CN102345473B - Mine intrinsic safety type automatic drainage and measurement and control protection device - Google Patents
Mine intrinsic safety type automatic drainage and measurement and control protection device Download PDFInfo
- Publication number
- CN102345473B CN102345473B CN 201010245203 CN201010245203A CN102345473B CN 102345473 B CN102345473 B CN 102345473B CN 201010245203 CN201010245203 CN 201010245203 CN 201010245203 A CN201010245203 A CN 201010245203A CN 102345473 B CN102345473 B CN 102345473B
- Authority
- CN
- China
- Prior art keywords
- circuit
- intrinsic safety
- safety type
- signal
- main 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.)
- Active
Links
Images
Abstract
The invention relates to a mine intrinsic safety type automatic drainage and measurement and control protection device. The device comprises a measurement and control protection mainboard, a man-machine interface and a switch power supply, wherein the measurement and control protection mainboard comprises a central processing unit (CPU) main control unit, a data acquisition circuit, an analog/digital (A/D) conversion circuit, an intrinsic safety type switch state monitoring circuit and a switch control circuit; the intrinsic safety type switch state monitoring circuit detects a state signal of a water pump switch and transmits the detected state signal to the CPU main control unit; and the data acquisition circuit comprises a current signal conditioning circuit, a voltage signal conditioning circuit and a leakage resistance detection circuit which are used for detecting a current signal, a voltage signal and a leakage signal of a water pump respectively, and an intrinsic safety type water level detection circuit. Coal mine underground automatic drainage and coal mine power grid microcomputer protection are combined, and multiple functions of water level measurement, electric quantity measurement, automatic water pump starting and stopping control, water pump motor protection, display, communication, event recording and the like are integrated, so that an intelligent terminal device for a coal mine underground automatic drainage and coal mine power grid integrated automation system is formed.
Description
Technical field
The present invention relates to the automatic draining of mine intrinsic safety type and measuring and controlling protective device; belong to test technique automatic field and down-hole power system microcomputer resist technology field under the coal mine, can be used for controlling automatically and the monitoring and protection system with the water pump of high fiery colliery down-hole under the general coal mine.
Background technology
At present, the most collieries of China drainage underground is to realize that by control manually manually-operated drainage system not only labour intensity is big, start-stop time is long, and efficient is low, and because automaticity is low, people's participation is more, is difficult to realize real-time monitoring, start and stop in time.Because operating procedure is many, the people is not suitable for modern mine management for maloperation hidden danger is big.Present stage also is the difficult problem that the colliery automatic field is badly in need of solution to water level detecting under the coal mine and draining control technology prematurity still automatically in real time.The independent research of minority coal mining enterprise some automatic drain systems, but have many weak points, not high as the water level detecting precision, adopt PLD PLC to make the draining cost higher as the control core, need to use special-purpose switch board; Automatic drain system and pump switch partial installation, function singleness makes complex system, and these all are not easy to the unified integrated management of colliery electric network synthetic automated system.
The degree of colliery automation depends on underground power supply system simultaneously, and therefore the protection to underground low-tension network, low voltage equipment seems particularly important.The technical development of power system Microcomputer Protection so far, and is comparatively ripe, and antijamming capability is strong, response is sensitive, quick action, and protective value is much better than traditional analog electromagnetism relay protection.Therefore the Microcomputer Protection technology is introduced underground power supply system, improve the reliability of protective device, reduce the protective device maintenance workload, guarantee underground power supply used safety, for the colliery automation provides strong guarantee.
