Hall element to make magneto-dependent sensor, be installed near the magnet, change its spacing from causing that change of magnetic field strength changes the size of its output signal according to the liquid level lifting, and the keying by the control circuit control electromagnetic valve.
2. automatic control of liquid device according to claim 1 is characterized in that: be provided with liquid level in the control circuit and give and put mechanism, put so that liquid level is just given.
3. automatic control of liquid device according to claim 1 is characterized in that: be provided with in the control circuit and force feed liquor mechanism, to press this key when the liquid level arbitrarily solenoid valve is opened, thereby realize manual fluid infusion and liquid level is promoted to gives take the altitude.
4. automatic control of liquid device according to claim 1 is characterized in that: be provided with discharge demonstration automatically, control gear and boiler dry combustion method in the control circuit and show, go out liquid reservoir and avoid the boiler dry combustion method with control storage hydrorrhea.
5. according to the described automatic control of liquid device of arbitrary claim among the claim 1-4, it is characterized in that: be connected with linkage assembly between ball float and the eccentric wheel, for example include connecting rod and lower link.
6. according to the described automatic control of liquid device of arbitrary claim among the claim 1-4, it is characterized in that; Ball float is loaded on the retainer, and can do upper and lower moving along the axis of guide; Magnet is embedded among the sliding shoe, and can borrow retracing spring to realize resetting.
7. automatic control of liquid device according to claim 2 is characterized in that: be arranged on liquid level in the control circuit and give and put mechanism, comprise that liquid level is given to put switch (K
2-K
5) and give and put display lamp (LED
3,5,7,9), and by liquid level topworks liquid level is given and to put.
8. automatic control of liquid device according to claim 3 is characterized in that: this pressure feed liquor mechanism is by forcing feed liquor switch (K
6) form, and by trigger circuit (IC
4) make solenoid valve (V) positive opening and force feed liquor.
9. automatic control of liquid device according to claim 4 is characterized in that: discharge shows, control gear comprises light emitting diode (LED
1) and resistance (R
10), control discharge by closed electromagnetic valve; The boiler dry combustion method shows then by light emitting diode (LED
11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95207547 CN2249422Y (en) | 1995-04-13 | 1995-04-13 | Liquid-level auto-control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95207547 CN2249422Y (en) | 1995-04-13 | 1995-04-13 | Liquid-level auto-control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2249422Y true CN2249422Y (en) | 1997-03-12 |
Family
ID=33859154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95207547 Expired - Fee Related CN2249422Y (en) | 1995-04-13 | 1995-04-13 | Liquid-level auto-control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2249422Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936564A (en) * | 2012-11-26 | 2013-02-20 | 无锡赛德生物工程有限公司 | Ammonia supplementing device for enzyme preparation fermentation |
| CN103488199A (en) * | 2013-09-17 | 2014-01-01 | 深圳市基泰智能设备有限公司 | Device and method for controlling feeding and discharging of defoaming mechanism |
| WO2014032547A1 (en) * | 2012-08-30 | 2014-03-06 | Emerson Machinery Equipment (Shenzhen) Co., Ltd | Liquid level detectors |
| CN104615162A (en) * | 2015-02-03 | 2015-05-13 | 安康学院 | Water level control alarm system |
| CN107356137A (en) * | 2017-06-15 | 2017-11-17 | 庞淮升 | Air conditioner afterheat thermal-arrest water system |
| CN112880776A (en) * | 2020-12-29 | 2021-06-01 | 山西裕鼎精密科技有限公司 | Liquid level detection and control system |
| CN113606351A (en) * | 2021-08-06 | 2021-11-05 | 杭州嘉隆物联网科技有限公司 | Intelligent subsea valve for residual oil detection and use method |
| WO2023103374A1 (en) * | 2021-12-11 | 2023-06-15 | 帝舍智能科技(武汉)有限公司 | Low-noise water tank for cleaning device, and cleaning device |
-
1995
- 1995-04-13 CN CN 95207547 patent/CN2249422Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014032547A1 (en) * | 2012-08-30 | 2014-03-06 | Emerson Machinery Equipment (Shenzhen) Co., Ltd | Liquid level detectors |
| CN102936564A (en) * | 2012-11-26 | 2013-02-20 | 无锡赛德生物工程有限公司 | Ammonia supplementing device for enzyme preparation fermentation |
| CN103488199A (en) * | 2013-09-17 | 2014-01-01 | 深圳市基泰智能设备有限公司 | Device and method for controlling feeding and discharging of defoaming mechanism |
| CN103488199B (en) * | 2013-09-17 | 2016-08-17 | 广东基泰智能设备有限公司 | Defoaming mechanism input and output material controls Apparatus and method for |
| CN104615162A (en) * | 2015-02-03 | 2015-05-13 | 安康学院 | Water level control alarm system |
| CN104615162B (en) * | 2015-02-03 | 2017-07-21 | 安康学院 | A kind of water level control warning system |
| CN107356137A (en) * | 2017-06-15 | 2017-11-17 | 庞淮升 | Air conditioner afterheat thermal-arrest water system |
| CN107356137B (en) * | 2017-06-15 | 2019-04-02 | 庞淮升 | Air conditioner afterheat collection hot water system |
| CN112880776A (en) * | 2020-12-29 | 2021-06-01 | 山西裕鼎精密科技有限公司 | Liquid level detection and control system |
| CN113606351A (en) * | 2021-08-06 | 2021-11-05 | 杭州嘉隆物联网科技有限公司 | Intelligent subsea valve for residual oil detection and use method |
| WO2023103374A1 (en) * | 2021-12-11 | 2023-06-15 | 帝舍智能科技(武汉)有限公司 | Low-noise water tank for cleaning device, and cleaning device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2249422Y (en) | Liquid-level auto-control device | |
| CN211603958U (en) | Balance water inlet control device for sewage biochemical pool | |
| CN204945816U (en) | A kind of photoelectric level control device | |
| CN103409712B (en) | Tin device warded off by coil | |
| CN204808058U (en) | Improvement structure of water level detector of boiler | |
| CN2901163Y (en) | Dynamic constant temperature and constant pressure electric water heater controller | |
| CN200986668Y (en) | Simple lever type water level controller | |
| CN202993628U (en) | Detecting device of solar water heater | |
| CN201215630Y (en) | Full-automatic liquid level controller | |
| CN103480529A (en) | Automatic electronic liquid-level control device for crystal film-shooting machine and control method of automatic electronic liquid-level control device | |
| CN2150577Y (en) | Multipurpose automatic controller for liquid level | |
| CN208377558U (en) | Automatic liquid supply device | |
| CN2100658U (en) | Induction water level controller | |
| CN2546920Y (en) | Full-automatic liquid level controller | |
| CN112198907A (en) | Device and method for automatically controlling level of pit sewage | |
| CN201181425Y (en) | Fluid level control apparatus for pure water container | |
| CN100558456C (en) | A kind of liquid-discharging system and use its rectifying column | |
| CN2212383Y (en) | Full-automatic controller for shower bath cabinet | |
| CN209373454U (en) | A kind of automatic control system of swimming pool water temperature | |
| CN201020295Y (en) | Rectification tower | |
| CN2288426Y (en) | Liquid level display device | |
| CN2437927Y (en) | Floating ball controlled electric water intake device | |
| CN217836314U (en) | Direct-injection type sterilization machine | |
| CN2563515Y (en) | Water inlet control device of solar water heater | |
| CN2265555Y (en) | Automatic liquid level controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |