Background
The utility tunnel is a tunnel structure which can hold municipal pipelines such as gas, heat, water supply, reclaimed water, electric power, communication and the like into a whole and is relatively sealed. Because the installation of pipeline, the regular replacement maintenance of tubular product, staff's daily inspection need be carried out in the piping lane, consequently, the necessary ventilation facility need be set up in the piping lane.
In current design, when the piping lane adopted the mechanical draft mode to carry out the corridor internal draft, ventilation system's setting mode was that every vent department in two interlayers of piping lane sets up a fan. In actual operation, for reducing ventilation node and go out ground wind pavilion quantity, often build the ventilation node of the cabin outside the gas cabin jointly, the both ends of the ventilation subregion in every cabin set up a vent respectively and are connected with pipe gallery ventilation interlayer, and a vent sets up a fan. According to the piping lane ventilation system of this kind of design, can reduce the interbedded quantity of piping lane ventilation, reduce ventilation node and go out ground wind pavilion quantity, but ventilation equipment and relevant tuber pipe part are more, lead to piping lane ventilation system structure more complicated, and the cost is high, and the probability of accident appears is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a utility tunnel to alleviate the relatively complicated of piping lane ventilation system structure, the higher technical problem of probability of accident appears.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides a utility tunnel, include:
the functional cabin comprises a first ventilation subarea and a second ventilation subarea, the first ventilation subarea is provided with a first ventilation opening, and the second ventilation subarea is provided with a second ventilation opening;
the pipe gallery two interlayers are communicated with the ground and are arranged above the functional cabin;
the fan is respectively connected with the first ventilation opening and the second ventilation opening and used for driving and generating airflow flowing from the first ventilation opening to the second interlayer of the pipe gallery and airflow flowing from the second ventilation opening to the second interlayer of the pipe gallery;
and a first regulating valve is arranged between the fan and the first ventilation opening, and a second regulating valve is arranged between the fan and the second ventilation opening.
In a preferred embodiment, at least one of the functional compartments comprises a water compartment and a telecommunication compartment, and a fan connected with the water compartment and a fan connected with the telecommunication compartment are both arranged in the two interlayers of the pipe gallery.
In a preferred embodiment, the utility tunnel comprises a first air pipe and an air pipe elbow connected to the first air pipe, the first air pipe is connected to the first ventilation opening and the second ventilation opening, and the fan is installed on the first air pipe.
In a preferred embodiment, the water tank and the telecommunications tank are distributed along a tank direction, an opening direction of an air pipe elbow connected with the water tank points to the telecommunications tank along the tank direction, and an opening direction of an air pipe elbow connected with the telecommunications tank points to the water tank along the tank direction.
In the preferred embodiment, utility tunnel includes the sky circle place joint, the second tuber pipe of being connected with first vent and the third tuber pipe of being connected with second vent, and first tuber pipe is the pipe, and second tuber pipe and third tuber pipe are square pipe, the first end that the sky circle place connects with first tuber pipe is connected, the second tuber pipe with the third tuber pipe all with the second end that the sky circle place connects is connected.
In a preferred embodiment, the utility tunnel comprises a first plenum box connected to the first vent, and a second plenum box connected to the second vent, the second plenum box connected to the second air duct, and the third plenum box connected to the second plenum box.
In a preferred embodiment, the first regulating valve is arranged on the side of the first static pressure tank facing away from the first ventilation opening, and the second regulating valve is arranged on the side of the second static pressure tank facing away from the second ventilation opening.
In a preferred embodiment, a first check valve is arranged between the first regulating valve and the first hydrostatic tank, and a second check valve is arranged between the second regulating valve and the second hydrostatic tank.
In a preferred embodiment, a first normally open fire damper is arranged between the first ventilation opening and the first static pressure box, and a second normally open fire damper is arranged between the second ventilation opening and the second static pressure box.
In a preferred embodiment, the utility tunnel comprises a gas cabin.
The utility model discloses a characteristics and advantage are:
in this utility tunnel, when first ventilation zone needs the ventilation, open first governing valve, close the second governing valve, the fan begins the operation, and the gas in the first ventilation zone of fan drive flows into the second intermediate layer of piping lane through first vent to can arrange to ground outdoor through the second intermediate layer of piping lane, thereby guarantee the normal ventilation of the first ventilation zone in function cabin.
When the second ventilation subregion needs the ventilation, open the second governing valve, close first governing valve, the fan begins the operation, and the gas in the fan drive second ventilation subregion flows into two intermediate layers of piping lane through the second vent to can arrange to ground outdoor through two intermediate layers of piping lane, thereby the normal ventilation of the second ventilation subregion of guarantee function cabin.
