CN113294193A - Internal circulation energy-saving mine air conditioning system method - Google Patents
Internal circulation energy-saving mine air conditioning system method Download PDFInfo
- Publication number
- CN113294193A CN113294193A CN202110535659.7A CN202110535659A CN113294193A CN 113294193 A CN113294193 A CN 113294193A CN 202110535659 A CN202110535659 A CN 202110535659A CN 113294193 A CN113294193 A CN 113294193A
- Authority
- CN
- China
- Prior art keywords
- air
- mine
- temperature
- energy
- return
- 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.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 6
- 238000007710 freezing Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 4
- 239000000284 extract Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 208000001034 Frostbite Diseases 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 239000002918 waste heat Substances 0.000 description 12
- 238000005065 mining Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000011160 research Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000028571 Occupational disease Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
Abstract
An internal circulation energy-saving mine air conditioning system method, extract the return air section heat energy to be used in the air intake shaft to prevent frostbite and mine air to heat in winter, extract the return air section cold energy to be used in the mine air refrigeration in summer, make the mine air inlet temperature, the air-out temperature equal to the outside air temperature, the mine internal temperature is higher than the outside temperature winter, lower than the outside temperature summer, realize the mine heat energy or cold energy internal circulation, the energy-saving ventilation system that the mine air temperature is not influenced by the outside temperature, have the internal energy cyclic utilization of mine, the mine microclimate is relatively independent with the outside climate, the automatic control system and simple and convenient practical cost low grade advantage of the auxiliary heating or refrigeration facility, suitable for the underground mine to employ.
Description
Technical Field
The invention relates to the field of mine ventilation and air conditioning, in particular to an internal circulation energy-saving mine air conditioning system method, which is suitable for underground mine application.
Background
In order to guarantee the safe production of a mine, proper climatic conditions need to be provided for the mine, air flow entering the mine from an air inlet wellhead needs to be heated in winter according to national regulations, and the condition that pedestrians are influenced and the transportation safety is prevented from being influenced by the icing of the air inlet wellhead of the mine is prevented; in summer, the deep geothermal mine needs to cool down the mine air flow, so that the proper working temperature of the mine working face is avoided, and the influence on the working benefit, even the thermal shooting disease and the equipment safety caused by the high temperature of workers is avoided. The field of mine ventilation and air conditioning has important significance for mine safety mining, health of operating personnel, occupational disease protection and mine energy conservation.
To solve the above problems, the chinese patents are disclosed in succession: CN111412009A discloses an intelligent modularized mine air conditioning system, which comprises a water storage tank, a water level sensor, a multi-stage submersible pump, a back flush full-automatic filter, a flow guide pipe, a condenser module, a gas return pipe and a refrigeration guide pipe, so as to solve the problem that the effect of air conditioning is influenced by impurities contained in underground water; CN 111622799A discloses an underground cooling and wellhead anti-freezing system based on a split type heat pipe and a heat pump, which adopts an underground cooling device to cool in summer and adopts a heat pipe device to extract underground heat to realize wellhead anti-freezing in winter; CN209100072U discloses a "mine waste heat utilization system", which includes a mine deep layer waste heat utilization system and a mine shallow layer waste heat utilization system, so as to utilize the mine waste heat; CN109915194A discloses 'a mine air inlet preheating system and method suitable for high and cold area mines', the system includes an underground heat exchange pipe, an underground water inlet pipe, an underground water return pipe, a ground source heat pump heating unit, a heating water supply pipe, a heating water return pipe, a radiator and the like, and the preheating of the mine air inlet can be realized; CN108678794B discloses a method for preheating mine inlet air by using goaf and waste roadway ground temperature, CN107270584B discloses a distributed cooling air source heat pump system using mine low-grade heat energy, and CN200810241422.2 discloses a temperature difference type mine air-conditioning cold and heat source energy system, which realizes energy conversion and energy exchange by using temperature difference formed by high temperature in a mine and low temperature provided by a heat pump central hot water device or a refrigerator device, can realize climate regulation of a high-temperature mine and preparation of a ground central hot water system, and changes high-temperature heat damage of the mine into useful energy; CN109883226A and "research on heat transfer performance of heat pipe exchanger for recovering waste heat of mine return air" (master's academic paper, 2020) both have publications: the gravity type heat pipe is adopted to extract the waste heat of the return air flow of the mine for heating the air flow of the intake air of the mine, one side of the gravity type heat pipe is arranged at the side of the return air well, the other side of the gravity type heat pipe is arranged at the side of the intake air well, and the air flows at the two sides exchange heat through the heat pipe, so that the well mouth of the mine is prevented from freezing; CN109883226A discloses that the concrete working conditions are that the inlet temperature of return air is 13 ℃, the outlet temperature is 2 ℃, the inlet temperature of fresh air is-19 ℃ and the outlet temperature is 5.52 ℃; the actual measurement of the specific engineering is carried out in the research on the heat transfer performance of the heat pipe exchanger for recovering the waste heat of the mine return air, the operation working conditions are that the average temperature of the inlet of the return air is 14.7 ℃, the average temperature of the outlet is 10.0 ℃, the average temperature of the inlet of the fresh air is-4.3 ℃, the average temperature of the outlet is 6.0 ℃, and the temperature of the outlet of the fresh air fluctuates but is maintained above 3.6 ℃.
