CN205842930U - A kind of pipe gallery fire compartment ventilating system - Google Patents
A kind of pipe gallery fire compartment ventilating system Download PDFInfo
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- CN205842930U CN205842930U CN201620536024.3U CN201620536024U CN205842930U CN 205842930 U CN205842930 U CN 205842930U CN 201620536024 U CN201620536024 U CN 201620536024U CN 205842930 U CN205842930 U CN 205842930U
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- fire
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- pipe gallery
- temperature
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Abstract
This utility model provides a kind of pipe gallery fire compartment ventilating system, including sets of temperature sensors, ammeter, fire detector, controller, converter and Induced fan；Wherein sets of temperature sensors includes the first temperature sensor being arranged on fire compartment import and is arranged on bottom fire compartment for gathering the second temperature sensor of soil grass-root temperature；Ammeter is connected in the cable in fire district；Fire detector is arranged in fire compartment；The outfan of sets of temperature sensors, ammeter and fire detector is connected with the input of controller respectively, and the outfan of controller is connected with Induced fan by converter.This utility model is by judging the signal of Real-time Collection, fire and two kinds of situations of non-fire are divided to reach to automatically control the purpose of the outlet temperature of pipe gallery fire compartment by the rotating speed of adjustment Induced fan respectively, fast and automatically pipe gallery outlet temperature can be controlled, thus significantly improve the ventilation effect of pipe gallery.
Description
Technical field
This utility model belongs to municipal works field, specific design one pipe gallery fire compartment ventilating system.
Background technology
Pipe gallery is that a kind of multiple underground utilities such as plumbing, electric power, communication, combustion gas that can accommodate are in the municipal administration of one
Infrastructure.Entering 21 century, the urbanization process of China is accelerated to advance, and urban environment improves and the shortage of all kinds of public resources
Pressure increased severely with day, and underground pipe gallery is as the comprehensive carrier of Municipal pipeline, it is possible to achieve the collection of all kinds of municipal pipelines
Reduction, unitized, standardized construction and management, change that current City Buried Pipeline is crisscross, disorderly and unsystematic, maintenance frequently
Present situation, the level of security improving the utilization ratio of urban underground space and underground municipal pipeline is had highly important reality
Meaning.
Owing to pipe gallery is in underground, the draft type of selection should guarantee that piping lane has good leading to when normal operation
Wind environment, guarantee again piping lane under accident conditions be conducive to ventilation, control fire spread the evacuation with personnel.Normally
In the case of, pipe gallery uses gravity-flow ventilation ventilatory state, utilizes the temperature difference and Action of Wind pressure to form air circulation, and adopt in piping lane
It is aided with the induction ventilation technology without airduct on the basis of being used in gravity-flow ventilation, in piping lane, i.e. arranges induced air along the longitudinal direction
Machine, makes outdoor fresh air flow to exhaust outlet with relay form after natural air inlet mouth enters piping lane, reaches ventilation effect, improve
Piping lane inner air quality.But at present pipe gallery fire compartment ventilating system generally have that control accuracy is low, rapidity difference with
And the feature that automaticity is the highest.Then, design and high-precision be applied to the automatic of pipe gallery fire compartment ventilating system
Control method becomes one, pipe gallery Ventilation Control field technical barrier urgently to be resolved hurrily.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of pipe gallery fire compartment ventilating system, it is possible to fast
Speed, automatically pipe gallery outlet temperature is controlled.
The technical scheme that this utility model is taked by the above-mentioned technical problem of solution is: a kind of pipe gallery fire compartment is led to
Wind system, it is characterised in that: it includes sets of temperature sensors, ammeter, fire detector, controller, converter and induced air
Machine；Wherein sets of temperature sensors includes the first temperature sensor being arranged on fire compartment import and is arranged on bottom fire compartment
For gathering the second temperature sensor of soil grass-root temperature；Ammeter is connected in the cable in fire district；Fire detector
It is arranged in fire compartment；The outfan of sets of temperature sensors, ammeter and fire detector respectively with the input of controller
Connecting, the outfan of controller is connected with Induced fan by converter.
By such scheme, described controller is PLC.
By such scheme, described Induced fan is synchronous motor.
