CN204349427U - A kind of on-line monitoring device for low pressure submersible motor - Google Patents
A kind of on-line monitoring device for low pressure submersible motor Download PDFInfo
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- CN204349427U CN204349427U CN201520013919.4U CN201520013919U CN204349427U CN 204349427 U CN204349427 U CN 204349427U CN 201520013919 U CN201520013919 U CN 201520013919U CN 204349427 U CN204349427 U CN 204349427U
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Abstract
The utility model belongs to motor management and control applied technical field, specifically disclose a kind of on-line monitoring device for low pressure submersible motor, comprise single chip machine controlling circuit, 3 tunnel temperature input modules, zero-sequence current input module, static insulating resistance input module, 3 tunnel water inlet control pin input modules, liquid crystal display device module, input module, communication module, control output module, alarm output module and 1 road environment water level probe input module.The utility model has monitoring mode and monitoring pattern two kinds of patterns, meets user's monitoring or monitoring requirements; Wherein under monitoring pattern, liquid crystal display device module shows motor three road temperature value in real time, and carries out numeral setting to 3 temperature thresholds respectively by input module, and it is convenient to observe; In the monitoring mode, when device detects fault, buzzer warning, alarm relay KS exports, and control relay KJ controls to export.
Description
Technical field
The utility model belongs to motor management and control applied technical field, is specifically related to a kind of on-line monitoring device for low pressure submersible motor.
Background technology
Main and the pump of low pressure submersible electric motor combinationally uses, or by low pressure submersible electric motor axle stretch end directly load onto pump part form pump unify immersible pump, control when it uses to slip in mine water or rivers, lake, work in ocean water and in other occasion water, there is volume little, lightweight, prestart does not need diversion, not by the degree system of suction, do not need separately to establish pump house, easy to install, dependable performance, efficiency is higher, cheap, can the advantage such as investment reduction, be widely used in from down-hole or rivers, fetch water in lake, agricultural irrigation, urban water supply, industrial and mining enterprises' draining, urban and rural buildings draining, resident living water, city or plant effuent filth disposal etc.
Due in low pressure submersible electric motor work mine water or rivers, lake, in ocean water and in other occasion water, so in use need to adopt monitoring at low pressure submersible electric motor, the temperature rise of monitoring equipment monitoring motor in running, water inlet and insulation situation, to guarantee the normal operation of equipment, avoid because insulation fault can not solve the loss causing great economy and the person in time, and existing traditional purpose monitoring equipment, complex structure on the one hand, high and the not easily installation and maintenance of cost, the data message of institute's purpose monitoring is not accurate on the other hand, be unfavorable for management and control, causing trouble information feed back is delayed, bring irreversible loss.
Therefore, based on the problems referred to above, the utility model provides a kind of on-line monitoring monitoring device for low pressure submersible motor.
Utility model content
Utility model object: the purpose of this utility model is to provide a kind of on-line monitoring monitoring device for low pressure submersible motor; its structure is simple; for carrying out efficiently, accurately monitoring to low voltage motor temperature rise in running, water inlet and insulating properties, anti-interference low pressure immersible pump that is strong, that be suitable for AC220V, AC380V, AC660V uses as protector.
Technical scheme: a kind of on-line monitoring monitoring device for low pressure submersible motor, comprises Single-chip Controlling electricity
Road, 3 tunnel temperature input modules, zero-sequence current input module, static insulating resistance input module, 3 tunnel water inlet control pin input modules, liquid crystal display device module, input module, communication module, control output module, alarm output module and 1 road environment water level probe input module; Described 3 tunnel temperature input modules, zero-sequence current input module, static insulating resistance input module, 3 tunnel water inlet control pin input modules, liquid crystal display device module, input module, communication module, control output module, alarm output module are connected with single chip machine controlling circuit respectively with 1 road environment water level probe input module; Described input module is button; Described communication module is RS485 communication interface.
The technical program, the described on-line monitoring monitoring device for low voltage motor also comprises PC host computer, and described PC host computer is connected with single chip machine controlling circuit by RS485 communication interface.