The above prior art has the following disadvantages:
1. high-temperature air of the return air shaft in winter is discharged to the outside or low-temperature air in summer is discharged to the outside, so that a large amount of heat energy or cold energy is wasted. In winter, external ultralow-temperature air in a alpine region enters a mine, is heated by a wellhead heating device, flows into an underground roadway system and a stope, is heated by underground original rock ground temperature and deep geothermal heat, and then flows to a return air section (return air shaft), most of high-temperature air in the return air section of the mine directly flows to the outside, and a small part of the mine is subjected to waste heat extraction and utilization in the return air shaft, wherein if Chinese patent CN109883226A discloses that the external temperature and the fresh air inlet temperature are-19 ℃, the outlet temperature of the return air section is 2 ℃ after heat extraction, the temperature difference is up to 21 ℃, and if the return air section does not extract heat, the external temperature is-19 ℃, the outlet temperature of the return air section is 13 ℃ and the temperature difference is up to 32 ℃; the research on the heat transfer performance of the heat pipe exchanger for recovering the mine return air waste heat discloses that the temperature difference between the return air outlet temperature and the natural temperature is 19.0 ℃ after a waste heat extraction measure is adopted by a return air shaft, if the waste heat extraction measure is not adopted, the temperature is 14.3 ℃, so that the temperature of the air flow flowing into the natural environment from the return air shaft in the prior art is far higher than the natural air temperature, and a large amount of air heat energy is wasted. In summer, after external high-temperature hot air enters a mine, the external high-temperature hot air is cooled to a certain degree by the shallow low-temperature surrounding rock and then is discharged to a return air shaft; the high-temperature heat damage mine is cooled by a conventional cooling system, then is heated by high-temperature surrounding rock on a mining working face and then is discharged to a return air shaft, but the annual temperature of the high-temperature heat damage mine at home and abroad and most of the return air shafts of conventional mines is about 18 ℃ according to statistics, and the external temperature is even as high as 30 ℃ in summer, so that cold energy waste is caused when low-temperature air discharged from the mine enters the high-temperature environment.
2. A comfortable working temperature cannot be provided. According to the international standard, the comfortable operation temperature of the mine is 15-20 ℃, the heating capacity of the existing wellhead heating measures is low, and the comfortable operation environment temperature cannot be provided. CN109883226A discloses that the temperature of air flow heated by a wellhead is 5.52 ℃, the final temperature of the return air shaft is 13 ℃ after further heating by a roadway, and the temperature of a mining operation surface is 5.52-13 ℃; the research on the heat transfer performance of the heat pipe exchanger for recovering the waste heat of the return air of the mine discloses that the temperature of the air flow is 3.6 ℃ after the air flow is heated by a wellhead, the final temperature of the return air well is 14.7 ℃ after the air flow is further heated by a roadway, and the temperature of a mining operation surface is 3.6-14.7 ℃. The prior art fails to provide a comfortable operating temperature for down-hole mining.
Therefore, the method for developing the internal circulation energy-saving mine air conditioning system capable of providing comfortable operation temperature for underground mining is particularly urgent.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method can provide a comfortable operation temperature internal circulation energy-saving mine air conditioning system method for underground mining.
The technical scheme adopted by the invention for solving the technical problems is as follows: the air flow heat energy of the return air section is extracted in winter to enable the air outlet temperature of the return air shaft to be equal to or not higher than the temperature of outside air, the extracted heat energy is used for preventing freezing of a mine intake shaft and heating mine air flow, the air flow cold energy of the return air section is extracted in summer to enable the air flow temperature of an outlet of the return air shaft to be equal to or not lower than the temperature of the outside air, the extracted cold energy is used for cooling the mine air flow, the mine intake air temperature and the air outlet temperature are equal to the temperature of the outside air, the air flow temperature inside the mine is higher than the temperature of the outside air in winter and lower than the temperature of the outside air in summer, and the heat energy and the cold energy of the mine air in winter are not discharged outside and are recycled in the mine.
