CN213152674U - Air inlet cooling system for tunnel fan - Google Patents
Air inlet cooling system for tunnel fan Download PDFInfo
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- CN213152674U CN213152674U CN202021536941.4U CN202021536941U CN213152674U CN 213152674 U CN213152674 U CN 213152674U CN 202021536941 U CN202021536941 U CN 202021536941U CN 213152674 U CN213152674 U CN 213152674U
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Abstract
The utility model discloses an air inlet cooling system for a tunnel fan, which comprises a tunnel fan and an air inlet cooling box body; the air inlet cooling box body is sequentially provided with an air inlet system, a mist spraying system and a refrigerating system from front to back; the air inlet system comprises a plurality of air inlet fans; the mist spraying system comprises a cooling water pipe, and a plurality of cooling atomizing water nozzles are arranged on the cooling water pipe; the water inlet of the cooling water pipe is communicated with the water outlet end of the cooling water pump through a cooling water inlet; the refrigeration system comprises a plurality of refrigeration modules which are arranged up and down, and each refrigeration module consists of two refrigeration pipe pieces; the refrigerating duct piece is provided with a refrigerant inlet and a refrigerant outlet; the cold medium inlet and the cold medium outlet are respectively communicated with the output end and the input end of the refrigeration compression pump. The utility model discloses air circumstance in to the tunnel in time cools down the dust fall when tunnel construction to effectively guarantee construction safety, improve the efficiency of construction, improve construction quality.
Description
Technical Field
The utility model belongs to the technical field of tunnel engineering, concretely relates to tunnel fan is with air inlet cooling system.
Background
With the rapid development of tunnel construction in China, part of tunnel design lines are in geothermal zones, and geothermal hazards of different degrees are caused to the construction of tunnel projects. Due to geological structure, most hard rocks and geothermal rocks have low thermal conductivity, heat is transferred to the heat flow to be concentrated, and the heat is distributed in a long and narrow tunnel, so that heat accumulation is caused. Along with the deepening of tunnel construction length, the rock temperature also rises along with it, and the heat is difficult for diffusing under the effect of ordinary fan, makes the interior temperature of tunnel continuously rise, forms geothermol power heat evil. The influence of geothermal heat damage on the construction of the tunnel is as follows:
(1) the additional temperature stress effect generated by rock temperature influences the cracking of lining concrete, and influences the safety and durability of the lining structure.
(2) The high-temperature construction operation environment greatly reduces the working efficiency of constructors, increases the labor cost and greatly influences the health and safety of the constructors.
(3) The selection of construction materials, such as high-temperature explosive, water stop, drainage blind pipes, waterproof boards and the like, can be influenced when the temperature level is higher.
(4) The efficiency of mechanical equipment in the tunnel is reduced and faults occur frequently due to the high-temperature construction operation environment.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a tunnel fan is with air inlet cooling system. The technical scheme is as follows:
an air inlet cooling system for a tunnel fan comprises the tunnel fan and an air inlet cooling box body; the air inlet cooling box body is sequentially provided with an air inlet system, a mist spraying system and a refrigerating system from front to back;
the air inlet system comprises a plurality of air inlet fans;
the mist spraying system comprises a cooling water pipe, and a plurality of cooling atomizing water nozzles are arranged on the cooling water pipe; the water inlet of the cooling water pipe is communicated with the water outlet end of the cooling water pump through a cooling water inlet;
the refrigeration system comprises a plurality of refrigeration modules which are arranged up and down, and each refrigeration module consists of two refrigeration pipe pieces; the refrigerating duct piece is provided with a refrigerant inlet and a refrigerant outlet; the cold medium inlet and the cold medium outlet are respectively communicated with the output end and the input end of the refrigeration compression pump.
Preferably, the cooling box body is provided with an air volume compensation inlet, the air volume compensation inlet is positioned between the air inlet fan and the cooling water pipe, and the air volume compensation inlet is communicated with the output end of the pressurizing fan.
Preferably, the air inlet cooling box body is provided with an interlayer, and a box body heat insulation plate is arranged in the interlayer.
Preferably, the cooling water pipe is an annular water pipe, and the cooling atomized water spray heads are uniformly distributed on the annular water pipe.
Preferably, the air inlet cooling box body includes box, lower box, left side boxboard, right side boxboard, go up for dismantling the connection between box, lower box and the left side box.
The beneficial effects of the utility model reside in that:
1. the system effectively reduces the temperature of the air inlet gas of the tunnel fan by using dual measures of spraying cooling and refrigerating cooling.
2. This system adopts the vaporific spraying system of hoop to carry out humidification cooling to the fan air inlet and handles, when reducing the inlet air temperature, suitably improves inlet air humidity, is favorable to the tunnel dust fall, ensures construction operation personnel's health and safety. The problem of ordinary fan in the ventilation in-process because air drying is unfavorable for the dust fall is solved.
3. The air inlet cooling box body of the system consists of an upper box body, a lower box body, a left box plate and a right box plate, and all the parts are connected through bolts, so that the assembly and disassembly are convenient, and the transportation on mountain roads is convenient. And the quantity of refrigeration section of jurisdiction can increase and decrease according to actual tunnel demand, and accommodation is wide.
4. The safety benefit and the economic benefit are obvious: the tunnel construction operation environment after cooling ensures the health of constructors and the normal operation of mechanical equipment, and improves the working efficiency.
5. The box insulation board is arranged in the system box body, heat transfer inside and outside the box body is effectively isolated, and energy loss is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the middle intake air cooling system of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 5 is an enlarged view of FIG. 1 at D;
wherein: 1. an air inlet fan mounting rack; 2. an air intake fan; 3. an atomized water spray head; 4. a cold medium outlet; 5. a refrigeration duct piece; 6. a cold medium inlet; 7. an upper box body; 8. an air inlet of a tunnel fan; 9. a tunnel fan; 10. an air outlet of the tunnel fan; 11. a right box board; 12. a lower box body; 13. a cooling water inlet; 14. an air quantity compensation inlet; 15. a left box board; 16. an annular water pipe; 17. a box body heat insulation plate; 18. a booster fan; 19. a cooling water pump; 20. an upper extension plate; 21. a lower extension plate; 22. and (4) bolts.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-5, an inlet air cooling system for a tunnel blower includes a tunnel blower and an inlet air cooling box; the air inlet cooling box body is sequentially provided with an air inlet system, a vaporific spraying system and a refrigerating system from front to back.
The air inlet system comprises a plurality of air inlet fans.
The mist spraying system comprises a cooling water pipe, and a plurality of cooling atomizing water nozzles are arranged on the cooling water pipe; and the water inlet of the cooling water pipe is communicated with the water outlet end of the cooling water pump through a cooling water inlet. In this embodiment, the cooling water pipe is an annular water pipe, and the cooling atomized water spray heads are uniformly distributed on the annular water pipe.
The refrigeration system comprises a plurality of refrigeration modules which are arranged up and down, and each refrigeration module consists of two refrigeration pipe pieces; the refrigerating duct piece is provided with a refrigerant inlet and a refrigerant outlet; the cold medium inlet and the cold medium outlet are respectively communicated with the output end and the input end of a refrigeration compression pump (not marked in the figure). In this embodiment, the refrigeration tube sheet is made of aluminum.
The cooling box body is provided with an air quantity compensation inlet, the air quantity compensation inlet is positioned between the air inlet fan and the cooling water pipe, and the air quantity compensation inlet is communicated with the output end of the pressurizing fan. When the tunnel fan causes insufficient inlet air volume due to blocking of the refrigerating duct piece, the pressurizing fan can be selected to be started to compensate the insufficient air volume.
The air inlet cooling box body is provided with an interlayer, and a box body heat preservation plate (in the embodiment, the heat preservation plate is a heat preservation cotton plate) is arranged in the interlayer.
The air inlet cooling box body comprises an upper box body, a lower box body, a left box board and a right box board, and the detachable connection is formed among the upper box body, the lower box body and the left box body and between the upper box body, the lower box body and the right box body. In the embodiment, the upper box body, the lower box body and the left box body are connected through bolts; the upper box body, the lower box body and the right box body are also connected through bolts. Specifically, the edge that the last box is close to lower box is equipped with and prolongs the board, and the edge that the lower box is close to last box is equipped with down the board, it is equipped with the multiunit screw to go up the corresponding position of board, lower board of delaying. When the device is installed, the bolt penetrates through the screw hole and is screwed down by the nut, so that the upper box body and the lower box body are fixed. Meanwhile, the right ends of the upper box body and the lower box body are provided with a right extension plate A (not marked in the figure), one side of the right box body, which is close to the upper box body and the lower box body, is provided with a right extension plate B (not marked in the figure), and the corresponding positions of the right extension plate A and the right extension plate B are provided with a plurality of groups of screw holes which are fixed by bolts penetrating through the screw holes. The fixing principle of the left box board is the same as that of the right box board, and the description is omitted.
The number of the air supply fans is multiple, and the arrangement number and the specification of the air supply fans are determined according to the air supply quantity of the tunnel fans.
The system can be selectively provided with a plc control system (not shown in the figure) for intelligent control. The plc control system may be selected from a common brand available on the market, such as siemens and the like. And the plc control system is connected with the cooling water pump, the air inlet fan, the pressurizing fan and the refrigeration compression pump. The specific connection is performed by a person skilled in the art according to the conventional connection method.
The utility model discloses a theory of operation:
during installation, the upper box body and the lower box body of the air inlet cooling box body are fixed firstly, then the cooling pipe piece, the annular water pipe and the cooling atomized water spray head are fixedly connected, then the air inlet fan is fixed in the air inlet cooling box body through an air inlet fan mounting frame (the upper end and the lower end of the air inlet fan mounting frame are respectively fixed on the upper box body and the lower box body), then the left box plate and the right box plate are fixed, and finally the tunnel fan is fixedly connected with the air inlet cooling box body.
After the installation, earlier with air intake fan, cooling water pump, the refrigeration compression pump, tunnel fan opens, it is inside that gaseous gets into air inlet cooling box through air supply fan, gaseous getting into behind the air inlet cooling box at first through the vaporific sprinkler system cooling humidification dust fall of hoop and handling, later get into refrigeration section of jurisdiction region, utilize the refrigeration section of jurisdiction to carry out further cooling treatment to gaseous, gaseous passing through tunnel fan air intake suction tunnel fan after the cooling afterwards, then arrange tuber pipe or wind bag through tunnel fan air outlet, finally carry the low temperature gas after the cooling to tunnel construction operation district, carry out effectual aeration cooling dust fall to tunnel construction operation district.
This system can be to air cooling dust fall in the tunnel when tunnel construction to effectively improve the efficiency of construction, improve construction quality, guarantee construction safety.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An air inlet cooling system for a tunnel fan is characterized by comprising the tunnel fan and an air inlet cooling box body; the air inlet cooling box body is sequentially provided with an air inlet system, a mist spraying system and a refrigerating system from front to back;
the air inlet system comprises a plurality of air inlet fans;
the mist spraying system comprises a cooling water pipe, and a plurality of cooling atomizing water nozzles are arranged on the cooling water pipe; the water inlet of the cooling water pipe is communicated with the water outlet end of the cooling water pump through a cooling water inlet;
the refrigeration system comprises a plurality of refrigeration modules which are arranged up and down, and each refrigeration module consists of two refrigeration pipe pieces; the refrigerating duct piece is provided with a refrigerant inlet and a refrigerant outlet; the cold medium inlet and the cold medium outlet are respectively communicated with the output end and the input end of the refrigeration compression pump.
2. The intake air cooling system of claim 1, wherein the cooling box is provided with an air volume compensation inlet, the air volume compensation inlet is located between the intake air fan and the cooling water pipe, and the air volume compensation inlet is communicated with the output end of the pressurizing fan.
3. The air intake cooling system for the tunnel fan according to claim 1, wherein the air intake cooling box body is provided with an interlayer, and a box body heat insulation plate is arranged in the interlayer.
4. The air intake cooling system for the tunnel fan according to claim 1, wherein the cooling water pipe is an annular water pipe, and the cooling atomized water spray heads are uniformly distributed on the annular water pipe.
5. The air intake cooling system for the tunnel blower according to any one of claims 1 to 4, wherein the air intake cooling box body comprises an upper box body, a lower box body, a left box plate and a right box plate, and the upper box body, the lower box body and the left box body are detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021536941.4U CN213152674U (en) | 2020-07-30 | 2020-07-30 | Air inlet cooling system for tunnel fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021536941.4U CN213152674U (en) | 2020-07-30 | 2020-07-30 | Air inlet cooling system for tunnel fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213152674U true CN213152674U (en) | 2021-05-07 |
Family
ID=75734723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021536941.4U Active CN213152674U (en) | 2020-07-30 | 2020-07-30 | Air inlet cooling system for tunnel fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213152674U (en) |
-
2020
- 2020-07-30 CN CN202021536941.4U patent/CN213152674U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 3109, building 1, area a, Hezhuang apartment, no.758, Section 1, Furong South Road, Tianxin District, Changsha City, Hunan Province, 410004 Patentee after: Hunan Zhongtian Rock Drilling Technology Co.,Ltd. Address before: Room 3109, building 1, area a, Hezhuang apartment, no.758, Section 1, Furong South Road, Tianxin District, Changsha City, Hunan Province, 410004 Patentee before: Changsha Zhongtian transportation Rock Drilling Technology Service Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |