CN100495619C - Water Protection Relay - Google Patents
Water Protection Relay Download PDFInfo
- Publication number
- CN100495619C CN100495619C CNB2006100416493A CN200610041649A CN100495619C CN 100495619 C CN100495619 C CN 100495619C CN B2006100416493 A CNB2006100416493 A CN B2006100416493A CN 200610041649 A CN200610041649 A CN 200610041649A CN 100495619 C CN100495619 C CN 100495619C
- Authority
- CN
- China
- Prior art keywords
- resistor
- operational amplifier
- insulating tube
- signal processing
- water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract 10
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims 1
- 229920005372 Plexiglas® Polymers 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910000679 solder Inorganic materials 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model provides a lead to water protection relay, its signal detection includes be equipped with two gauge rods that the front end is located the insulating tube on the insulating tube, and two gauge rods communicate through electrically conductive tab wire respectively, and the insulating tube both ends are equipped with the pipeline connector. The output end of the signal processing computational amplifier is connected with a triode, the in-phase end of the signal processing computational amplifier is connected with a resistor connecting end and a resistor in series, and the water resistor connecting end is respectively connected with a wire; the actuator comprises a relay, i.e. a diode connected in parallel therewith. The invention solves the technical problems of complex structure and high cost in the background technology. The invention has simple structure and manufacturing process, low product cost, minimum volume of 50 multiplied by 42 multiplied by 32mm, simple and convenient installation, disassembly and maintenance, and no influence of liquid flow on control.
Description
Technical field
The present invention relates to a kind of relay.
Background technology
For guaranteeing normal, the safe operation of industrial production and scientific research apparatus, usually need feed water or other liquid media, be used for cooling protection, conduction etc.
At present, common water flowing protective device adopts electromagnetic valve structure more, and its principle is: enough hydraulic pressure acts on the diaphragm sealing together, by stage clip of the suffered pressure-driven of holding of seal membrane, makes electromagnetically operated valve and power connection.Because therefore the electromagnetic valve structure complexity adopts the water flowing protective device structure of electromagnetically operated valve complicated, volume is big, Heavy Weight, cost height.
Water flowing protective device by the gas pressure energized; be to make the contacting power supply by gas pressure; it exists not only that complex structure, volume are big, Heavy Weight, defective that processing cost is high; and replacing, maintenance difficult; requirement to gas flow when realizing control is strict, and product is also shorter useful life.
Summary of the invention
The object of the present invention is to provide a kind of relay, it has solved complex structure in the background technology, the technical problem that cost is high.
Technical solution of the present invention is:
A kind of relay comprises input 1, is connected to the signal processing 2 of this input 1 output, is connected to the actuator 3 of described signal processing 2 outputs, and its special character is:
Described input 1 comprises insulated tube 4, two feelers 6,9 that be arranged on the described insulated tube 4, front end are positioned at this insulated tube 4, by the lead 7,8 of 5,10 and two feeler 6,9 electric connections of conductive clips, the two ends of described insulated tube 4 are provided with pipeline connector 11 respectively;
Described signal processing 2 comprises operational amplifier IC, is connected to the triode T of described operational amplifier IC output, is connected to first resistance R 1 of described operational amplifier IC input, the water resistance link that is connected in series with described first resistance R 1
Described water resistance link
Be connected with lead 7,8 respectively;
Described actuator 3 comprises the relay J that is connected to triode T output, with described relay J diode connected in parallel D.
Above-mentioned two feelers 6,9 all can along axially or radially being provided with of insulated tube 4.
Above-mentioned conductive clips 5,10 can adopt weld tabs, bolt or metallic gasket etc., described conductive clips 5,10 respectively with feeler 6,9 threaded engagement or tight contact matching.
Above-mentioned feeler 6,9 and insulated tube 4 threaded engagement or tight fit, or described feeler 6,9 is fixed on the insulated tube 4.The threaded engagement of feeler 6,9 and insulated tube 4 can adopt conductive clips 5,10 is fixed on the insulated tube 4, again with feeler 6,9 respectively with conductive clips 5,10 threaded engagement.
Above-mentioned connector 11 is and the hickey of pipeline threaded engagement or the interface of pegging graft and cooperating with pipeline.
Be connected to the 5th resistance R 5 between the base stage of above-mentioned triode T and the operational amplifier IC output; The end of oppisite phase of described operational amplifier IC is connected to mutually the 3rd resistance R 3 of serial connection and the node of the 4th resistance R 4, the output of a termination operational amplifier IC of described serial connection the 3rd resistance R 3, the 4th resistance R 4, other end ground connection.
Above-mentioned first resistance R 1 that is connected to operational amplifier IC input is good to adopt adjustable resistance.
Above-mentioned insulated tube 4 is good to adopt polycarbonate tubing, also can adopt organic glass tube or plastic pipe etc.
Above-mentioned insulated tube 4 is good to adopt transparent tube.
The present invention has the following advantages:
1. simple in structure, manufacture craft is simple.
2. what make employing all is universal component parts simple, that be easy to get, and product cost is low.
3. volume is little.The volume minimum can be 50 * 42 * 32mm.
4. install, dismantle, safeguard all easy.
5. control not liquid body flow size influence.
Description of drawings
Fig. 1 is a theory diagram of the present invention;
Fig. 2 is the structural representation of input of the present invention;
Fig. 3 is the principle schematic of signal processing 2 of the present invention and actuator.
Drawing reference numeral explanation: 1-input, 2-signal processing, 3-actuator, 4-insulated tube, 5-conductive clips, 6-feeler, 7-lead, 8-lead, 9-feeler, 10-conductive clips, 11-connector; R1-first resistance, R2-equivalent resistance, R3-the 3rd resistance, R4-the 4th resistance, R5-the 5th resistance, IC-operational amplifier, T-triode, J-relay, D-diode;
The water resistance link.
Embodiment
Referring to accompanying drawing 1, the present invention utilizes the conductivity of water, is the signal of telecommunication with the water flowing conversion of signals, to realize the water flowing protection.
The present invention mainly is made of input 1, signal processing 2 and actuator 3.
The insulated tube 4 of input 1 is provided with two feelers 6,9, and the front end of feeler 6,9 is positioned at insulated tube 4, and it all can along axially or radially being provided with of insulated tube 4.Insulated tube 4 is good to adopt polycarbonate tubing, also can adopt organic glass tube or plastic pipe etc. Lead 7,8 is respectively by 5,10 and two feeler 6,9 electric connections of conductive clips.Feeler 6,9 is a conducting rod, is good to adopt the stainless steel screw rod. Conductive clips 5,10 can adopt weld tabs, bolt or metallic gasket etc., it is bonding, riveted joint or by nut compressing, be fixed in insulated tube 6 surfaces, also can be divided on the feeler 6,9.
The operational amplifier IC of signal processing 2, its output is connected to triode T, and in-phase end is serially connected with first resistance R 1 and water resistance link
The water resistance link
Be connected with lead 7,8 respectively, first resistance R 1 is good to adopt adjustable resistance.Be connected to the 5th resistance R 5 between the base stage of triode T and the operational amplifier IC output.The end of oppisite phase of operational amplifier IC is connected to mutually the 3rd resistance R 3 of serial connection and the node of the 4th resistance R 4, is connected in series the output of a termination operational amplifier IC of the 3rd resistance R 3 and the 4th resistance R 4, other end ground connection.Operational amplifier IC border factually need choose, as, can adopt μ A741 etc.
The relay J of actuator 3 is connected to the output of triode T, and relay J is parallel with protection diode D.
When current during by insulated tube 4 of the present invention, diversion stream between the feeler 6,9 and conducting, water resistance link
With the water resistance that conductive clips 5, feeler 6, water, feeler 9, conductive clips 10 constitutes, promptly equivalent resistance R2 inserts in the signal processing 2, makes the operational amplifier IC energized Vcc in the signal processing 2 and works.Operational amplifier IC drives triode T conducting, and it is electric that the output of triode T gets the coil of the relay J that is connected to its collector electrode, the contact action of relay J, control operation.
When the current in the insulated tube 4 interrupt, be in off-state between the feeler 6,9, i.e. not conducting, water resistance link
Operational amplifier IC and power Vcc in the signal processing 2 are disconnected, operational amplifier IC no-output, then triode T ends, the coil losing electricity of relay J, the contact of relay J disconnects operation.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100416493A CN100495619C (en) | 2006-01-11 | 2006-01-11 | Water Protection Relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100416493A CN100495619C (en) | 2006-01-11 | 2006-01-11 | Water Protection Relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101000841A CN101000841A (en) | 2007-07-18 |
| CN100495619C true CN100495619C (en) | 2009-06-03 |
Family
ID=38692758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100416493A Expired - Fee Related CN100495619C (en) | 2006-01-11 | 2006-01-11 | Water Protection Relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100495619C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208445503U (en) * | 2017-12-23 | 2019-01-29 | 天佑电器（苏州）有限公司 | Circuit for controlling motor and burnisher |
| CN112271688A (en) * | 2020-11-13 | 2021-01-26 | 杨晶 | Bullet train traction motor sensing signal cable pillar locking connector and traction motor sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0167257A1 (en) * | 1984-06-01 | 1986-01-08 | Honeywell Inc. | Boiler water level monitoring |
| CN2039875U (en) * | 1988-06-27 | 1989-06-21 | 陈正宇 | Conducting liquid level relay |
| CN2738381Y (en) * | 2004-10-21 | 2005-11-02 | 姚振民 | Liquid level relay |
-
2006
- 2006-01-11 CN CNB2006100416493A patent/CN100495619C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0167257A1 (en) * | 1984-06-01 | 1986-01-08 | Honeywell Inc. | Boiler water level monitoring |
| CN2039875U (en) * | 1988-06-27 | 1989-06-21 | 陈正宇 | Conducting liquid level relay |
| CN2738381Y (en) * | 2004-10-21 | 2005-11-02 | 姚振民 | Liquid level relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101000841A (en) | 2007-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100495619C (en) | Water Protection Relay | |
| CN105301056B (en) | Conductance type moisture percentage measuring apparatus | |
| CN208253014U (en) | A kind of explosion-proof flexible connection pipe | |
| CN203772443U (en) | Fabricated NTC temperature sensor used for household electric appliances | |
| CN203309437U (en) | Novel polytetrafluoroethylene expansion joint | |
| CN201690633U (en) | Spiral electric heating tube | |
| CN2807210Y (en) | Electromagnetic flowmeter | |
| CN102949967A (en) | Pinene pyrolysis device | |
| CN202836814U (en) | Dual-bush-temperature-measurement thermal resistor | |
| CN2833859Y (en) | Magnetic controlled water flow switch with hollow magnetic float | |
| CN201536084U (en) | Flow rate settable pressure-differential flow valve | |
| CN203606002U (en) | No-water alarming device of water storage tank of ozone cabinet | |
| CN115355620A (en) | Heat pump sleeve heat exchange system | |
| CN202648478U (en) | Anti-stretching tubular heat exchanger | |
| CN218442782U (en) | Heat pump sleeve heat exchange system | |
| CN207796388U (en) | A kind of hydraulic oil pipe of good heat dissipation effect | |
| CN109959430A (en) | A kind of tongue tube water level switch | |
| CN201168716Y (en) | T-shaped ball water separator | |
| CN200986322Y (en) | Flange connecting electromagnetic valve and blower pump water heater attemperator | |
| CN2563144Y (en) | Straight through electronic conduit line device | |
| CN203444959U (en) | Internally arranged online oil-filtering on-load tap changer | |
| CN220307415U (en) | Corrosion-resistant heating electric heating tube for water heater | |
| CN215446860U (en) | Silicon transistor electric heating device | |
| CN220137057U (en) | Sensor connecting piece | |
| CN2906457Y (en) | Anti-electric shock type instant electric water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20120111 |