This utility tunnel cooperatees through first governing valve, second governing valve and a fan, can ensure the normal ventilation of two subregion in function cabin, and the part is less, has simplified the structure, has reduced the probability of breaking down.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a utility tunnel;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a top view of the utility tunnel provided by the present invention;
FIG. 4 is a side view of the utility tunnel shown in FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 3 at B;
fig. 6 is a partially enlarged view at C in fig. 4.
The reference numbers illustrate:
10. a functional compartment; 101. a water tank; 102. a communication cabin; 103. a gas cabin; 104. a manhole; 105. a cabin direction; 106. designing the elevation of the pavement; 107. positioning a mileage axis; 108. determining a measuring line for the pipe gallery;
11. a first ventilation zone; 111. a first vent; 12. a second ventilation zone; 121. a second vent; 13. a fire door;
20. a second interlayer of the pipe gallery; 21. a ground-out wind booth; 22. a rain-proof shutter;
30. a fan; 31. a first air duct; 32. an air pipe elbow; 33. a round-top and square-bottom joint; 34. a fireproof flexible connecting pipe;
41. a first regulating valve; 42. a second regulating valve;
51. a second air duct; 52. a third air duct;
61. a first plenum box; 62. a second plenum box;
71. a first check valve; 72. a second check valve;
81. a first normally open fire damper; 82. a second normally open fire damper;
911. ventilating a first subarea; 912. a second ventilation zone; 913. ventilating and partitioning; 914. ventilating and partitioning;
921. a first ventilation opening; 922. a second air vent; 923. a third air vent; 924. a vent hole IV;
301. a first fan; 302. a second fan; 303. a third fan; 304. and a fourth fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that 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 work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a utility tunnel, and fig. 2 is a sectional view taken along a-a direction in fig. 1. The utility tunnel shown in fig. 1 comprises a water tank 101, a telecom compartment 102 and a pipe gallery two-layer 20. As shown in fig. 1, for the water tank 101, the water tank 101 is divided into two ventilation zones, namely a first ventilation zone 911 and a second ventilation zone 912, the first ventilation zone 911 is provided with a first ventilation opening 921 and a first fan 301, the second ventilation zone 912 is provided with a second ventilation opening 922 and a second fan 302, and the first ventilation zone 911 and the second ventilation zone 912 are respectively ventilated. For the telecommunications cabinet 102, the telecommunications cabinet 102 is divided into two ventilation zones, namely a ventilation zone three 913 and a ventilation zone four 914, the ventilation zone three 913 is provided with a ventilation opening three 923 and a ventilation fan three 303, the ventilation zone four 914 is provided with a ventilation opening four 924 and a ventilation fan four 304, and the ventilation zone three 913 and the ventilation zone four 914 are respectively ventilated. In the utility tunnel shown in fig. 1, at least 4 fans and 4 sets of corresponding ventilation devices are included, and the number of the ventilation devices and the related pipe distribution components is large.
The utility model provides a utility tunnel, as shown in figure 3 and figure 4, this utility tunnel includes: the functional cabin 10 comprises a first ventilation subarea 11 and a second ventilation subarea 12, the first ventilation subarea 11 is provided with a first ventilation opening 111, and the second ventilation subarea 12 is provided with a second ventilation opening 121; the second interlayer 20 of the pipe gallery is communicated with the ground and is arranged above the functional cabin 10; the fan 30 is respectively connected with the first ventilation opening 111 and the second ventilation opening 121 and is used for driving and generating air flow flowing from the first ventilation opening 111 to the second interlayer 20 of the pipe gallery and air flow flowing from the second ventilation opening 121 to the second interlayer 20 of the pipe gallery; a first regulating valve 41 is arranged between the fan 30 and the first ventilation opening 111, and a second regulating valve 42 is arranged between the fan 30 and the second ventilation opening 121.
In this utility tunnel, when first ventilation subregion 11 needs the ventilation, open first governing valve 41, close second governing valve 42, fan 30 begins the operation, and the gas in fan 30 drive first ventilation subregion 11 flows into pipe gallery two intermediate layers 20 through first vent 111 to can arrange to the ground outdoor through pipe gallery two intermediate layers 20, thereby the normal ventilation of the first ventilation subregion 11 of guarantee function cabin 10.
When the second ventilation subarea 12 needs ventilation, the second regulating valve 42 is opened, the first regulating valve 41 is closed, the fan 30 starts to operate, and the fan 30 drives the gas in the second ventilation subarea 12 to flow into the second pipe gallery interlayer 20 through the second ventilation opening 121 and can be discharged to the ground outside through the second pipe gallery interlayer 20, so that normal ventilation and air exchange of the second ventilation subarea 12 of the functional cabin 10 are guaranteed.
