CN107939442B - A kind of redundancy-type coal mine return air lane drains automatic control system with pneumatic type - Google Patents
A kind of redundancy-type coal mine return air lane drains automatic control system with pneumatic type Download PDFInfo
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- CN107939442B CN107939442B CN201711075468.7A CN201711075468A CN107939442B CN 107939442 B CN107939442 B CN 107939442B CN 201711075468 A CN201711075468 A CN 201711075468A CN 107939442 B CN107939442 B CN 107939442B
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- 239000003245 coal Substances 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 127
- 238000007667 floating Methods 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000003044 adaptive effect Effects 0.000 claims description 23
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000002002 slurry Substances 0.000 abstract description 3
- 238000012279 drainage procedure Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000009131 signaling function Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0081—Special features systems, control, safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/03—Stopping, starting, unloading or idling control by means of valves
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
The present invention provides a kind of redundancy-type coal mine return air lane pneumatic type draining automatic control system, belong to pneumatic control field, whole system incudes height of water level using four floating balls, realize that pneumatic diaphragm pump is automatically turned on when water bunker level rises to the upper limit to be drained, pneumatic diaphragm pump is automatically closed when dropping to lower limit and stops draining, the function of whistle alarm when water level transfinites, two high-order floating balls can realize the Redundant Control opened to pneumatic diaphragm pump, two low water floats can be directed to ponding show slurry, realize the Redundant Control closed to pneumatic diaphragm pump.The present invention not only have the advantages that it is unattended, without using power supply and fault alarm, also has the advantages that high reliability and without liquid filter, it can adapt to the various water quality and special operation condition condition of the dedicated air return lane of underground coal mine, additionally have and manually controls drain function, facilitate patrol officer to inspect and overhaul, is the renewal product of the dedicated air return lane drainage arrangement of existing coal mine.
Description
Technical field
The present invention relates to pneumatic control field, in particular to a kind of redundancy-type coal mine return air lane pneumatic type Auto-drainage controls
System processed.
Background technique
It is typically chosen in addition to projecting mine when the arrangement developing main entry of underground and is tunneled along coal seam, it is contemplated that transport convenient and safe,
General air return lane advance development, and air return lane is uneven along coal seam driving easily formation tunnel height, while because air return lane is pacified
Equipped with the pipelines such as Dustproof pipe and static pressure water pipe, pressure ventilation pipe, it may damage or push up, bottom plate due to static pressure water lines in use
The reasons such as leaching infiltration water form different degrees of seeping phenomenon at the low-lying place in return aircourse, return air route can be truncated when serious, cause
The major hidden dangers such as methane accumulation, this requires must drain in time the ponding of ponding point each in air return lane." safe coal rule
Journey " to define dedicated air return lane be that return air is exclusively used in mining roadway, the tunnel that must not be used for haul, install electrical equipment.?
Coal and gas prominent area, must not also pedestrian in dedicated air return lane.Therefore artificial drainage should not be used in dedicated air return lane, it is necessary to adopt
With self-draining arrangement, but also electrical equipment cannot be used, this just gives the drainage works of dedicated air return lane to increase very disaster
Degree.
A kind of patent of invention " coal mine return air lane pneumatic type draining automatic control system of Institutes Of Technology Of Taiyuan Jin Baoquan professor
It is automatic that system " (Patent No. 201410241377.6) discloses a kind of unattended pneumatic type draining for coal mine return air lane
Control system, by pneumatic diaphragm pump, pneumatic supply, compressed air distributor, compressed air pressure reducing valve, air filter and system control
It makes part to form, whole system does not use power supply, is that one kind can be according to SEA LEVEL VARIATION realization water pump automatic start-stop control without electricity
Source gas dynamic formula drainage system can adapt to power free special operation condition condition in the dedicated air return lane of coal mine.Pneumatic type draining is certainly
Autocontrol system answers water level by normally starting ballottement, and realization floats rear Auto-drainage, stops draining by hydraulic control pneumatic operated valve sense
It should realize, after ponding drains, the uncontrolled shutdown of hydraulic control pneumatic operated valve, to stop draining；In addition, the automatic control of pneumatic type draining
System processed is additionally provided with spare floating ball and alarm floating ball, solves reliability existing for existing pneumatic draining automatic control system not
Height, implementation result is poor, cannot achieve the problem of fault alarm.But the device is found in underground coal mine actual application still
It has the following deficiencies: since underground coal mine water quality environment is poor, ponding is usually together with coal slime, dust muddiness, using hydraulic control
Pneumatic operated valve easily causes blocking, causes the drainage system that cannot reliably open or close, it is therefore necessary to install liquid filter etc.
Device, and the presence of liquid filter not only increases equipment cost, and needs the frequent treatment liquid filter interior of worker
Spot, in a disguised form increase manual inspection dynamics.
Summary of the invention
The present invention provides a kind of redundancy-type coal mine return air lane pneumatic type draining automatic control system, and its object is to solve
Hydraulic control is pneumatic in patent of invention " a kind of coal mine return air lane pneumatic type draining automatic control system (ZL201410241377.6) "
Valve be easy to cause the defect for blocking and influencing system working performance under the conditions of water turbidity, open a kind of pneumatic without using hydraulic control
Valve incudes height of water level using four low level, secondary low level, a high position, High High Level floating balls, realizes drainage system automatic start-stop and surpasses
The non-transformer redundancy-type coal mine return air lane for limiting alarm drains automatic control system with pneumatic type.
The present invention provides a kind of redundancy-type coal mine return air lane pneumatic type draining automatic control system, is a kind of according to water level
The non-transformer pneumatic type drainage system of water pump automatic start-stop control, including pneumatic diaphragm pump, pressure reducing valve, air filtration are realized in variation
Device, pneumatic source, air distributor and systems control division point, systems control division point include No. I two-position three way pneumatic operated valve, No. II two
Threeway pneumatic operated valve, No. I bi-bit bi-pass pneumatic operated valve, No. II bi-bit bi-pass pneumatic operated valve or gate shuttle valve, alarm hooter, No. III two
Two-way pneumatic operated valve, hand-adaptive switched switch valve, low water float switch valve, secondary low water float switch valve, surpass fault alarm switch valve
High-order float switch valve, high-order float switch valve, No. I throttle valve and No. II throttle valve；No. I two-position three way pneumatic operated valve air inlet
Mouthful be connected through gas piping with the first gas outlet of air distributor, No. I two-position three way pneumatic operated valve air control port through gas piping with it is low
Position float switch valve port be connected, No. I the first gas outlet of two-position three way pneumatic operated valve through gas piping respectively with No. II two-position three way
Pneumatic operated valve air control port, No. I bi-bit bi-pass pneumatic operated valve air inlet, high-order float switch valve air inlet are connected；Described No. II two three
Logical pneumatic operated valve air inlet is connected through gas piping with No. I the second gas outlet of two-position three way pneumatic operated valve, No. II two-position three way pneumatic operated valve
Port through gas piping with or the second air inlet of gate shuttle valve be connected, No. II pneumatic valve air gate of two-position three way directly with the external world sky
Gas connection；No. I bi-bit bi-pass pneumatic operated valve air control port through gas piping respectively with High High Level float switch valve air gate, No. II
Bi-bit bi-pass pneumatic operated valve air control port, fault alarm switch valve air inlet are connected, and No. I pneumatic valve air gate of bi-bit bi-pass is directly and outside
Boundary's air communication；No. II bi-bit bi-pass pneumatic operated valve air inlet is connected through gas piping with the 4th gas outlet of air distributor,
No. II pneumatic valve air gate of bi-bit bi-pass is connected through gas piping with alarm hooter；Described or the first air inlet of gate shuttle valve is through gas
Body pipeline is connected with adaptive switched the second port of switch valve of hand-or gate shuttle valve gas outlet is through gas piping and No. III bi-bit bi-pass
Pneumatic operated valve air control port is connected；No. III bi-bit bi-pass pneumatic operated valve air inlet is connected through gas piping with pneumatic source, and No. III two
The pneumatic valve air gate of two-way is connected through gas piping with pneumatic diaphragm pump steam inlet；The adaptive switched switch valve air inlet warp of hand-
Gas piping is connected with pressure reducing valve, and adaptive switched the first port of switch valve of hand-is connected through gas piping with air distributor air inlet,
Adaptive switched the first gas outlet of switch valve of hand-and the second gas outlet are directly connected to outside air；The fault alarm switch valve goes out
Port is directly connected to outside air；The 10 air inlet P10 of low water float switch valve is opened through gas piping and time low water float
11 port A11 of valve is closed to be connected；The secondary low water float switch valve air inlet is through gas piping and air distributor third gas outlet
It is connected,；The High High Level float switch valve air inlet is connected through gas piping with the second gas outlet of air distributor；The high position
Float switch valve air gate is directly connected to outside air；The pneumatic diaphragm pump exhaust inlet A0 is connectionless, for being vented, pneumatically
Diaphragm pump water inlet is connected through liquid line with sump, and pneumatic diaphragm pump water outlet is connect to arrange sump internal water accumulation with outlet pipe
Out；No. I throttle valve is connected with low water float switch valve air gate, and No. I throttle valve is for limiting low water float switch valve
Exhaust velocity；No. II throttle valve is connected with the secondary low water float switch valve air gate, and No. II throttle valve is secondary for limiting
The exhaust velocity of low water float switch valve.
Further, a kind of redundancy-type coal mine return air lane with pneumatic type drain automatic control system, further include with it is described low
Low water float that position float switch valve connects, the secondary low water float to connect with the secondary low water float switch valve, and the high position
The high-order floating ball that float switch valve connects and the High High Level floating ball to connect with the High High Level float switch valve.
A kind of redundancy-type coal mine return air lane provided by the invention drains automatic control system and patent of invention " one with pneumatic type
Kind coal mine return air lane drains automatic control system (ZL201410241377.6) with pneumatic type " it compares, the advantage is that:
(1) drainage system is easy to operate, does not need the devices such as liquid filter, is applicable to various water quality, cost
It is low, high reliablity.
(2) drainage system not only can also manually control draining with Auto-drainage, and patrol officer is facilitated to inspect and examine
It repairs, flexible operation.
