Residual pressure monitoring system without gas production seat
By installing residual pressure detectors in the front room and stairwell of the building, the residual pressure monitoring system of air extraction seats is realized, and the problems of construction difficulty and smoke protection are solved, ensuring the smooth flow of evacuation passages and Smoke-proof effect.
Patent Information
- Application Number
- CN202420869750.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-25
AI Technical Summary
In a building fire, the residual pressure value of the mechanical pressurized air supply system will affect the smoke protection performance, especially when the direction of the evacuation door is opposite to the pressure-pressed air supply force, which will make the evacuation door difficult to open and affect the evacuation of personnel Rescue with firefighters, and due to the difficulty of construction, the gas extraction seat has nowhere to be installed and the air conduit cannot be embedded, which makes it difficult to install the residual pressure monitoring system.
Using a residual pressure monitoring system without gas extraction seats, by installing residual pressure detectors in the front chamber and stairwell, the installation of residual pressure detectors and gas extraction seats is eliminated, and multiple groups of residual pressure controllers and monitors are used for conductive connection. , an algorithm controls the fan bypass valve to realize residual pressure monitoring and control.
Effectively saves the cost of wall openings and pipe layout, solves the problem of construction difficulty, ensures smoke resistance and smooth evacuation passages, avoids the difficulty and cost of re-punching, and is suitable for finished front room and corridor decoration environment.
Smart Images
Figure CN222162428U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ventilation systems, in particular to a residual pressure monitoring system without a gas sampling seat. Background Art
[0002] When a fire occurs in a building, the smokeproof stairwell, refuge corridor and its antechamber are life passages for personnel evacuation and passages for firefighters to put out fires, and their smokeproof performance requirements must be ensured. From the perspective of smoke prevention, the residual pressure value of the mechanical pressurized air supply system is too low, which is not conducive to smoke prevention, so the higher the residual pressure value, the better. However, since the direction of the evacuation door is to open in the direction of evacuation, and the direction of the pressurized air supply force is exactly opposite to the direction of the evacuation door opening, if the residual pressure value is too high, it will cause the pressure difference on both sides of the evacuation door between the stairwell and the antechamber, and the antechamber and the corridor. It will make it difficult to open the evacuation door, especially for the elderly and children, affecting the evacuation of personnel and the rescue of firefighters. Obviously, the design of the pressurized air supply system should first be based on safe evacuation. The whole purpose of the residual pressure monitoring system is to keep the residual pressure value of the stairwell and the antechamber within the national standard range, block the entry of harmful smoke, ensure the normal opening of the fire door, and ensure the smooth flow of life passages. However, there are construction difficulties on many project sites, including:
[0003] 1. As there was no gas pipe and gas collection seat in the early design drawings, no pre-embedding was done on site;
[0004] 2. The decoration of the front room and corridor has been completed, and it is impossible to re-drill holes for pre-embedding, and it is difficult to re-drill holes;
[0005] 3. There is no corridor, and several residents enter the front room as soon as they open the door, so there is no place to install the gas collection seat;
[0006] 4. There is an antechamber between the stairwell and the corridor, which is too long. The air duct was not pre-buried in advance, so the air duct cannot be led to the corridor side. Utility Model Content
[0007] 1. Technical Problems Solved
[0008] The technical problem to be solved by the utility model is that there are construction difficulties on site of many projects and there is nowhere to install the gas production seat.
[0009] 2. Technical Solution
[0010] In order to solve the above technical problems, the technical solution provided by the utility model is: a residual pressure monitoring system without gas extraction seat, including multiple groups of residual pressure detectors, fan bypass valves, multiple groups of residual pressure controllers and residual pressure monitors, the residual pressure detectors are conductively connected to the residual pressure controllers, and the residual pressure controllers are conductively connected to the residual pressure monitors.
[0011] As an improvement, a plurality of groups of the residual pressure controllers are respectively installed in the fan control box.
[0012] 3. Beneficial Effects
[0013] The advantages of the utility model compared with the prior art are: through an algorithm, residual pressure detectors are only installed in the front room and the stairwell, eliminating the need to install residual pressure detector gas sampling seats in the corridor, effectively saving the cost of wall opening and pipe laying. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a structural schematic diagram of a residual pressure monitoring system without gas extraction seat.
[0015] Figure 2 The utility model is a schematic diagram of the installation structure of a residual pressure monitoring system without a gas extraction seat.
[0016] As shown in the figure: 1. Residual pressure monitor; 2. Residual pressure detector; 3. Fan bypass valve; 4. Residual pressure controller. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0018] Embodiment 1
[0019] As attached Figure 1 -Attached Figure 2 As shown, a gas-collecting seat-free residual pressure monitoring system comprises a plurality of residual pressure detectors 2, a fan bypass valve 3, a plurality of residual pressure controllers 4 and a residual pressure monitor 1, wherein the residual pressure detectors 2 are conductively connected to the residual pressure controllers 4, the residual pressure controllers 4 are conductively connected to the residual pressure monitor 1, and the plurality of residual pressure controllers 4 are respectively installed in the fan control box.
[0020] The specific usage is as follows:
[0021] Through the algorithm, the residual pressure detector 2 is only installed in the vestibule and stairwell, eliminating the need to install the residual pressure detector 2 and the gas sampling seat in the corridor, effectively saving the cost of wall drilling and pipe laying, and solving the following practical installation problems: the decoration of the vestibule and corridor has been completed, and it is impossible to re-drill holes and pre-embed them, and re-drilling holes is difficult; there is no corridor, and several households enter the vestibule as soon as they open the door; the distance from the stairwell to the corridor is too long, separated by an vestibule, and the air duct was not pre-embedded in the early stage.
[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
[0024] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A residual pressure monitoring system without a gas extraction seat, comprising a plurality of residual pressure detectors (2), a fan bypass valve (3), a plurality of residual pressure controllers (4) and a residual pressure monitor (1), characterized in that: The residual pressure detector (2) is electrically connected to the residual pressure controller (4), and the residual pressure controller (4) is electrically connected to the residual pressure monitor (1).
2. A residual pressure monitoring system for a gas extraction-free seat according to claim 1, characterized in that: A plurality of groups of the excess pressure controllers (4) are respectively installed in the fan control box.