CN220226955U - Ventilating and refrigerating system for high-altitude tunnel construction - Google Patents
Ventilating and refrigerating system for high-altitude tunnel construction Download PDFInfo
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- CN220226955U CN220226955U CN202321751119.3U CN202321751119U CN220226955U CN 220226955 U CN220226955 U CN 220226955U CN 202321751119 U CN202321751119 U CN 202321751119U CN 220226955 U CN220226955 U CN 220226955U
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 238000001816 cooling Methods 0.000 claims abstract description 47
- 238000009423 ventilation Methods 0.000 claims abstract description 34
- 238000005057 refrigeration Methods 0.000 claims abstract description 14
- 238000002844 melting Methods 0.000 claims abstract description 8
- 239000005457 ice water Substances 0.000 claims abstract description 5
- 239000003507 refrigerant Substances 0.000 claims description 48
- 239000000523 sample Substances 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model relates to the field of shield construction auxiliary equipment, in particular to a ventilation and refrigeration system for high-altitude tunnel construction, which comprises the following components: set up the cooling body who is connected with tunnel ventilation pipeline, cooling body includes: the cold water tank is arranged outside the tunnel and connected with a target water source outside the tunnel so as to lead snow-melting ice water of the target water source outside the tunnel to the cold water tank through a water diversion pipeline, and a filter and an electronic scale remover are arranged on the water diversion pipeline; the plate-type condenser is arranged between the hot air inlet and the cold air outlet of the tunnel ventilation pipeline, the cold water inlet of the plate-type condenser is connected with the cold water tank through the water inlet pipeline, and the hot water outlet of the plate-type condenser is discharged out of the tunnel through the water discharge pipeline; and a pressurizing pump is arranged on the water inlet pipe. The utility model fully utilizes the unique condition of large difference of the internal and external environmental temperature of the high-altitude tunnel, directly uses the snow-melting ice water of the target water source outside the tunnel as cooling water, and can be suitable for tunnel construction in high-altitude areas.
Description
Technical Field
The utility model relates to the field of shield construction auxiliary equipment, in particular to a ventilation and refrigeration system for high-altitude tunnel construction.
Background
In the construction process of the high-altitude tunnel with the altitude above 1500m, the environment temperature and the humidity in the tunnel are higher due to the influence of high geothermal heat, and the height Wen Chongshui can be up to more than 80 degrees especially on the tunnel face. The environment is extremely bad, personnel entering construction is influenced, and the construction period progress is seriously influenced. The existing tunnel construction adopts the method that frozen ice cubes are manufactured outside the tunnel, the manufactured frozen ice cubes are transported into the tunnel, or a plurality of blowers are added to convey fresh air into the tunnel to achieve the cooling and ventilation face, but the mode is low in efficiency and high in cost, and the construction progress is influenced. In order to solve the situation, the Chinese patent CN205279540U is named as a tunnel construction ventilation refrigerating system, a refrigerating system is arranged in a ventilating pipeline to perform refrigeration treatment on the ventilating pipeline in a construction tunnel, a refrigerating device in a condensing system consists of a condenser, a throttle valve, an evaporator and a compressor, the circulating system comprises a circulating pipeline, a water tank and a water pump, water in the water tank firstly flows into the circulating pipeline in the circulating system to perform refrigeration treatment on the tunnel ventilating pipeline through the refrigerating device, then flows into the water tank to circulate, but a high-altitude area is affected by high geothermal energy, and a related electrical control cabinet of the compressor is easy to break down when being used in a high-temperature and high-humidity environment, so that the ventilation refrigerating of the scheme is limited in use in a high-altitude area.
Disclosure of Invention
Therefore, the ventilation and refrigeration system for high-altitude tunnel construction provided by the utility model fully utilizes the unique condition of large difference of the internal and external environment temperatures of the high-altitude tunnel, directly uses snow-melting ice water of a target water source outside the tunnel as cooling water, and can effectively reduce or avoid equipment faults and the like caused by using a related electrical control cabinet of a compressor unit in a high-temperature and high-humidity environment.
According to the design scheme provided by the utility model, a ventilation and refrigeration system for high-altitude tunnel construction is provided, comprising: set up with the cooling mechanism in the tunnel ventilation pipeline, cooling mechanism includes:
the cold water tank is arranged outside the tunnel and connected with a target water source outside the tunnel so as to lead snow-melting ice water of the target water source outside the tunnel to the cold water tank through a water diversion pipeline, and a filter and an electronic scale remover are arranged on the water diversion pipeline;
the plate-type condenser is arranged between the hot air inlet and the cold air outlet of the tunnel ventilation pipeline, the cold water inlet of the plate-type condenser is connected with the cold water tank through the water inlet pipeline, and the hot water outlet of the plate-type condenser is discharged out of the tunnel through the water discharge pipeline;
and a pressurizing pump is arranged on the water inlet pipe so as to convey cold water in the cold water tank into the plate type condenser by using the pressurizing pump to absorb heat and exchange heat for hot air in the tunnel ventilation pipeline.
Further, the plate condenser comprises: the water inlet pipeline is divided into two branch pipelines by the booster pump, one branch pipeline is connected with the refrigerant heat exchange unit, and the other branch pipeline is connected with the water cooling heat exchange unit.
Further, the refrigerant heat exchange unit includes: the condenser is characterized by comprising a condenser, a refrigerant fin and a compressor, wherein a cold water inlet of the condenser is connected with one branch pipeline, a hot water outlet of the condenser is connected with a drainage pipeline, a refrigerant inlet of the refrigerant fin is connected with a refrigerant outlet of the condenser, and the compressor is arranged on a refrigerant circulating pipeline between the refrigerant outlet of the refrigerant fin and the refrigerant inlet of the condenser.
Further, the water-cooled heat exchange unit comprises: and a cold water inlet of the water cooling fin is connected with the other branch pipeline, and a hot water outlet of the water cooling fin is connected with the drainage pipeline.
Further, the plate condenser further comprises: the temperature probe is used for collecting the ambient temperature in the tunnel, the control valve group is arranged on each branch pipeline of the refrigerant heat exchange unit and the water-cooling heat exchange unit, and the controller is connected with the temperature probe, the refrigerant heat exchange unit, the water-cooling heat exchange unit and the corresponding control valve group through signals.
The utility model has the beneficial effects that:
according to the utility model, water diversion outside the tunnel is filled into the cold water tank outside the tunnel after being treated such as filtration, descaling and the like, water in the cold water tank is pressurized by the pressurizing pump and then is conveyed into the tunnel through the pipeline, hot air in the ventilation pipeline of the tunnel is cooled and exchanged through the plate type condenser, the used cooling water is discharged outside the tunnel through the drainage pipeline, the water diversion is directly used as cooling water, the cold water resource is sufficient, secondary recycling is not needed, the traditional cooling water is avoided, a cooling tower is required to be built outside the tunnel or the cooling treatment is required to be carried out through the refrigerating device in advance, the whole refrigerating system can reduce the use of a compressor unit and a condensing agent, the purpose of more protecting environment is achieved, and the phenomenon that the related electrical control cabinet of the compressor unit is prone to failure in a high-temperature and high-humidity environment can be effectively reduced.
Description of the drawings:
FIG. 1 is a schematic diagram of a ventilation and refrigeration system for high altitude tunnel construction in an embodiment;
FIG. 2 is a schematic illustration of a tunnel vent in an embodiment;
FIG. 3 is a right-hand illustration of a tunnel vent in an embodiment;
FIG. 4 is a schematic of a plate condenser workflow in an embodiment;
fig. 5 is a schematic diagram of the control principle of the plate type condenser in the embodiment.
In the figure, reference numeral 1 denotes a tunnel ventilation pipeline, reference numeral 2 denotes a plate type condenser, reference numeral 211 denotes a water cooling fin, reference numeral 221 denotes a condenser, reference numeral 222 denotes a compressor, reference numeral 223 denotes a refrigerant fin, reference numeral 3 denotes a cold water tank, and reference numeral 4 denotes a booster pump.
The specific embodiment is as follows:
for the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.
Examples
Aiming at the fact that the temperature of the outside environment of a hole in a high-altitude area is lower, the temperature of surrounding snow ice melting water is generally lower than 12 ℃, and the condition of the surrounding snow ice melting water serving as cooling water is met, as shown in fig. 1, 2 and 3, the embodiment provides a ventilation and refrigeration system for high-altitude tunnel construction, which comprises the following components: a cooling mechanism arranged in the tunnel ventilation pipeline 1, the cooling mechanism comprises:
the cold water tank 3 is arranged outside the tunnel and connected with a target water source outside the tunnel so as to lead snow and ice melting water of the target water source outside the tunnel to the cold water tank through a water diversion pipeline, and a filter and an electronic scale remover are arranged on the water diversion pipeline;
the plate type condenser 2 is arranged between the hot air inlet and the cold air outlet of the tunnel ventilation pipeline 1, the cold water inlet of the plate type condenser 2 is connected with the cold water tank 3 through a water inlet pipeline, and the hot water outlet of the plate type condenser 2 is discharged out of the tunnel through a water discharge pipeline;
and a booster pump 4 is arranged on the water inlet pipe, so that cold water in the cold water tank is sent 3 to the plate type condenser 2 by the booster pump 4 to absorb heat and exchange heat for hot air in the tunnel ventilation pipeline 1.