Compared with the prior art, the invention has the following advantages and effects:
1. the internal energy of the mine is recycled, heat energy is not discharged to the outside in winter, and cold energy is not discharged to the outside in summer, so that energy is saved to the maximum extent, and comfortable weather conditions are provided for the mine.
2. The microclimate of the mine is relatively independent from the outside climate, so that the influence of the mine climate on the outside is avoided.
3. The automatic control system and the auxiliary heating or refrigerating facility are simple, convenient and practical and have low manufacturing cost.
Detailed Description
The present invention is described in further detail below.
The invention relates to an internal circulation energy-saving mine air conditioning system method, which extracts air flow heat energy of an air return section in winter to enable the air outlet temperature of a return air shaft to be equal to or not higher than the external air temperature, the extracted heat energy is used for preventing freezing of a mine air inlet shaft and heating mine air flow, extracts air flow cold energy of the air return section in summer to enable the air flow temperature of an outlet of the return air shaft to be equal to or not lower than the external air temperature, the extracted cold energy is used for cooling the mine air flow, the mine air inlet temperature and the air outlet temperature are equal to the external air temperature, the mine internal air flow temperature is higher than the external air temperature in winter and lower than the external air temperature in summer, and the mine air heat energy in winter and the mine cold energy are not discharged outside and are recycled in a mine.
The method of the invention may further be:
if the heat quantity extracted from the return air shaft in winter is insufficient or the cold quantity extracted from the return air shaft in summer is insufficient, and the requirement for submitting the comfortable climate of the mine cannot be met, an auxiliary heating or refrigerating facility is arranged at the air inlet section of the mine, and the perennial comfortable climate condition of the mine is guaranteed through auxiliary heating or refrigerating; if the heat quantity extracted from the return air shaft in winter is surplus or the cold quantity extracted from the return air shaft in summer is surplus, the surplus part is used for heating or refrigerating mine ground facilities.
After the auxiliary heating or auxiliary refrigerating facility is put into operation, heat energy or cold energy is provided for the air inlet section of the mine, the air conditioning heat energy or cold energy of the air inlet section of the mine is increased, meanwhile, the heat energy or cold energy extracted from the air return section is increased, the heat energy or cold energy extracted by the heat energy or cold energy extraction facility is increased, the demand of the heat energy or cold energy provided by the auxiliary heating or auxiliary refrigerating facility is reduced, and finally, a balance state is achieved, and the auxiliary heating or auxiliary refrigerating facility is put into operation at low power or discontinuously.
As described above, the present invention can be preferably realized. The above embodiments are only preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments, and other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be regarded as equivalent replacements within the protection scope of the present invention.
Claims (3)
1. An internal circulation energy-saving mine air conditioning system method is characterized in that air flow heat energy of an air return section is extracted in winter to enable the air outlet temperature of an air return shaft to be equal to or not higher than the external air temperature, the extracted heat energy is used for preventing freezing of a mine air inlet shaft and heating mine air flow, air flow cold energy of the air return section is extracted in summer to enable the air flow temperature of an outlet of the air return shaft to be equal to or not lower than the external air temperature, the extracted cold energy is used for cooling the mine air flow, the mine air inlet temperature and the air outlet temperature are equal to the external air temperature, the mine internal air flow temperature is higher than the external air temperature in winter and lower than the external air temperature in summer, and the mine air heat energy in winter and the mine cold energy are not discharged outside and are recycled in a mine.
2. The internal circulation energy-saving mine air conditioning system method as claimed in claim 1, wherein when the heat quantity extracted from the return air shaft in winter is insufficient or the cold quantity extracted from the return air shaft in summer is insufficient and cannot meet the requirement of the mine comfortable climate, an auxiliary heating or refrigerating facility is arranged at the air intake section of the mine, and the mine is guaranteed to be in a perennial comfortable climate condition by auxiliary heating or refrigerating; if the heat quantity extracted from the return air shaft in winter is surplus or the cold quantity extracted from the return air shaft in summer is surplus, the surplus part is used for heating or refrigerating mine ground facilities.