(3) using the redundancy structure of four induction floating balls, high-order floating ball and High High Level floating ball can be realized to pneumatic the system
The Redundant Control that diaphragm pump is opened, low water float and time low water float can be directed to ponding show slurry, realize to pneumatic diaphragm pump
The Redundant Control of closing, to ensure system reliably working.
Detailed description of the invention
The redundancy-type coal mine return air lane Fig. 1 drains automatic control system schematic diagram of gas circuit with pneumatic type
1: No. I two-position three way pneumatic operated valve 3: I bi-bit bi-pass pneumatic operated valve 4: No. II two of two-position three way pneumatic operated valve 2: II
Position two-way pneumatic operated valve 5: or gate shuttle valve 6: 7: No. III bi-bit bi-pass pneumatic operated valves 8 of alarm hooter: the adaptive switched switch valve of hand-
9: fault alarm switch valve 10: low water float switch valve 11: secondary low water float switch valve 12: High High Level float switch valve
13: high-order float switch valve 14: pneumatic diaphragm pump 15: sump 16: pressure reducing valve 17: air filter 18: pneumatic source 19:
The throttle valve 22 of throttle valve 21: II of air distributor 20: I: outlet pipe
1 first gas outlet of A1: No. I two-position three way pneumatic operated valve of P1: No. I 1 air inlet of two-position three way pneumatic operated valve
B1: No. I 1 second gas outlet of two-position three way pneumatic operated valve C1: I, 1 air control port of two-position three way pneumatic operated valve
A2: No. II 2 port of two-position three way pneumatic operated valve of P2: No. II 2 air inlet of two-position three way pneumatic operated valve
B2: No. II 2 gas outlet of two-position three way pneumatic operated valve C2: II, 2 air control port of two-position three way pneumatic operated valve
A3: No. I 3 gas outlet of bi-bit bi-pass pneumatic operated valve of P3: No. I 3 air inlet of bi-bit bi-pass pneumatic operated valve
P4: No. II 4 air inlet of bi-bit bi-pass pneumatic operated valve of C3: No. I 3 air control port of bi-bit bi-pass pneumatic operated valve
A4: No. II 4 gas outlet of bi-bit bi-pass pneumatic operated valve C4: II, 4 air control port of bi-bit bi-pass pneumatic operated valve
Pa5: or 5 first air inlet Pb5 of gate shuttle valve: or 5 second air inlet of gate shuttle valve
A5: or 5 gas outlet of gate shuttle valve P7: III, 7 air inlet of bi-bit bi-pass pneumatic operated valve
A7: No. III 7 gas outlet of bi-bit bi-pass pneumatic operated valve C7: III, 7 air control port of bi-bit bi-pass pneumatic operated valve
P8: the adaptive switched 8 air inlet A8 of switch valve of hand-: adaptive switched 8 first port of switch valve of hand-
B8: the adaptive switched 8 second port C8 of switch valve of hand-: adaptive switched 8 first gas outlet of switch valve of hand-
D8: the adaptive switched 8 second gas outlet P9 of switch valve of hand-: 9 air inlet of fault alarm switch valve
A9: 9 gas outlet P10 of fault alarm switch valve: 10 air inlet of low water float switch valve
A10: 10 port B10 of low water float switch valve: 10 gas outlet of low water float switch valve
P11: secondary 11 air inlet A11 of low water float switch valve: secondary 11 port of low water float switch valve
B11: secondary 11 gas outlet P12 of low water float switch valve: 12 air inlet of High High Level float switch valve
A12: 12 gas outlet P13 of High High Level float switch valve: high-order 13 air inlet of float switch valve
A13: high-order 13 gas outlet P0 of float switch valve: 14 air inlet of pneumatic diaphragm pump
A0: 14 exhaust outlet S0 of pneumatic diaphragm pump: 14 water inlet of pneumatic diaphragm pump
D0: 14 water outlet F0 of pneumatic diaphragm pump: 19 air inlet of air distributor
F1: 19 first gas outlet F2 of air distributor: 19 second gas outlet of air distributor
F3: 19 third gas outlet F4 of air distributor: the 4th gas outlet of air distributor 19.
Specific embodiment
A kind of redundancy-type coal mine return air lane of the invention is drained with pneumatic type with reference to the accompanying drawings and embodiments and is automatically controlled
The feature and working principle of system are further described in detail, and the present embodiment is detailed description of the invention, not right
The present invention makes any restrictions.
It drains automatic control system with pneumatic type according to a kind of 1 pair of redundancy-type coal mine return air lane of attached drawing to install, from low
To it is high successively by low water float, secondary low water float, high-order floating ball, be more than position floating ball respectively with low water float switch valve 10, secondary low
Position float switch valve 11, high-order float switch valve 13, High High Level float switch valve 12 are connected, according to real in the dedicated air return lane of coal mine
Border ponding situation and protection require, and adjust the specific height of four floating balls, to guarantee that pneumatic operated valve used in entire control loop can be just
Often work, the air pressure in 18 exit of pneumatic supply need to be maintained at 0.7 MPa or so, and the air pressure of compressed air pressure reducing valve 16 need to be transferred to
Between 0.4-0.6MPa.
1. automatically controlling drainage procedure
In the preproduction phase, fault alarm switch valve 9 is opened, keeps fault alarm switch valve 9 air inlet P9 and gas outlet A9 disconnected
It opens.The adaptive switched switch valve 8 of hand-is switched into automatic control hull-borne, even if the adaptive switched 8 air inlet P8 of switch valve of hand-and
One port A8 is connected, and the compressed gas in pneumatic source 18 is through air filter 17, pressure reducing valve 16, the adaptive switched switch valve 8 of hand-at this time
Air inlet P8 and the first port A8 enters 19 air inlet F0 of air distributor, and is divided into four roads from 19 4 outlets of air distributor
Mouth F1, F2, F3, F4 are output in coupled gas piping.When water level is lower, low water float and time low water float are also not
Float, low water float switch valve 10 air inlet P10 and port A10 is obstructed, secondary 11 air inlet P11 of low water float switch valve and port
A11 is also obstructed, and No. I 1 air control port C1 of two-position three way pneumatic operated valve arrives time 11 gas of low water float switch valve through low water float switch valve 10
All without air pressure in the gas connection pipe road of mouthful A11, No. I 1 air control port C1 of two-position three way pneumatic operated valve does not have a gas control signal, and No. I two
1 spool of position threeway pneumatic operated valve is in situ, i.e., No. I two-position three way pneumatic operated valve 1 air inlet P1 and the first gas outlet A1 are connected, from sky
The gas of 19 first gas outlet F1 of gas distributor output is through No. I two-position three way pneumatic operated valve 1 air inlet P1 and the first gas outlet A1 points
It is not transported to 2 air control port C2 of No. II two-position three way pneumatic operated valve, No. I 3 air inlet P3 of bi-bit bi-pass pneumatic operated valve and high-order float switch
13 air inlet P13 of valve, No. II 2 air control port C2 of two-position three way pneumatic operated valve is driven spool mobile, makes No. II two by pressure control at this time
2 port A2 of position threeway pneumatic operated valve is connected with gas outlet B2.
When water level rises, ponding touches low water float and floats it, drives 10 spool of low water float switch valve mobile,
Low water float switch valve 10 air inlet P10 and gas outlet A10 is connected, subsequent water level continues to rise, and secondary low water float floats, band
Dynamic time 11 spool of low water float switch valve is mobile, is also switched on time 11 air inlet P11 and gas outlet A11 of low water float switch valve,
The gas exported at this time from 19 third gas outlet F3 of air distributor is through time 11 air inlet P11 of low water float switch valve and port
A11, low water float switch valve 10 air inlet P10 and port A10 are delivered to 1 air control port C1 of No. I two-position three way pneumatic operated valve, drive valve
Core is mobile, No. I two-position three way pneumatic operated valve 1 air inlet P1 and the second gas outlet B1 is connected, from 19 first outlet of air distributor
The gas of mouth F1 output is transported to No. II two-position three way gas through No. I two-position three way pneumatic operated valve 1 air inlet P1 and the second gas outlet B1
Dynamic 2 air inlet P2 of valve, due to being respectively delivered to No. II two-position three way from No. I 1 first gas outlet A1 of two-position three way pneumatic operated valve before this
2 air control port C2 of pneumatic operated valve, No. I 3 air inlet P3 of bi-bit bi-pass pneumatic operated valve and high-order 13 air inlet P13 connecting tube of float switch valve
Interior air pressure is not released, and No. II two-position three way pneumatic operated valve 2 is not led still in slave mode, air inlet P2 and port A2
It is logical.
Water level continues to increase, and until high-order floating ball floats, high-order 13 spool of float switch valve of drive is mobile, makes high-order floating ball
Switch valve 13 air inlet P13 and gas outlet A13 conducting, will be defeated from No. I 1 first gas outlet A1 of two-position three way pneumatic operated valve difference before this
It is sent to 2 air control port C2 of No. II two-position three way pneumatic operated valve, No. I 3 air inlet P3 of bi-bit bi-pass pneumatic operated valve and high-order float switch valve 13
Gas in air inlet P13 connecting tube is released from high-order 13 gas outlet A13 of float switch valve, at this time No. II two-position three way pneumatic operated valve
For 2 air control port C2 without gas control signal, spool returns to original position, and No. II two-position three way pneumatic operated valve 2 air inlet P2 and port A2 is connected, from
19 first gas outlet F1 of air distributor output gas through No. I two-position three way pneumatic operated valve 1 air inlet P1 and the second gas outlet B1,
No. II two-position three way pneumatic operated valve 2 air inlet P2 and port A2 is transported to or 5 second air inlet Pb5 of gate shuttle valve, promotion or gate
5 spool of shuttle valve is mobile, block or 5 first air inlet Pa5 of gate shuttle valve, compressed gas from or 5 second air inlet Pb5 of gate shuttle valve
Into from gas outlet A5 discharge No. III 7 air control port C7 of bi-bit bi-pass pneumatic operated valve of arrival, driving spool is mobile, makes No. III two two
Logical 7 air inlet P7 of pneumatic operated valve is connected with gas outlet A7, controls the compressed gas in pneumatic source 18 directly through No. III bi-bit bi-pass gas
Dynamic valve 7 air inlet P7 and gas outlet A7, is connected with 14 air inlet P0 of pneumatic diaphragm pump, and compressed gas enters pneumatic from air inlet P0
In diaphragm pump 14, a wherein chamber is introduced compressed gas by valve actuating mechanism, push chamber septation moves, and gas in another chamber
It is vented by exhaust outlet A0, while being absorbed water by water inlet S0 into intracavitary in the chamber of septum of the diaphragm pump other side, once diaphragm movement
Stroke end is reached, valve actuating mechanism introduces compressed gas into another working chamber automatically, and diaphragm is pushed to move in the opposite direction, pushes
Water is discharged from cavity through water outlet D0, to move back and forth with making diaphragm continuous synchronization, realizes the continuous row of pneumatic diaphragm pump 14
Water.