The tunnel ventilation pipeline cooling and heat exchanging device has the advantages that the characteristics of large difference of the ambient temperature inside and outside the tunnel are achieved, water diversion outside the tunnel is filled into the cold water tank outside the tunnel after being treated by filtering, descaling and the like, water in the cold water tank is conveyed into the tunnel through the pipeline after being pressurized by the pressurizing pump, hot air in the tunnel ventilation pipeline is cooled and exchanged through the plate type condenser, the structure is more compact, the weight is lighter, the assembly and maintenance are facilitated, the heat exchanging capacity per unit area is improved, the heat transfer coefficient is further improved, and the tunnel ventilation pipeline cooling and heat exchanging device is easy to clean. The used cooling water is discharged out of the tunnel through the drainage pipeline, the diversion water is directly used as the cooling water, the cold water resource is sufficient, secondary recycling is not needed, the condition that the cooling tower is built outside the tunnel or the cooling treatment is needed to be carried out through the refrigerating device in advance in the traditional cooling water is avoided, the whole set of refrigerating system can reduce or avoid using the compressor unit and the condensing agent, the purpose of protecting the environment is achieved, and the system is suitable for tunnel construction in high-altitude areas.
For the case that the hole has a height Wen Chongshui or the temperature in the hole in summer is too high, the embodiment of the present disclosure may further adopt the plate type condenser 2 comprising two structures of refrigerant and water cooling, i.e. the plate type condenser 2 is designed to comprise: the refrigerant heat exchange unit and the water-cooling heat exchange unit are arranged in the tunnel ventilation pipeline in parallel, and the water inlet pipeline is divided into two branch pipelines through the pressurizing pump 4, wherein one branch pipeline is connected with the refrigerant heat exchange unit, and the other branch pipeline is connected with the water-cooling heat exchange unit. By the refrigerant and water cooling structure of the plate type condenser 2, only the water cooling structure is used when the temperature in the tunnel is not high, and the mode of combining the refrigerant and the water cooling structure is adopted when the temperature is high, so that a better heat exchange effect is achieved.
Wherein, refrigerant heat transfer unit includes: the condenser 221, refrigerant fin 223 and compressor 222, wherein, condenser 221 cold water import is connected with one of them bleeder line, and condenser 221 hot water export is connected with the drain pipe, and refrigerant fin 223 refrigerant import is connected with condenser 221 refrigerant export, and compressor 222 sets up the refrigerant circulation pipeline between refrigerant fin 223 refrigerant export and condenser 221 refrigerant import. The water-cooled heat exchange unit comprises: the cold water inlet of the water cooling fin 211 is connected with the other branch pipeline, and the hot water outlet of the water cooling fin 211 is connected with the drainage pipeline.
Referring to fig. 4, the heat exchange device is selected according to the temperature condition in the hole, and can work only by using a water cooling fin or a mode of combining the water cooling fin and a refrigerant fin so as to achieve better refrigeration and heat exchange effects under the conditions of Wen Chongshui in the hole or high temperature in the hole in summer. In practical application, the water cooling fins 211 and the refrigerant fins 223 in fig. 4 are all disposed in the tunnel ventilation pipeline, and the two fins can be disposed in a crossing manner, and the water cooling fins 211 and the refrigerant fins 223 which are staggered in the illustration are only displayed in two working modes and do not represent the practical mounting positions.
Further, the plate condenser further comprises: the temperature probe is used for collecting the ambient temperature in the tunnel, the control valve group is arranged on each branch pipeline of the refrigerant heat exchange unit and the water-cooling heat exchange unit, and the controller is connected with the temperature probe, the refrigerant heat exchange unit, the water-cooling heat exchange unit and the corresponding control valve group through signals.
Referring to fig. 5, the switching of the working modes of intelligent temperature detection and water cooling fins or the combination of the water cooling fins and the refrigerant fins is realized by using a control valve group consisting of a controller, a temperature probe, an electromagnetic valve, a throttle valve, a one-way valve, a needle valve, an expansion valve, a ball valve and the like which are arranged in a branch pipeline. The air conditioner can be controlled by simple logic, when the air conditioner does not have high Wen Chongshui or is used in autumn and winter, for example, the air conditioner can be arranged in a hole, and the air conditioner is cooled and dehumidified by only using the water cooling fins, so that the condition of using a compressor unit and a refrigerant for a long time can be avoided, and the air conditioner is energy-saving and environment-friendly; when the temperature in the hole is higher than 35 ℃ or Wen Chongshui, the water cooling fins and the refrigerant fins are combined to cool and dehumidify the inner environment of the hole, so that a good cooling effect is achieved. The cooling requirements of the tunnel ventilation pipeline under different climates and/or environments are met through the flexibility and the variability of the cooling modes of the tunnel ventilation pipeline, the use of a compressor unit and a refrigerant agent is avoided as much as possible, and the practicability is higher.
In the description of the embodiments of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the product of the present utility model is conventionally put when used, it is merely for convenience of describing the present utility model and simplifying the description, and it does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang" and the like, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present utility model, "plurality" means at least 2.
In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (5)
1. A ventilation and refrigeration system for high altitude tunnel construction, comprising: set up with the cooling mechanism in the tunnel ventilation pipeline, its characterized in that, cooling mechanism includes:
the cold water tank is arranged outside the tunnel and connected with a target water source outside the tunnel so as to lead snow-melting ice water of the target water source outside the tunnel to the cold water tank through a water diversion pipeline, and a filter and an electronic scale remover are arranged on the water diversion pipeline;
the plate-type condenser is arranged between the hot air inlet and the cold air outlet of the tunnel ventilation pipeline, the cold water inlet of the plate-type condenser is connected with the cold water tank through the water inlet pipeline, and the hot water outlet of the plate-type condenser is discharged out of the tunnel through the water discharge pipeline;
and a pressurizing pump is arranged on the water inlet pipe so as to convey cold water in the cold water tank into the plate type condenser by using the pressurizing pump to absorb heat and exchange heat for hot air in the tunnel ventilation pipeline.
2. The ventilation and refrigeration system for high altitude tunnel construction of claim 1, wherein the plate type condenser comprises: the water inlet pipeline is divided into two branch pipelines by the booster pump, one branch pipeline is connected with the refrigerant heat exchange unit, and the other branch pipeline is connected with the water cooling heat exchange unit.
3. The ventilation and refrigeration system for high-altitude tunnel construction of claim 2, wherein the refrigerant heat exchange unit comprises: the condenser is characterized by comprising a condenser, a refrigerant fin and a compressor, wherein a cold water inlet of the condenser is connected with one branch pipeline, a hot water outlet of the condenser is connected with a drainage pipeline, a refrigerant inlet of the refrigerant fin is connected with a refrigerant outlet of the condenser, and the compressor is arranged on a refrigerant circulating pipeline between the refrigerant outlet of the refrigerant fin and the refrigerant inlet of the condenser.
4. The ventilation and refrigeration system for high altitude tunnel construction of claim 2, wherein the water-cooled heat exchange unit comprises: and a cold water inlet of the water cooling fin is connected with the other branch pipeline, and a hot water outlet of the water cooling fin is connected with the drainage pipeline.
5. The ventilation and refrigeration system for high altitude tunnel construction of claim 2, wherein the plate condenser further comprises: the temperature probe is used for collecting the ambient temperature in the tunnel, the control valve group is arranged on each branch pipeline of the refrigerant heat exchange unit and the water-cooling heat exchange unit, and the controller is connected with the temperature probe, the refrigerant heat exchange unit, the water-cooling heat exchange unit and the corresponding control valve group through signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321751119.3U CN220226955U (en) | 2023-07-05 | 2023-07-05 | Ventilating and refrigerating system for high-altitude tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321751119.3U CN220226955U (en) | 2023-07-05 | 2023-07-05 | Ventilating and refrigerating system for high-altitude tunnel construction |
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| Publication Number | Publication Date |
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| CN220226955U true CN220226955U (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321751119.3U Active CN220226955U (en) | 2023-07-05 | 2023-07-05 | Ventilating and refrigerating system for high-altitude tunnel construction |
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| Country | Link |
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| CN (1) | CN220226955U (en) |
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2023
- 2023-07-05 CN CN202321751119.3U patent/CN220226955U/en active Active
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