CN202788918U - Coal mine extraction system gas intelligent control device - Google Patents

Coal mine extraction system gas intelligent control device Download PDF

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Publication number
CN202788918U
CN202788918U CN 201220210786 CN201220210786U CN202788918U CN 202788918 U CN202788918 U CN 202788918U CN 201220210786 CN201220210786 CN 201220210786 CN 201220210786 U CN201220210786 U CN 201220210786U CN 202788918 U CN202788918 U CN 202788918U
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CN
China
Prior art keywords
gas
electrically operated
operated valve
drainage pipeline
pump drainage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220210786
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Chinese (zh)
Inventor
杨运富
邹学彦
董银东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUAINAN HUAGUANG INSTITUTE OF MINE ELECTRONIC TECHNOLOGY
Original Assignee
HUAINAN HUAGUANG INSTITUTE OF MINE ELECTRONIC TECHNOLOGY
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Publication date
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Priority to CN 201220210786 priority Critical patent/CN202788918U/en
Application granted granted Critical
Publication of CN202788918U publication Critical patent/CN202788918U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a coal mine extraction system gas intelligent control device comprising a main control circuit, a gas concentration sensor, a gas electrically operated valve and an air electrically operated valve, wherein the gas concentration sensor is installed in an air return pipe of a pump drainage pipeline of the coal mine extraction system, the gas electrically operated valve is installed in a gas inlet pipe of an pump drainage pipeline, the air electrically operated valve is installed in an air inlet pipe of the pump drainage pipeline, the gas concentration sensor is used for collecting gas concentration in the air return pipe of the pump drainage pipeline and generating a gas concentration electrical signal, the main control circuit is used for acquiring the gas concentration electrical signal and comparing the gas concentration corresponding to the gas concentration electrical signal with a preset normal concentration threshold, when the gas concentration electrical signal is beyond or below the preset normal concentration threshold, opening degree values of the gas electrically operated valve and the air electrically operated valve are respectively controlled dynamically through built-in proportion integration differentiation (PID) algorithm or fuzzy algorithm, the gas concentration in the air return pipe of the pump drainage pipeline is remained in a normal range all the time, so that automatic dynamic control of the gas concentration of the coal mine extraction system is achieved.

Description

Coal extraction system gas intelligence controlling device
Technical field
The utility model relates to a kind of coal extraction system Gas Control, relates in particular to a kind of coal extraction system gas intelligence controlling device.
Background technology
" take out afterwards first adopt, with wind fixed output quota, monitoring " is 12 word policies of control of coalmine gas, and includes the track of state coal working system inhibition and generation in.Wherein, " take out afterwards first and adopt " is the source of gas control and basic, and gas pumping has not only solved the problem of gas exceeding limit, for huge numbers of families provide clean energy resource, has reduced carbon emission simultaneously.
Yet because actual coal geology complex structure, in coal production process, coal-face occasional generation gas density exceeds standard, and the return airway gas density is transfinited, and will affect safety in production.Taked Artificial Control gas valve and air door to regulate the gas density that enters return airway in the past, because manually operated hysteresis quality and inexactness, in fact be difficult to reach the target of in real time effective control gas concentration, thereby, the return airway gas density usually occurs exceed standard, impact safety and production.
The utility model content
The purpose of this utility model is to provide a kind of coal extraction system gas intelligence controlling device that can carry out to gas density automatic dynamic control.
For achieving the above object, the utility model provides a kind of coal extraction system gas intelligence controlling device, comprise governor circuit, be installed on gas concentration sensor in the backwind tube of pump drainage pipeline of coal extraction system, be installed on the gas electrically operated valve in the gas inlet pipe of described pump drainage pipeline and be installed on air electrically operated valve in the blast pipe of described pump drainage pipeline, wherein
Described gas concentration sensor is used for gathering the interior gas density of backwind tube of described pump drainage pipeline, and generates the gas density signal of telecommunication;
Described governor circuit is used for obtaining the described gas density signal of telecommunication, and the corresponding gas density of the described gas density signal of telecommunication and the normal concentration threshold value of presetting are compared; When exceeding or be lower than described normal concentration threshold value, respectively the aperture size of described gas electrically operated valve and described air electrically operated valve is dynamically controlled by built-in pid algorithm or fuzzy algorithmic approach, made the interior gas density of backwind tube of described pump drainage pipeline be in all the time normal range (NR).
In the coal extraction of the present utility model system gas intelligence controlling device, gas concentration sensor gathers the gas density in the backwind tube of pump drainage pipeline, and generates the gas density signal of telecommunication; After governor circuit obtains the gas density signal of telecommunication, the corresponding gas density of the gas density signal of telecommunication and the normal concentration threshold value of presetting are compared; When exceeding or be lower than the normal concentration threshold value, respectively the aperture size of gas electrically operated valve and air electrically operated valve is dynamically controlled by built-in pid algorithm or fuzzy algorithmic approach, make the interior gas density of backwind tube of pump drainage pipeline be in all the time normal range (NR), thereby realized the automatic dynamic control to coal extraction system gas density.
Description of drawings
Fig. 1 is the structural representation of coal extraction of the present utility model system gas intelligence controlling device.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in detail:
With reference to shown in Figure 1, the coal extraction system gas intelligence controlling device of present embodiment comprises governor circuit 5, is installed on gas concentration sensor 2 in the backwind tube of pump drainage pipeline 1 of coal extraction system, is installed on the gas electrically operated valve 3 in the gas inlet pipe of pump drainage pipeline 1 and is installed on air electrically operated valve 4 in the blast pipe of pump drainage pipeline 1 etc.Wherein, governor circuit 5 comprises again: signaling conversion circuit 51, photoelectric isolating circuit 52, the first relay drive circuit 55b, the second relay drive circuit 55a, the first valve motor 55b and second valve door motor 55a.Wherein,
Gas concentration sensor 2 is used for gathering the interior gas density of backwind tube of pump drainage pipeline 1, and generates the gas density signal of telecommunication; Signaling conversion circuit 51 is used for the gas density signal of telecommunication that gas concentration sensor 2 generates is transformed into the digitized gas density signal of telecommunication; Single-chip microcomputer 53 is used for the corresponding gas density of the digitized gas density signal of telecommunication and the normal concentration threshold value (for example 0.8%CH4) of presetting are compared; When exceeding or be lower than the normal concentration threshold value, respectively the aperture size of described gas electrically operated valve 3 and air electrically operated valve 4 is dynamically controlled by built-in pid algorithm or fuzzy algorithmic approach, thereby made the interior gas density of backwind tube of pump drainage pipeline 1 be in all the time normal range (NR); Namely when exceeding the normal concentration threshold value, single-chip microcomputer 53 control gas electrically operated valves 3 suitably leave little, simultaneously, air electrically operated valve 4 is suitably opened greatly, and when being lower than the normal concentration threshold value, single-chip microcomputer 53 control gas electrically operated valves 3 suitably leave greatly, simultaneously, air electrically operated valve 4 is suitably opened little; The first relay drive circuit 55b, be used for receiving the gas control signal of single-chip microcomputer 53 outputs, and the driving signal controlling first valve motor 55b rotation corresponding according to the generation of gas control signal, and then drive the corresponding on-off action of gas electrically operated valve 3 execution; The second relay drive circuit 55a, be used for receiving the air intake control signal of single-chip microcomputer 53 outputs, and the driving signal controlling second valve door motor 55a rotation corresponding according to the generation of air intake control signal, and then drive the corresponding on-off action of air electrically operated valve 4 execution.
In the present embodiment, when the air-return duct gas density approached or surpass preset value, single-chip microcomputer also can make audible-visual annunciator send sound and light alarm by external sound light alarming circuit, reminded the Field Force.This device can also form interlocked control with miscellaneous equipment, also can carry out Communication Control with miscellaneous equipment, realizes remote setting or and Long-distance Control.
Above embodiment is described preferred embodiment of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.

Claims (2)

1. coal extraction system gas intelligence controlling device, it is characterized in that, comprise governor circuit (5), be installed on gas concentration sensor (2) in the backwind tube of pump drainage pipeline (1) of coal extraction system, be installed on the gas electrically operated valve (3) in the gas inlet pipe of described pump drainage pipeline (1) and be installed on the interior air electrically operated valve (4) of blast pipe of described pump drainage pipeline (1), wherein
Described gas concentration sensor (2) is used for gathering the interior gas density of backwind tube of described pump drainage pipeline (1), and generates the gas density signal of telecommunication;
Described governor circuit (5) is used for obtaining the described gas density signal of telecommunication, and the corresponding gas density of the described gas density signal of telecommunication and the normal concentration threshold value of presetting are compared; When exceeding or be lower than described normal concentration threshold value, respectively the aperture size of described gas electrically operated valve (3) and described air electrically operated valve (4) is dynamically controlled by built-in pid algorithm or fuzzy algorithmic approach, made the interior gas density of backwind tube of described pump drainage pipeline (1) be in all the time normal range (NR).
2. coal extraction according to claim 1 system gas intelligence controlling device is characterized in that described governor circuit (5) comprising:
Signaling conversion circuit (51) is used for the gas density signal of telecommunication that described gas concentration sensor (2) generates is transformed into the digitized gas density signal of telecommunication;
Single-chip microcomputer (53) is used for the corresponding gas density of the described digitized gas density signal of telecommunication and the normal concentration threshold value of presetting are compared; When exceeding or be lower than described normal concentration threshold value, respectively the aperture size of described gas electrically operated valve (3) and described air electrically operated valve (4) is dynamically controlled by built-in pid algorithm or fuzzy algorithmic approach, made the interior gas density of backwind tube of described pump drainage pipeline (1) be in all the time normal range (NR);
The first relay drive circuit (55b), be used for receiving the gas control signal of described single-chip microcomputer (53) output, and generate corresponding driving signal controlling the first valve motor (55b) rotation according to described gas control signal, and then drive described gas electrically operated valve (3) and carry out corresponding on-off action;
The second relay drive circuit (55a), be used for receiving the air intake control signal of described single-chip microcomputer (53) output, and generate corresponding driving signal controlling second valve door motor (55a) rotation according to described air intake control signal, and then drive described air electrically operated valve (4) and carry out corresponding on-off action.
CN 201220210786 2012-05-11 2012-05-11 Coal mine extraction system gas intelligent control device Expired - Fee Related CN202788918U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220210786 CN202788918U (en) 2012-05-11 2012-05-11 Coal mine extraction system gas intelligent control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220210786 CN202788918U (en) 2012-05-11 2012-05-11 Coal mine extraction system gas intelligent control device

Publications (1)

Publication Number Publication Date
CN202788918U true CN202788918U (en) 2013-03-13

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Application Number Title Priority Date Filing Date
CN 201220210786 Expired - Fee Related CN202788918U (en) 2012-05-11 2012-05-11 Coal mine extraction system gas intelligent control device

Country Status (1)

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CN (1) CN202788918U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108316963A (en) * 2018-03-01 2018-07-24 刘晓靖 Underground coal mine explosion protection system
CN108643959A (en) * 2018-03-01 2018-10-12 杨帅 Underground coal mine explosion-proof method
CN110685732A (en) * 2019-09-29 2020-01-14 华北科技学院 Coal seam drilling gas extraction method based on extraction pipeline valve control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108316963A (en) * 2018-03-01 2018-07-24 刘晓靖 Underground coal mine explosion protection system
CN108643959A (en) * 2018-03-01 2018-10-12 杨帅 Underground coal mine explosion-proof method
CN110685732A (en) * 2019-09-29 2020-01-14 华北科技学院 Coal seam drilling gas extraction method based on extraction pipeline valve control

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130313

Termination date: 20150511

EXPY Termination of patent right or utility model