CN210858775U - A hybrid construction aeration cooling system for extra long tunnel - Google Patents
A hybrid construction aeration cooling system for extra long tunnel Download PDFInfo
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- CN210858775U CN210858775U CN201921454316.2U CN201921454316U CN210858775U CN 210858775 U CN210858775 U CN 210858775U CN 201921454316 U CN201921454316 U CN 201921454316U CN 210858775 U CN210858775 U CN 210858775U
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Abstract
The utility model relates to a hybrid construction aeration cooling system for extra long tunnel belongs to tunnel engineering construction technical field, the utility model discloses a system, include: the cold water spraying system is used for cooling the air of a continuous area section in the tunnel and is arranged in the tunnel; the first air blower is positioned on one side inside the tunnel of the cold water spraying system, an air inlet of the first air blower faces the cold water spraying system, and an air outlet of the first air blower faces a heat source; and the air inlet of the second air blower faces the heat source, and the air outlet of the second air blower is connected with the outside of the tunnel through a pipeline. The utility model provides a mist cooling system for construction of extra long tunnel can arrange in a flexible way in the construction of tunnel of growing up and occupy lessly to tunnel section space, provides good operational environment for the workman under the high temperature environment, has ensured operation personnel's health and operating mass with rated load.
Description
Technical Field
The utility model belongs to the technical field of the tunnel engineering construction, concretely relates to hybrid construction aeration cooling system for extra long tunnel.
Background
In tunnel construction, heat is generated by combination of terrestrial heat, personnel movement, mechanical equipment and materials, and the temperature of the working environment rises. The high temperature in the hole not only harms the health of constructors and reduces the working efficiency, but also brings adverse effects to the operation of construction equipment and the performance of engineering materials. Especially for the extra-long tunnel, the working face is gradually far away from the opening in the construction process and can reach several kilometers, and natural heat exchange is difficult to form between the working face and the outside, so that the artificial cooling is particularly important in the construction process of the extra-long tunnel with high terrestrial heat.
At present, tunnel cooling is mainly combined by adopting an enhanced ventilation technology and a local refrigeration technology, for a high-temperature area, the temperature of air at a hole is very high, the pressed air is high-temperature air, the enhanced ventilation is also combined with an air cooling device, for example, a common ventilation system for setting an air conditioner or ice blocks for cooling is used for blowing cold air into the hole and enhancing the convection of the air in the hole to discharge the heat in the hole, so that the temperature in the hole is reduced, and the tunnel cooling device comprises two ideas of communicating the refrigeration device with a hole fan and communicating the refrigeration device with a hole air pipe.
In the process of implementing the embodiments of the present invention, the inventor finds that at least the following defects exist in the background art:
to the entrance to a cave cooling mode, there is the problem that the hole interior air pipe heaies up, and hole interior air pipe heat sink, there is the cooling cost height, probably leads to amount of wind and wind pressure loss, the big problem of the on-the-spot ventilation management degree of difficulty.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hybrid construction aeration cooling system for extra long tunnel, aim at solves above-mentioned problem, solves to the entrance to a cave cooling mode, has the problem that the wind pipe heaies up in the hole, and the wind pipe heat sink in the hole, and there is the cooling with high costs, probably leads to amount of wind and wind pressure loss, the big problem of the on-the-spot ventilation management degree of difficulty.
In order to achieve the above object, the utility model adopts the following technical scheme:
a hybrid construction aeration cooling system for an extra-long tunnel, comprising:
the cold water spraying system is used for cooling the air of a continuous area section in the tunnel and is arranged in the tunnel;
the first air blower is positioned on one side inside the tunnel of the cold water spraying system, an air inlet of the first air blower faces the cold water spraying system, and an air outlet of the first air blower faces a heat source;
and the air inlet of the second air blower faces the heat source, and the air outlet of the second air blower is connected with the outside of the tunnel through a pipeline.
The cold water spraying system comprises a cold water tank, a high-pressure pump room, a spraying system and a cold water heat-preservation pipe, wherein the cold water tank is arranged outside the tunnel, the spraying system is arranged in the tunnel and distributed in a continuous area section in the tunnel, and the cold water tank is connected with the spraying system through the high-pressure pump room and the cold water heat-preservation pipe.
The spraying system comprises a plurality of spraying heads, and the plurality of spraying heads are spirally arranged and distributed in a continuous area section in the tunnel.
The cold water spraying system is a spray type cold water spraying system.
One side of the air outlet of the first air feeder is provided with a heat preservation air supply pipe, one end of the heat preservation air supply pipe is connected with the air outlet of the first air feeder, and the outlet of the other end of the heat preservation air supply pipe faces to a heat source.
