Built-in smoke exhaust and ventilation duct monitoring system for cavity floor system

Abstract

The invention belongs to the technical field of building fire fighting and ventilation, and particularly relates to a cavity floor system built-in smoke exhaust and ventilation duct monitoring system which is characterized in that a smoke exhaust channel and a ventilation channel are arranged in a cavity floor system; the smoke exhaust port is formed in the cavity floor system and is communicated with the smoke exhaust channel; the ventilation port is formed in the cavity floor system and is communicated with the ventilation channel; the smoke exhaust device is arranged in the smoke exhaust channel; the ventilation device is arranged on the cavity floor system and located at the ventilation opening. The detection device is arranged on the cavity floor system. The smoke exhaust channel and the ventilation channel are divided in the cavity floor system, the shared cavity space is adopted, the building space is saved, meanwhile, the smoke exhaust channel and the indoor environment are monitored in real time through the monitoring device, the problems of blockage, air leakage, fire hazards and the like can be found in time, the air volume can be adjusted according to actual environment data, and energy consumption is reduced; the reliability and safety of the smoke exhaust ventilation system are greatly improved, the workload of manual inspection is reduced, and the monitoring efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of building fire protection and ventilation, and in particular relates to a built-in smoke exhaust ventilation duct monitoring system for a cavity floor. Background Art

[0002] In traditional buildings, the smoke exhaust system and ventilation system are mostly designed independently, occupying a large space and being complex to install. In modern buildings, cavity floors are widely used because of their advantages of saving building materials, reducing the weight of the structure, and improving space utilization. At the same time, smoke exhaust ducts play a key role in ensuring the air quality in the building and preventing the spread of smoke during fires. At present, it is a common design method to build smoke exhaust ducts into cavity floors, but there are many problems with the existing technology: there is a lack of effective monitoring methods, and it is difficult to understand the operating status of the smoke exhaust ducts in real time, such as whether there are blockages, air leaks, etc.; traditional monitoring methods often require manual regular inspections, which are inefficient and inaccurate, and cannot detect hidden faults in a timely manner. Once a fire occurs, poor smoke exhaust ventilation will seriously threaten the safety of people's lives and property. Summary of the Invention

[0003] The present invention aims to provide a monitoring system for a smoke exhaust ventilation duct built into a cavity floor, so as to solve the technical problem of being unable to monitor the operating status of the smoke exhaust ventilation duct in real time.

[0004] In order to solve the above technical problems, the specific technical solutions of the present invention are as follows:

[0005] In some embodiments of the present application, a system for monitoring a built-in smoke exhaust duct in a cavity floor is provided, comprising:

[0006] A cavity floor, wherein a smoke exhaust passage and a ventilation passage are provided inside the cavity floor;

[0007] A smoke exhaust port is provided on the cavity floor and is connected to the smoke exhaust passage;

[0008] A ventilation port is provided on the cavity floor and is communicated with the ventilation passage;

[0009] A smoke exhaust device, the smoke exhaust device being arranged inside the smoke exhaust passage;

[0010] A ventilation device is provided on the cavity floor at the ventilation port;

[0011] The monitoring device is arranged on the cavity floor, and collects data parameters of the smoke exhaust channel and the cavity floor, thereby issuing action instructions to the smoke exhaust device and the ventilation device.

[0012] In some embodiments of the present application, the cavity floor is composed of a bottom plate and a top plate, a cavity is reserved inside, and a supporting device is provided inside the cavity, so that the supporting device divides the cavity into a smoke exhaust channel and a ventilation channel. The top plate and bottom plate of the cavity floor are cast with concrete, and a horizontal and vertical crisscross steel mesh is provided inside.

[0013] In some embodiments of the present application, the supporting device is a cast structure or a modular structure, on which a plurality of sensing elements are provided, wherein the sensing elements are also provided on the bottom plate of the cavity floor, and the sensing elements are electrically connected to the monitoring device.