The beneficial effects of the utility model are: by judging the signal of Real-time Collection, point fire and non-fire two
The situation of kind reaches to automatically control the purpose of the outlet temperature of pipe gallery fire compartment by the rotating speed of adjustment Induced fan respectively,
Pipe gallery outlet temperature can be controlled by fast and automatically, thus significantly improves the ventilation effect of pipe gallery.
Accompanying drawing explanation
Fig. 1 is the ventilation system setups schematic diagram of this utility model one embodiment.
Fig. 2 is the hardware configuration theory diagram of this utility model one embodiment.
Fig. 3 is the fire compartment outlet temperature set-point curve under the non-fire condition of this utility model one embodiment.
Fig. 4 is the fire compartment outlet temperature set-point curve under the fire condition of this utility model one embodiment.
In figure: 1-first row air port, 1-1-stormproof louvre, 1-2-the first Induced fan, 2-second row air port, 2-1-is rainproof
BAIYE, 2-2-the second Induced fan, 3-blow vent, 3-1-stormproof louvre, 4-1-the first temperature sensor, 4-2-the second temperature passes
Sensor, 5-ammeter, 6-fireproof partition, 7-fire detector.
Detailed description of the invention
Below in conjunction with instantiation and accompanying drawing, this utility model is described further.
As it is shown in figure 1, the pipe gallery fire compartment of the present embodiment includes 1 import (i.e. blow vent 3) and 2 outlets
(i.e. first row air port 1 and second row air port 2), first row air port 1 is provided with stormproof louvre 1-1 and the first Induced fan 1-2, and second
Exhaust outlet is provided with stormproof louvre 2-1 and the second Induced fan 2-2, and blow vent 3 is provided with stormproof louvre 3-1.The present embodiment comprehensive
It is provided with cable and soil in piping lane fire compartment, between cable, is provided with fireproof partition 6, cable arranges ammeter 5, exists respectively
Blow vent 3 and soil grass-root are provided with the first temperature sensing 4-1 and the second temperature sensor 4-2, are provided with fire in fire compartment
Detector 7.
A kind of pipe gallery fire compartment ventilating system of the present embodiment, including sets of temperature sensors, ammeter 5, fire
Detector 7, controller, converter and Induced fan (the i.e. first Induced fan 1-2 and the second Induced fan 2-2)；Wherein temperature
Sensor group includes the first temperature sensor 4-1 being arranged on fire compartment import and is arranged on bottom fire compartment for gathering
Second temperature sensor 4-2 of soil grass-root temperature；Ammeter 5 is connected in the cable in fire district；Fire detector 7 is arranged
In fire compartment；Fig. 2 is the hardware configuration theory diagram of this utility model one embodiment, sets of temperature sensors, ammeter 5 and
The outfan of fire detector 7 is connected with the input of controller respectively, and the outfan of controller passes through converter and induced air
Machine connects.
In the present embodiment, each described fire compartment is provided with 2 outlets, and the control mode of each outlet is identical；Control
Device is PLC, and its hardware configuration theory diagram is as shown in Figure 2；Induced fan is synchronous motor.
Operation principle of the present utility model is: obtain the fire signal in fire compartment according to fire detector, it is judged that existing
State in fire compartment be fire be also non-fire；Utilize the fire preset or the outlet temperature of fire compartment corresponding to non-fire
Degree set-point curve, controller output corresponding control signal, and then change the output frequency of converter, thus control Induced fan
Rotating speed.
The rotating speed V (m/s) of Induced fan meets:
In formula: L is the width (m) of fire compartment, H is the height of fire compartment, and q is specific heat at constant pressure (the W s/ of air
(cm3DEG C)), ReFor the thermal resistance (DEG C cm/W) of soil, n is the cable radical (dimensionless) of fire compartment, and r is fire compartment
The average resistance (Ω/cm) of unit cable length；T2For the temperature of fire compartment outlet, the fire compartment the preset temperature exported
Degree set-point curve determines.
The rotating speed V (m/s) of Induced fan with the relation of the output frequency f (Hz) of converter is:
V=60f/P
In formula, P is the number of pole-pairs (dimensionless) of motor.
