CN211451303U - Moisture condensation prevention pipe gallery ventilation system - Google Patents
Moisture condensation prevention pipe gallery ventilation system Download PDFInfo
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- CN211451303U CN211451303U CN201922477858.8U CN201922477858U CN211451303U CN 211451303 U CN211451303 U CN 211451303U CN 201922477858 U CN201922477858 U CN 201922477858U CN 211451303 U CN211451303 U CN 211451303U
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- pipe gallery
- ventilation system
- humidity sensor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model discloses an anti-condensation pipe gallery ventilation system, a serial communication port, including being used for received signal and the controller of sending out the instruction after the judgement signal, the controller is connected with: a pipeline temperature sensor and ventilation unit for detecting pipeline outer wall surface temperature. The system can start the fan to automatically ventilate in a proper and favorable ventilation time period, and replace moist air in the pipe gallery with outdoor dry air, so that the aim of improving the air quality in the comprehensive pipe gallery is fulfilled, and the phenomenon of dewing on the surface of a pipeline can be avoided.
Description
Technical Field
The utility model relates to a piping lane ventilation system specifically is a piping lane ventilation system for antisweat.
Background
In recent years, the planning and construction of urban underground space in China is in the spotlight. The planning and construction of the urban comprehensive pipe gallery are particularly valued and promoted by the government of the Chinese cities. According to statistics, the total length of the underground comprehensive pipe gallery built in China exceeds 7000 kilometers, and the underground comprehensive pipe gallery is the longest in the world. The utility tunnel is usually divided into several relatively independent cabins, such as a utility, a power and a gas cabin, etc., according to different functions and safety requirements. The utility tunnel is an important infrastructure and lifeline for ensuring urban operation, and is called urban 'blood vessel' and 'nerve'. Therefore, safe operation of the piping and ancillary equipment within the pipe gallery is a significant concern.
The good internal environment is the premise for ensuring the safe operation of various municipal pipelines and accessory facilities. But as a relatively closed underground space, the air fluidity in the utility tunnel is poor. Since the thermal and electrical lines dissipate heat in the cabin for a long period of time, the cabin tends to be excessively hot. Therefore, the utility tunnel needs to be ventilated to effectively discharge the waste heat in the pipe gallery and provide a proper amount of fresh air for the staff when overhauing. The ventilation system plays a very important role in the safe operation of the pipe gallery.
At present, a ventilation mode combining natural air inlet and mechanical air exhaust is generally adopted in a comprehensive pipe gallery. The ventilation control system is divided into three modes of operation: a natural ventilation mode, in which the exhaust fan is not started at ordinary times and is ventilated by natural convection; the conventional control mode: when the air temperature in the pipe gallery is higher than 40 ℃ or line maintenance is required, the exhaust fan is started; and third, fire alarm mode: and after a fire accident occurs, the exhaust fan is started to exhaust smoke. The summer utility tunnel is very humid, and the relative humidity is great. Therefore, in addition to the above operation modes, the ventilation control system usually selects to start the exhaust fan to ventilate and dehumidify on a sunny day.
However, the inside and outside air temperature difference of piping lane is great, and unreasonable ventilation causes the outdoor air to get into meeting cold behind the piping lane and take place the dewing phenomenon on the pipeline surface easily, leads to the humidity aggravation in the piping lane, as shown in fig. 1 and fig. 2, causes air temperature and dew point temperature to rise in the piping lane after the piping lane ventilates, leads to the pipeline dewing risk to increase, and the ventilation dehumidification effect is not good, causes the pipeline surface to take place the dewing phenomenon after the ventilation.
Disclosure of Invention
In order to solve the problem, the utility model aims to provide an anti-condensation's piping lane ventilation system, the inside and outside air parameter of integrated analysis piping lane, the adequate utilization is suitable, favorable ventilation period ventilates to cause the purpose of pipeline dewfall when reaching the ventilation of avoiding the piping lane.