The second air feeder is arranged in the middle between the air outlet of the first air feeder and the heat preservation air supply pipe.
And an air inlet of the second air blower is positioned at the upper end of the heat source.
And the air outlet of the second air blower is positioned at the upper end outside the tunnel opening outside the tunnel.
The cold water spraying system is used for cooling air in a continuous area section in the tunnel.
The beneficial effects of the utility model are that, the utility model provides a mist cooling system for construction of extra long tunnel can arrange in a flexible way in the construction of tunnel of growing up, occupies lessly tunnel section space, provides good operational environment for the workman under the high temperature environment, has ensured operation personnel's health and operating mass with rated load.
Drawings
Fig. 1 is a schematic view of an overall structure of an embodiment of the hybrid construction aeration cooling system for an extra-long tunnel of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the hybrid construction aeration cooling system for an extra-long tunnel of the present invention.
Labeled as: 1. a suction type exhaust system; 2. a cold water spray system; 3. an aspiration exhaust system; 4. a first blower; 5. a heat preservation blast pipe; 6. a second blower; 7. a pipeline; 8. a spray system; 9. a high-pressure pump room; 10. a cold water tank; 11. a cold water thermal insulation pipe.
Detailed Description
The hybrid construction aeration cooling system for an extra-long tunnel according to the embodiments of the present invention will be described in detail through several specific embodiments.
Example 1
Please refer to fig. 1 and fig. 2, which illustrate an overall schematic diagram of a hybrid-type construction aeration cooling system for an extra-long tunnel according to the present invention, the hybrid-type construction aeration cooling system for an extra-long tunnel includes:
the cold water spraying system 2 is used for cooling the air in a continuous area section in the tunnel, and the cold water spraying system 2 is arranged in the tunnel;
the first air blower 4 is positioned on one side of the inside of the tunnel of the cold water spraying system 2, an air inlet of the first air blower 4 faces the cold water spraying system 2, and an air outlet of the first air blower 4 faces a heat source;
and an air inlet of the second air blower 6 faces a heat source, and an air outlet of the second air blower 6 is connected with the outside of the tunnel through a pipeline.
In the embodiment, for the convenient and fast, the effectual rapid cooling to near face air of economy, the utility model discloses based on extra long tunnel hybrid construction ventilation technology, combine the hole cold water spray cooling, provide an extra long tunnel hybrid construction aeration cooling system. Based on the water cooling principle, cold water spraying is combined in tunnel mixed construction ventilation to cool air in a hole, and then cold air is pressed into an operation area, so that the tunnel combined type air cooling system is convenient, rapid, economical and applicable.
The first air blower 4 and the second air blower 6 exchange air outside the tunnel and hot air generated by a heat source in the tunnel, the specific exchange process is that the second air blower 6 pumps the hot air near the heat source out of the tunnel through a pipeline 7, negative pressure can be formed in the tunnel at the moment, the air outside the tunnel continuously enters the tunnel, the air can pass through a tunnel internal cooling section with a cold water spraying system 2 after entering the tunnel, the air is cooled by water, the first air blower 4 pressurizes the air cooled by the water and conveys the air to the heat source for cooling, the air heated by the heat source is pumped out of the tunnel by the second air blower 6, and therefore the air can circulate outside and inside the tunnel.
Example 2
Further, please refer to fig. 2, the utility model relates to a another embodiment of hybrid construction aeration cooling system for extra long tunnel, cold water spraying system 2 includes cold water tank 10, high-pressure pump room 9, spraying system 8 and cold water insulating tube 11, and cold water tank 10 establishes outside the tunnel, and spraying system 8 establishes in the tunnel and distributes a continuous region section in the tunnel, and cold water tank 10 is through high-pressure pump room 9 and connect spraying system 8 through cold water insulating tube 11.
In the above-mentioned embodiment, cold water tank 10 is established outside the tunnel, spraying system 8 is established in the tunnel, cold water tank 10 provides cold water for spraying system 8, spraying system 8 uses the shower to cool down the air in the tunnel, spraying system 8's shower can rise for the temperature behind the air cooling, the higher shower of temperature carries cold water tank 10 again through high-pressure pump room 9, cold water tank 10 cools down the higher shower of temperature, the temperature distributes outside the tunnel, cold water tank 10 carries the water of cooling for spraying system 8 again through high-pressure pump room 9, form water cycle to the water of sending into spraying system 8 in proper order.
