CN104005782A - Safety protection system for pneumatic refrigeration device for mine - Google Patents
Safety protection system for pneumatic refrigeration device for mine Download PDFInfo
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- CN104005782A CN104005782A CN201410255138.6A CN201410255138A CN104005782A CN 104005782 A CN104005782 A CN 104005782A CN 201410255138 A CN201410255138 A CN 201410255138A CN 104005782 A CN104005782 A CN 104005782A
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Abstract
The invention provides a safety protection system for a pneumatic refrigeration device for a mine. When the air suction pressure, the exhaust pressure and the exhaust temperature of a refrigeration compressor exceed the standards, the safety protection system enables a machine unit to stop and give alarm. The safety protection system comprises an air source, a triple element, a main air path pipeline, a two-position two-way pneumatically-operated directional valve, an air motor and a safety protection device, wherein the air source provides compressed air. The compressed air is divided into two paths including a main air path and a control air path through the triple element; in the main air path, the compressed air is supplied to the air motor through the main air path pipeline and the two-position two-way pneumatically-operated directional valve; in the control air path, a main switch is used for controlling the opening or the closing of the whole system; and in addition, the high-temperature protection, the high-pressure protection and the low-pressure protection of the pneumatic refrigeration device for the mine are realized through the safety protection device.
Description
Technical field
The present invention relates to a kind of safety system of mine pneumatic refrigerating plant, can be used for the safeguard protection of the pneumatic ice-reserving refrigeration unit that underground refuge chamber or mine escape capsule use, belong to mining safety and HVAC refrigerating field.
Background technology
The coal mine refuge chamber cool-down method using at present mainly contains electric air conditioner cooling, the cooling of electronic ice storage air conditioner, liquid carbon dioxide cooling, phase change material temperature lowering and aeration-cooling etc. five kinds.
Wherein driven by power vapour compression refrigeration is all used in electric air conditioner cooling and the cooling of electronic ice storage air conditioner, advantage is that refrigeration work consumption is large, efficiency is high, shortcoming is in down-hole particularly in the particular surroundings of refuge chamber, use electric power to bring on the one hand the problem of capacitance of storage, aspect anti-explosion safety, have hidden danger on the one hand.Liquid carbon dioxide cooling, phase change material temperature lowering and aeration-cooling three kinds of method refrigeration work consumptions are significantly less than vapour compression refrigeration, there is potential safety hazard in liquid carbon dioxide cooling wherein because storage pressure is higher, phase change material temperature lowering has strict requirement and the coefficient of heat transfer very low to chamber temperature, aeration-coolingly need to guarantee that air line is normally used under disaster scenarios it.
Vapor-compression refrigerant cycle compare liquid carbon dioxide cooling, phase change material temperature lowering and aeration-coolingly have that refrigeration work consumption is large, efficiency is high, the advantage such as little influenced by ambient temperature, if driven by power vapour compression refrigeration is improved to pneumatic actuation vapour compression refrigeration, to greatly reduce potential safety hazard, simplify the configuration in the chambers such as battery.
Thus, in prior art, how further to make pneumatic refrigerating plant there is complete safety protection function and become a research topic.Applicant through lucubrate for many years and repeatedly tackling key problem develop this programme precise control, react safety system fast.
Summary of the invention
The object of this invention is to provide a kind of simple in structure, precise control, a kind of safety system of mine pneumatic refrigerating plant fast.
A kind of mine pneumatic refrigerating plant safety system provided by the invention, it is characterized in that, comprise source of the gas, three linked piece, main gas circuit pipeline, 2/2-way Pneumatic reversal valve, gas motor, safety guard, wherein, described source of the gas provides compressed air, compressed air is separated into main gas circuit and controls gas circuit two-way through three linked piece, in main gas circuit, compressed air is gas motor air feed through main gas circuit pipeline and described 2/2-way Pneumatic reversal valve, in controlling gas circuit, use main switch control the unlatching of whole system or close, and by described safety guard, realize the high temperature protection of mine pneumatic refrigerating plant, high voltage protective, low-voltage variation.
According to above-mentioned mine pneumatic refrigerating plant safety system; it is characterized in that; described safety guard is comprised of temperature-sensing valve, pressure valve and pipeline thereof; delivery temperature, pressure at expulsion and pressure of inspiration(Pi) for detection of the refrigeration compressor in described pneumatic refrigerating plant; when described refrigeration compressor delivery temperature or pressure at expulsion or pressure of inspiration(Pi) transfinite, promote described 2/2-way Pneumatic reversal valve 4 commutations and make compressor emergency shutdown and report to the police.
According to above-mentioned mine pneumatic refrigerating plant safety system; it is characterized in that; in described refrigeration compressor delivery temperature or pressure at expulsion or pressure of inspiration(Pi) transfinites and after unit autostop, workman ascertains the reason and fixes a breakdown while making system reset, by reset switch, make system reset.
According to above-mentioned mine pneumatic refrigerating plant safety system, it is characterized in that, in main gas circuit, on described gas motor, be also connected with choke valve, in order to regulate the rotating speed of described gas motor.
Concrete, mine pneumatic refrigerating plant safety system of the present invention comprises source of the gas 1, three linked piece 2, main gas circuit pipeline 3,2/2-way Pneumatic reversal valve 4, gas motor 5, choke valve 6, safety guard 7, controls gas circuit pipeline 8, main switch 9, reset switch 10 etc.
Mine pneumatic refrigerating plant safety system of the present invention, provides compressed air by source of the gas 1, and compressed air filters decompression through three linked piece 2 and adds and be divided into two-way after mist of oil: main gas circuit with control gas circuit.In main gas circuit, compressed air, through main gas circuit pipeline 3,2/2-way Pneumatic reversal valve 4, is gas motor 5 air feed, and wherein choke valve 6 is in order to regulate the rotating speed of gas motor 5.Control in gas circuit and control the unlatching of whole system or close by main switch 9.By safety guard 7, realize high temperature protection, high voltage protective, the low-voltage variation of mine pneumatic refrigerating plant.Described safety guard 7 is comprised of temperature-sensing valve, pressure valve and pipeline thereof; can detect refrigeration compressor delivery temperature, pressure at expulsion, pressure of inspiration(Pi); when refrigeration compressor delivery temperature or pressure at expulsion or pressure of inspiration(Pi) transfinite, promote 4 commutations of 2/2-way Pneumatic reversal valve unit can be shut down and report to the police.Refrigeration compressor air suction pressure or pressure at expulsion or delivery temperature exceed standard after unit autostop, and workman ascertains the reason and fixes a breakdown while making system reset, by reset switch 10, makes system reset.
Technique effect: mine pneumatic refrigerating plant safety system of the present invention; by safety guard 7, detect pressure of inspiration(Pi), pressure at expulsion, the delivery temperature of controlling refrigeration compressor; while exceeding standard, promote 4 actions of Pneumatic-control type 2/2-way reversal valve; unit can be shut down and report to the police, realized and utilized pneumatics to realize the safety protection functions such as refrigeration unit low-voltage variation, high voltage protective, high temperature protection.
Mine pneumatic refrigerating plant safety system of the present invention, simple in structure, precise control, reaction speed are fast, have practicality widely.
Accompanying drawing explanation
Fig. 1 is exemplary construction schematic diagram of the present invention.
In figure: 1-source of the gas; 2-three linked piece; The main gas circuit pipeline of 3-; 4-2/2-way Pneumatic reversal valve; 5-gas motor; 6-choke valve; 7-safety guard; 8-controls gas circuit pipeline; 9-main switch; 10-reset switch.
The specific embodiment
The present invention is made to detailed description with reference to the accompanying drawings in conjunction with the embodiments.
As shown in Figure 1, mine pneumatic refrigerating plant safety system of the present invention comprises source of the gas 1, three linked piece 2, main gas circuit pipeline 3,2/2-way Pneumatic reversal valve 4, gas motor 5, choke valve 6, safety guard 7, controls gas circuit pipeline 8, main switch 9, reset switch 10 etc.
Described main gas circuit is comprised of source of the gas 1, three linked piece 2, main gas circuit pipeline 3,2/2-way Pneumatic reversal valve 4, gas motor 5, choke valve 6.Described control gas circuit is comprised of 2/2-way Pneumatic reversal valve 4, safety guard 7, control gas circuit pipeline 8, main switch 9, reset switch 10.
Described source of the gas 1 provides compressed air, and compressed air filters decompression through three linked piece 2 and adds and be divided into two-way after mist of oil: main gas circuit with control gas circuit.In main gas circuit, compressed air, through main gas circuit pipeline 3,2/2-way Pneumatic reversal valve 4, is gas motor 5 air feed, and wherein choke valve 6 is in order to regulate the rotating speed of gas motor 5.Control in gas circuit and control the unlatching of whole system or close by main switch 9.By safety guard 7, realize high temperature protection, high voltage protective, the low-voltage variation of mine pneumatic refrigerating plant.The described safety guard 7 that passes through is comprised of temperature-sensing valve, pressure valve and pipeline thereof; can detect refrigeration compressor delivery temperature, pressure at expulsion, pressure of inspiration(Pi); when refrigeration compressor delivery temperature or pressure at expulsion or pressure of inspiration(Pi) transfinite, promote 4 commutations of 2/2-way Pneumatic reversal valve unit can be shut down and report to the police.Refrigeration compressor air suction pressure or pressure at expulsion or delivery temperature exceed standard after unit autostop, and workman ascertains the reason and fixes a breakdown while making system reset, by reset switch 10, makes system reset.
According to embodiment, the present invention has been made to detailed description above, yet, described description is exemplary, the present invention is not limited only in embodiment, those skilled in the art can instruct according to the present invention completely and it is made to various forms of replacements or change, do not departing under the prerequisite of aim of the present invention and spirit, every various changes that the present invention is made and modification are all considered as the content that the present invention is contained, within all falling into the scope of claims.
Claims (4)
1. a mine pneumatic refrigerating plant safety system, it is characterized in that, comprise source of the gas, three linked piece, main gas circuit pipeline, 2/2-way Pneumatic reversal valve, gas motor, safety guard, wherein, described source of the gas provides compressed air, compressed air is separated into main gas circuit and controls gas circuit two-way through three linked piece, in main gas circuit, compressed air is gas motor air feed through main gas circuit pipeline and described 2/2-way Pneumatic reversal valve, in controlling gas circuit, use main switch control the unlatching of whole system or close, and by described safety guard, realize the high temperature protection of mine pneumatic refrigerating plant, high voltage protective, low-voltage variation.
2. mine pneumatic refrigerating plant safety system as claimed in claim 1; it is characterized in that; described safety guard is comprised of temperature-sensing valve, pressure valve and pipeline thereof; delivery temperature, pressure at expulsion and pressure of inspiration(Pi) for detection of the refrigeration compressor in described pneumatic refrigerating plant; when described refrigeration compressor delivery temperature or pressure at expulsion or pressure of inspiration(Pi) transfinite, promote described 2/2-way Pneumatic reversal valve 4 commutations and make compressor emergency shutdown and report to the police.
3. mine pneumatic refrigerating plant safety system as claimed in claim 2; it is characterized in that; in described refrigeration compressor delivery temperature or pressure at expulsion or pressure of inspiration(Pi) transfinites and after unit autostop, workman ascertains the reason and fixes a breakdown while making system reset, by reset switch, make system reset.
4. mine pneumatic refrigerating plant safety system as claimed in claim 1, is characterized in that, in main gas circuit, on described gas motor, is also connected with choke valve, in order to regulate the rotating speed of described gas motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255138.6A CN104005782B (en) | 2014-06-10 | 2014-06-10 | A kind of mine pneumatic refrigerating plant safety system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255138.6A CN104005782B (en) | 2014-06-10 | 2014-06-10 | A kind of mine pneumatic refrigerating plant safety system |
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| Publication Number | Publication Date |
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| CN104005782A true CN104005782A (en) | 2014-08-27 |
| CN104005782B CN104005782B (en) | 2016-06-08 |
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| CN201410255138.6A Active CN104005782B (en) | 2014-06-10 | 2014-06-10 | A kind of mine pneumatic refrigerating plant safety system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848600A (en) * | 2015-06-08 | 2015-08-19 | 山东新华医疗器械股份有限公司 | Refrigeration compressor protecting system of freeze dryer |
| CN105420757A (en) * | 2015-12-21 | 2016-03-23 | 云南云铝涌鑫铝业有限公司 | Cooling device for prebaked cell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1073348A (en) * | 1996-08-28 | 1998-03-17 | Sanyo Electric Co Ltd | Safety device for refrigerating machine |
| CN101504176A (en) * | 2009-03-10 | 2009-08-12 | 北京科技大学 | Air conditioning system used for removable emergency escape capsule for coal mine |
| CN202152688U (en) * | 2011-07-04 | 2012-02-29 | 阿尔西制冷工程技术（北京）有限公司 | Cool storage system for escape capsule |
| CN102692091A (en) * | 2012-06-13 | 2012-09-26 | 中煤科工集团重庆研究院 | Mining high-pressure modularization underground concentration refrigerating device and system |
-
2014
- 2014-06-10 CN CN201410255138.6A patent/CN104005782B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1073348A (en) * | 1996-08-28 | 1998-03-17 | Sanyo Electric Co Ltd | Safety device for refrigerating machine |
| CN101504176A (en) * | 2009-03-10 | 2009-08-12 | 北京科技大学 | Air conditioning system used for removable emergency escape capsule for coal mine |
| CN202152688U (en) * | 2011-07-04 | 2012-02-29 | 阿尔西制冷工程技术（北京）有限公司 | Cool storage system for escape capsule |
| CN102692091A (en) * | 2012-06-13 | 2012-09-26 | 中煤科工集团重庆研究院 | Mining high-pressure modularization underground concentration refrigerating device and system |
Non-Patent Citations (1)
| Title |
|---|
| 贺超等: "矿用救生舱气动制冷蓄冰空调技术", 《煤炭科学技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848600A (en) * | 2015-06-08 | 2015-08-19 | 山东新华医疗器械股份有限公司 | Refrigeration compressor protecting system of freeze dryer |
| CN105420757A (en) * | 2015-12-21 | 2016-03-23 | 云南云铝涌鑫铝业有限公司 | Cooling device for prebaked cell |
| CN105420757B (en) * | 2015-12-21 | 2018-06-08 | 云南云铝涌鑫铝业有限公司 | For the heat sink of pre-baking tank |
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| Publication number | Publication date |
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| CN104005782B (en) | 2016-06-08 |
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