The utility model provides an anti-condensation pipe gallery ventilation system, is including being used for the controller that sends out the instruction after received signal and judgement signal, the controller is connected with: the device comprises an outdoor temperature and humidity sensor for detecting the temperature and humidity of outdoor air and the dew point temperature, a pipe gallery temperature and humidity sensor for detecting the temperature and humidity of air in a pipe gallery, a pipe gallery wall surface temperature sensor for detecting the temperature of a pipe gallery side wall surface, a pipe temperature sensor for detecting the temperature of a pipe outer wall surface and a ventilation device.
Preferably, the outdoor temperature and humidity sensor is externally provided with a dustproof and waterproof type louver box.
Preferably, the outdoor temperature and humidity sensor is installed on a top plate of the exhaust pavilion and fixed with the top plate through bolts.
Preferably, the height from the installation position of the probe of the outdoor temperature and humidity sensor to the ground is 1.5 m.
Preferably, the pipe gallery temperature and humidity sensor adopts the special waterproof temperature and humidity sensor of utility tunnel.
Preferably, pipe gallery wall temperature sensor sets up in pipe gallery lateral wall middle part.
Preferably, the pipeline temperature sensor is a clamp type pipeline surface mounting type thermal resistance temperature sensor.
The utility model has the advantages that:
(1) the practicability is strong. Only need increase the installation of piping lane wall temperature sensor, pipeline temperature sensor and outdoor multi-functional temperature and humidity sensor on the basis of former ventilation system.
(2) The operation is simple. The controller receives signals transmitted by the outdoor temperature and humidity sensor, the pipe gallery wall surface temperature sensor and the pipeline sensor, analyzes and judges whether the ventilation requirement is met, and automatically opens the fan for ventilation without manual operation.
(3) The risk of condensation is reduced. Replace comparatively moist air in the piping lane with outdoor comparatively dry air, reduce air dew point temperature in the piping lane, avoid the dewfall phenomenon to take place.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 illustrates the effect of ventilation on temperature and humidity within a duct;
FIG. 2 is an illustration of the effect of ventilation on dew point temperature within a pipe gallery;
FIG. 3 is a schematic view of the moisture condensation preventing piping lane ventilation system of the present invention;
in the figure: 1. an outdoor multifunctional temperature and humidity sensor; 2. a pipe gallery temperature and humidity sensor; 3. a pipeline temperature sensor; 4. a pipe gallery wall surface temperature sensor; 5. a ventilation device; 6. and a controller.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 3: an anti-dewing pipe gallery ventilation system comprises an outdoor multifunctional temperature and humidity sensor 1, a pipe gallery temperature and humidity sensor 2, a pipe gallery wall surface temperature sensor 4, a pipeline temperature sensor 3, a ventilation device 5 and a controller 6, the outdoor temperature and humidity sensor detects the temperature and humidity of outdoor air and transmits signals to the controller, the pipe gallery temperature and humidity sensor detects the temperature and humidity in the pipe gallery and transmits signals to the controller, the tube lane wall temperature sensor detects the tube lane side wall temperature and transmits a signal to the controller, the pipeline temperature sensor detects the surface temperature of the outer wall of the pipeline and transmits signals to the controller, the controller receives signals transmitted by the outdoor temperature and humidity sensor, the pipe gallery temperature and humidity sensor and the pipeline sensor, analyzes and judges whether the ventilation requirement is met, and if the ventilation requirement is met, the ventilation device is automatically started to ventilate and dehumidify.
In a preferred embodiment, the outdoor multifunctional temperature and humidity sensor is protected by a dustproof and waterproof type louver box.
In a preferred embodiment, the outdoor temperature and humidity sensor is mounted on the top plate of the wind pavilion nearby and fixed by bolts.
In a preferred embodiment, the height of the installation position of the outdoor multifunctional temperature and humidity sensor probe from the ground is 1.5 m.
In a preferred embodiment, the pipe gallery temperature and humidity sensor adopts a special waterproof temperature and humidity sensor for the comprehensive pipe gallery.
In a preferred embodiment, the pipe rack wall surface temperature sensor is arranged in the middle of the side wall of the pipe rack.
In a preferred embodiment, the pipe temperature sensor is a clamp type pipe surface mounting type thermal resistance temperature sensor.
In a preferred embodiment, the controller meets the switching requirements of ordinary heat removal, routing inspection and accident ventilation.
