Combined cooling structure of underground air conditioner and heat insulation air duct

Abstract

A combined cooling structure of an underground air conditioner and a heat insulation air duct comprises a main roadway and a branch roadway, the branch roadway is located on the side edge of the main roadway and communicated with the main roadway, an air conditioner chamber, a movable air conditioner and a press-in type fan are arranged in the main roadway, the air conditioner chamber is arranged on the side edge, close to the branch roadway, of the main roadway, and the movable air conditioner is placed in the air conditioner chamber. The press-in type fan is arranged at the edge of the main roadway; a press-in type air duct and a draw-out type fan are arranged in the branch roadway, one end of the draw-out type air duct and one end of the press-in type air duct are connected with the press-in type fan, the other end of the draw-out type air duct is located in the branch roadway, an air outlet of the draw-out type fan faces the roadway, one end of the draw-out type air duct is connected with the draw-out type fan, and the other end of the draw-out type air duct is located in the branch roadway. The combined structure solves the prominent problems that the working efficiency is low, the health of workers is damaged and potential safety hazards affect production due to a high-temperature environment, the combined structure is simple in construction process, equipment and facilities are simple, easy to obtain and convenient to install, high in practicability, low in investment, wide in application and good in cooling effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of underground ventilation cooling, especially to a combined cooling structure of underground air conditioner and heat insulation air duct. BACKGROUND

[0002] With the increasing depth of mine exploitation, the degree of mining mechanization is also constantly improved, and the environmental temperature of underground working point is also higher and higher, and the heat damage problem of mine becomes more and more prominent. The low work efficiency, worker health damage and safety problem caused by high temperature environment are prominent.

[0003] At present, the common high temperature mine cooling measures are: isolating heat source, strengthening ventilation, spraying cooling water or ice water on air flow, artificial refrigeration cooling and other measures. However, single measure can cool down, but the effect is not good, because the heat source in the well is difficult to avoid completely, the air volume can be guaranteed by strengthening ventilation, but it is difficult to reduce the temperature, the cooling water or ice water is easy to heat in the well, and the temperature is easy to rebound in the region limited by artificial refrigeration cooling. SUMMARY

[0004] The utility model solves the technical problem, overcomes the defects of the prior art, such as poor effect of common cooling measures, difficult to reduce temperature by ventilation, limited region by artificial refrigeration and easy to rebound, and provides a combined cooling structure of underground air conditioner and heat insulation air duct.

[0005] The utility model solves the technical problem by adopting the technical scheme, a combined cooling structure of underground air conditioner and heat insulation air duct, including main roadway and branch roadway, the branch roadway is located at the side of the main roadway and is communicated with each other, the main roadway is provided with air conditioning chamber, mobile air conditioner, pressure type fan, the air conditioning chamber is arranged at the side of the main roadway close to the branch roadway, the mobile air conditioner is placed in the air conditioning chamber, the pressure type fan is arranged at the roadway edge of the main roadway, the branch roadway is provided with pressure type air duct, extraction type fan, extraction type air duct, one end of the pressure type air duct is connected with the pressure type fan, and the other end is located in the branch roadway, the air outlet of the extraction type fan faces the main roadway, one end of the extraction type air duct is connected with the extraction type fan, and the other end is located in the branch roadway.

[0006] Further, the outlet of the pressure type air duct is not more than 10 meters away from the bottom of the branch roadway, and the inlet of the extraction type air duct should be more than 5 meters behind the outlet of the pressure type air duct.

[0007] Further, the pressure type air duct is a flexible air duct and has heat insulation function, and the extraction type air duct is a rigid air duct.

[0008] Further, the pressure-in air duct comprises a pressure-in inner air duct, a pressure-in outer air duct and polystyrene foam, the anchor rod is arranged on the sidewall of the branch roadway, the lifting ring and the suspension steel wire are arranged on the anchor rod, and the pressure-in air duct is hung on the anchor rod through the suspension steel wire and the lifting ring.

[0009] Further, the low-temperature fresh air after cooling of the mobile air conditioner enters the pressure-in air duct and then enters the branch roadway, becomes dirty air after ventilation operation and heat exchange in the branch roadway, is sucked into the pressure-out air duct by the pressure-out air fan, is discharged into the branch roadway, and is then discharged into the main roadway through the branch roadway.

[0010] The utility model has the following beneficial technical effects:

[0011] The fresh air is cooled by the mobile air conditioner before entering the pressure-in air fan from the main roadway, is cooled by the pressure-in air duct, is not exchanged with the outside world, is ventilated in the branch roadway, the dirty air is discharged from the branch roadway through the pressure-out air duct, and the operation surface is cooled. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the whole structure schematic diagram of a combined cooling structure of a downhole air conditioner and a heat insulation air duct embodiment of the utility model;

[0013] Figure 2 is the enlarged view of the section of a combined cooling structure of a downhole air conditioner and a heat insulation air duct embodiment of the utility model;

[0014] Figure 3 is the pressure-in air duct section enlarged view of a combined cooling structure of a downhole air conditioner and a heat insulation air duct embodiment of the utility model.

[0015] MARKS OF THE DRAWINGS:

[0016] 1, main roadway; 2, branch roadway; 3, air conditioner chamber; 4, mobile air conditioner; 5, pressure-in air fan; 6, pressure-in air duct; 7, pressure-out air fan; 8, pressure-out air duct; 9, fresh air; 10, dirty air; 11, pressure-in inner air duct; 12, pressure-in outer air duct; 13, polystyrene foam; 14, lifting ring; 15, suspension steel wire; 16, anchor rod. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings and embodiments.