Example 3
Further, referring to fig. 1 and fig. 2, in another embodiment of the hybrid construction aeration cooling system for an extra-long tunnel of the present invention, the spraying system 8 includes a plurality of spraying heads, and the plurality of spraying heads are spirally arranged and distributed in a continuous area section in the tunnel.
In the above embodiment, the spraying system 8 is composed of a plurality of spraying heads, and the plurality of spraying heads are spirally arranged and distributed in the tunnel, so that the air passing through the tunnel can be cooled in all directions.
Example 4
Further, referring to fig. 1 and 2, in another embodiment of the hybrid construction aeration cooling system for an extra-long tunnel of the present invention, the cold water spraying system 2 is an atomizing cold water spraying system 2.
In the above embodiment, in order to increase the efficiency of the cold water spraying system 2 for cooling the air, the spraying system is set as the spray type cold water spraying system 2, the contact area between the water and the air is increased, and the efficiency of cooling the air by the spraying water can be further improved.
Example 5
Further, referring to fig. 1 and 2, in another embodiment of the hybrid construction aeration cooling system for an extra-long tunnel of the present invention, a heat preservation air supply pipe 5 is disposed at one side of the air outlet of the first air blower 4, one end of the heat preservation air supply pipe 5 is connected to the air outlet of the first air blower 4, and the outlet of the other end faces the heat source.
In the above embodiment, the temperature of the air cooled by the cold water spray system 2 in the tunnel is lower than that of the air at other positions in the tunnel, and in order to prevent the air cooled by the cold water spray system 2 from generating heat exchange with the air at other positions, the heat preservation air supply pipe 5 is arranged on one side of the air outlet of the first air blower 4, and the heat preservation air supply pipe 5 supplies the cold air to the heat source, so that the cooling effect of the cold air on the heat source can be improved.
Example 6
Further, referring to fig. 1 and 2, in another embodiment of the hybrid construction aeration cooling system for an extra-long tunnel of the present invention, the second blower 6 is disposed in the middle between the air outlet of the first blower 4 and the heat preservation air supply pipe 5.
In the above embodiment, the second air blower 6 is disposed between the first air blower 4 and the air outlet of the first air blower 4, and is preferably located away from the heat source, while the first air blower 4 is kept at a sufficient distance to ensure heat exchange between the cool air delivered by the first air blower 4 and the hot air sucked by the second air blower 6.
Example 7
Further, referring to fig. 1 and 2, in another embodiment of the hybrid construction aeration cooling system for an extra-long tunnel of the present invention, an air inlet of the second blower 6 is located at an upper end of the heat source.
In the above embodiment, the air inlet of the second blower 6 is located at the upper end of the heat source according to the light amount of the hot air, so that the hot air generated by cooling the heat source can be effectively extracted.
Example 8
Further, referring to fig. 1 and fig. 2, in another embodiment of the hybrid construction aeration cooling system for an extra-long tunnel of the present invention, the air outlet of the second blower 6 is located at the upper end outside the tunnel mouth outside the tunnel.
In the above embodiment, since the air is drawn out of the tunnel by the air inlet of the second air blower 6 to generate negative pressure, cold air is continuously sucked into the inlet of the tunnel, and if the air outlet of the second air blower 6 is arranged at the tunnel opening, the hot air delivered by the second air blower 6 enters the tunnel again, so that the air outlet of the second air blower 6 is arranged at the upper end outside the tunnel opening, and the problem that the hot air enters the tunnel again can be avoided.
In fig. 1, the suction type exhaust system 1 is composed of a first blower 4 and a heat preservation air supply pipe 5, and the suction type exhaust system 3 is composed of a second blower 6 and a pipeline 7.
Example 9
Further, please refer to fig. 1 and 2, another embodiment of the hybrid ventilation cooling system for very long tunnels of the present invention is that the cold water spraying system is used to cool the air in a continuous area section in the tunnel.
In the above embodiment, the cold water spraying system cools a continuous section, which effectively ensures that the air entering the first blower 4 is completely cooled by the cold water spraying system.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, descriptions related to "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Technical solutions between various embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.
Claims (9)
1. A hybrid construction aeration cooling system for an extra-long tunnel, comprising:
the cold water spraying system is arranged in the tunnel;
the first air blower (4), the first air blower (4) is positioned on one side of the inside of the tunnel of the cold water spraying system, an air inlet of the first air blower (4) faces the cold water spraying system, and an air outlet of the first air blower (4) faces a heat source;
the air inlet of the second air blower (6) faces the heat source, and the air outlet of the second air blower (6) is connected with the outside of the tunnel through a pipeline.