[0014] In some embodiments of the present application, the sensing element includes:

[0015] Temperature and humidity detection components, which are respectively arranged on the bottom plate of the cavity floor and in the smoke exhaust channel, and are electrically connected to the monitoring device;

[0016] A CO concentration detection component is provided on the bottom plate of the cavity floor and is electrically connected to the monitoring device;

[0017] A smoke detection assembly is provided on the bottom plate of the cavity floor and is electrically connected to the monitoring device;

[0018] The pressure detection component is arranged in the smoke exhaust channel and the ventilation channel, and is electrically connected to the monitoring device.

[0019] In some embodiments of the present application, the smoke exhaust device is a combined structure, including:

[0020] Boxes, each of which is arranged in the functional cavity and has an installation cavity inside;

[0021] The box body is provided with a fireproof coating;

[0022] The sleeves are respectively provided on both sides of the box body, and respectively connect the two adjacent boxes to each other;

[0023] A fire damper is provided in the installation cavity, one end of which is connected to the sleeve and is electrically connected to the monitoring device;

[0024] The smoke exhaust valve is arranged in the installation cavity, one end of which is connected to the fire damper, the other end is connected to the sleeve, and the other end is connected to the monitoring device for electrical signal connection.

[0025] In some embodiments of the present application, the monitoring device includes:

[0026] A data acquisition module receives data collected by the sensing element and performs format conversion;

[0027] A transmission module, which transmits the data collected by the data collection module via a wired or wireless method;

[0028] A control module, which is electrically connected to the transmission module, receives data transmitted by the transmission module, performs analysis and processing, and generates corresponding action instructions;

[0029] A time module, connected to the control module, providing time data to the control module;

[0030] A storage module, the storage module is electrically connected to the control module and records the data information collected by the data collection module;

[0031] The display module is electrically connected to the control module and displays the current internal parameter data of the smoke exhaust channel and the indoor parameter data.

[0032] Compared with the existing technology, the beneficial effect of the present invention is that by dividing the smoke exhaust and ventilation channels inside the cavity floor, a common cavity space is used to save building space. At the same time, the smoke exhaust channels and indoor environment are monitored in real time through the monitoring device, which not only can timely discover problems such as blockage, air leakage, and fire hazards, but also can adjust the air volume according to actual environmental data, reduce energy consumption, greatly improve the reliability and safety of the smoke exhaust and ventilation system, reduce the workload of manual inspection, and improve monitoring efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0034] Figure 1 A schematic diagram of the internal structure of a cavity floor provided in an embodiment of the present invention;

[0035] Figure 2 A schematic diagram of the internal structure of a smoke exhaust device provided in an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of a fire on the lower surface of a cavity floor provided by an embodiment of the present invention;

[0037] Figure 4 A schematic diagram of a cavity floor exposed to fire on its side provided by an embodiment of the present invention;

[0038] Figure 5 A schematic diagram of a cavity floor exposed to fire on its side provided by an embodiment of the present invention;

[0039] Figure 6 A schematic structural diagram of a guide plate provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0041] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0042] Example 1

[0043] See attached Figure 1-5 As shown, according to the embodiment of the present application, it includes:

[0044] A cavity floor 1 is provided with one or more smoke exhaust ducts 102 and ventilation ducts 103. In other words, the cavity floor 1 is composed of a bottom plate and a top plate, with a cavity 101 reserved therein. A support device 2 is provided within the cavity 101, so that the support device 2 divides the cavity 101 into the smoke exhaust duct 102 and the ventilation duct 103. The top and bottom plates of the cavity floor 1 are cast in concrete, and are provided with a steel mesh interlaced horizontally and vertically. To enhance fire resistance, a fireproofing board is provided on the inner wall of the cavity 101. The support device 2 is a cast or modular structure, and is provided with a plurality of sensing elements. The sensing elements are also provided on the bottom plate of the cavity floor 1 and in the smoke exhaust duct 102 and ventilation duct 103. The sensing elements are electrically connected to a monitoring device.

[0045] It should be noted that the sensing elements include:

[0046] The temperature and humidity detection components are temperature sensors and humidity sensors, which are respectively arranged on the bottom plate of the cavity floor 1, in the cavity 101 and in the smoke exhaust duct 102, and are electrically connected to the monitoring device for detecting indoor temperature and humidity, as well as the temperature and humidity in the smoke exhaust duct 102 and the temperature and humidity in the cavity 101;

[0047] The CO concentration detection component is a CO concentration detector, which is arranged on the bottom plate of the cavity floor 1 and is electrically connected to the monitoring device for monitoring the indoor CO content;

[0048] The smoke detection component is a smoke detector, which is arranged on the bottom plate of the cavity floor 1 and is electrically connected to the monitoring device;

[0049] The pressure detection assembly is a pressure sensor installed in the exhaust duct 102 and ventilation duct 103. It is electrically connected to the monitoring device and is used to monitor changes in air pressure within the exhaust duct 102 and ventilation duct 103 to determine whether there is a blockage. If the pressure in a certain section of the air duct increases abnormally, it can be inferred that there may be a blockage in that area.

[0050] It should be further explained that the temperature and humidity detection components, CO concentration detection components, smoke detection components, and pressure detection components are scattered in different planes to improve monitoring accuracy.

[0051] In order to improve the accuracy of monitoring, an image acquisition component (such as a high-definition camera) can be added to obtain the current indoor image information and compare it with other parameter instructions to improve accuracy.

[0052] A smoke exhaust port is provided on the cavity floor 1 and is connected to the smoke exhaust passage 102;

[0053] A ventilation port is provided on the cavity floor 1 and is connected to the ventilation channel 103;

[0054] It should be noted that the locations of the smoke exhaust vents and ventilation vents are selected according to actual design requirements and are not limited here;

[0055] The smoke exhaust device 3 is arranged inside the smoke exhaust channel 102, wherein the smoke exhaust device 3 includes: a box 3001, each of the boxes 3001 is arranged in a functional cavity, an installation cavity is provided therein, and a fireproof coating is provided on the box 3001;

[0056] The sleeves 3 are respectively provided on both sides of the box body 3001, and respectively connect two adjacent boxes 3001 to each other;

[0057] Fire damper 301, which is arranged in the installation cavity, one end of which is connected to the sleeve 3, and is also electrically connected to the monitoring device;

[0058] The smoke exhaust valve 303 is arranged in the installation cavity, one end of which is connected to the fire damper 301, and the other end is connected to the sleeve 3, and is also connected to the monitoring device for electrical signals.

[0059] The ventilation device is a central air conditioner, a variable frequency fan or other equipment that can accelerate ventilation. The ventilation device is provided on the cavity floor 1 at the ventilation port.

[0060] The monitoring device is arranged on the cavity floor 1, and collects data parameters of the smoke exhaust channel 102 and the cavity floor 1, thereby issuing action instructions to the smoke exhaust device 3 and the ventilation device.

[0061] Through the above technical solution, the technical effects produced in the embodiments of the present application are:

[0062] By dividing the interior of the floor cavity 101 into a smoke exhaust channel 102 and a ventilation channel 103, a shared cavity 101 space is used to save building space. By adding a supporting device 2 in the cavity 101, the overall strength of the floor cavity 101 is improved, and sensing elements are provided on the supporting device 2, the floor bottom plate, the smoke exhaust channel 102 and the ventilation channel 103, so as to facilitate real-time monitoring of data in various environments. The sensing elements can improve monitoring accuracy by monitoring temperature and humidity, CO concentration, smoke concentration, and air pressure, thereby facilitating the provision of accurate data to the monitoring device, thereby enabling the monitoring device to open the fire damper 301 and the smoke exhaust valve 303 of the smoke exhaust device 3, so that the smoke is quickly discharged, providing a basis for realizing real-time monitoring of the operating status of the smoke exhaust ventilation duct.