Before native system application, need to carry out system setting: the width L of one fire compartment of preset comprehensive piping lane, comprehensive
The height H of one fire compartment of piping lane, the specific heat at constant pressure q of air, the thermal resistivity R of soile, the cable root of a fire compartment
Number n, average resistance r of a fire compartment unit cable length, the fire prevention that inputs two kinds of situations in PLC respectively divide
The temperature given value curve of district's outlet, the first situation is normal condition (under the most non-fire condition) temperature given value curve 1, as
Shown in Fig. 3；The second situation is abnormal condition (i.e. under fire condition) temperature given value curve 2, as shown in Figure 4.According to adopting
Integrate to one fire compartment fire alarm signal of pipe gallery as "true" or "false", it is judged that call the temperature of PLC to
The settled value curve 1 or temperature given value curve 2.Fig. 3 and Fig. 4 only provides a concrete example, and temperature given value curve is one
Individual default curve, when specifically applying, can reasonably adjust according to practical experience and fire data, thus to this be
System and method improve, to reach more preferable ventilation effect.This utility model only protects the construction features of ventilating system with hard
Part construction features, software therein can be set according to practical experience.
Above example is merely to illustrate design philosophy of the present utility model and feature, in its object is to make this area
Technical staff will appreciate that content of the present utility model and implements according to this, and protection domain of the present utility model is not limited to above-mentioned enforcement
Example.So, all equivalent variations made according to the principle disclosed in this utility model, mentality of designing or modification, all in this practicality
Within novel protection domain.
Claims (3)
1. a pipe gallery fire compartment ventilating system, it is characterised in that: it includes sets of temperature sensors, ammeter, fire
Detector, controller, converter and Induced fan；Wherein sets of temperature sensors includes the first temperature being arranged on fire compartment import
Spend sensor and be arranged on bottom fire compartment for gathering the second temperature sensor of soil grass-root temperature；Ammeter is connected on
In cable in fire district；Fire detector is arranged in fire compartment；Sets of temperature sensors, ammeter and fire detector
Outfan is connected with the input of controller respectively, and the outfan of controller is connected with Induced fan by converter.
A kind of pipe gallery fire compartment ventilating system the most according to claim 1, it is characterised in that: described controller
For PLC.
A kind of pipe gallery fire compartment ventilating system the most according to claim 1, it is characterised in that: described induced air
Machine is synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536024.3U CN205842930U (en) | 2016-06-03 | 2016-06-03 | A kind of pipe gallery fire compartment ventilating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536024.3U CN205842930U (en) | 2016-06-03 | 2016-06-03 | A kind of pipe gallery fire compartment ventilating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205842930U true CN205842930U (en) | 2016-12-28 |
Family
ID=57623543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620536024.3U Active CN205842930U (en) | 2016-06-03 | 2016-06-03 | A kind of pipe gallery fire compartment ventilating system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205842930U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726525A (en) * | 2017-10-10 | 2018-02-23 | 上海市政工程设计研究总院（集团）有限公司 | A kind of pipe gallery Moistureproof dehumidification ventilating system and its implementation |
| CN109871973A (en) * | 2017-12-01 | 2019-06-11 | 中冶长天国际工程有限责任公司 | A kind of Urban Underground pipe gallery intelligent guide method and system |
-
2016
- 2016-06-03 CN CN201620536024.3U patent/CN205842930U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726525A (en) * | 2017-10-10 | 2018-02-23 | 上海市政工程设计研究总院（集团）有限公司 | A kind of pipe gallery Moistureproof dehumidification ventilating system and its implementation |
| CN109871973A (en) * | 2017-12-01 | 2019-06-11 | 中冶长天国际工程有限责任公司 | A kind of Urban Underground pipe gallery intelligent guide method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201119 Address after: 430223. 33, University Road, East Lake Development Zone, Wuhan, Hubei Patentee after: WISDRI URBAN CONSTRUCTION ENGINEERING TECHNOLOGY Co.,Ltd. Patentee after: China Metallurgical South Engineering Technology Co.,Ltd. Address before: 430223. 33, University Road, East Lake New Technology Development Zone, Wuhan, Hubei Patentee before: China Metallurgical South Engineering Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |