Fire elevator operation method, fire elevator, computer equipment and storage medium
By obtaining fire signals in the fire elevator and transporting smoke-free air flow into the elevator car, the internal air pressure of the elevator is increased, the problem of flame spread is solved, and the safety of firefighters is ensured.
Patent Information
- Application Number
- CN202510333171.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2025-06-10
AI Technical Summary
In a fire situation, there is a risk that the flames spread to the inside of the elevator when the fire elevator is transported into the fire scene, threatening the safety of the firefighters.
By obtaining the fire signal, smoke-free air flow is transported into the elevator car during the fire state, so that the internal air pressure of the elevator car is higher than the external air pressure, and the delivery of smoke-free air flow is controlled according to the state of the air flow switch, delaying the stop of the air flow to ensure safe withdrawal.
It effectively prevents the spread of flames into the interior of the elevator car, ensuring the safety of fire elevators transporting firefighters into the fire scene.
Smart Images
Figure CN120117486A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of elevators, and in particular, to a method for operating a fire elevator, a fire elevator, a computer device, and a storage medium. Background Art
[0002] In the event of a fire in a building, a fire elevator can quickly transport firefighters and necessary equipment to the fire scene, ensuring that firefighters can promptly carry out evacuation and rescue work, thereby significantly improving the rescue efficiency. However, in the case of a large fire or an unclear fire situation, if firefighters rashly reach the fire floor through the fire elevator and open the elevator door, they may face the risk of the flame instantly spreading into the elevator interior, which poses a serious threat to the personal safety of firefighters. To ensure the safety of fire fighting operations, necessary protective measures need to be taken to avoid potential safety hazards during the fire fighting process. Summary of the Invention
[0003] The purpose of the present invention is to provide a method for operating a fire elevator, a fire elevator, a computer device, and a storage medium, so as to reduce the potential safety hazards when the fire elevator transports firefighters into the fire scene.
[0004] In a first aspect, the method for operating a fire elevator provided by the present invention includes the following steps:
[0005] Obtain a fire signal;
[0006] Under the fire condition, convey a smokeless air flow into the elevator car to make the air pressure inside the elevator car higher than the external air pressure;
[0007] Obtain the control state of the air flow switch inside the elevator car;
[0008] Under the condition of conveying the smokeless air flow into the elevator car, if the air flow switch is closed, delay for a preset time to stop conveying the smokeless air flow into the elevator car.
[0009] In combination with the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the conveying of the smokeless air flow into the elevator car under the fire condition includes:
[0010] Obtain the internal and external air pressures of the elevator car and calculate the difference between the internal and external air pressures of the elevator car;
[0011] If the air pressure difference is lower than a first preset air pressure difference, increase the unit flow rate of the smokeless air flow conveyed into the elevator car.
[0012] In combination with the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein the conveying of the smokeless air flow into the elevator car under the fire condition includes:
[0013] Under the condition that the air pressure difference is lower than the second preset air pressure difference, if the car door switch is triggered, the car door is kept closed.
[0014] Combined with the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein the fire signal includes the position of the floor where the fire breaks out and the position of the floor without fire;
[0015] The conveying of the smokeless air flow into the elevator car in the fire state includes:
[0016] If the elevator car is located on the floor where the fire breaks out, convey the smokeless air flow into the elevator car;
[0017] If the elevator car is located on a floor without fire, start conveying the smokeless air flow into the elevator car from the moment the car door is opened.
[0018] Combined with the third possible implementation manner of the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the conveying of the smokeless air flow into the elevator car in the fire state further includes:
[0019] Compare the height difference between the elevator car and the position of the floor where the fire breaks out;
[0020] If the elevator car is lower than the position of the floor where the fire breaks out, increase the unit flow rate of the smokeless air flow conveyed into the elevator car as the elevator car ascends, and convey the smokeless air flow into the elevator car at a preset unit flow rate as the elevator car descends;
[0021] If the elevator car is higher than the position of the floor where the fire breaks out, gradually increase the unit flow rate of the smokeless air flow conveyed into the elevator car as the elevator car ascends or descends.