[0063] Example 2

[0064] See attached Figure 6 As shown, the present embodiment adopts the structure of the above embodiment, wherein a convertible and movable guide plate 104 is provided at the smoke exhaust channel 102 and the ventilation channel 103. During use, the smoke exhaust channel 102 and the ventilation channel 103 can be switched between operating separately and simultaneously by moving the guide plate 104, wherein the guide plate 104 is driven by a stepper motor, and the stepper motor is electrically connected to the monitoring device by signal. The inclination angle of the guide plate 104 can be adjusted, and its activity amount is set according to actual design requirements.

[0065] Through the above technical solution, the technical effects produced in the embodiments of the present application are:

[0066] By adding the guide plate 104, not only can the smoke exhaust channel 102 and the ventilation channel 103 share the space of the cavity 101, but the mode switching can be achieved through the guide plate 104 to save building space. At the same time, the guide plate 104 can be adjusted according to the actual environmental requirements by the monitoring device, and the air volume can be adjusted according to the actual environmental data to reduce energy consumption.

[0067] Example 3

[0068] In some embodiments of the present application, the monitoring device includes:

[0069] A data acquisition module receives data collected by the sensing element and performs format conversion;

[0070] A transmission module, which transmits the data collected by the data acquisition module through a wired or wireless manner (such as RS485 bus, Bluetooth, Wi-Fi, LoRa or NB-IoT module data transmission);

[0071] A control module, which is electrically connected to the transmission module, receives data transmitted by the transmission module, performs analysis and processing, and generates corresponding action instructions. The control module has built-in data analysis software, which analyzes and processes the data according to a preset normal parameter range. Once data anomalies are detected, an alarm message is immediately issued to alert relevant personnel through an audible and visual alarm device, and the alarm message can also be sent to a mobile terminal such as a mobile phone of the manager;

[0072] A time module, connected to the control module, providing time data to the control module;

[0073] A storage module, the storage module is electrically connected to the control module and records the data information collected by the data collection module;

[0074] The display module is electrically connected to the control module by signals, and displays the current internal parameter data of the smoke exhaust channel 102 and the indoor parameter data. A display screen is set in a location such as the building management room to display various monitoring data of the smoke exhaust channel 102, the ventilation channel 103, the indoor room, and the cavity 101 in real time, including pressure values, gas concentration values, etc., so that management personnel can intuitively understand the system operation status.

[0075] In actual application, corresponding sensing elements are provided in each different exhaust passage 102 or ventilation passage 103. When a certain section of the exhaust passage 102 or ventilation passage 103 is blocked, the detection data of the pressure detection component of the section increases, and the detection data of the subsequent pressure detection component decreases, it is determined that the exhaust passage 102 or ventilation passage 103 in the current section is blocked. In order to facilitate the administrator to accurately obtain the problem location, different sensing elements have corresponding numbers, so that the administrator can accurately locate the problem when it is discovered, and then deal with it; under normal circumstances, the user pre-sets the current indoor temperature and humidity. When the indoor temperature and humidity do not reach the expected values, the monitoring device sends a command to the stepper motor to adjust the position of the guide plate 104 so that the ventilation passage 103 Open and smoke exhaust channel 102 are closed, and ventilation operation is performed under the action of the ventilation device. When a fire occurs, the temperature detected by the sensing element at this time increases, the humidity value changes abnormally, the CO concentration increases, and the smoke concentration increases, exceeding the preset threshold value in the control module. At this time, the monitoring device controls the stepper motor to drive the guide plate 104, closes the ventilation channel 103, opens the smoke exhaust channel 102, and opens the fire damper 301 and the smoke exhaust valve 303 at the same time, so that the smoke can be quickly discharged through the smoke exhaust channel 102. The real-time monitoring method is adopted to quickly exhaust the smoke and reduce casualties. When the fire is extinguished, until the detection values of each sensing element return to normal, the monitoring device closes the smoke exhaust channel 102 and opens the ventilation channel, so that the gas in the room flows out quickly, thereby improving the indoor gas quality.

