CN215520882U - Earth pressure balance type shield machine ventilation pipe control system - Google Patents
Earth pressure balance type shield machine ventilation pipe control system Download PDFInfo
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- CN215520882U CN215520882U CN202121050664.0U CN202121050664U CN215520882U CN 215520882 U CN215520882 U CN 215520882U CN 202121050664 U CN202121050664 U CN 202121050664U CN 215520882 U CN215520882 U CN 215520882U
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Abstract
The utility model discloses a ventilation pipe control system of a soil pressure balance type shield machine, which comprises a ventilation system and a control system, wherein the ventilation system comprises an air outlet pipeline, an air inlet pipeline and an air storage barrel, and the air outlet pipeline and the air inlet pipeline are arranged at two ends of the air storage barrel; the control system comprises a ventilation system controller and a plurality of temperature measuring sensors, wherein the ventilation system controller is respectively connected with the high-power fan, the cooling water pump station and the temperature measuring sensors, and the rotating speed of the high-power fan is controlled through the motor driver. The utility model realizes the filtration and cooling of dust in the tunnel; meanwhile, the temperature inside the tunnel is monitored through a temperature sensor, and the rotating speed of the fan is automatically adjusted to control the air inlet amount of the ventilation pipeline.
Description
Technical Field
The utility model relates to an automatic control system of a ventilation system of a soil pressure balance type shield, belonging to the field of tunnel construction.
Background
The shield machine is a large underground tunnel construction device integrating machine, electricity and liquid. The shield constructs the machine in underground construction process, along with excavating the continuous increase of degree of depth, the shield constructs the machine and apart from the distance of tunnel entry more and more far away, and the inside air flow condition in tunnel is more and more poor, consequently needs a set of ventilation system to constantly provide mobile air for tunnel inside. The traditional ventilation pipeline consists of a pipeline, a motor and a fan, only can realize a simple ventilation function inside the tunnel, and when the tunneling depth of the shield tunneling machine is deep, the ventilation pipeline has reduced ventilation efficiency due to the increase of the distance. The shield machine body can produce a large amount of heat when working inside the tunnel, the temperature in the tunnel rises due to the poor ventilation effect, the dust accumulation condition inside the tunnel is serious, the construction environment of workers is poor, and the tunneling work is not facilitated to be smoothly carried out.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide an automatic control system of a ventilation system of a soil pressure balance type shield, aiming at the defects in the prior art, and the automatic control system has the characteristics of high dust removal, cooling and air exchange efficiency.
In order to solve the technical problem, the utility model provides a ventilation pipe control system of a soil pressure balance type shield machine, which comprises a ventilation system and a control system, wherein the ventilation system comprises an air outlet pipeline, an air inlet pipeline and an air storage barrel, the air outlet pipeline and the air inlet pipeline are arranged at two ends of the air storage barrel, a three-stage structure is arranged inside the air inlet side of the air storage barrel and respectively comprises a dust removal filter screen, a snakelike cooling pipe and a high-power fan, fan blades are arranged at the front end of a rotating shaft of the high-power fan, and the rear part of the rotating shaft of the high-power fan is connected with a motor velometer; the two ends of the serpentine cooling pipe are respectively connected with a cold water inlet guide pipe and a hot water outlet guide pipe, the cold water inlet guide pipe is connected with a cooling water pump station, and an external cooling water pump station provides cold water and pressurizes the cold water to push the cold water to enter the serpentine cooling pipe; the control system comprises a ventilation system controller and a plurality of temperature measuring sensors, wherein the ventilation system controller is respectively connected with the high-power fan, the cooling water pump station and the temperature measuring sensors, and the rotating speed of the high-power fan is controlled through the motor driver.
And the air outlet pipeline and the air inlet pipeline are respectively provided with an air outlet and an air inlet.
The plurality of temperature measuring sensors are distributed on the outer side of the ventilation pipeline of each carriage of the shield tunneling machine.
The dust removal filter screen material is 304 type stainless steel filter screens, is equipped with the three-layer, and the structural parameter of every layer of filter screen is as follows: first layer 12 of dust removal screen: the diameter of the filament is 0.7mm, and the aperture is 4.5 mm; second layer 13 of dust removal screen: the diameter of the filament is 0.3mm, and the aperture is 2.3 mm; third layer 14 of dust-removing filter screen: the diameter of the filament is 0.27mm, and the diameter of the aperture is 1.6 mm.
The side surface of the dust removal filter screen is of an openable structure, so that the dust removal filter screen can be cleaned and replaced at the later stage conveniently.
The serpentine cooling pipe is bent into a serpentine bent pipe and is made of a red copper pipe with the outer diameter of 42 mm-T2.
The snakelike cooling pipe is provided with a water inlet and a water outlet respectively, the water inlet and the water outlet are connected with a cold water inlet conduit and a hot water outlet conduit respectively, cold water enters the snakelike cooling pipe from the cold water inlet conduit through the water inlet, and hot water after heat exchange is discharged from the hot water outlet conduit through the water outlet.
The ventilation system controller is composed of an embedded single chip microcomputer circuit and comprises an STM32 series embedded chip, a motor driver module, a touch display screen and keys.
Has the advantages that: on the basis of the original ventilation pipeline, a dust removal filter screen and a cooling grid are added, so that dust in the tunnel is filtered and cooled; meanwhile, the temperature inside the tunnel is monitored through a temperature sensor, and the rotating speed of the fan is automatically adjusted to control the air inlet amount of the ventilation pipeline.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the electrical connections of the controller of the ventilation system of the present invention;
FIG. 3 is a schematic front view of a dust removal screen according to the present invention;
FIG. 4 is a schematic top view of a dust screen structure of the present invention;
FIG. 5 is a schematic front view of a cooling pipe network structure according to the present invention;
FIG. 6 is a schematic plan view of a cooling pipe network structure according to the present invention.
In the figure: 1 air outlet, 2 air inlets, 3 air outlet pipelines, 4 air inlet pipelines, 5 air storage cylinders, 6 dust removal filter screens, 7 cooling water pump stations, 8 serpentine cooling pipes, 9 cold water inlet pipes, 10 hot water outlet pipes, 12 first layers of dust removal filter screens, 13 second layers of dust removal filter screens, 14 third layers of dust removal filter screens, 15 water inlets, 16 water outlets, 17 fan blades, 18 high-power fans, 19 motor velometer, 20 ventilation system controllers and 21 temperature measurement sensors.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-6, the present invention provides a ventilation pipe control system of a soil pressure balance type shield machine, which comprises a ventilation system and a control system, wherein the ventilation system comprises an air outlet pipeline 3, an air inlet pipeline 4 and an air storage barrel 5, the air outlet pipeline 3 and the air inlet pipeline 4 are arranged at two ends of the air storage barrel 5, a three-stage structure is arranged inside an air inlet side of the air storage barrel 5, the three-stage structure is respectively a dust removal filter screen 6, a serpentine cooling pipe 8 and a high-power fan 18, a fan blade 17 is arranged at a front end of a rotating shaft of the high-power fan 18, a motor velometer 19 is connected at a rear portion of the rotating shaft, and a power supply of the high-power fan 18 is connected with a motor driver of a ventilation system controller 20; the two ends of the serpentine cooling pipe 8 are respectively connected with a cold water inlet guide pipe 9 and a hot water outlet guide pipe 10, the cold water inlet guide pipe 9 is connected with a cooling water pump station 7, and the external cooling water pump station 7 provides cold water and pressurizes and pushes the cold water to enter the serpentine cooling pipe 8; the control system comprises a ventilation system controller 20 and a plurality of temperature measuring sensors 21, wherein the ventilation system controller 20 is respectively connected with the high-power fan 18, the cooling water pump station 7 and the temperature measuring sensors 21, and the rotating speed of the high-power fan 18 is controlled through a motor driver.
The end parts of the air outlet pipeline 3 and the air inlet pipeline 4 are respectively provided with an air outlet 1 and an air inlet 2.
The plurality of temperature sensors 21 are distributed on the outer side of the ventilation pipeline of each carriage of the shield tunneling machine, and the temperature sensors 21 are connected with the ventilation system controller.
The 6 materials of dust removal filter screen are 304 type stainless steel filter screens, are equipped with the three-layer, and the structural parameter of every layer of filter screen is as follows, the first layer 12 of dust removal filter screen: the diameter of the filament is 0.7mm, and the aperture is 4.5 mm; second layer 13 of dust removal screen: the diameter of the filament is 0.3mm, and the aperture is 2.3 mm; third layer 14 of dust-removing filter screen: the diameter of the filament is 0.27mm, and the diameter of the aperture is 1.6 mm.
The side surface of the dust removal filter screen 6 is of an openable structure, so that the dust removal filter screen can be cleaned and replaced at the later stage conveniently.
The serpentine cooling pipe 8 is bent into a serpentine bent pipe and is made of a copper pipe with the outer diameter of 42 mm-T2.
The serpentine cooling pipe 8 is respectively provided with a water inlet 15 and a water outlet 16, the water inlet 15 and the water outlet 16 are respectively connected with a cold water inlet conduit 9 and a hot water outlet conduit 10, cold water enters the serpentine cooling pipe 8 from the cold water inlet conduit 9 through the water inlet 15, and hot water after heat exchange is discharged from the hot water outlet conduit 10 through the water outlet 16.
The ventilation system controller is composed of an embedded single chip microcomputer circuit and comprises an STM32 series embedded chip, a motor driver module, a touch display screen and keys.
The working process is as follows: switching on a system power supply, starting the rotation of the fan blades and starting the work of the temperature measuring sensor; when the temperature sensor monitors that the temperature in the tunnel is higher than the set temperature C, the rotating speed of the fan is increased; and in the working process of the motor, reading the data of the temperature measuring sensor in real time. If the temperature in the tunnel continues to rise after the set time t minutes, the rotating speed of the motor is increased to the maximum through the ventilation system controller, and meanwhile, the cooling water pump station is started to enable the serpentine cooling pipe to start working, so that the temperature in the tunnel is further reduced. After the ventilation control system starts to work comprehensively, acquiring temperature measurement sensor data every 2 minutes, and judging whether the current tunnel internal temperature Cn is less than a set temperature C; if Cn < C is established, the ventilation system controller closes the cooling pump station and reduces the rotating speed of the fan; if Cn < C does not hold, the ventilation system continues to work until the temperature is reduced to the set range.
In the dryer working process that stores up, the inside air in tunnel gets into from going into wind gap 2, reach storage dryer 5 through inlet duct 4, at first filter the dust in the air through dust removal filter screen 6 in storage dryer 5, the three-layer network structure of dust removal filter screen can filter the dust in the air step by step, the air after the filtration continues to flow forward and cools down the air of flowing through snakelike cooling tube 8, snakelike cooling tube is gone into cold water from cold water inlet pipe 9 snakelike cooling tube through cooling water pump station 7, carry out the heat exchange with steam in snakelike cooling tube after, discharge hot water from hot water outlet pipe 10. At the moment, the temperature of air in the air storage cylinder is reduced, the air continues to flow forwards and comes to the fan blades 17, the fan blades 17 are driven by a high-power fan 18 to operate to drive the air in the air storage cylinder to flow, the rotating speed of the fan can be adjusted, the rotating speed of the fan is collected by a motor speed measurer 19 at the rear part of the fan and is sent to a ventilation controller, the ventilation controller controls the rotating speed of the motor to be increased or decreased after program calculation according to the temperature collected by a temperature measuring sensor, finally processed air reaches the air outlet 1 through the air outlet pipeline 3, and the air after dust removal and temperature reduction is discharged, so that the tunnel temperature is reduced and the dust removal effect is achieved.
On the basis of the original ventilation pipeline, a dust removal filter screen and a cooling grid are added, so that dust in the tunnel is filtered and cooled; meanwhile, the temperature inside the tunnel is monitored through the temperature sensor, the rotating speed of the fan is automatically adjusted to control the air inlet amount of the ventilating duct, the temperature inside the tunnel is automatically adjusted, and the dust content inside the tunnel is reduced.
The above-described embodiments of the utility model are intended to be illustrative only and are not intended to be limiting, as all changes that come within the scope of or equivalence to the utility model are intended to be embraced therein.