[0018] Refer toFigure 1 This embodiment includes a main tunnel 1 and a branch tunnel 2, wherein the branch tunnel 2 is vertically located on the right side of the main tunnel 1 and is interconnected with it.

[0019] An air conditioning chamber 3 is located on the lower right side of the main roadway 1. A portable air conditioner 4 is installed in the air conditioning chamber 3. A forced-in fan 5 is installed at the edge of the main roadway 1. A forced-in air duct 6, an exhaust fan 7, and an exhaust air duct 8 are installed in the branch roadway 2. The forced-in air duct 6 is L-shaped. One end of the short side of the forced-in air duct 6 is connected to the forced-in fan 5, and the other end is located in the branch roadway 2. The air outlet of the exhaust fan 7 faces the main roadway 1. One end of the exhaust air duct 8 is connected to the exhaust fan 7, and the other end is located in the branch roadway 2. The forced-in air duct 6 and the exhaust air duct 8 are arranged parallel to each other.

[0020] The outlets of both the forced ventilation duct 6 and the exhaust ventilation duct 8 face the bottom of the branch roadway 2. The outlet of the forced ventilation duct 6 is no more than 10 meters away from the working face, and the inlet of the exhaust ventilation duct 8 should lag behind the outlet of the forced ventilation duct 6 by more than 5 meters.

[0021] Reference Figure 2 and Figure 3 The forced-in ventilation duct 6 is a flexible duct with thermal insulation. It includes an inner forced-in ventilation duct 11, an outer forced-in ventilation duct 12, and polystyrene foam 13. Anchor bolts 16 are located on the sidewalls of the branch tunnel 2. Each anchor bolt 16 has a lifting ring 14 and a suspension wire 15. The forced-in ventilation duct 6 is suspended from the anchor bolts 16 via the suspension wire 15 and the lifting ring 14. The polystyrene foam filling material between the inner and outer forced-in ventilation ducts serves as thermal insulation.

[0022] The exhaust duct 8 is a rigid duct and does not require heat insulation. The exhaust duct 8 adopts the same suspension method as the pressurized duct 6.

[0023] Fresh air 9 in the main tunnel 1 is cooled by a portable air conditioner 4 placed in the air conditioning chamber 3 and then enters the forced air duct 6 through a forced air blower 5. The low-temperature fresh air 9 enters the forced air duct 6 and, due to its heat insulation function, does not exchange heat with the outside, thus maintaining a low temperature before entering the branch tunnel 2. After ventilation and heat exchange in the branch tunnel 2, the fresh air 9 becomes polluted air 10 and is then drawn into the exhaust air duct 8 by the exhaust fan 7. The polluted air 10 is discharged into the branch tunnel 2 through the exhaust air duct 8 and then into the main tunnel 1 through the branch tunnel 2.

[0024] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A combined cooling structure of a downhole air conditioner and a heat-insulating air duct, characterized in that, The utility model provides a kind of air conditioning system for mine, including main roadway (1) and branch roadway (2), the branch roadway (2) is located in the side of the main roadway (1) and intercommunicate, the main roadway (1) is provided with air conditioning chamber (3), mobile air conditioner (4), push-in fan (5), the air conditioning chamber (3) is arranged in main roadway (1) close to the side of the branch roadway (2), the mobile air conditioner (4) is placed in the air conditioning chamber (3), the push-in fan (5) is arranged at the roadway edge of the main roadway (1);The branch roadway (2) is provided with push-in air duct (6), pull-out fan (7), pull-out air duct (8), one end of the push-in air duct (6) is connected with push-in fan (5), the other end is located in the branch roadway (2), the air outlet of pull-out fan (7) is towards the main roadway (1), one end of the pull-out air duct (8) is connected pull-out fan (7), the other end is located in the branch roadway (2).

2. The combined cooling structure of the downhole air conditioner and the insulated air duct according to claim 1, characterized in that, The outlet of the push-in air duct (6) is not more than 10 meters from the bottom of the branch roadway (2), and the inlet of the pull-out air duct (8) should be delayed more than 5 meters from the outlet of the push-in air duct (6).

3. The combined cooling structure of the downhole air conditioner and the insulated air duct according to claim 1, characterized in that, The push-in air duct (6) is a flexible air duct and has a heat insulation function, and the pull-out air duct (8) is a rigid air duct.

4. The combined cooling structure of the downhole air conditioner and the insulated air duct according to claim 1, characterized in that, The push-in air duct (6) includes a push-in inner air duct (11), a push-in outer air duct (12), and polystyrene foam (13). The side wall of the branch roadway (2) has an anchor rod (16). The anchor rod (16) is provided with a lifting ring (14) and a suspension wire (15). The push-in air duct (6) is hung on the anchor rod (16) by the suspension wire (15) and the lifting ring (14).

5. The combined cooling structure of the air conditioner and the insulated air duct according to claim 1, wherein The fresh air (9) after cooling by the mobile air conditioner (4) enters the push-in air duct (6) through the push-in fan (5) and then enters the branch roadway (2). After ventilation and heat exchange in the branch roadway (2), the fresh air (9) becomes dirty air (10) and is sucked into the pull-out air duct (8) by the pull-out fan (7) and then is discharged into the branch roadway (2). The dirty air (10) is discharged into the main roadway (1) through the branch roadway (2).

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