[0076] Through the above technical solution, the technical effects produced in the embodiments of the present application are:

[0077] By adopting multiple sensing elements to monitor the environment in real time, data from the cavity 101, indoor area, smoke exhaust channel 102, and ventilation channel 103 are collected in real time and transmitted via wired or wireless means to improve the response speed. This not only allows the problem location to be accurately located, but also the air volume and working mode can be adjusted according to the environmental data, thereby greatly improving the reliability and safety of the smoke exhaust and ventilation system, reducing the workload of manual inspections, and improving monitoring efficiency and accuracy.

[0078] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0079] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0080] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0081] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0082] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A built-in smoke exhaust ventilation duct monitoring system for a cavity floor, characterized in that: include: A cavity floor, wherein a smoke exhaust passage and a ventilation passage are provided inside the cavity floor; A smoke exhaust port is provided on the cavity floor and is connected to the smoke exhaust passage; A ventilation port is provided on the cavity floor and is communicated with the ventilation passage; A smoke exhaust device, the smoke exhaust device being arranged inside the smoke exhaust passage; A ventilation device is provided on the cavity floor at the ventilation port; The monitoring device is arranged on the cavity floor, and collects data parameters of the smoke exhaust channel and the cavity floor, thereby issuing action instructions to the smoke exhaust device and the ventilation device.

2. The built-in smoke exhaust duct monitoring system for cavity floor according to claim 1 is characterized in that: The cavity floor is composed of a bottom plate and a top plate, with a cavity reserved inside. A supporting device is provided inside the cavity, so that the supporting device divides the cavity into a smoke exhaust channel and a ventilation channel. The top plate and bottom plate of the cavity floor are cast with concrete, and a horizontal and vertical staggered steel mesh is provided inside.

3. The built-in smoke exhaust duct monitoring system for cavity floor according to claim 2 is characterized in that: The supporting device is a cast structure or a combined structure, on which a plurality of sensing elements are provided, wherein the sensing elements are also provided on the bottom plate of the cavity floor, and the sensing elements are electrically connected to the monitoring device.

4. The built-in smoke exhaust duct monitoring system for cavity floor according to claim 3 is characterized in that: The sensing element comprises: Temperature and humidity detection components, which are respectively arranged on the bottom plate of the cavity floor and in the smoke exhaust channel, and are electrically connected to the monitoring device; A CO concentration detection component is provided on the bottom plate of the cavity floor and is electrically connected to the monitoring device; A smoke detection assembly is provided on the bottom plate of the cavity floor and is electrically connected to the monitoring device; The pressure detection component is arranged in the smoke exhaust channel and the ventilation channel, and is electrically connected to the monitoring device.

5. The built-in smoke exhaust duct monitoring system for cavity floor according to claim 1 is characterized in that: The smoke exhaust device is a combined structure, comprising: Boxes, each of which is arranged in the functional cavity and has an installation cavity inside; The box body is provided with a fireproof coating; The sleeves are respectively provided on both sides of the box body, and respectively connect the two adjacent boxes to each other; A fire damper is provided in the installation cavity, one end of which is connected to the sleeve and is electrically connected to the monitoring device; The smoke exhaust valve is arranged in the installation cavity, one end of which is connected to the fire damper, the other end is connected to the sleeve, and the other end is connected to the monitoring device for electrical signal connection.

6. The built-in smoke exhaust duct monitoring system for cavity floor according to claim 1, characterized in that: The monitoring device comprises: A data acquisition module receives data collected by the sensing element and performs format conversion; A transmission module, which transmits the data collected by the data collection module via a wired or wireless method; A control module, which is electrically connected to the transmission module, receives data transmitted by the transmission module, performs analysis and processing, and generates corresponding action instructions; A time module, connected to the control module, providing time data to the control module; A storage module, the storage module is electrically connected to the control module and records the data information collected by the data collection module; The display module is electrically connected to the control module and displays the current internal parameter data of the smoke exhaust channel and the indoor parameter data.

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