When water level is lower than high-order floating ball, high-order floating ball is fallen, and high-order 13 spool of float switch valve returns to original position, under
Task readiness.Pneumatic diaphragm pump 14 continues to drain at this time, and when water level decreasing is to lower than secondary low water float, secondary low level is floating
Ball is fallen, and secondary 11 spool of low water float switch valve returns to original position, makes time low water float switch valve 11 port A11 and air inlet P11
It disconnects and is connected with gas outlet B11, No. I 1 air control port C1 of two-position three way pneumatic operated valve is switched through low water float by gas outlet B11
The gas that valve 10 is connected in time pipeline of 11 port A11 of low water float switch valve is exhausted, in order to be discharged as much as possible
Ponding, the present invention has installed No. II throttle valve 21 additional in secondary 11 gas outlet B11 of low water float switch valve, to limit under intraductal atmospheric pressure
Reduction of speed degree makes 1 air control port C1 of No. I two-position three way pneumatic operated valve still be kept air inlet P1 by gas control signal function in a long time
It is connected with the second gas outlet B1, achievees the purpose that extend water discharge time, No. II throttle valve 21 can adjusted to delay 1 minute here
Left and right.In the present invention difference in height of low water float and time low water float can depending on on-site actual situations, if difference in height very little,
Then water level can drop to low water float hereinafter, falling low water float in 1 minute of delay, 10 port of low water float switch valve
A10 and air inlet P10 is disconnected and is connected with gas outlet B10, floating in No. I 1 air control port C1 of two-position three way pneumatic operated valve and low level at this time
The gas not discharged in the pipeline of 10 port A10 connection of ball switch valve can be discharged by 10 gas outlet B10 of low water float switch valve,
No. I throttle valve 20 is mounted in 10 gas outlet B10 of low water float switch valve, can equally limit the decrease speed of intraductal atmospheric pressure, play
The effect for extending water discharge time, can adjust the delay time of No. I throttle valve 20, when No. I two-position three way according to the actual situation here
Air pressure drops to when No. I 1 spool of two-position three way pneumatic operated valve being made to return in situ at 1 air control port C1 of pneumatic operated valve, No. I two-position three way pneumatic operated valve
1 air inlet P1 and the first gas outlet A1 is connected, and the gas exported from 19 first gas outlet F1 of air distributor is through No. I two-position three way
Pneumatic operated valve 1 air inlet P1 and the first gas outlet A1 are again fed to 2 air control port C2 of No. II two-position three way pneumatic operated valve, make No. II two
2 port A2 of threeway pneumatic operated valve is connected with gas outlet B2, by No. II 2 port A2 of two-position three way pneumatic operated valve warp or gate shuttle valve 5 second
Air inlet Pb5 is with the gas in gas outlet A5 to No. III 7 air control port C7 connecting line of bi-bit bi-pass pneumatic operated valve from No. II two three
Logical 2 gas outlet B2 of pneumatic operated valve discharge, No. III 7 spool of bi-bit bi-pass pneumatic operated valve return to original position, and air inlet P7 and gas outlet A7 are disconnected,
Pneumatic diaphragm pump stops working；If in plash mud it is more so that low water float can not fall or low water float and time
The difference in height of low water float is larger, so that water level does not drop to low water float hereinafter, then in No. II 21 delay time of throttle valve
After secondary low water float falls 1 minute, No. I 1 air control port C1 of two-position three way pneumatic operated valve is connected to secondary through low water float switch valve 10
Gas in the pipeline of 11 port A11 of low water float switch valve passes through time 11 gas outlet B11 of low water float switch valve and arranges substantially
Sky, No. I 1 spool of two-position three way pneumatic operated valve return to original position, and pneumatic diaphragm pump stops working.The present invention is using low water float and time low
The redundancy structure of position floating ball is, it can be achieved that the Redundant Control that pneumatic diaphragm pump is closed, i.e., no matter low water float or time low level float
Ball is fallen, and can all pneumatic diaphragm pump be made to stop working by one section of delay.
2. fault alarm process
A kind of redundancy-type coal mine return air lane pneumatic type draining automatic control system provided in this embodiment is automatically controlling
Under drainage works state, for two kinds of accident designs that may be present wind-tone horn warning function:
A) high-order floating ball failure
If high-order floating ball failure can not float, pneumatic diaphragm pump 14 cannot be started and drained, at this time ponding
High-order floating ball can be covered and touch High High Level floating ball and float High High Level floating ball, driving 12 spool of High High Level float switch valve moves
It is dynamic, High High Level float switch valve 12 air inlet P12 and gas outlet A12 is connected, at this time from 19 second gas outlet of air distributor
The gas of F2 output is respectively delivered to No. II bi-bit bi-pass gas through High High Level float switch valve 12 air inlet P12 and gas outlet A12
Dynamic 4 air control port C4 of valve, No. I 3 air control port C3 of bi-bit bi-pass pneumatic operated valve and fault alarm switch valve 9 air inlet P9, No. II two two
Logical 4 air control port C4 of pneumatic operated valve is driven spool mobile, makes 4 air inlet P4 of No. II bi-bit bi-pass pneumatic operated valve and outlet by pressure control
Mouthful A4 conducting, the gas exported from the 4th gas outlet F4 of air distributor 19 through No. II 4 air inlet P4 of bi-bit bi-pass pneumatic operated valve and
Gas outlet A4 is transported to alarm hooter 6, its yowl is made to warn, and No. I 3 air control port C3 of bi-bit bi-pass pneumatic operated valve is bullied at the same time
Voltage-controlled system, driving spool is mobile, and No. I bi-bit bi-pass pneumatic operated valve 3 air inlet P3 and gas outlet A3 is connected, will be before this from No. I two
1 first gas outlet A1 of position threeway pneumatic operated valve is respectively delivered to 2 air control port C2 of No. II two-position three way pneumatic operated valve, No. I bi-bit bi-pass gas
Gas in dynamic 3 air inlet P3 of valve and high-order 13 air inlet P13 connecting tube of float switch valve goes out from No. I bi-bit bi-pass pneumatic operated valve 3
Port A3 is released, and role is identical when effect normally floats with high-order floating ball, therefore high-order floating ball failure can not
Starting pneumatic diaphragm pump is remained to when floating completes proper drainage.Work as water level decreasing, High High Level floating ball is fallen, and opens High High Level floating ball
It closes valve 12 air inlet P12 and gas outlet A12 to disconnect, but connects 12 gas outlet A12 of High High Level float switch valve, No. II bi-bit bi-pass
The flue of 4 air control port C4 of pneumatic operated valve, No. I 3 air control port C3 of bi-bit bi-pass pneumatic operated valve and 9 air inlet P9 of fault alarm switch valve
Gas in road does not release, and alarm hooter 6 continues to alarm, and until patrolman's shutdown fault alarm switch valve 9, makes failure
Alarm switch valve 9 air inlet P9 and gas outlet A9 conducting will connect 12 gas outlet A12 of High High Level float switch valve, No. I two two
The gas of logical 3 air control port C3 of pneumatic operated valve, 9 air inlet P9 of fault alarm switch valve and No. II 4 air control port C4 of bi-bit bi-pass pneumatic operated valve
Gas in pipeline is released through 9 gas outlet A9 of alarm switch valve, and No. II 4 spool of bi-bit bi-pass pneumatic operated valve returns to original position, disconnects II
Number 4 air inlet P4 of bi-bit bi-pass pneumatic operated valve and gas outlet A4, alarm terminate.After debugging, fault alarm switch is reopened
Valve 9, in case being used when alarm next time.
B) low water float or secondary low water float failure
If low water float or the failure of secondary low water float can not float, from 19 third gas outlet F3 of air distributor
The gas of output can not be delivered to No. I two-position three way pneumatic operated valve 1 through secondary low water float switch valve 11 and low water float switch valve 10
Air control port C1, so even be that high-order floating ball normally floats and can not start pneumatic diaphragm pump 14 and drained, ponding meeting at this time
It covers high-order floating ball and then floats High High Level floating ball, lead High High Level float switch valve 12 air inlet P12 and gas outlet A12
It is logical, No. II is respectively delivered to through High High Level float switch valve 12 from the gas that 19 second gas outlet F2 of air distributor is exported at this time
4 air control port C4 of bi-bit bi-pass pneumatic operated valve, No. I 3 air control port C3 of bi-bit bi-pass pneumatic operated valve and 9 air inlet P9 of fault alarm switch valve,
No. II 4 air control port C4 of bi-bit bi-pass pneumatic operated valve is made No. II bi-bit bi-pass pneumatic operated valve 4 air inlet P4 and gas outlet A4 by pressure control
Conducting, the gas exported from the 4th gas outlet F4 of air distributor 19 is through No. II 4 air inlet P4 of bi-bit bi-pass pneumatic operated valve and outlet
Mouth A4 is transported to alarm hooter 6, its yowl is made to warn, and until patrolman turns off fault alarm switch valve 9, alarm terminates.?
During this, since No. I 1 air control port C1 of two-position three way pneumatic operated valve does not have gas control signal, can not start automatically pneumatic diaphragm pump 14 into
The adaptive switched switch valve 8 of hand-must be switched to manual drainage state of a control and ponding is discharged by row draining, patrolman, and fast
Speed carries out equipment inspection, after trouble shooting, then system is put back into.