Claims (8)
1. The utility model provides a soil pressure balance formula shield constructs quick-witted ventilation pipe control system which characterized in that: the air-conditioning system comprises a ventilation system and a control system, wherein the ventilation system comprises an air outlet pipeline (3), an air inlet pipeline (4) and an air storage barrel (5), the air outlet pipeline (3) and the air inlet pipeline (4) are arranged at two ends of the air storage barrel (5), a three-stage structure is arranged inside the air inlet side of the air storage barrel (5) and respectively comprises a dust removal filter screen (6), a snakelike cooling pipe (8) and a high-power fan (18), a fan blade (17) is arranged at the front end of a rotating shaft of the high-power fan (18), and the rear part of the rotating shaft of the high-power fan (18) is connected with a motor velometer (19); two ends of the serpentine cooling pipe (8) are respectively connected with a cold water inlet guide pipe (9) and a hot water outlet guide pipe (10), the cold water inlet guide pipe (9) is connected with a cooling water pump station (7), and the external cooling water pump station (7) provides cold water and pressurizes and pushes the cold water to enter the serpentine cooling pipe (8); the control system comprises a ventilation system controller (20) and a plurality of temperature measurement sensors (21), wherein the ventilation system controller (20) is respectively connected with the high-power fan (18), the cooling water pump station (7) and the temperature measurement sensors (21), and the rotating speed of the high-power fan (18) is controlled through the motor driver.
2. The earth pressure balance type shield machine ventilation pipe control system according to claim 1, characterized in that: the end parts of the air outlet pipeline (3) and the air inlet pipeline (4) are respectively provided with an air outlet (1) and an air inlet (2).
3. The earth pressure balance type shield machine ventilation pipe control system according to claim 1, characterized in that: the plurality of temperature measuring sensors (21) are distributed on the outer side of the ventilation pipeline of each carriage of the shield tunneling machine.
4. The earth pressure balance type shield machine ventilation pipe control system according to claim 1, characterized in that: the material of the dust removal filter screen (6) is 304 type stainless steel filter screens, three layers are arranged, and the structural parameters of each layer of filter screen are as follows: first layer (12) of dust screen: the diameter of the filament is 0.7mm, and the aperture is 4.5 mm; second layer of dust screen (13): the diameter of the filament is 0.3mm, and the aperture is 2.3 mm; third layer (14) of dust screen: the diameter of the filament is 0.27mm, and the diameter of the aperture is 1.6 mm.
5. The earth pressure balance type shield machine ventilation pipe control system according to claim 1, characterized in that: the side surface of the dust removal filter screen (6) is of an openable structure, so that the dust removal filter screen can be cleaned and replaced at the later stage conveniently.
6. The earth pressure balance type shield machine ventilation pipe control system according to claim 1, characterized in that: the serpentine cooling pipe (8) is in a serpentine bent pipe shape and is made of a red copper pipe with the outer diameter of 42 mm-T2.
7. The earth pressure balance type shield machine ventilation pipe control system according to claim 1, characterized in that: the snakelike cooling pipe (8) is provided with a water inlet (15) and a water outlet (16) respectively, the water inlet (15) and the water outlet (16) are connected with a cold water inlet conduit (9) and a hot water outlet conduit (10) respectively, cold water enters the snakelike cooling pipe (8) from the cold water inlet conduit (9) through the water inlet (15), and hot water after heat exchange is discharged from the hot water outlet conduit (10) through the water outlet (16).
8. The earth pressure balanced shield tunneling machine ventilation pipe control system according to any one of claims 1-7, characterized in that: the ventilation system controller is composed of an embedded single chip microcomputer circuit and comprises an STM32 series embedded chip, a motor driver module, a touch display screen and keys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121050664.0U CN215520882U (en) | 2021-05-17 | 2021-05-17 | Earth pressure balance type shield machine ventilation pipe control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121050664.0U CN215520882U (en) | 2021-05-17 | 2021-05-17 | Earth pressure balance type shield machine ventilation pipe control system |
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| Publication Number | Publication Date |
|---|---|
| CN215520882U true CN215520882U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121050664.0U Active CN215520882U (en) | 2021-05-17 | 2021-05-17 | Earth pressure balance type shield machine ventilation pipe control system |
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|---|---|
| CN (1) | CN215520882U (en) |
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2021
- 2021-05-17 CN CN202121050664.0U patent/CN215520882U/en active Active
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