The technical program, described liquid crystal display device module is highlighted wide temperature OLED Chinesizing liquid crystal display.
The technical program, described 3 tunnel temperature input modules adopt model to be the temperature sensor of Pt100.
The technical program, described 3 tunnel water inlet control pin input modules and 1 road environment water level probe input module adopt water electrode or switch.
The technical program, the power that described on-line monitoring monitoring device adopts is less than 10W, and supply voltage is AC195-255V.
Compared with prior art, a kind of on-line monitoring monitoring device beneficial effect for low pressure submersible motor of the utility model is: have monitoring mode and monitoring pattern two kinds of patterns, meets user's monitoring or monitoring requirements; Wherein in the monitoring mode, 1, liquid crystal display device module shows motor three road temperature value in real time, and respectively numeral setting is carried out to 3 temperature thresholds by input module, it is convenient to observe; 2, electric machine temperature rise is reported to the police: when motor winding temperature raises or bearing temperature raises, alarm output module carries out early warning (the buzzer sound), malfunction indicator lamp corresponding on liquid crystal display device module is bright, and shows its temperature, and relay K J, KS be normally closed/normally opened contact action; 3, motor entering water is reported to the police: when motor winding leak, the fault such as terminal box is leaked, grease chamber's humidity increases time, alarm output module carries out early warning (the buzzer sound), malfunction indicator lamp corresponding on liquid crystal display device module is bright, the action of relay K S normally opened contact; 4, the ultralow warning of environment water level: when motor external environment water level is lower than set point, alarm output module carries out early warning (the buzzer sound), and warning indication lamp corresponding on liquid crystal display device module is bright, and relay K J, KS be normally closed/normally opened contact action; 5, electrical machine insulation is reported to the police: liquid crystal display device module shows motor static insulating value in real time, before motor puts into operation, purpose monitoring device applies DC500V voltage to motor winding, automatic monitoring static insulating value, when insulation against ground is less than 0.5M Ω (this value can set according to electrical machine insulation class requirement), purpose monitoring device sends sound and light alarm, and relay K J, KS be normally closed/normally opened contact action; 6, zero-sequence current is reported to the police: zero-sequence current value when display motor runs in real time on liquid crystal display device module, after motor puts into operation, purpose monitoring device monitors zero-sequence current automatically, and (this value can set, be generally 2 times of normal zero-sequence current value), when motor internal humidity increases or water inlet, when insulation against ground drops to set point, and when entering the early stage of insulation damages transition, purpose monitoring device sends sound and light alarm, and relay K J, KS be normally closed/normally opened contact action; 7, this purpose monitoring device is reported to the police except inner sound, light, also comprises outer (dual early warning) taking alarm, when faults such as thermo-field thoery, environment water level lack of water, zero-sequence current are very big and insulation values is on the low side, except sound and light alarm, also carries out power-off protection to motor.Under monitoring pattern, purpose monitoring device only has monitoring function, and when namely purpose monitoring device detects fault, buzzer warning, alarm relay KS exports, and control relay KJ exports without control.This monitor and detection device has high reliability and fail safe, and effective guarantee carries out management and control to low pressure submersible motor operating state, ensures low pressure submersible motor safety, works efficiently, stop the generation of security incident.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of on-line monitoring monitoring device for low pressure submersible motor of the present utility model;
Fig. 2 is the terminals terminal schematic diagram of a kind of on-line monitoring monitoring device for low pressure submersible motor of the present utility model;
Fig. 3 is the terminals terminal definition schematic diagram of a kind of on-line monitoring monitoring device for low pressure submersible motor of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further.
A kind of on-line monitoring monitoring device for low pressure submersible motor as shown in Figure 1, comprise single chip machine controlling circuit, 3 tunnel temperature input modules, zero-sequence current input module, static insulating resistance input module, 3 tunnel water inlet control pin input modules, liquid crystal display device module, input module, communication module, control output module, alarm output module and 1 road environment water level probe input module; Described 3 tunnel temperature input modules, zero-sequence current input module, static insulating resistance input module, 3 tunnel water inlet control pin input modules, liquid crystal display device module, input module, communication module, control output module, alarm output module are connected with single chip machine controlling circuit respectively with 1 road environment water level probe input module; Described input module is button; Described communication module is RS485 communication interface.