3. manually controlling drainage procedure
A kind of redundancy-type coal mine return air lane pneumatic type draining automatic control system provided in this embodiment is in addition to being able to achieve
Outside Pneumatic automatic-control drains, pneumatic draining can also be manually controlled, is made when convenient artificial inspection is with trouble hunting
With.When operation, the adaptive switched switch valve 8 of hand-need to only be switched to and manually control drainage position, make adaptive switched 8 air inlet of switch valve of hand-
Mouth P8 and the second port B8 is connected, and the first port A8 and the first gas outlet C8 are connected, will be by hand-certainly by the first gas outlet C8
8 first port A8 of switching valve and air distributor 19 are transported to the discharge of the gas in each connecting line, stop automatically controlling
Drainage procedure, while the compressed gas in pneumatic source 18 is through air filter 17, pressure reducing valve 16, adaptive switched 8 air inlet of switch valve of hand-
Mouthful P8 and the second port B8 is transported to or 5 first air inlet Pa5 of gate shuttle valve, pushes or 5 spool of gate shuttle valve is mobile, block or
5 second air inlet Pb5 of gate shuttle valve, compressed gas from or 5 first air inlet Pa5 of gate shuttle valve enter, gas outlet A5 discharge, with
No. III 7 air control port C7 of bi-bit bi-pass pneumatic operated valve is connected, and driving spool is mobile, connects air inlet P7 with gas outlet A7, controls gas
Compressed gas in dynamic source 18 is directly through No. III bi-bit bi-pass pneumatic operated valve 7 air inlet P7 and gas outlet A7, from pneumatic diaphragm pump 14
Air inlet P0 enters in pneumatic diaphragm pump 14, and driving pneumatic diaphragm pump 14 is drained.After ponding empties, hand-need to only be autotomyed
It changes switch valve 8 and switches to automatic control drainage position, at this time the adaptive switched 8 second port B8 of switch valve and the second gas outlet D8 of hand-
Connect, by 8 second port B8 of the second gas outlet D8 opponent-adaptive switched switch valve warp or 5 first air inlet Pa5 of gate shuttle valve and
The gas that gas outlet A5 is transported in the pipeline of 7 air inlet P7 of No. III bi-bit bi-pass pneumatic operated valve is exhausted, No. III bi-bit bi-pass
7 spool of pneumatic operated valve returns to original position, and No. III bi-bit bi-pass pneumatic operated valve 7 air inlet P7 and gas outlet A7 are disconnected, and pneumatic diaphragm pump 14 stops
Only manually control drainage procedure.
In conclusion redundancy-type coal mine return air provided in this embodiment lane pneumatic type drains automatic control system and utilizes four
A floating ball realizes that pneumatic diaphragm pump is automatically turned on when water bunker level rises to the upper limit to be drained, and is declined to incude height of water level
Pneumatic diaphragm pump is automatically closed when to lower limit and stops draining, the function of whistle alarm when water level transfinites, two high-order floating balls can be real
The Redundant Control now opened to pneumatic diaphragm pump, two low water floats can be directed to ponding show slurry, realize to pneumatic diaphragm pump
The Redundant Control of closing is a kind of redundancy-type pneumatic type draining automatic control system, not only have it is unattended, do not use power supply
And outside the advantages of fault alarm, also have at low cost, high reliablity, adaptable, performance is stable and without liquid filter
Advantage can adapt to the various water quality and special operation condition condition of the dedicated air return lane of underground coal mine, be the dedicated air return lane of existing coal mine
The renewal product of drainage system.
Claims (2)
1. a kind of redundancy-type coal mine return air lane drains automatic control system, including pneumatic diaphragm pump (14), pressure reducing valve with pneumatic type
(16), air filter (17), pneumatic source (18), air distributor (19) and systems control division point；
The systems control division point includes No. I two-position three way pneumatic operated valve (1), No. II two-position three way pneumatic operated valve (2), No. I two two
Logical pneumatic operated valve (3), No. II bi-bit bi-pass pneumatic operated valve (4) or gate shuttle valve (5), alarm hooter (6) and fault alarm switch valve
(9)；
No. I two-position three way pneumatic operated valve (1) air inlet (P1) is through gas piping and (19) first gas outlet of air distributor
(F1) it is connected；
No. II two-position three way pneumatic operated valve (2) air inlet (P2) goes out through gas piping and No. I two-position three way pneumatic operated valve (1) second
Port (B1) is connected；
Fault alarm switch valve (9) gas outlet (A9) is directly connected to outside air；
Pneumatic diaphragm pump (14) exhaust outlet (A0) is connectionless, and for being vented, pneumatic diaphragm pump (14) water inlet (S0) is through liquid
Body pipeline is connected with sump (15), and pneumatic diaphragm pump (14) water outlet (D0) is connect with by sump (15) inner product with outlet pipe (22)
Water discharge；
It is characterized in that, the systems control division point further includes No. III bi-bit bi-pass pneumatic operated valve (7), the adaptive switched switch valve of hand-
(8), low water float switch valve (10), secondary low water float switch valve (11), High High Level float switch valve (12), high-order float switch