The specific implementation steps are as follows:
the parameters of the inside and outside environment of the comprehensive pipe gallery are defined by ① relative humidity phi1Dew point temperature t1② relative humidity phi of air in pipe gallery 2③ pipe gallery side wall temperature t 3④ the surface temperature of water supply pipeline in pipe gallery is t4、t4 '(only 2 water supply lines are listed here). The ventilation and dehumidification control mode is as follows: satisfy phi simultaneously within 8:00-18:001≤45%，φ2T is more than or equal to 85 percent1＜min{t3,t4,t4 'And (6) under the condition of (3), automatically starting the fan to ventilate.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides an anti-condensation pipe gallery ventilation system which characterized in that, is including being used for the controller that sends out the instruction after receiving signal and judgement signal, the controller is connected with: the device comprises an outdoor temperature and humidity sensor for detecting the temperature and humidity of outdoor air and the dew point temperature, a pipe gallery temperature and humidity sensor for detecting the temperature and humidity of air in a pipe gallery, a pipe gallery wall surface temperature sensor for detecting the temperature of a pipe gallery side wall surface, a pipe temperature sensor for detecting the temperature of a pipe outer wall surface and a ventilation device.
2. The anti-condensation pipe gallery ventilation system according to claim 1, wherein a dustproof and waterproof type louver box is arranged outside the outdoor temperature and humidity sensor.
3. The anti-condensation pipe gallery ventilation system according to claim 2, wherein the outdoor temperature and humidity sensor is mounted on a top plate of the exhaust booth and fixed with the top plate through bolts.
4. The anti-condensation pipe gallery ventilation system according to claim 2, wherein the height of the probe mounting position of the outdoor temperature and humidity sensor from the ground is 1.5 m.
5. The anti-condensation pipe rack ventilation system according to claim 1, characterized in that the pipe rack temperature and humidity sensor is a waterproof temperature and humidity sensor special for a utility tunnel.
6. The anti-dewing tube rack ventilation system as claimed in claim 1, wherein the tube rack wall temperature sensor is arranged in the middle of the side wall of the tube rack.
7. The anti-dewing tube corridor ventilation system as claimed in claim 1, wherein the tube temperature sensor is a clamp type tube surface mounting type thermal resistance temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922477858.8U CN211451303U (en) | 2019-12-31 | 2019-12-31 | Moisture condensation prevention pipe gallery ventilation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922477858.8U CN211451303U (en) | 2019-12-31 | 2019-12-31 | Moisture condensation prevention pipe gallery ventilation system |
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| CN211451303U true CN211451303U (en) | 2020-09-08 |
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| CN201922477858.8U Active CN211451303U (en) | 2019-12-31 | 2019-12-31 | Moisture condensation prevention pipe gallery ventilation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361560A (en) * | 2020-11-09 | 2021-02-12 | 同方股份有限公司 | Underground space anti-condensation control system and control method thereof |
| CN113739311A (en) * | 2021-08-27 | 2021-12-03 | 北京工业大学 | Utility tunnel entrance section anti-condensation air supply device and implementation method |
| WO2024004553A1 (en) * | 2022-06-27 | 2024-01-04 | 株式会社荏原製作所 | Water detecting device, water detecting system, and water detecting method |
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2019
- 2019-12-31 CN CN201922477858.8U patent/CN211451303U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361560A (en) * | 2020-11-09 | 2021-02-12 | 同方股份有限公司 | Underground space anti-condensation control system and control method thereof |
| CN112361560B (en) * | 2020-11-09 | 2023-08-22 | 同方股份有限公司 | Control method of underground space condensation prevention control system |
| CN113739311A (en) * | 2021-08-27 | 2021-12-03 | 北京工业大学 | Utility tunnel entrance section anti-condensation air supply device and implementation method |
| CN113739311B (en) * | 2021-08-27 | 2022-07-19 | 北京工业大学 | Utility tunnel entrance section anti-condensation air supply device and implementation method |
| WO2024004553A1 (en) * | 2022-06-27 | 2024-01-04 | 株式会社荏原製作所 | Water detecting device, water detecting system, and water detecting method |
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