Preferred further, on-line monitoring monitoring device for low voltage motor also comprises PC host computer, and described PC host computer is connected with single chip machine controlling circuit by RS485 communication interface, carries out networking communication, real-time monitoring submersible motor operation conditions, improves management and control efficiency; Liquid crystal display device module is highlighted wide temperature OLED liquid crystal display, the insulation over the ground of the temperature value in real time corresponding to display and static winding and zero-sequence current value, wear-resisting, corrosion-resistant, long service life; 3 tunnel temperature input modules adopt model to be the temperature sensor of Pt100, and have strong reactance voltage impact capacity, Applicable temperature scope is 0-200 DEG C; 3 tunnels water inlet control pin input modules and 1 road environment water level probe input module adopt water electrode or switch, stable and reliable for performance, safe ready, antijamming capability are strong, structure is simple, easy for installation, maintenance cost is low; The power that on-line monitoring monitoring device adopts is less than 10W, and supply voltage is AC195-255V, applied widely.
Wherein, the control mode of this purpose monitoring device relay, when 3 temperature are greater than set point, control relay KJ(is normally closed/often open) contact, alarm relay KS (often opening) contact action; When motor, terminal box water conduction resistance be less than 50K Ω, grease chamber's water conduction resistance be less than 30K Ω time, alarm relay KS (often opening) contact action, report to the police export; When the resistance of environment water level water conduction is greater than 60K Ω, control relay KJ(is normally closed/often open) contact, relay K S (often opening) contact action, report to the police and export; When zero-sequence current value superelevation is to preset value, control relay KJ(is normally closed/often open) contact, relay K S (often opening) contact action; When static insulating resistance is less than settings, control relay KJ(is normally closed/often open) contact, alarm relay KS (often opening) contact action.
Wherein, when the 3 tunnel temperature input modules (A, B, C tri-tunnel) of this monitor and detection device use as shown in Figures 2 and 3, threshold value setting range is 0-200 DEG C, Temperature displaying error is≤± 2 DEG C, maximumly deviant is set (deviant only corrects two-wire system temperature sensor, and three-wire system temperature sensor is without the need to correcting for negative 50 DEG C.When certain temperature spot not used time Qing Jianggai road temperature three binding post short-terms connect, now this road Temperature displaying value perseverance is 0 DEG C.As A road temperature need not, " 1,2,12 " three terminal shorting stubs can be coupled together.If A road temperature is two-wire system, this mode of connection is terminal " 1 " jointing temp line, and it is common port that terminal " 2,12 " connects), 3 tunnel water inlet control pin input modules, water conductive resistance between its grease chamber's electrode :≤30K Ω (can certainly set), water conductive resistance between motor winding and terminal box electrode :≤50K Ω (can from setting), between grease chamber's electrode, when water conductive resistance≤30K Ω or switch short circuit, protector is only reported to the police, not power-off protection, between motor winding and terminal box electrode, during water conductive resistance≤50K Ω switch short circuit, protector is only reported to the police, not power-off protection, 1 road environment water level probe input module, its water conductive resistance >60K Ω (can certainly set), when testing environment water level water conductive resistance >60K Ω or switch open circuit, monitor is reported to the police, and power-off protection (not used time will by 10,12 terminal short circuits), zero-sequence current input module, it effectively measures Standard resistance range: 00.0-10.0M Ω, when exceeding 10.0 M Ω, numeral method 99.9M Ω, resolving power: 0.1M Ω, elementary error: ± (2% reading+1 word), measuring voltage exports: DC500V(open circuit voltage), insulation resistance low alarm setting: 0.1-10.0 M Ω passes through keyboard to set up, low-resistance is reported to the police: display motor static insulating value in real time, before motor puts into operation, purpose monitoring device can monitor static insulating automatically, when insulation against ground is less than 0.5M Ω (this value can set according to electrical machine insulation class requirement), purpose monitoring device sends sound and light alarm, by relay K J normal-closed end access control loop, now motor should start, line voltage distribution: be applicable to AC220V, AC380V, AC660V, the contact capacity of control output module, alarm output module is respectively 5A/250VAC, 10A/28VDC, this monitor and detection device is by liquid crystal display displays temperature value, zero-sequence current value, static insulating resistance value, stationary state and Circulating fibrocytes state can be set to simultaneously, also manually can check the real-time temperature values of certain position, zero-sequence current value, insulating resistance value.