[0022] Combined with the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein the fire elevator operation method further includes: if the air flow switch is turned on, convey the smokeless air flow into the elevator car.
[0023] In a second aspect, the fire elevator system provided by the present invention includes:
[0024] A fire situation recognition unit for obtaining a fire signal;
[0025] An air flow control unit for conveying a smokeless air flow into the elevator car in a fire state so that the air pressure inside the elevator car is higher than the external air pressure;
[0026] An air flow switch state recognition unit for obtaining the control state of the air flow switch inside the elevator car;
[0027] A delay control unit, configured to, under the condition of conveying a smokeless air flow into the elevator car, if the air flow switch is closed, stop conveying the smokeless air flow into the elevator car after delaying a preset time.
[0028] In combination with the second aspect, the fire elevator system further includes: an internal air pressure detection unit installed in the elevator car, and an external air pressure detection unit installed outside the elevator shaft on each floor;
[0029] The internal air pressure detection unit and the external air pressure detection unit are respectively connected to the air flow control unit, and the air flow control unit controls the unit flow rate of the smokeless air flow conveyed into the elevator car and the opening and closing of the car door according to the air pressure difference inside and outside the elevator car.
[0030] In a third aspect, the computer device provided by the present invention includes: a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, the steps of the fire elevator operation method described in the first aspect are implemented.
[0031] In a fourth aspect, the computer-readable storage medium provided by the present invention has a computer program stored thereon, and when the computer program is executed by a processor, the steps of the fire elevator operation method described in the first aspect are implemented.
[0032] The embodiments of the present invention bring the following beneficial effects: By obtaining a fire signal, a smokeless air flow is conveyed into the elevator car in a fire state so that the air pressure inside the elevator car is higher than the external air pressure. By obtaining the control state of the air flow switch inside the elevator car, under the condition of conveying the smokeless air flow into the elevator car, if the air flow switch is closed, the conveyance of the smokeless air flow into the elevator car is stopped after delaying a preset time, which can prevent the flame from spreading into the elevator car and ensure the safety of the fire elevator for transporting firefighters into the fire scene.
[0033] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are specifically given below, and detailed descriptions are made in conjunction with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related technical solutions. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0035] Figure 1 It is a schematic flowchart of the fire elevator operation method provided by the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0036] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0037] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For the physical quantities in the formula, if not separately marked, they should be understood as the basic quantities of the basic units of the International System of Units, or the derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.
[0038] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0039] As Figure 1 shown, the fire elevator operation method provided by the embodiment of the present invention includes the following steps: obtaining a fire signal; delivering a smokeless air flow into the elevator car in a fire state so that the air pressure inside the elevator car is higher than the external air pressure; obtaining the control state of the air flow switch inside the elevator car; and under the condition of delivering the smokeless air flow into the elevator car, if the air flow switch is closed, delaying a preset time to stop delivering the smokeless air flow into the elevator car.
[0040] During a fire, by delivering a smokeless air flow into the elevator car, the air pressure inside the elevator car is increased. When the air pressure inside the elevator car is higher than the external air pressure, if the elevator door is opened, the air pressure difference inside and outside the elevator car can prevent the flame from spreading into the car, thereby protecting the safety of the people inside the car, especially suitable for using the elevator car to transport firefighters to the fire scene.
[0041] In addition, for the convenience of controlling the state of the smoke-free air flow transportation, an air flow switch can be set inside the elevator car. When the personnel operate the air flow switch to close, the supply of the smoke-free air flow into the elevator car stops after a preset delay time. The preset time can be set to 30 minutes, 1 hour, or even longer, which can ensure that the personnel inside the car can safely evacuate from the elevator car. Even if the air flow switch is closed after the fire extinguishing is completed, it can also prevent external smoke or hot air from pouring into the elevator car interior.