Be the patent of invention of CN200710185265.3 as China Patent No., open day is on April 9th, 2008, a kind of mine explosion-suppression and intrinsic safety type digitlization automatic drain system is disclosed, belong to test technique automatic field under the coal mine, purpose be to disclose a kind of can be accurate, safety, water bunker level and the real-time technical scheme that starts the explosion-proof intrinsically safe digital automatic control system of drainage system under the reliable detection coal mine, it is characterized in that this system is by intrinsic safety type digital water level sensor I, Flameproof and intrinsically safe control loop II and intrinsic safety electric source circuit I II three parts are formed, it is a cover digitlization, intelligent monitoring system, have real-time collection and storage water level signal, monitoring pump motor duty, the sump flow, and control the start-stop of motor in real time, realize that data show, limit and report to the police and function such as host computer serial communication.And according to colliery industrial security type design, the explosion-proof Exdib that is masked as can be widely used in automatic monitoring and the automation drainage system of the shaft sump water level of general mine and highly gassy mine.This device starts, stops outside explosion-proof switch according to water level, and function is more single; Namely this device only realizes that water level detecting, water level show, the output of control node; but outside functions such as pump motor control, switch protection and control do not relate to; fail to realize repertoire, need be used in combination with other equipment, certainly will cause system complex, security reliability to reduce.
Summary of the invention
Technical problem to be solved by this invention is to solve the difficult problem in above-mentioned traditional water discharge technology; overcome the shortcoming of prior art with not enough; the automatic draining of a kind of mine intrinsic safety type and measuring and controlling protective device are disclosed; automatic draining under the coal mine is combined with colliery electrical network Microcomputer Protection; integrate and measure water level, measure multiple functions such as electric weight, automatically controlled water pump start and stop, pump motor protection, demonstration, communication, logout, make it to be configured under the coal mine intelligent end device of draining automatically and colliery electric network synthetic automated system.
According to the automatic draining of a kind of mine intrinsic safety type provided by the invention and measuring and controlling protective device, comprise the monitoring and protection mainboard, the man-machine interface and the Switching Power Supply that are connected with described monitoring and protection mainboard, described monitoring and protection mainboard and Switching Power Supply are installed in the same explosion-resistant enclosure, described monitoring and protection mainboard comprises the CPU main control unit, data acquisition circuit, the A/D change-over circuit, intrinsic safety type on off state observation circuit and ON-OFF control circuit, described intrinsic safety type on off state testing circuit is suitable for being connected with outside pump switch, detect the status signal of pump switch, detected status signal transfers to described CPU main control unit, described data acquisition circuit comprises the current signal modulate circuit, the voltage signal modulate circuit, leak resistance testing circuit and intrinsic safety type water level detection circuit, described current signal modulate circuit, the voltage signal modulate circuit, the leak resistance testing circuit is connected with the water pump of outside, detect the current signal of water pump respectively, voltage signal and electric leakage signal, detected current signal, voltage signal and electric leakage signal transfer to described CPU main control unit after described A/D change-over circuit is changed; Described intrinsic safety type water level detection circuit is suitable for being connected with the level sensor of outside, the sensed water level signal, detected water level signal transfers to described CPU main control unit, described ON-OFF control circuit is suitable for being connected with outside pump switch, described CPU main control unit produces the water pump control signal according to detected current signal, voltage signal, electric leakage signal and water level signal, the water pump control signal transfers to pump switch through described ON-OFF control circuit, controls outside pump working.
Also have following attached technical characterictic according to the automatic draining of a kind of mine intrinsic safety type provided by the invention and detection protective device:
Described monitoring and protection mainboard also comprises the communication interface circuit that is connected with described CPU main control unit respectively; watchdog circuit; the JTAG chip test circuit; real-time calendar clock circuit; LCD drive circuit and intrinsic safety type key press detecting circuit; described CPU main control unit communicates by described communication interface circuit and host computer; described CPU main control unit is resetted by described watchdog circuit; described CPU main control unit is tested respectively each parts by the JTAG chip test circuit, and described LCD drive circuit also is connected with described man-machine interface with described intrinsic safety type key press detecting circuit.
Described man-machine interface comprises button, LCD display and LED light, and described LCD display is connected with described LCD drive circuit, and described button is connected with described intrinsic safety type key press detecting circuit.
Described intrinsic safety type water level detection circuit is made up of intrinsic safety electric source treatment circuit, analog switch, signal generating circuit, signal acquisition circuit, filter circuit and optocoupler, described CPU main control unit output data signal is through the dedicated tunnel of the described analog switch of described light-coupled isolation backgating, send signal by described signal generating circuit to level sensor, gathered the output voltage of level sensor again by described signal acquisition circuit, through described filter circuit filtering high-frequency signal, by described light-coupled isolation, the output data signal is to described CPU main control unit at last.
Each circuit module on the described monitoring and protection mainboard is arranged on the same printed circuit board.
What described communication interface circuit adopted is the RS485 communication interface.
Described intrinsic safety type on off state observation circuit and intrinsic safety type key press detecting circuit are powered by described Switching Power Supply.
Described LED light comprises power supply indicator, malfunction indicator lamp, transmission indicator lamp and codan lamp.
Described button comprises selection, selects, confirms, resets, starts down and stops six press keys.
Be distributed with Switching Power Supply inlet wire, switch control input-output line, level sensor inlet wire, current/voltage inlet wire and described order wire around the described monitoring and protection mainboard.
Technique effect according to the automatic draining of a kind of mine intrinsic safety type provided by the invention and measuring and controlling protective device is: protective device of the present invention is that a collection is measured; protection; control; show; communication etc. are multi-functional in the one terminal device; the automatic draining in Qi Ji down-hole and motor Microcomputer Protection are in one; can gather water level information in real time; monitoring pump motor duty; the start and stop of automatically controlled water pump; the protection of realization earth leakage search/lockout; short-circuit protection; overload protection; cross/under-voltage protection and open-phase protection; the realization data show and communicate by letter with host computer; measure accurately; safe and reliable; be installed in the explosion-resistant enclosure with the water pump gauge tap; and according to colliery industrial security type design, be specially adapted under the general coal mine and automatic draining and the electric network protection system thereof of high fiery colliery down-hole.
Description of drawings
The automatic draining of Fig. 1 mine intrinsic safety type and measuring and controlling protective device structured flowchart
The automatic draining of Fig. 2 mine intrinsic safety type and measuring and controlling protective device shape assumption diagram
Fig. 3 monitoring and protection mainboard theory diagram
Fig. 4 intrinsic safety type water level detection circuit theory diagram
Fig. 5 constructing communication network system connection layout
The member name of each figure number is called among the figure:
I-monitoring and protection mainboard II-man-machine interface III-Switching Power Supply
1, current signal modulate circuit 2, voltage signal modulate circuit
3, leak resistance testing circuit 4, intrinsic safety type water level detection circuit
5, A/D change-over circuit 6, intrinsic safety type on off state observation circuit
7, ON-OFF control circuit 8, CPU main control unit
9, real-time calendar clock circuit 10, JTAG chip test circuit
11, watchdog circuit 12, communication interface circuit
13, LCD drive circuit 14, intrinsic safety type key press detecting circuit
15, intrinsic safety electric source treatment circuit 16, analog switch
17, signal generating circuit 18, signal acquisition circuit
19, filter circuit 20, optocoupler
21, button 22, LCD display
23, LED light 24, Switching Power Supply inlet wire
25, switch control input-output line 26, level sensor inlet wire
27, current/voltage inlet wire 28, RS485 order wire
The specific embodiment
