CN219366092U - Independent subdivision formula ventilation structure of auxiliary shaft new trend - Google Patents
Independent subdivision formula ventilation structure of auxiliary shaft new trend Download PDFInfo
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- CN219366092U CN219366092U CN202320797504.5U CN202320797504U CN219366092U CN 219366092 U CN219366092 U CN 219366092U CN 202320797504 U CN202320797504 U CN 202320797504U CN 219366092 U CN219366092 U CN 219366092U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model discloses an independent sub-well fresh air ventilation structure, which comprises a heat exchange device arranged at an air return opening of a mine, wherein the heat exchange device is communicated with a fan which is fixedly connected and communicated with an independent air channel, and the independent air channel is fixedly connected and communicated with an air inlet sub-well; the outside of the air inlet auxiliary well is respectively communicated with an inlet corridor and an outlet corridor, and the independent air channel is respectively communicated with the inlet corridor, the outlet corridor and an auxiliary well lifting port of the air inlet auxiliary well; high-pressure hot air curtains are arranged at the two ends of the entrance of the well entering corridor, the entrance of the well exiting corridor and the lifting mouth of the auxiliary well. The utility model ensures the ventilation and freezing prevention of the air inlet auxiliary well in winter by fully extracting and utilizing the waste heat in the mine return air, and has simple and reliable system, high degree of automation and obvious energy-saving, safety and environmental protection benefits.
Description
Technical Field
The utility model belongs to the technical field of mine ventilation, and particularly relates to a fresh air independent subsection type ventilation structure of a secondary well.
Background
Ventilation is required to be continuously carried out in the underground mine production process, and related safety regulations prescribe that the inlet air temperature of a mine inlet air well in winter must not be lower than 2 ℃, so that the mine production needs to consider the heating of cold air entering the inlet air well in winter. In the mine ventilation process, the underground mine is generally in a constant temperature and constant humidity environment, so that the temperature in the air pumped from the underground is relatively stable, the humidity is high, the enthalpy value is high, and the underground mine is a stable and high-quality low-temperature waste heat resource.
An air inlet auxiliary well is built in the production process of part of mines in a matched mode, and the air inlet auxiliary well has the functions of taking up and down personnel and feeding and discharging materials while meeting ventilation and air inlet requirements of the mines. In the ventilation process of the mine in winter, the wellhead of the air inlet auxiliary shaft is negative pressure, cold air can easily flow into the air inlet auxiliary shaft from the entrance corridor gate, the exit corridor gate and the hoisting opening, and if the heating capacity of the air inlet auxiliary shaft is insufficient, the wellhead is frozen, so that potential safety hazards are caused to mine production. The traditional air inlet antifreezing measure is to arrange a wellhead heating chamber beside the air inlet auxiliary well, arrange several air heating units to introduce hot air with the temperature of more than 50 ℃ into the air inlet auxiliary well, and mix with cold air entering the air inlet auxiliary well to ensure that the wellhead is not frozen. However, the design not only wastes the waste heat of underground air in the mine and causes waste, but also wastes a large amount of electric energy to heat the air inlet auxiliary shaft for freezing prevention, and does not meet the requirements of energy conservation and environmental protection.
Therefore, it is necessary to design an independent sub-well fresh air ventilation structure to solve the above-mentioned technical problems.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an independent sub-well fresh air subsection type ventilation structure.
In order to achieve the purpose, the utility model provides an independent sub-well fresh air ventilation structure, which comprises a heat exchange device arranged at a mine air return port, wherein the heat exchange device is communicated with a fan, the fan is fixedly connected and communicated with an independent air channel, and the independent air channel is fixedly connected and communicated with an air inlet sub-well;
the outside of the air inlet auxiliary well is respectively communicated with a well entering corridor and a well exiting corridor, and the independent air channels are respectively communicated with the well entering corridor, the well exiting corridor and auxiliary well lifting ports of the air inlet auxiliary well;
the entrance of the well entering corridor, the entrance of the well exiting corridor and the two ends of the auxiliary well lifting mouth are all provided with high-pressure hot air curtains.
Preferably, the number of the heat exchange devices is not less than one, the fresh air outlet of each heat exchange device is communicated with at least one fan, and the air outlet of each fan is fixedly connected and communicated with the independent air duct.
Preferably, the independent air channels comprise a plurality of independent air channels, and at least one independent air channel is respectively communicated with the well outlet corridor, the well entering corridor and the auxiliary well lifting port.
Preferably, the fan is explosion-proof, has a frequency conversion function, and the rotating speed and the power of the fan are adjustable.
Preferably, the high-pressure hot air curtain is one or more of an explosion-proof electric heating air curtain, a steam hot air curtain and a hot water air curtain.
Preferably, a fresh air inlet of the heat exchange device is communicated with the outside, and the fan is communicated with a fresh air outlet of the heat exchange device; the hot air inlet of the heat exchange device is communicated with the mine air return opening, and the hot air outlet of the heat exchange device is communicated with the outside.
Compared with the prior art, the utility model has the following advantages and technical effects: when the air conditioner is used, heat exchange is carried out on fresh air and hot air in a mine through the heat exchange device, so that the heat of return air is released, the temperature of the fresh air is reduced, the heat absorption temperature of the fresh air is increased, the heated fresh air is sent into an outlet corridor, an inlet corridor and an auxiliary shaft lifting mouth through an independent air duct by a fan, the temperature of an inlet auxiliary shaft is higher than the freezing point, danger is not generated due to freezing, meanwhile, the fresh air is heated by using high-temperature and high-humidity air in the mine, an additional heating device is not required, the heating cost is reduced, and only the fan is required to push air to circulate; the high-pressure hot air curtain is respectively arranged at the entrance of the well entering corridor, the entrance of the well exiting corridor and the lifting mouth of the auxiliary well, and the hot air curtain blown out by the high-pressure hot air curtain can prevent dry and cold air from entering the air inlet auxiliary well, so that the influence of the external dry and cold air on the air inlet auxiliary well is reduced, and the heat loss caused by cold air is also reduced.
The utility model ensures the ventilation and freezing prevention of the air inlet auxiliary well in winter by fully extracting and utilizing the waste heat in the mine return air, and has simple and reliable system, high degree of automation and obvious energy-saving, safety and environmental protection benefits.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application. In the drawings:
FIG. 1 is a schematic diagram of a structure of a secondary well fresh air independent and split ventilation structure of the utility model;
in the figure: 1. a mine air return port; 2. a heat exchange device; 3. a blower; 4. an independent air duct; 5. a secondary well lifting port; 6. a high pressure air curtain; 7. a well outlet corridor; 8. an air inlet auxiliary well; 9. entering the well corridor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1, the embodiment provides an independent sub-well fresh air ventilation structure, which comprises a heat exchange device 2 arranged at a mine air return port 1, wherein the heat exchange device 2 is communicated with a fan 3, the fan 3 is fixedly connected and communicated with an independent air duct 4, and the independent air duct 4 is fixedly connected and communicated with an air inlet sub-well 8;
the outside of the air inlet auxiliary well 8 is respectively communicated with a well entering corridor 9 and a well exiting corridor 7, and the independent air duct 4 is respectively communicated with the well entering corridor 9, the well exiting corridor 7 and an auxiliary well lifting mouth 5 of the air inlet auxiliary well 8;
high-pressure hot air curtains 6 are arranged at the two ends of the entrance of the well entering corridor 9, the entrance of the well exiting corridor 7 and the auxiliary well lifting mouth 5.
When the air conditioner is used, the heat exchange device 2 is used for exchanging heat between fresh air and hot air in a mine, so that the heat of return air is released, the temperature of the fresh air is reduced, the heat absorption temperature of the fresh air is increased, the heated fresh air is fed into the well outlet corridor 7, the well inlet corridor 9 and the auxiliary well lifting opening 5 through the independent air channel 4 by the fan 3, the temperature of the air inlet auxiliary well 8 is higher than the freezing point, the danger can not be generated due to freezing, meanwhile, the fresh air is heated by using high-temperature and high-humidity air in the mine, an additional heating device is not required, the heating cost is reduced, and only the fan 3 is required to push air to circulate; the high-pressure hot air curtain 6 is respectively arranged at the gate of the well entering corridor 9, the gate of the well exiting corridor 7 and the auxiliary shaft lifting opening 5, and the hot air curtain blown out by the high-pressure hot air curtain 6 can prevent dry and cold air from entering the air inlet auxiliary shaft 8, so that the influence of external dry and cold air on the air inlet auxiliary shaft 8 is reduced, and the heat loss caused by cold air is also reduced.