This utility tunnel cooperatees through first governing valve 41, second governing valve 42 and a fan 30, can ensure the normal ventilation of two subregion of function cabin 10, and the part is less, has simplified the structure, has reduced the probability of breaking down. For the purpose of automatic control, the first regulating valve 41 and the second regulating valve 42 may each adopt electric regulation. This utility tunnel has reduced fan 30 quantity through reasonable optimization ventilation system and control mode thereof, has alleviated fan 30 equipment and the too much problem of tuber pipe part in the two intermediate layers 20 of piping lane.
The functional cabin 10 is provided with a fireproof door 13, the functional cabin 10 is divided into a first ventilation subarea 11 and a second ventilation subarea 12 through the fireproof door 13, and the fireproof door 13 is positioned between the first ventilation subarea 11 and the second ventilation subarea 12, so that the requirement of fire protection specifications is met. The fire door 13 is preferably a normally closed fire door. In particular, the fire door 13 may be a class a fire door. As shown in fig. 3, each of the first ventilating partition 11 and the second ventilating partition 12 is provided with a manhole 104 communicating with the pipe gallery second interlayer 20.
As shown in fig. 4, a ground outlet wind pavilion 21 is arranged above the second interlayer 20 of the pipe gallery, and the air flow driven by the fan 30 firstly enters the second interlayer 20 of the pipe gallery and then flows to the ground outlet wind pavilion 21; the ground-out wind pavilion 21 is provided with a rainproof shutter 22. In some embodiments, the design road elevation 106 is above the piping lane mezzanine 20 and below the rain louvers 22.
In the utility tunnel, the number of the function cabins 10 connected with the two interlayers 20 of the same pipe gallery can be one or more. Preferably, the number of functional compartments 10 connected to one and the same pipe rack mezzanine 20 is two. According to the structural characteristics of each function cabin 10, more preferably, at least one function cabin 10 comprises a water cabin 101 and a telecommunication cabin 102, the water cabin 101 and the telecommunication cabin 102 are adjacently arranged, and the pipe rack mezzanine 20 is arranged above the water cabin 101 and the telecommunication cabin 102.
In some embodiments, the first ventilation opening 111 and the second ventilation opening 121 of each functional compartment 10 connected to the same pipe gallery two-layer 20 may be connected to the same blower 30. However, for the convenience of control and the reliability of ventilation, the first ventilation opening 111 and the second ventilation opening 121 of the same functional compartment 10 are connected to the same fan 30, and each functional compartment 10 is connected to a fan 30. The fan 30 is type-selected by calculating the ventilation amount and the total pressure. The first ventilation subarea 11 and the second ventilation subarea 12 of the same functional cabin 10 share one fan 30, and because the cross-sectional areas of the first ventilation subarea 11 and the second ventilation subarea 12 of the same functional cabin 10 are equal and the ventilation volume and the total pressure are close to each other under normal conditions, the type selection of the fan 30 is facilitated, and the power saving of the fan 30 is facilitated.
In an embodiment of the present invention, the at least one functional cabin 10 includes a water cabin 101 and a telecommunication cabin 102, the water cabin 101 and the telecommunication cabin 102 are disposed adjacent to each other, and the two interlayers 20 of the pipe rack are disposed above the water cabin 101 and the telecommunication cabin 102; the fan 30 that is connected with water tank 101 and the fan 30 that is connected with communication cabin 102 all set up in two intermediate layers 20 of piping lane, according to the structural feature of water tank 101 and communication cabin 102, this embodiment has reduced fan 30 quantity on the one hand, and on the other hand fan 30's connection structure is fairly simple, and control is more convenient, can make water tank 101 and communication cabin 102 homoenergetic guarantee to ventilate steadily.
The utility model discloses an in an embodiment, utility tunnel includes gas cabin 103, and three cabins utility tunnel can be constituteed to gas cabin 103, water cabin 101 and news cabin 102. The gas cabin 103 is not connected with the pipe gallery two-layer interlayer 20, and the ventilation node of the gas cabin 103 is independently arranged and meets the specification requirement.
As shown in fig. 3-6, the utility tunnel includes a first air duct 31 and an air duct elbow 32 connected to the first air duct 31, the first air duct 31 is connected to the first ventilation opening 111 and the second ventilation opening 121, respectively, and the blower 30 is installed on the first air duct 31. Preferably, the opening of the duct bend 32 is inclined upward so that the airflow driven by the fan 30 flows through the first duct 31 and the duct bend 32 and is discharged to the outside of the floor.
As shown in fig. 3 and 4, the gas cabin 103, the water cabin 101 and the telecom cabin 102 are distributed along the cabin direction 105, and the positioning mileage axis 107 is arranged between the first ventilation zone 11 and the second ventilation zone 12; as shown in fig. 4, the piping lane alignment line 108 is provided on the center plane in the width direction of the telecommunications closet 102. The air pipe elbow 32 connected with the water tank 101 and the air pipe elbow 32 connected with the telecommunication tank 102 can be arranged in the second interlayer 20 of the pipe rack according to the structure of the second interlayer 20 of the pipe rack. Preferably, as shown in fig. 4, the opening direction of the air pipe elbow 32 connected to the water tank 101 is directed to the telecom compartment 102 along the compartment direction 105, the opening direction of the air pipe elbow 32 connected to the telecom compartment 102 is directed to the water tank 101 along the compartment direction 105, and the two air pipe elbows 32 are arranged in a staggered manner, so that on one hand, the airflow entering the second interlayer 20 of the pipe gallery can smoothly flow upwards to be discharged, and especially when the two fans 30 operate simultaneously, the airflow can be smoothly discharged; on the other hand can also make full use of the space in two intermediate layers 20 of piping lane, can effectively reduce two intermediate layers 20's of piping lane area occupied, when the construction structure is limited, two intermediate layers 20 of piping lane are less, make things convenient for the overall arrangement of parts of ventilating such as fan 30 and tuber pipe.
Further, this utility tunnel includes sky circle place joint 33, the second tuber pipe 51 of being connected with first vent 111, and the third tuber pipe 52 of being connected with second vent 121, the first end and the first tuber pipe 31 of sky circle place joint 33 are connected, second tuber pipe 51 and third tuber pipe 52 all are connected with the second end of sky circle place joint 33, first tuber pipe 31 is the pipe, second tuber pipe 51 and third tuber pipe 52 are square pipe, sky circle place joint 33 one end is the pipe connection port, the other end cooperates with second tuber pipe 51 and third tuber pipe 52, arrange like this and be favorable to the space in the two intermediate layers 20 of make full use of piping lane, guarantee air current smooth and easy flow in second tuber pipe 51 and the third tuber pipe 52. Preferably, a fireproof flexible connecting pipe 34 is arranged between the hemispherical dome joint 33 and the fan 30, so as to improve the flexibility of installation and facilitate installation.
In an embodiment of the present invention, the utility tunnel comprises a first plenum box 61 connected to the first vent 111 and a second plenum box 62 connected to the second vent 121, the second air duct 51 is connected to the first plenum box 61, and the third air duct 52 is connected to the second plenum box 62. When the fan 30 and the first adjusting valve 41 are opened, the gas in the first ventilation partition 11 enters the first static pressure tank 61 through the first ventilation opening 111, performs dynamic and static pressure conversion in the first static pressure tank 61, reduces dynamic pressure, reduces wind speed and noise, and then enters the second interlayer 20 of the pipe gallery through the second air pipe 51, the first air pipe 31 and the air pipe elbow 32. When the fan 30 and the second adjusting valve 42 are opened, the gas in the second ventilation zone 12 enters the second static pressure tank 62 through the second ventilation opening 121, performs dynamic and static pressure conversion in the second static pressure tank 62, reduces dynamic pressure, wind speed and noise, and then enters the second interlayer 20 of the pipe gallery through the third air pipe 52, the first air pipe 31 and the air pipe elbow 32. Due to the operation of the fan 30, the air pressure in the pipe gallery two-layer 20 is larger than the outdoor environment pressure, and the air in the pipe gallery two-layer 20 can be discharged to the outdoor space based on the internal and external pressure difference.
The first regulating valve 41 is disposed on the air duct between the blower 30 and the first ventilating opening 111, and the second regulating valve 42 is disposed on the air duct between the blower 30 and the second ventilating opening 121. Preferably, as shown in fig. 3 and 5, the first regulating valve 41 is provided on the side of the first static pressure tank 61 facing away from the first ventilation opening 111, and the second regulating valve 42 is provided on the side of the second static pressure tank 62 facing away from the second ventilation opening 121.
Further, a first check valve 71 is provided between the first regulating valve 41 and the first static pressure tank 61, a second check valve 72 is provided between the second regulating valve 42 and the second static pressure tank, the first check valve 71 facilitates smooth flow of the gas from the first static pressure tank 61 to the first regulating valve 41, and the second check valve 72 facilitates smooth flow of the gas from the second static pressure tank 62 to the second regulating valve 42.
Further, a first normally open fire damper 81 is arranged between the first ventilation opening 111 and the first static pressure box 61, and a second normally open fire damper 82 is arranged between the second ventilation opening 121 and the second static pressure box. When a fire disaster happens to the first ventilation subarea 11, the first normally-open fire prevention valve 81 can be automatically closed, so that the fire of the first ventilation subarea 11 is prevented from spreading to the second interlayer 20 of the pipe gallery; when a fire breaks out in the second ventilation zone 12, the second normally open fire damper 82 can automatically close, thereby preventing the fire in the second ventilation zone 12 from spreading to the second mezzanine 20.
The above description is only for the embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.