Referring to Fig. 1 and Fig. 3; embodiment according to the automatic draining of a kind of mine intrinsic safety type provided by the invention and measuring and controlling protective device; comprise monitoring and protection mainboard I, the man-machine interface II and the Switching Power Supply III that are connected with described monitoring and protection mainboard I; described monitoring and protection mainboard I and Switching Power Supply III are installed in the same explosion-resistant enclosure, and described monitoring and protection mainboard I is the core of the automatic draining of mine intrinsic safety type and measuring and controlling protective device.Described monitoring and protection mainboard I comprises CPU main control unit 8; data acquisition circuit; A/D change-over circuit 5; intrinsic safety type on off state observation circuit 6 and ON-OFF control circuit 7; described intrinsic safety type on off state testing circuit 6 is suitable for being connected with outside pump switch; detect the status signal of pump switch; detected status signal transfers to described CPU main control unit 8; described data acquisition circuit comprises current signal modulate circuit 1; voltage signal modulate circuit 2; leak resistance testing circuit 3 and intrinsic safety type water level detection circuit 4; described current signal modulate circuit 1 is input as the secondary side phase current, and voltage signal modulate circuit 2 is input as secondary side line voltage and rated value is AC36V.Described current signal modulate circuit 1, voltage signal modulate circuit 2, leak resistance testing circuit 3 are connected with the water pump of outside, detect current signal, voltage signal and the electric leakage signal of water pump respectively, detected current signal, voltage signal and electric leakage signal transfer to described CPU main control unit 8 after described A/D change-over circuit 5 is changed; Described intrinsic safety type water level detection circuit 4 is suitable for being connected with the level sensor of outside, the sensed water level signal, detected water level signal transfers to described CPU main control unit 8, described ON-OFF control circuit 7 is suitable for being connected with outside pump switch, described CPU main control unit 8 produces the water pump control signal according to detected current signal, voltage signal, electric leakage signal and water level signal, the water pump control signal transfers to pump switch through described ON-OFF control circuit 7, controls outside pump working.Described Switching Power Supply III is input as AC100V voltage, is output as DC ± 12V, and the DC5V supply voltage is in the monitoring and protection mainboard is installed in the switch explosion-resistant enclosure.The present invention is connected with switch with ON-OFF control circuit 7 by intrinsic safety type on off state observation circuit 6, gathers current/voltage, on off state from switch, and to switch output controlled quentity controlled variable.Realization is to detection and the control of switch.The present invention with water level detecting, water level show, water pump control, pump motor protection all combines with measuring control, correspondence with foreign country, explosion-proof switch integral body etc., the function of realization more comprehensively, intelligent degree is higher, has simplified system complexity.
Referring to Fig. 1 and Fig. 3; in above-described embodiment that the present invention provides; described monitoring and protection mainboard also comprises the communication interface circuit 12 that is connected with described CPU main control unit respectively; watchdog circuit 11; JTAG chip test circuit 10; real-time calendar clock circuit 9; LCD drive circuit 13 and intrinsic safety type key press detecting circuit 14; described CPU main control unit communicates with host computer by described communication interface circuit 12; described CPU main control unit is resetted by described watchdog circuit 11; described CPU main control unit is tested respectively each parts by the JTAG chip test circuit, and described LCD drive circuit 13 also is connected with described man-machine interface with described intrinsic safety type key press detecting circuit 14.
Referring to Fig. 2 and Fig. 3, in above-described embodiment that the present invention provides, described man-machine interface II comprises button 21, LCD display 22 and LED light 23, and described LCD display 22 is connected with described LCD drive circuit 13, and described button 21 is connected with described intrinsic safety type key press detecting circuit 14.Described LCD display 22 is high speed parallel interface, is connected with the outer extension memory parallel interface of CPU by LCD drive circuit 13, draws row's pin by the monitoring and protection mainboard and is installed on the explosion-proof casing.
Referring to Fig. 1 to Fig. 3, in above-described embodiment that the present invention provides, direct and the A/D change-over circuit 5 of described CPU main control unit, intrinsic safety type on off state observation circuit 6, ON-OFF control circuit 7, communication interface circuit 12, watchdog circuit 11, JTAG chip test circuit 10, real-time calendar clock circuit 9, LCD drive circuit 13, intrinsic safety type key press detecting circuit 14 connects, by current signal modulate circuit 1, voltage signal modulate circuit 2, leak resistance testing circuit 3 and water level signal testing circuit 4 are gathered the voltage of water pump, electric current and water level information, monitoring pump motor duty, the information of gathering is stored in the CPU internal RAM, show by LCD display 22, communicate by letter with host computer by communication interface circuit 12, some significant datas such as setting parameter etc. are kept in the inner EEPROM of CPU, can make amendment to systematic parameter by button 21.When pump motor is in stopped status and detect water level above the setting high water level, output relay Signal-controlled switch starter motor; Be lower than the setting low water stage when pump motor is in starting state and detects water level, the output relay Signal-controlled switch stops motor.Simultaneously; when being in halted state, motor starts the earth leakage search/lockout protection; when being in starting state, motor starts short-circuit protection, overload protection, mistake/under-voltage protection, open-phase protection, in case the output trip signal and realized resetting manually or automatically by watchdog circuit 11 of breaking down in the compulsory exercise time.Described real-time calendar clock circuit 9 provides date and time information.
Referring to Fig. 4, in above-described embodiment that the present invention provides, described intrinsic safety type water level detection circuit 4 is by intrinsic safety electric source treatment circuit 15, analog switch 16, signal generating circuit 17, signal acquisition circuit 18, filter circuit 19 and optocoupler 20 are formed, described CPU main control unit 8 output data signals are isolated the dedicated tunnel of the described analog switch 16 of backgating through described optocoupler 20, send signal by described signal generating circuit 17 to level sensor, gathered the output voltage of level sensor again by described signal acquisition circuit 18, through described filter circuit 19 filtering high-frequency signals, isolated by described optocoupler 20 at last, the output data signal is to described CPU main control unit 8.
Referring to Fig. 3, in above-described embodiment that the present invention provides, each circuit module on the described monitoring and protection mainboard is arranged on the same printed circuit board.Described monitoring and protection mainboard integrates water level detecting, water pump control, pump motor monitoring and protection function, and the function that makes the present invention have is more comprehensive, need not to arrange other appurtenances.
Referring to Fig. 3, in above-described embodiment that the present invention provides, what described communication interface circuit 12 adopted is the RS485 communication interface.Adopt the RS485 communication interface can be better and host computer communicate, with the transferring in the host computer promptly and accurately of the data among the present invention, host computer also can better be realized Long-distance Control to the present invention.
Referring to Fig. 4, in above-described embodiment that the present invention provides, described intrinsic safety type on off state observation circuit 6 and intrinsic safety type key press detecting circuit 14 are powered by described Switching Power Supply III.The power supply of described Switching Power Supply III offers described intrinsic safety type on off state observation circuit 6 and intrinsic safety type key press detecting circuit 14 after intrinsic safety electric source treatment circuit 15 is handled.The present invention can realize centrally connected power supply, and all parts are installed concentratedly in explosion-proof casing, has improved safety.
Referring to Fig. 2, in above-described embodiment that the present invention provides, described LED light 23 comprises power supply indicator, malfunction indicator lamp, transmission indicator lamp and codan lamp.Above-mentioned indicator lamp reveals to be put on explosion-proof casing, can clearly demonstrate duty.
Referring to Fig. 2, in above-described embodiment that the present invention provides, described button 21 comprises selection, selects, confirms, resets, starts down and stops six press keys.Be used for modification system setting parameter, check operation information, check logout, manually boot/stop water pump etc.
Referring to Fig. 2, in above-described embodiment that the present invention provides, be distributed with Switching Power Supply inlet wire 24, switch control input-output line 25, level sensor inlet wire 26, current/voltage inlet wire 27 and described order wire 28 around the described monitoring and protection mainboard I.Above-mentioned cable passes explosion-proof casing and is connected with outside each parts.