Following table is the information of this monitor and detection device by inputting set by input module keyboard,
This monitor and detection device is useful in temperature-40 to+60oC, and relative humidity is less than 95%RH and does not condense in draft chamber, and the environment of field of employment non smoke, coal gas, acidic and alkaline gas, volatile solvent and high dust content.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvement, these improvement also should be considered as protection range of the present utility model.
Claims (6)
1. the on-line monitoring device for low pressure submersible motor, it is characterized in that: comprise single chip machine controlling circuit, 3 tunnel temperature input modules, zero-sequence current input module, static insulating resistance input module, 3 tunnel water inlet control pin input modules, liquid crystal display device module, input module, communication module, control output module, alarm output module and 1 road environment water level probe input module; Described 3 tunnel temperature input modules, zero-sequence current input module, static insulating resistance input module, 3 tunnel water inlet control pin input modules, liquid crystal display device module, input module, communication module, control output module, alarm output module are connected with single chip machine controlling circuit respectively with 1 road environment water level probe input module; Described input module is button; Described communication module is RS485 communication interface.
2. a kind of on-line monitoring device for low pressure submersible motor according to claim 1, it is characterized in that: the described on-line monitoring device for low voltage motor also comprises PC host computer, described PC host computer is connected with single chip machine controlling circuit by RS485 communication interface.
3. a kind of on-line monitoring device for low pressure submersible motor according to claim 1, is characterized in that: described liquid crystal display device module is highlighted wide temperature OLED Chinesizing liquid crystal display.
4. a kind of on-line monitoring device for low pressure submersible motor according to claim 1, is characterized in that: described 3 tunnel temperature input modules adopt model to be the temperature sensor of Pt100.
5. a kind of on-line monitoring device for low pressure submersible motor according to claim 1, is characterized in that: described 3 tunnel water inlet control pin input modules and 1 road environment water level probe input module adopt water electrode or switch.
6. a kind of on-line monitoring device for low pressure submersible motor according to claim 1, is characterized in that: the power that described on-line monitoring device adopts is less than 10W, and supply voltage is AC195-255V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013919.4U CN204349427U (en) | 2015-01-09 | 2015-01-09 | A kind of on-line monitoring device for low pressure submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013919.4U CN204349427U (en) | 2015-01-09 | 2015-01-09 | A kind of on-line monitoring device for low pressure submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204349427U true CN204349427U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520013919.4U Expired - Fee Related CN204349427U (en) | 2015-01-09 | 2015-01-09 | A kind of on-line monitoring device for low pressure submersible motor |
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| CN (1) | CN204349427U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707165A (en) * | 2017-01-04 | 2017-05-24 | 合肥致臻电子科技有限公司 | Insulating comprehensive monitor for low-voltage motor winding |
| CN109659899A (en) * | 2018-11-16 | 2019-04-19 | 天水电气传动研究所有限责任公司 | It is a kind of for the offline and online Insulation monitoring of low voltage motor and guard method |
-
2015
- 2015-01-09 CN CN201520013919.4U patent/CN204349427U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707165A (en) * | 2017-01-04 | 2017-05-24 | 合肥致臻电子科技有限公司 | Insulating comprehensive monitor for low-voltage motor winding |
| CN106707165B (en) * | 2017-01-04 | 2023-11-21 | 合肥致臻电子科技有限公司 | Insulating integrated monitor of low-voltage motor winding |
| CN109659899A (en) * | 2018-11-16 | 2019-04-19 | 天水电气传动研究所有限责任公司 | It is a kind of for the offline and online Insulation monitoring of low voltage motor and guard method |
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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: 20150520 Termination date: 20170109 |