2. The hybrid construction aeration-cooling system for the extra-long tunnel according to claim 1, wherein the cold water spray system comprises a cold water tank (10), a high pressure pump room (9), a spray system (8) and a cold water heat preservation pipe (11), the cold water tank (10) is arranged outside the tunnel, the spray system (8) is arranged in the tunnel and distributed in a continuous area section in the tunnel, and the cold water tank (10) passes through the high pressure pump room (9) and is connected with the spray system (8) through the cold water heat preservation pipe (11).
3. A hybrid construction aeration-cooling system for very long tunnels according to claim 1, wherein the sprinkler system (8) comprises a plurality of sprinklers distributed in a spiral arrangement in a continuous zone section inside the tunnel.
4. A hybrid construction aeration-cooling system for an extra-long tunnel according to claim 1, wherein said cold water spray system is a spray type cold water spray system.
5. The hybrid construction aeration-cooling system for the extra-long tunnel according to claim 1, wherein the first blower (4) has a heat-insulating air supply pipe (5) at one side of the air outlet, one end of the heat-insulating air supply pipe (5) is connected with the air outlet of the first blower (4), and the other end of the heat-insulating air supply pipe is directed to the heat source.
6. A hybrid construction aeration-cooling system for an extra-long tunnel according to claim 5, wherein the second blower (6) is provided in the middle between the outlet of the first blower (4) and the heat-insulating blower pipe (5).
7. A hybrid construction aeration-cooling system for an extra-long tunnel according to claim 1, wherein the inlet of the second blower (6) is located at the upper end of the heat source.
8. A hybrid construction aeration-cooling system for an extra-long tunnel according to claim 1, wherein the outlet of the second blower (6) is located at the upper end of the tunnel outside the tunnel.
9. A hybrid construction aeration-cooling system for an extra-long tunnel according to claim 1, wherein said cold water spray system is used to cool the air in a continuous zone section of the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921454316.2U CN210858775U (en) | 2019-09-03 | 2019-09-03 | A hybrid construction aeration cooling system for extra long tunnel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921454316.2U CN210858775U (en) | 2019-09-03 | 2019-09-03 | A hybrid construction aeration cooling system for extra long tunnel |
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| CN210858775U true CN210858775U (en) | 2020-06-26 |
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| CN201921454316.2U Active CN210858775U (en) | 2019-09-03 | 2019-09-03 | A hybrid construction aeration cooling system for extra long tunnel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927545A (en) * | 2020-06-29 | 2020-11-13 | 中铁第一勘察设计院集团有限公司 | Cooling system for working area at front end of tunnel face |
| CN111927521A (en) * | 2020-06-29 | 2020-11-13 | 中铁第一勘察设计院集团有限公司 | Method for cooling working area at front end of tunnel face |
| CN112012778A (en) * | 2020-09-03 | 2020-12-01 | 广西大学 | Device and method for rapid ventilation and dust fall in tunnel engineering |
| CN112796819A (en) * | 2021-01-27 | 2021-05-14 | 中钢集团马鞍山矿山研究总院股份有限公司 | Ventilation, dust removal and cooling combined system for underground mine roadway excavation |
| CN112796818A (en) * | 2021-01-27 | 2021-05-14 | 中钢集团马鞍山矿山研究总院股份有限公司 | Local ventilation and refrigeration combined high-temperature excavation roadway heat extraction and cooling system |
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2019
- 2019-09-03 CN CN201921454316.2U patent/CN210858775U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927545A (en) * | 2020-06-29 | 2020-11-13 | 中铁第一勘察设计院集团有限公司 | Cooling system for working area at front end of tunnel face |
| CN111927521A (en) * | 2020-06-29 | 2020-11-13 | 中铁第一勘察设计院集团有限公司 | Method for cooling working area at front end of tunnel face |
| CN111927521B (en) * | 2020-06-29 | 2023-02-28 | 中铁第一勘察设计院集团有限公司 | Method for cooling working area at front end of tunnel face |
| CN112012778A (en) * | 2020-09-03 | 2020-12-01 | 广西大学 | Device and method for rapid ventilation and dust fall in tunnel engineering |
| CN112796819A (en) * | 2021-01-27 | 2021-05-14 | 中钢集团马鞍山矿山研究总院股份有限公司 | Ventilation, dust removal and cooling combined system for underground mine roadway excavation |
| CN112796818A (en) * | 2021-01-27 | 2021-05-14 | 中钢集团马鞍山矿山研究总院股份有限公司 | Local ventilation and refrigeration combined high-temperature excavation roadway heat extraction and cooling system |
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