The automatic draining of mine intrinsic safety type of the present invention and measuring and controlling protective device can be used as the intelligent end device of colliery electric network synthetic automated system; the RS485 communication interface of standard is provided; make things convenient for the group net operation of various device under the coal mine; constructing communication network system connection layout as shown in Figure 5; can dispatch by the remote monitoring main frame is unified after utilizing the networking of this device; realize the globalize intelligence draining of drainage system under the coal mine, also can move with the other-end equipment network.
Claims (9)
1. the automatic draining of mine intrinsic safety type and measuring and controlling protective device, comprise monitoring and protection mainboard (I), the man-machine interface (II) that is connected with described monitoring and protection mainboard (I) and Switching Power Supply (III), it is characterized in that: described monitoring and protection mainboard (I) and Switching Power Supply (III) are installed in the same explosion-resistant enclosure, described monitoring and protection mainboard (I) comprises CPU main control unit (8), data acquisition circuit, A/D change-over circuit (5), intrinsic safety type on off state observation circuit (6) and ON-OFF control circuit (7), described intrinsic safety type on off state testing circuit (6) is suitable for being connected with outside pump switch, detect the status signal of pump switch, detected status signal transfers to described CPU main control unit (8), described data acquisition circuit comprises current signal modulate circuit (1), voltage signal modulate circuit (2), leak resistance testing circuit (3) and intrinsic safety type water level detection circuit (4), described current signal modulate circuit (1), voltage signal modulate circuit (2), leak resistance testing circuit (3) is connected with the water pump of outside, detect the current signal of water pump respectively, voltage signal and electric leakage signal, detected current signal, voltage signal and electric leakage signal transfer to described CPU main control unit (8) after described A/D change-over circuit (5) is changed; Described intrinsic safety type water level detection circuit (4) is suitable for being connected with the level sensor of outside; the sensed water level signal; detected water level signal transfers to described CPU main control unit (8); described ON-OFF control circuit (7) is suitable for being connected with outside pump switch; described CPU main control unit (8) is according to detected current signal; voltage signal; electric leakage signal and water level signal produce the water pump control signal; the water pump control signal transfers to pump switch through described ON-OFF control circuit (7); control outside pump working; described monitoring and protection mainboard also comprises the communication interface circuit (12) that is connected with described CPU main control unit respectively; watchdog circuit (11); JTAG chip test circuit (10); real-time calendar clock circuit (9); LCD drive circuit (13) and intrinsic safety type key press detecting circuit (14); described CPU main control unit communicates by described communication interface circuit (12) and host computer; described CPU main control unit is resetted by described watchdog circuit (11); described CPU main control unit is tested respectively each parts by the JTAG chip test circuit, and described LCD drive circuit (13) also is connected with described man-machine interface with described intrinsic safety type key press detecting circuit (14).
2. the automatic draining of a kind of mine intrinsic safety type as claimed in claim 1 and measuring and controlling protective device; it is characterized in that: described man-machine interface II comprises button (21), LCD display (22) and LED light (23); described LCD display (22) is connected with described LCD drive circuit (13), and described button (21) is connected with described intrinsic safety type key press detecting circuit (14).
3. the automatic draining of a kind of mine intrinsic safety type as claimed in claim 1 and measuring and controlling protective device; it is characterized in that: described intrinsic safety type water level detection circuit (4) is by intrinsic safety electric source treatment circuit (15); analog switch (16); signal generating circuit (17); signal acquisition circuit (18); filter circuit (19) and optocoupler (20) are formed; described CPU main control unit (8) output data signal is isolated the dedicated tunnel of the described analog switch of backgating (16) through described optocoupler (20); send signal by described signal generating circuit (17) to level sensor; gathered the output voltage of level sensor again by described signal acquisition circuit (18); through described filter circuit (19) filtering high-frequency signal; isolated by described optocoupler (20) at last, the output data signal is to described CPU main control unit (8).
4. the automatic draining of a kind of mine intrinsic safety type as claimed in claim 1 and measuring and controlling protective device, it is characterized in that: each circuit module on the described monitoring and protection mainboard is arranged on the same printed circuit board.