According to a further optimization scheme, the number of the heat exchange devices 2 is not less than one, the fresh air outlet of each heat exchange device 2 is communicated with at least one fan 3, and the air outlet of each fan 3 is fixedly connected and communicated with an independent air duct 4. The number of the heat exchange devices 2 is not less than one, and the heat exchange devices are common heat pipe heat exchange devices, and are not repeated here, and the specific number can be set according to the heat exchange efficiency of the single heat exchange device 2 and the requirement of mine ventilation. The heat exchange device 2 can ensure that the temperature of the fresh air entering the air inlet auxiliary well 8 is not lower than 2 ℃ and the air inlet auxiliary well 8 is ensured not to be frozen.
According to a further optimization scheme, the independent air channels 4 comprise a plurality of independent air channels 4, and at least one independent air channel 4 is respectively communicated with the well outlet corridor 7, the well inlet corridor 9 and the auxiliary well lifting mouth 5. The independent air duct 4 is used for transferring the heated hot fresh air into the air inlet auxiliary shaft 8, and is respectively connected with the well outlet corridor 7, the well inlet corridor 9 and the auxiliary shaft lifting mouth 5, and the quantity of the independent air duct is selected according to ventilation requirements and is used for supplying the hot fresh air; each independent air duct 4 is provided with a heat preservation device, so that heat dissipation in the fresh air conduction process is reduced. The system is designed for full air quantity ventilation and freezing prevention, fresh air entering the air inlet auxiliary shaft 8 is heated by extracting heat in mine return air, and the air inlet auxiliary shaft 8 needs air quantity, so that the air quantity can be provided by the fan 3 and the independent air duct 4, and the fresh air temperature is ensured to be above 2 ℃.
Further optimizing scheme, fan 3 is explosion-proof type, has the frequency conversion function, and rotational speed and power of fan 3 are adjustable. The fan 3 is of an explosion-proof type, the reference standard is not lower than class I, and the fan is mainly used for sending heated fresh air into the air inlet auxiliary well 8; the fan 3 is of a variable frequency type, the rotating speed and the power of the fan are adjustable, and the air quantity and the air pressure entering the air inlet auxiliary shaft 8 are adjusted according to the requirements.
In a further optimized scheme, the high-pressure hot air curtain 6 is one or more of an explosion-proof electric hot air curtain, a steam hot air curtain and a hot water air curtain. The high-pressure hot air curtain 6 is mainly arranged at the entrance of the well entering corridor 9, the entrance of the well exiting corridor 7 and the auxiliary well lifting mouth 5, and the hot air curtain blown out by the high-pressure hot air curtain 6 can prevent dry and cold air from entering the inlet auxiliary well 8. The type and the type of the high-pressure hot air curtain 6 can be selected according to actual requirements.
In a further optimization scheme, a fresh air inlet of the heat exchange device 2 is communicated with the outside, and a fan 3 is communicated with a fresh air outlet of the heat exchange device 2; the hot air inlet of the heat exchange device 2 is communicated with the mine air return opening 1, and the hot air outlet of the heat exchange device 2 is communicated with the outside. The heat exchange device 2 sucks the hot air in the mine air return port 1 into the interior and exchanges heat with the air inlet entering from the fresh air inlet, the heated fresh air enters the independent air duct 4 under the drive of the fan 3, and the return air after heat exchange and temperature reduction is discharged from the return air outlet to the heat exchange device.
The device realizes the recycling of waste heat by recycling the heat in the mine return air, reduces the heat loss, simultaneously does not supply hot air to ensure the ventilation and freezing prevention of the air inlet auxiliary well in winter through the independent heating device, greatly reduces the energy consumption of heating, reduces the heating danger, and has the advantages of simple and reliable system, high automation degree, and obvious energy saving, safety and environmental protection benefits.
The using method comprises the following steps:
the first stage: and a heat exchange device 2 is arranged near the mine return air inlet 1, and the mine return air is introduced into the heat exchange device 2.
And a second stage: an air outlet of a fan 3 arranged at a fresh air outlet of the heat exchange device 2 is in sealing connection with an independent air duct 4. The motor rotation speed of the fan 3 can be adjusted, so that the air quantity and the air pressure of the independent air channel 4 entering the air inlet auxiliary shaft 8 can be adjusted.
And a third stage: the independent air duct 4 is in sealing connection with a well entering corridor 9, a well exiting corridor 7 and a secondary well lifting mouth 5 of an air inlet secondary well 8.
Fourth stage: the high-pressure hot air curtain 6 is arranged at the entrance of the well entering corridor 9, the entrance of the well exiting corridor 7 and the two ends of the auxiliary well lifting mouth 5 of the air inlet auxiliary well 8.
Fifth stage: the high-pressure hot air curtain 6 can be an explosion-proof electric heating air curtain, a steam hot air curtain or a hot water air curtain, the configured fan 3 is of a mining explosion-proof structure, and the high-pressure hot air curtain 6 can prevent cold air from entering the air inlet auxiliary shaft 8 from the entrance of the well entering corridor 9, the entrance of the well exiting corridor 7 and the auxiliary shaft lifting mouth 5.
Sixth stage: according to the ventilation requirement, the motor rotating speed of the fan 3 is regulated, and the fresh air heated in the heat exchange device 2 is supplied to the fresh air auxiliary shaft, so that ventilation and ventilation of the air inlet auxiliary shaft 8 are realized.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (6)
1. The utility model provides an independent subdivision formula ventilation structure of auxiliary shaft new trend, is including installing heat transfer device (2) at mine return air inlet (1), heat transfer device (2) intercommunication has fan (3), its characterized in that: the fan (3) is fixedly connected and communicated with an independent air duct (4), and the independent air duct (4) is fixedly connected and communicated with an air inlet auxiliary well (8);
the outside of the air inlet auxiliary well (8) is respectively communicated with a well entering corridor (9) and a well exiting corridor (7), and the independent air channel (4) is respectively communicated with the well entering corridor (9), the well exiting corridor (7) and an auxiliary well lifting mouth (5) of the air inlet auxiliary well (8);
the high-pressure hot air curtain (6) is arranged at the two ends of the entrance of the well entering corridor (9), the entrance of the well exiting corridor (7) and the lifting mouth (5) of the auxiliary well.
2. The auxiliary shaft fresh air independent subdivision formula ventilation structure of claim 1, wherein: the number of the heat exchange devices (2) is not less than one, the fresh air outlet of each heat exchange device (2) is communicated with at least one fan (3), and the air outlet of each fan (3) is fixedly connected and communicated with the independent air duct (4) respectively.
3. The auxiliary shaft fresh air independent subdivision formula ventilation structure of claim 1, wherein: the independent air channels (4) comprise a plurality of independent air channels (4), and the well outlet corridor (7), the well inlet corridor (9) and the auxiliary well lifting opening (5) are respectively communicated with at least one independent air channel (4).
4. The auxiliary shaft fresh air independent subdivision formula ventilation structure of claim 1, wherein: the fan (3) is explosion-proof and has a frequency conversion function, and the rotating speed and the power of the fan (3) are adjustable.
5. The auxiliary shaft fresh air independent subdivision formula ventilation structure of claim 1, wherein: the high-pressure hot air curtain (6) is one or more of an explosion-proof electric hot air curtain, a steam hot air curtain and a hot water air curtain.
6. The auxiliary shaft fresh air independent subdivision formula ventilation structure of claim 1, wherein: the fresh air inlet of the heat exchange device (2) is communicated with the outside, and the fan (3) is communicated with the heat exchange device (2)
Is communicated with a fresh air outlet; the hot air inlet of the heat exchange device (2) is communicated with the mine air return opening (1),
the hot air outlet of the heat exchange device (2) is communicated with the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320797504.5U CN219366092U (en) | 2023-04-11 | 2023-04-11 | Independent subdivision formula ventilation structure of auxiliary shaft new trend |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320797504.5U CN219366092U (en) | 2023-04-11 | 2023-04-11 | Independent subdivision formula ventilation structure of auxiliary shaft new trend |
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| Publication Number | Publication Date |
|---|---|
| CN219366092U true CN219366092U (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320797504.5U Active CN219366092U (en) | 2023-04-11 | 2023-04-11 | Independent subdivision formula ventilation structure of auxiliary shaft new trend |
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| Country | Link |
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| CN (1) | CN219366092U (en) |
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2023
- 2023-04-11 CN CN202320797504.5U patent/CN219366092U/en active Active
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