3. The internal circulation energy-saving mine air conditioning system method as claimed in claim 1 or 2, wherein after the auxiliary heating or auxiliary cooling facility is put into operation, heat energy or cold energy is provided to the mine air inlet section, the air conditioning heat energy or cold energy of the mine air inlet section is increased, meanwhile, the heat energy or cold energy extracted from the air return section is increased, the heat energy or cold energy extracted by the heat energy or cold energy extraction facility is increased, the demand of the heat energy or cold energy provided by the auxiliary heating or auxiliary cooling facility is reduced, and finally, an equilibrium state is reached, and the auxiliary heating or auxiliary cooling facility is put into operation at low power or intermittently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110535659.7A CN113294193A (en) | 2021-05-17 | 2021-05-17 | Internal circulation energy-saving mine air conditioning system method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110535659.7A CN113294193A (en) | 2021-05-17 | 2021-05-17 | Internal circulation energy-saving mine air conditioning system method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113294193A true CN113294193A (en) | 2021-08-24 |
Family
ID=77322436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110535659.7A Pending CN113294193A (en) | 2021-05-17 | 2021-05-17 | Internal circulation energy-saving mine air conditioning system method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113294193A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201043829Y (en) * | 2007-06-01 | 2008-04-02 | 山东泰山能源有限责任公司协庄煤矿 | Mine water source heat pump air conditioning device |
| CN101893348A (en) * | 2010-07-30 | 2010-11-24 | 山东同方能源工程技术有限公司 | Heating and cooling system using swallet waste heat by industrial and mining enterprises |
| RU140553U8 (en) * | 2013-12-05 | 2014-07-20 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пермский национальный исследовательский политехнический университет" | DEEP MINE VENTILATION SYSTEM |
| CN108506036A (en) * | 2018-03-16 | 2018-09-07 | 江南大学 | A kind of mine cooling and heating system using mine return air heat energy |
| CN110131924A (en) * | 2019-06-13 | 2019-08-16 | 山东博特瑞节能环保科技有限公司 | Return air residual heat in mine gradient utilization system |
-
2021
- 2021-05-17 CN CN202110535659.7A patent/CN113294193A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201043829Y (en) * | 2007-06-01 | 2008-04-02 | 山东泰山能源有限责任公司协庄煤矿 | Mine water source heat pump air conditioning device |
| CN101893348A (en) * | 2010-07-30 | 2010-11-24 | 山东同方能源工程技术有限公司 | Heating and cooling system using swallet waste heat by industrial and mining enterprises |
| RU140553U8 (en) * | 2013-12-05 | 2014-07-20 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пермский национальный исследовательский политехнический университет" | DEEP MINE VENTILATION SYSTEM |
| CN108506036A (en) * | 2018-03-16 | 2018-09-07 | 江南大学 | A kind of mine cooling and heating system using mine return air heat energy |
| CN110131924A (en) * | 2019-06-13 | 2019-08-16 | 山东博特瑞节能环保科技有限公司 | Return air residual heat in mine gradient utilization system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102121392B (en) | Heat-radiating, recovering and cooling system for mine | |
| CN102733840B (en) | Mine underground cooling and waste heat recycling system | |
| Feng et al. | A full air cooling and heating system based on mine water source | |
| CN108506036A (en) | A kind of mine cooling and heating system using mine return air heat energy | |
| CN104213931B (en) | A kind of mine ventilation cooling and bootstrap system | |
| CN205154229U (en) | Attached water film board heat exchanger heat sink of high temperature mine tunnel wall | |
| CN102900452A (en) | Technique for cooling deep mining area by using ground temperature of shallow goaf and waste roadway | |
| CN101329083A (en) | Technique and process for preparing sanitary hot water by recovering condensation heat of air conditioner refrigerating device with heat pump | |
| CN104236165A (en) | Solar energy storage cold and heat source wind energy tower heat pump system | |
| CN208010388U (en) | A kind of combination cooling system for the serious mine of heat evil | |
| CN1072010A (en) | A kind of heat pump heating and cooling system | |
| CN207526521U (en) | The integrated system of mine cooling and heat energy utilization | |
| CN108679879A (en) | A kind of medium and high temperature mine Cooling and Heat Source utilization system based on compression heat pump | |
| CN110566277B (en) | Device and method suitable for utilizing return air waste heat in high and cold mine | |
| CN210068227U (en) | Mine air flow cooling system based on constant-temperature layer cold water source | |
| CN113294193A (en) | Internal circulation energy-saving mine air conditioning system method | |
| CN104596007A (en) | Natural energy source central air conditioner | |
| CN104235870A (en) | Condenser dead steam waste heat recovery and energy saving device and energy saving method | |
| CN208010385U (en) | A kind of mine cooling and heating system using mine return air heat energy | |
| CN106196663B (en) | Extract underground hydro-thermal heat preservation wellbore system and pit shaft heat preserving method | |
| CN105386785B (en) | High-temperature mine tunnel wall attaches moisture film plate heat exchanger cooling system | |
| CN115682449A (en) | Heat energy extraction and utilization system for air inlet roadway of heat damage mine based on gas-liquid phase change heat transfer | |
| CN206055821U (en) | A kind of efficient shallow ground energy-air source heat pump system | |
| CN103615277B (en) | A kind of type pit cooling system | |
| RU2760610C1 (en) | Heat pump system for utilizing waste heat of subway exhaust air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |