CN103334909B - Positive pressure bundle gasing pump - Google Patents
Positive pressure bundle gasing pump Download PDFInfo
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- CN103334909B CN103334909B CN201310298416.1A CN201310298416A CN103334909B CN 103334909 B CN103334909 B CN 103334909B CN 201310298416 A CN201310298416 A CN 201310298416A CN 103334909 B CN103334909 B CN 103334909B
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- pump head
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Abstract
The present invention relates to a kind of down-hole gas sampling and conveying equipment, particularly a kind of positive pressure bundle gasing pump.Comprise base, base is fitted with anti-explosion motor and cabinet, the two ends of cabinet are provided with pump head, barrier film and valve plate is provided with in pump head, valve plate is provided with intake valve and exhaust valve, in cabinet, bent axle is set, bent axle connects connecting rod pallet, connecting rod pallet is connected with the barrier film in pump head, the barrier film work pump chamber of variable volume is formed between connecting rod pallet and valve plate, bent the tip of the axis Flywheel fan, the end cap of cabinet is arranged spot style flywheel fan air-flow intake grill, arranges flywheel fan air-flow exhaust outlet bottom cabinet.The invention solves the problem that transport gas velocity is excessively slow, gas fed distance is limited, ensure that the pure of test end sample gas, staff effectively can be helped to find to judge that tube bank damages and gas leakage situation, improve system capability, add working efficiency and maintenance efficiency.
Description
Technical field
The present invention relates to a kind of down-hole gas sampling and conveying equipment, particularly a kind of positive pressure bundle gasing pump.
Background technique
According to statistics, in the colliery of China's exploitation, the mine that there is spontaneous combustion danger accounts for about 70% of total numeber of mines, and Spontaneous combustion coal accounts for 80% of accumulative minable seam number, and the number of times that freely burning fire occurs accounts for more than 94% of mine fire sum.Therefore, the prevention of spontaneous combustion accident must become the emphasis of safety of coal mines research.Send fire early prediction timely and accurately, not only can take fire-fighting measure in time, fire accident is eliminated in bud, but also the economic loss that fire extinguishing causes can be reduced, prevent the generation of fire accident.
Research shows, the spontaneous combustion development of coal, generally will through three periods, i.e. latent period (also claiming the preparatory stage), self-heating phase, main combustion period.In latent period, coal temperature and ambient temperature do not have anything to change substantially, but the kindling temperature of coal reduces, and chemism strengthens.Enter the spontaneous combustion phase, the oxidation rate of coal increases, and decomposes water outlet, carbon dioxide and carbon monoxide.Oxidation Heat of Formation starts coal temperature is raised, and when coal temperature exceedes critical value (60-80 DEG C) of self-heating, coal temperature will sharply rise, and oxidation rate is accelerated, and occurs coal carbonization, Formed hydrogen compound (C
mh
n), hydrogen (H
2) and the inflammable gas such as carbon monoxide (CO).At this moment it is also the period of fireproof fire-extinguishing most critical.If now take some fire-fighting measures not in time, coal temperature rises to kindling temperature by continuing and enters main combustion period.
Coal, in oxidation and spontaneous combustion process, not only releases certain heat, but also thermal response can occur discharges CO, C
2h
4and C
2h
6in hydrocarbon, and decompose gas componant and have certain corresponding relation between concentration and coal temperature.Therefore the pyrolysis gas product of direct-detection coal in atmosphere constituent concentration change can judge the spontaneous combustion development degree of coal, to carry out the early prediction of fire.
At present, the safe Tube Bundle Monitoring System of coal mine has started more and more to be popularized within coal mines and apply.
Mine safety Tube Bundle Monitoring System be by beam tube by down-hole air extraction everywhere, be aggregated into appointed place, relend and help chromatogram monitoring device to analyze restraining the air sample that gathers, realize CO, CO
2, CH
4, C
2h
4, C
2h
6, O
2, N
2deng the on-line monitoring of gas content, its analysis result is while providing data with Real-Time Monitoring report, analysis daily paper two kinds of modes, also automatically stored in database, to analyze the variation tendency of certain gas content from now on, thus the early prediction to mine spontaneous combustion fire can be achieved.
In actual monitoring sampling work process, in order to the gas sample of down-hole is delivered to appointed place, need by various air extractor to realize the continuous drawing work of gas sample.
Existing various Tube Bundle Monitoring System is all the mode adopting negative pressure ventilation sampling, namely uses extraction pump or vacuum pump to complete the work of mine gas continuous drawing sampling, and this is also the predominant gas sampling plan that current Tube Bundle Monitoring System both at home and abroad adopts.But be no matter in theory or in practical application, all there is several difficulty being difficult to overcome in negative pressure ventilation sampling: 1, transport gas velocity is slow: when adopting negative pressure extracting mine gas sample, because gas delivery pressure can not more than a barometric pressure, so when fed distance is elongated, the pipe resistance of increase can great mitigation of gases transporting velocity.2, gas fed distance is limited: the limit of negative pressure ventilation pressure is a barometric pressure, which results in the limit of gas tube bank fed distance.This causes very large difficulty for the gas sampling work in deep layer colliery.3, sample gas is easily by gaseous contamination on the way: if when damaged or leakage occur at some position of tube bank, negative pressure state in beam tube inside, external environment gas is caused to be easy to be inhaled in beam tube, thus cause mixing of detection site sample gas and leak gas, pollute sample gas, and then affect the analysis result of gas.4, the damage of beam tube and leakage are difficult to be found: because be negative pressure ventilation on the ground, even if somewhere breakage or leakage on beam tube, negative pressure pump still can normally work, and surface personnel is difficult to aware the damage of beam tube and then causes inspector to produce erroneous judgement to down-hole situation.
The patent No. is that the patent application of CN202348627U proposes a kind of beam tube gasing pump, comprises base, equipped anti-explosion motor and cabinet on base, the two ends of cabinet are connected to pump head, wherein, are provided with crankshaft-and-connecting-rod in cabinet, have intake valve, exhaust valve and barrier film in pump head, barrier film is connected with connecting rod.Although this patent solves the excessively slow problem of transport gas velocity, effectively avoid being mixed into of environmental gas in course of conveying, the damage gas leakage part judging beam tube can be easy to, improve maintenance efficiency, ensure that the timely and effective of testing result simultaneously, but the run stability of pump head can not be guaranteed, and electric current is excessive, operating temperature is too high, causes the normal working temperature of connecting rod bearing too high, has a strong impact on the working life of equipment.In R&D process, also by increasing flywheel in order to reduce electric current and load at crankshaft end, but bearing is caused to burn out because temperature is too high.Therefore, power termination is unstable is two hang-ups developing this pump machine with dispelling the heat bad always.
Summary of the invention
According to above deficiency of the prior art, the problem to be solved in the present invention is: provide a kind of equipment that malleation can be adopted to carry gas procedure, the problem that transport gas velocity is excessively slow to solve, gas fed distance is limited, ensure the pure of test end sample gas, staff effectively can be helped to find to judge that tube bank damages and gas leakage situation, improve system capability, increase working efficiency and maintenance efficiency, effective reduction operating temperature, the positive pressure bundle gasing pump increased the service life.
The technical solution adopted for the present invention to solve the technical problems is:
Described positive pressure bundle gasing pump, comprise base, base is fitted with anti-explosion motor and cabinet, the two ends of cabinet are provided with pump head, barrier film and valve plate is provided with in pump head, valve plate is provided with intake valve and exhaust valve, in cabinet, bent axle is set, bent axle connects connecting rod pallet, connecting rod pallet is connected with the barrier film in pump head, forms the barrier film work pump chamber of variable volume between connecting rod pallet and valve plate, bent the tip of the axis Flywheel fan, the end cap of cabinet is arranged spot style flywheel fan air-flow intake grill, flywheel fan air-flow exhaust outlet is set bottom cabinet.
Described positive pressure bundle gasing pump adopts underground malleation conveying gas, overcome the restriction of the maximum atmospheric pressure of negative pressure ventilation, fundamentally solve sample gas transporting velocity excessively slow, the problem that gas fed distance is limited, achieve quick conveying and the long distance delivery of gas, ensure that reliability when gas sample arrives ground work station, guarantee that staff finds the leakage problem of beam tube line timely, ensure that the quick inspection of beam tube breakage and safeguard in time.Bent the tip of the axis is equipped with a flywheel fan, can stablize on the one hand when flywheel fan rotates due to connecting rod pallet reciprocating time resistance different and power that is that cause is unstable; On the other hand can by the air intake of cabinet flywheel fan air-flow air inlet, then by self rotating the centrifugal force produced, air is discharged cabinet by exhaust outlet, the cross-ventilation formed in process plays good heat radiation and cooling-down effect to crankshaft bearing and motor.Flywheel fan air-flow exhaust outlet in addition bottom cabinet has expanding channels to pump head, this design can blow to two pump heads again by there being flywheel to fan the case radiation air of discharging, by the cooperation of radiation air and radiating fin, extraordinary radiating effect can be played to the pump head of the raised temperature by air compressing.Flywheel fan and the design of ventilation flue are in fact the kinetic energy storage motor instability, and a part are converted into the two place heating sources of wind energy to pump machine and carry out twice cooling.
Wherein, preferred version is:
The outer installment of pump head has pump head lid, arranges radiating fin outside pump head lid.Pump head lid can play a protective role to pump head, prevent down-hole rugged environment from causing damage to equipment, and radiating fin plays thermolysis to the heat that pressurized air is assembled.
Described flywheel fan comprises flywheel fan main body, and flywheel fan main body is provided with flywheel fan leaf, Flywheel fan dististyle on flywheel fan leaf.Flywheel fan main body has impeller blade, and flywheel body design is larger qualitative attribute, and together with abutting against with bearing end, to improve run stability.For increasing work efficiency and adding flywheel fan dististyle, overcome the impact of short circuit air flow.
Described flywheel fan leaf radially equidistantly distributes and is arranged in flywheel fan main body.During the work of beam tube gasing pump, requirement is not done to sense of rotation, therefore, flywheel fan leaf is made straight to be radially equally spaced, to adapt to the onsite application requirement of any sense of rotation.Both ensure that and met the requirement of pump head steady running by the larger quality requirement that flywheel is fanned, turn increased a forced draft through bearing simultaneously.
Described flywheel fan main body arranges rear air inlet, flywheel fan dististyle arranges intake grill.Add heat sinking function, reduce bearing operating temperatures, extend the working life of positive pressure bundle gasing pump.
It is corresponding that the rear air inlet that main body is arranged fanned by described flywheel fan air-flow intake grill and flywheel.
Arrange exhaust passage in described cabinet, exhaust passage communicates with the inner chamber of the pump housing.
Described flywheel fan air-flow exhaust outlet is arranged on the end of exhaust passage, and the opening direction of flywheel fan air-flow exhaust outlet is corresponding with the radiating fin outside pump head lid.During the running of beam tube gasing pump, under the centrifugal action that the air of surrounding space is fanned at flywheel, formation low pressure area, center portion, extraneous air enters in the pump housing under atmospheric pressure effect, then in the pump housing through the parts such as bearing, connecting rod, heat is taken away, under the air pressure of the fan-shaped one-tenth of flywheel, air-flow blows to pump head radiating fin through air guide channel through flywheel fan air-flow exhaust outlet, is taken away by the heat that the pressurized gas of pump head radiating fin produces again.
Described cabinet both sides are set up in parallel 2-8 group connecting rod pallet, and each connecting rod pallet is all connected with the barrier film in corresponding pump head.Achieve cabinet to control to organize pump head by the motion control of a bent axle more, considerably increase working efficiency.
The beneficial effect that the present invention has is:
Described positive pressure bundle gasing pump changes underground malleation into by original ground negative pressure extracting gas and carries gas, without the restriction of the maximum atmospheric pressure of negative pressure ventilation, fundamentally solve sample gas transporting velocity excessively slow, the problem that gas fed distance is limited, achieves quick conveying and the long distance delivery of gas.Conveying gas process in, if piping failure gas leakage, negative pressure ventilation can will on the way environmental gas together suction tube bank in, malleation gas transmission then completely avoid this problem, ensure that gas sample arrival ground work station time reliability.If pipeline breaking in addition, the ground handling end of malleation gas transmission there will be the phenomenon of pressure step-down of significantly giving vent to anger, negative pressure ventilation then there will not be, can guarantee that staff finds the leakage problem of beam tube line timely like this, ensure that the quick inspection of beam tube breakage and safeguard in time.Fan the design with ventilation flue about flywheel in pump machine in addition, the power solved in pump machine actual motion is unstable, and bad problem of dispelling the heat, improves working efficiency, adds the safety and reliability of positive pressure pump, extends the pump machine life-span.In general, invention of the present invention solves the biggest problem of down-hole malleation gas transmission, compared with former negative pressure ventilation sampling plan, the efficiency of mine gas conveying improves greatly, the reliability of gaseous sample also obviously promotes, and is also very easy to surface personnel in addition to the maintenance of beam tube and maintenance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is one of flywheel fan structure schematic diagram of the present invention;
Fig. 3 is flywheel fan structure schematic diagram two of the present invention;
Fig. 4 is air channel of the present invention schematic layout pattern;
Wherein: 1, base; 2, flywheel fan air-flow intake grill; 3, pump head lid; 4, cabinet; 5, anti-explosion motor; 6, bent axle; 7, pump head; 8, connecting rod pallet; 9, exhaust valve; 10, intake valve; 11, barrier film; 12, valve plate; 13, flywheel fan air-flow exhaust outlet; 14, flywheel fan; 15, flywheel fan main body; 16, flywheel fan leaf; 17, flywheel fan dististyle; 18, rear air inlet; 19, intake grill; 20, exhaust passage; 21, barrier film work pump chamber; 22, end cap; 23, the pump housing; 24, radiating fin.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As Figure 1-Figure 4, positive pressure bundle gasing pump of the present invention, comprise base 1, base 1 is fitted with anti-explosion motor 5 and cabinet 4, the two ends of cabinet 4 are provided with pump head 7, barrier film 11 and valve plate 12 is provided with in pump head 7, valve plate 12 is provided with intake valve 10 and exhaust valve 9, bent axle 6 is set in cabinet 4, bent axle 6 connects connecting rod pallet 8, connecting rod pallet 8 is connected with the barrier film 11 in pump head, the barrier film work pump chamber 21 of variable volume is formed between connecting rod pallet 8 and valve plate 12, the end Flywheel fan 14 of bent axle 6, the end cap 22 of cabinet 4 is arranged spot style flywheel fan air-flow intake grill 2, flywheel fan air-flow exhaust outlet 13 is set bottom cabinet 4.
Wherein preferred, the outer installment of pump head 7 has pump head lid 3, arranges radiating fin outside pump head lid 3.Flywheel fan 14 comprises flywheel fan main body 15, flywheel fan main body 15 is provided with flywheel fan leaf 16, Flywheel fan dististyle 17 on flywheel fan leaf 16, flywheel fan leaf 16 radially equidistantly distributes and is arranged in flywheel fan main body 15, flywheel fan main body 15 arranges rear air inlet 18, flywheel fan dististyle 17 arranges intake grill 19, and it is corresponding that the rear air inlet 18 that main body 15 is arranged fanned by flywheel fan air-flow intake grill 2 and flywheel.Arrange exhaust passage 20 in described cabinet 4, exhaust passage 20 communicates with the inner chamber of the pump housing 23.Flywheel fan air-flow exhaust outlet 13 is arranged on the end of exhaust passage 20, and the opening direction of flywheel fan air-flow exhaust outlet 13 is corresponding with the radiating fin 24 outside pump head lid 3.Cabinet 4 both sides are set up in parallel 2-8 group connecting rod pallet 8, and each connecting rod pallet 8 is all connected with the barrier film 11 in corresponding pump head.
Working principle:
Described positive pressure bundle gasing pump is under the driving of anti-explosion motor 5, and the bent axle 6 drivening rod pallet 8 in cabinet 4 is reciprocating.Under the drive of connecting rod pallet 8, when barrier film 11 approaches the motion of bent axle 6 direction, pump head diaphragm cavity internal air pressure step-down, by intake valve 10 suction gas; When barrier film moves away from bent axle 6 direction, barrier film 11 compresses chamber air, and the pressurized gas after compressed have exhaust valve 9 to discharge.The direction of arrow of Fig. 4 is the flow direction of flywheel fan air-flow, when bent axle 6 rotates, flywheel driven fan 14 rotates simultaneously, the high speed rotating of flywheel fan 14 can absorb the load of kinetic energy firm power on the one hand, utilize centrifugal force to suck air from intake grill 2 on the other hand, then realize the function to bent axle 6 and pump head lid 3 twice heat radiation from exhaust outlet 13 blow out air.Pump head lid 3 is provided with outside pump head 7.Pump head lid 3 can play a protective role to pump head 7, prevents down-hole rugged environment from causing damage to equipment.Pump head lid 3 there is heat sink design, coordinates exhaust outlet 13 can play the radiating effect good to pump head.
Moving element of the present invention and sealed member all adopt high-abrasive material to make, and can ensure the long-term normal work continuously of beam tube gasing pump, take explosion precaution in addition, adapted anti-explosion motor 5, ensure can normally work in inflammable and explosive working environment.
When the present invention runs, the air of admission line is sucked in diaphragm cavity by barrier film 11 negative pressure produced of moving by intake valve 10, then the reversing motion compression intracavity gas of barrier film 11, make it air pressure to uprise and then released to outlet pipe by exhaust valve 9, achieve the function of negative pressure ventilation malleation gas transmission simultaneously.So fundamentally solve transport gas velocity excessively slow, the problem that gas fed distance is limited, achieve fast transport and the long range propagation of gas.Also prevent the problem being mixed into gas on the way in gas sample transmitting procedure due to piping failure in addition, and surface personnel can be helped to find the problem that beam tube is revealed, improve working efficiency and maintenance efficiency, allow the detection of gas sample can fast and reliable more.The power that flywheel fan and ventilation flue solve in pump machine actual motion is unstable, and bad problem of dispelling the heat, improves working efficiency, adds the safety and reliability of positive pressure pump, extends the pump machine life-span.
Claims (9)
1. a positive pressure bundle gasing pump, comprise base (1), base (1) is fitted with anti-explosion motor (5) and cabinet (4), it is characterized in that: the two ends of cabinet (4) are provided with pump head (7), barrier film (11) and valve plate (12) is provided with in pump head (7), valve plate (12) is provided with intake valve (10) and exhaust valve (9), bent axle (6) is set in cabinet (4), bent axle (6) connects connecting rod pallet (8), connecting rod pallet (8) is connected with the barrier film (11) in pump head, the barrier film work pump chamber (21) of variable volume is formed between connecting rod pallet (8) and valve plate (12), end Flywheel fan (14) of bent axle (6), the end cap (22) of cabinet (4) is arranged spot style flywheel fan air-flow intake grill (2), cabinet (4) bottom arranges flywheel fan air-flow exhaust outlet (13).
2. positive pressure bundle gasing pump according to claim 1, is characterized in that: the outer installment of described pump head (7) has pump head lid (3), and pump head lid arranges radiating fin outside (3).
3. positive pressure bundle gasing pump according to claim 1, it is characterized in that: described flywheel fan (14) comprises flywheel fan main body (15), flywheel fan main body (15) is provided with flywheel fan leaf (16), upper Flywheel fan dististyle (17) of flywheel fan leaf (16).
4. positive pressure bundle gasing pump according to claim 3, is characterized in that: described flywheel fan leaf (16) radially equidistantly distributes and is arranged on flywheel fan main body (15).
5. positive pressure bundle gasing pump according to claim 3, is characterized in that: described flywheel fan main body (15) arranges rear air inlet (18), flywheel fan dististyle (17) arranges intake grill (19).
6. positive pressure bundle gasing pump according to claim 1, is characterized in that: it is corresponding that the upper rear air inlet (18) arranged of main body (15) fanned by described flywheel fan air-flow intake grill (2) and flywheel.
7. positive pressure bundle gasing pump according to claim 1, is characterized in that: arrange exhaust passage (20) in described cabinet (4), exhaust passage (20) communicate with the inner chamber of the pump housing (23).
8. positive pressure bundle gasing pump according to claim 1, it is characterized in that: described flywheel fan air-flow exhaust outlet (13) is arranged on the end of exhaust passage (20), and the opening direction of flywheel fan air-flow exhaust outlet (13) is corresponding with pump head lid (3) radiating fin outward.
9. positive pressure bundle gasing pump according to claim 1, it is characterized in that: described cabinet (4) both sides are set up in parallel 2-8 group connecting rod pallet (8), each connecting rod pallet (8) is all connected with the barrier film (11) in corresponding pump head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298416.1A CN103334909B (en) | 2013-07-16 | 2013-07-16 | Positive pressure bundle gasing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298416.1A CN103334909B (en) | 2013-07-16 | 2013-07-16 | Positive pressure bundle gasing pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103334909A CN103334909A (en) | 2013-10-02 |
| CN103334909B true CN103334909B (en) | 2015-09-02 |
Family
ID=49243115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310298416.1A Active CN103334909B (en) | 2013-07-16 | 2013-07-16 | Positive pressure bundle gasing pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103334909B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466736B (en) * | 2016-01-07 | 2018-04-24 | 淄博祥龙测控技术有限公司 | Positive pressure sampling system and the positive pressure sampling pumping plant for sampling system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125026U (en) * | 1992-07-02 | 1992-12-16 | 沈太福 | Diaphragm gas compressor |
| JP2005048616A (en) * | 2003-07-30 | 2005-02-24 | Toshiba Tec Corp | Diaphragm type reciprocating pump device |
| CN201162657Y (en) * | 2008-02-01 | 2008-12-10 | 安婷 | Diaphragm pump |
| CN202348627U (en) * | 2011-12-14 | 2012-07-25 | 淄博祥龙测控技术有限公司 | Beam tube gas delivery pump |
| CN203384015U (en) * | 2013-07-16 | 2014-01-08 | 淄博祥龙测控技术有限公司 | Positive-pressure bundle pipe gas conveying pump |
-
2013
- 2013-07-16 CN CN201310298416.1A patent/CN103334909B/en active Active
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| Publication number | Publication date |
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| CN103334909A (en) | 2013-10-02 |
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