Valve (13), No. I throttle valve (20) and No. II throttle valve (21)；
No. I two-position three way pneumatic operated valve (1) air control port (C1) is through gas piping and low water float switch valve (10) port (A10)
Be connected, No. I (1) first gas outlet (A1) of two-position three way pneumatic operated valve through gas piping respectively with No. II two-position three way pneumatic operated valve (2)
Air control port (C2), No. I bi-bit bi-pass pneumatic operated valve (3) air inlet (P3), high-order float switch valve (13) air inlet (P13) are connected；
No. II two-position three way pneumatic operated valve (2) port (A2) is through gas piping and or (5) second air inlet (Pb5) of gate shuttle valve
It is connected, No. II two-position three way pneumatic operated valve (2) gas outlet (B2) is directly connected to outside air；
No. I bi-bit bi-pass pneumatic operated valve (3) air control port (C3) goes out with High High Level float switch valve (12) respectively through gas piping
Port (A12), No. II bi-bit bi-pass pneumatic operated valve (4) air control port (C4), fault alarm switch valve (9) air inlet (P9) are connected, and No. I
Bi-bit bi-pass pneumatic operated valve (3) gas outlet (A3) is directly connected to outside air；
No. II bi-bit bi-pass pneumatic operated valve (4) air inlet (P4) is through gas piping and the 4th gas outlet of air distributor (19)
(F4) it is connected, No. II bi-bit bi-pass pneumatic operated valve (4) gas outlet (A4) is connected through gas piping with alarm hooter (6)；
Described or (5) first air inlet (Pa5) of gate shuttle valve is through gas piping and adaptive switched (8) second port of switch valve of hand-
(B8) it is connected or gate shuttle valve (5) gas outlet (A5) is through gas piping and No. III bi-bit bi-pass pneumatic operated valve (7) air control port (C7) phase
Even；
No. III bi-bit bi-pass pneumatic operated valve (7) air inlet (P7) is connected through gas piping with pneumatic source (18), and No. III two two
Logical pneumatic operated valve (7) gas outlet (A7) is connected through gas piping with pneumatic diaphragm pump (14) air inlet (P0)；
The adaptive switched switch valve of hand-(8) air inlet (P8) is connected through gas piping with pressure reducing valve (16), the adaptive switched switch of hand-
(8) first port (A8) of valve is connected through gas piping with air distributor (19) air inlet (F0), the adaptive switched switch valve of hand-(8)
First gas outlet (C8) and the second gas outlet (D8) are directly connected to outside air；
Low water float switch valve (10) air inlet (P10) is through gas piping and time low water float switch valve (11) port
(A11) it is connected；
Secondary low water float switch valve (11) air inlet (P11) is through gas piping and air distributor (19) third gas outlet
(F3) it is connected；
High High Level float switch valve (12) air inlet (P12) is through gas piping and (19) second gas outlet of air distributor
(F2) it is connected；
High position float switch valve (13) gas outlet (A13) is directly connected to outside air；
No. I throttle valve (20) is connected with low water float switch valve (10) gas outlet (B10), No. I throttle valve
(20) for limiting the exhaust velocity of low water float switch valve (10)；
No. II throttle valve (21) is connected with secondary low water float switch valve (11) gas outlet (B11), No. II throttling
Valve (21) is used to limit the exhaust velocity of time low water float switch valve (11).
2. a kind of redundancy-type coal mine return air lane as described in claim 1 drains automatic control system with pneumatic type, feature exists
In, further include the low water float to connect with the low water float switch valve (10), with secondary low water float switch valve (11) phase
The secondary low water float that connects, the high-order floating ball to connect with the high-order float switch valve (13) and with the High High Level float switch
The High High Level floating ball that valve (12) connects.
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| CN201711075468.7A CN107939442B (en) | 2017-11-06 | 2017-11-06 | A kind of redundancy-type coal mine return air lane drains automatic control system with pneumatic type |
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| CN201711075468.7A CN107939442B (en) | 2017-11-06 | 2017-11-06 | A kind of redundancy-type coal mine return air lane drains automatic control system with pneumatic type |
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| CN101915230A (en) * | 2010-08-03 | 2010-12-15 | 清华大学 | Pneumatic actuator for water collection interface unit of vacuum drainage system |
| CN103131492A (en) * | 2013-03-07 | 2013-06-05 | 黑龙江省中贝技术有限公司 | Device and method for condensing and separating water in methane |
| CN104018877A (en) * | 2014-06-03 | 2014-09-03 | 太原理工大学 | Pneumatic type automatic drainage control system used for coal mine air return way |
| CN206554973U (en) * | 2016-12-01 | 2017-10-13 | 赵津平 | A kind of air pump Auto-drainage control system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915230A (en) * | 2010-08-03 | 2010-12-15 | 清华大学 | Pneumatic actuator for water collection interface unit of vacuum drainage system |
| CN103131492A (en) * | 2013-03-07 | 2013-06-05 | 黑龙江省中贝技术有限公司 | Device and method for condensing and separating water in methane |
| CN104018877A (en) * | 2014-06-03 | 2014-09-03 | 太原理工大学 | Pneumatic type automatic drainage control system used for coal mine air return way |
| CN206554973U (en) * | 2016-12-01 | 2017-10-13 | 赵津平 | A kind of air pump Auto-drainage control system |
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