5. the automatic draining of a kind of mine intrinsic safety type as claimed in claim 1 and measuring and controlling protective device is characterized in that: what described communication interface circuit (12) adopted is the RS485 communication interface.
6. the automatic draining of a kind of mine intrinsic safety type as claimed in claim 2 and measuring and controlling protective device, it is characterized in that: described intrinsic safety type on off state observation circuit (6) and intrinsic safety type key press detecting circuit (14) are powered by described Switching Power Supply.
7. the automatic draining of a kind of mine intrinsic safety type as claimed in claim 2 and measuring and controlling protective device, it is characterized in that: described LED light (23) comprises power supply indicator, malfunction indicator lamp, transmission indicator lamp and codan lamp.
8. the automatic draining of a kind of mine intrinsic safety type as claimed in claim 2 and measuring and controlling protective device is characterized in that: described button (21) comprises selection, selects, confirms, resets, starts down and stops six press keys.
9. the automatic draining of a kind of mine intrinsic safety type as claimed in claim 1 and measuring and controlling protective device is characterized in that: be distributed with Switching Power Supply inlet wire (24), switch control input-output line (25), level sensor inlet wire (26), current/voltage inlet wire (27) and described order wire (28) around the described monitoring and protection mainboard I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010245203 CN102345473B (en) | 2010-07-30 | 2010-07-30 | Mine intrinsic safety type automatic drainage and measurement and control protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010245203 CN102345473B (en) | 2010-07-30 | 2010-07-30 | Mine intrinsic safety type automatic drainage and measurement and control protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102345473A CN102345473A (en) | 2012-02-08 |
| CN102345473B true CN102345473B (en) | 2013-08-21 |
Family
ID=45544507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010245203 Active CN102345473B (en) | 2010-07-30 | 2010-07-30 | Mine intrinsic safety type automatic drainage and measurement and control protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102345473B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735905A (en) * | 2012-06-25 | 2012-10-17 | 三一重型装备有限公司 | Intrinsically safe isolation electric leakage detection device and excavation equipment |
| CN103031886A (en) * | 2012-12-11 | 2013-04-10 | 华北电力大学（保定） | Dispatching-automation water draining system of transformer substation deep well |
| CN105005329B (en) * | 2015-07-28 | 2017-11-10 | 太原理工大学 | A kind of mining automatic drainage device using carrier wave |
| CN105527900A (en) * | 2015-12-29 | 2016-04-27 | 常熟市亨达电子器材厂 | Mine deslagging and drainage host |
| CN107966919A (en) * | 2016-10-19 | 2018-04-27 | 姬志刚 | A kind of mineral electrical apparatus protective device |
| CN109799383B (en) * | 2019-03-26 | 2024-02-09 | 云南大学 | Prevent electric fish early warning device based on thing networking |
| CN110783899B (en) * | 2019-10-14 | 2022-04-01 | 广东电网有限责任公司广州供电局 | Passive protection device and monitoring module and monitoring method thereof |
| CN111864903A (en) * | 2020-07-06 | 2020-10-30 | 山东东山新驿煤矿有限公司 | Multipurpose building block type network digital mining intelligent switch device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1298406A1 (en) * | 1985-06-07 | 1987-03-23 | Днепропетровский горный институт им.Артема | Arrangement for automatic partitioning of mine workings |
| CN101008317A (en) * | 2006-01-27 | 2007-08-01 | 李维熙 | Coal mine safety disaster-resistant type automatic main drainage system |
| CN101158288A (en) * | 2007-11-15 | 2008-04-09 | 太原理工大学 | Flame-proof and safety type digitisation automatically drain system for mining |
| CH697611B1 (en) * | 2004-01-17 | 2008-12-15 | Marcel Christian Wegmueller | Process for conditioning Mountain Water in primary drainage systems of tunnels. |
| CN201259625Y (en) * | 2008-10-09 | 2009-06-17 | 河南省济源市矿用电器有限责任公司 | Explosion proof coal mine down-hole pump house automatic drainage controller for mining |
| CN201884062U (en) * | 2010-07-30 | 2011-06-29 | 八达电气有限公司 | Mine intrinsic safety type automatic dewatering and measurement and control protective device |
-
2010
- 2010-07-30 CN CN 201010245203 patent/CN102345473B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1298406A1 (en) * | 1985-06-07 | 1987-03-23 | Днепропетровский горный институт им.Артема | Arrangement for automatic partitioning of mine workings |
| CH697611B1 (en) * | 2004-01-17 | 2008-12-15 | Marcel Christian Wegmueller | Process for conditioning Mountain Water in primary drainage systems of tunnels. |
| CN101008317A (en) * | 2006-01-27 | 2007-08-01 | 李维熙 | Coal mine safety disaster-resistant type automatic main drainage system |
| CN101158288A (en) * | 2007-11-15 | 2008-04-09 | 太原理工大学 | Flame-proof and safety type digitisation automatically drain system for mining |
| CN201259625Y (en) * | 2008-10-09 | 2009-06-17 | 河南省济源市矿用电器有限责任公司 | Explosion proof coal mine down-hole pump house automatic drainage controller for mining |
| CN201884062U (en) * | 2010-07-30 | 2011-06-29 | 八达电气有限公司 | Mine intrinsic safety type automatic dewatering and measurement and control protective device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102345473A (en) | 2012-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102345473B (en) | Mine intrinsic safety type automatic drainage and measurement and control protection device | |
| CN201884062U (en) | Mine intrinsic safety type automatic dewatering and measurement and control protective device | |
| CN102801216B (en) | A kind of intelligent substation inspection system | |
| CN201532416U (en) | Intelligent cable monitor | |
| CN202886463U (en) | Intelligent electric energy meter with functions of electric leakage remote monitoring and protection | |
| CN202772673U (en) | Intelligent transformer substation inspection system | |
| CN201018284Y (en) | Economically intelligent synthetic power distribution unit | |
| CN103616648B (en) | Multi-cascade high pressure, high power battery group monitoring management device | |
| CN102411119B (en) | Intelligent monitoring device for temperature and insulation state of 330KV high-voltage cable in hydropower station | |
| CN104267291A (en) | Remote power monitoring system | |
| CN102332753A (en) | Intelligentized switch cabinet integrative monitoring system | |
| CN203241494U (en) | Direct current system AC series current fault and insulation fault monitoring line-selection apparatus | |
| CN206696666U (en) | The hydrological telemetering terminal with low power consumption positioned based on GPS and the Big Dipper | |
| CN104076789A (en) | Mine main drainage automatic control and remote monitoring system | |
| CN104269927B (en) | Remote power supervising device | |
| CN103700235B (en) | A kind of power information gathers fault detection system and remote channel detection method thereof | |
| CN101158288A (en) | Flame-proof and safety type digitisation automatically drain system for mining | |
| CN109975635B (en) | Methane electric locking function test method and system | |
| CN205805876U (en) | Double pump intelligent controlling device | |
| CN101895153A (en) | Intelligent transformer substation computer monitoring anti-misoperation system | |
| CN111077463A (en) | Balanced maintenance system for online monitoring of storage battery | |
| CN201017447Y (en) | GSM remote data transfer control device | |
| CN203224748U (en) | Environment monitoring data collector used for transformer station | |
| CN202424129U (en) | Motor monitoring protector | |
| CN204166081U (en) | Straight-flow system insulating ground warning device |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190404 Address after: 215331 No. 66 Lujiazhen Ring Railway, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Bada electric (Kunshan) Co. Ltd. Address before: 325604 No. 366 Liu Le Road, Sulu Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province Patentee before: Bada Electrical Appliance Co.,Ltd. |