[0042] In an alternative embodiment, the supply of the smoke-free air flow into the elevator car in the event of a fire includes: obtaining the internal and external air pressures of the elevator car and calculating the difference between the internal and external air pressures of the elevator car; if the pressure difference is lower than a first preset pressure difference, increasing the unit flow rate of the smoke-free air flow supplied into the elevator car. The first preset pressure difference can be configured to be 10 kPa to 100 kPa. Due to the increase in the fire field temperature and air pressure, the difference between the internal and external air pressures of the elevator car needs to reach the first preset pressure difference. When the elevator door is opened, an impact air flow is formed outward through the internal and external air pressures of the elevator car, thereby preventing the smoke or hot air outside the car from pouring into the elevator car interior.
[0043] In an alternative embodiment, the supply of the smoke-free air flow into the elevator car in the event of a fire includes: under the condition that the pressure difference is lower than a second preset pressure difference, if the car door switch is triggered, the car door is kept in the closed state. The second preset pressure difference can be configured to be 1 kPa to 50 kPa. To ensure the safety of the personnel inside the car, when the difference between the internal and external air pressures of the elevator car is insufficient, even if a car door opening signal is generated by the operation, the car door should be kept in the closed state.
[0044] In an alternative embodiment, the fire signal includes the location of the fire floor and the location of the non-fire floor; the supply of the smoke-free air flow into the elevator car in the event of a fire includes: if the elevator car is located on the fire floor, supplying the smoke-free air flow into the elevator car; if the elevator car is located on the non-fire floor, supplying the smoke-free air flow into the elevator car starting from the moment the car door is opened.
[0045] When the elevator car is located on the fire floor and the smoke-free air flow is supplied into the elevator car, even if there is no one in the elevator car, it can also reduce the influence of the flame heating when the car passes through the fire field. When the elevator car is located on the non-fire floor, the smoke-free air flow is only supplied into the elevator car starting from the moment the car door is opened, so that the elevator car can achieve internal pressurization before starting to move up and down, and then the car has the ability to quickly enter the fire field and ensure the safety of the personnel inside the car.
[0046] Further, delivering a smokeless airflow into the elevator car in a fire state further includes: comparing the height difference between the elevator car and the fire floor position; if the elevator car is lower than the fire floor position, increasing the unit flow rate of the smokeless airflow delivered into the elevator car as the elevator car ascends, and delivering the smokeless airflow into the elevator car at a preset unit flow rate as the elevator car descends; if the elevator car is higher than the fire floor position, gradually increasing the unit flow rate of the smokeless airflow delivered into the elevator car as the elevator car ascends or descends.
[0047] When the elevator car is lower than the fire floor position, as the elevator car ascends, the elevator car gradually approaches the fire floor. To prevent the temperature inside the car from rising or smoke from infiltrating, the unit flow rate of the smokeless airflow delivered into the elevator car is gradually increased. If the elevator car is higher than the fire floor position, since the fire smoke in the fire field may rise along the shaft and the lifting and lowering movement of the car will cause air flow changes inside the shaft, the unit flow rate of the smokeless airflow delivered into the elevator car is gradually increased. Furthermore, the air pressure inside the elevator car can be gradually increased, thereby gradually enhancing the effect of the internal and external air pressure difference in preventing the smoke in the shaft from entering the car.
[0048] In an alternative embodiment, the fire elevator operation method further includes: if the air flow switch is turned on, delivering a smokeless airflow into the elevator car. The delivery of the smokeless airflow can be automatically controlled by the controller according to the fire signal, or can be realized by manually operating the air flow switch to turn it on to deliver the smokeless airflow into the elevator car.
[0049] The fire elevator system provided by the embodiment of the present invention includes: a fire condition recognition unit, an air flow control unit, an air flow switch state recognition unit, and a delay control unit; the fire condition recognition unit is used to obtain a fire signal; the air flow control unit is used to deliver a smokeless airflow into the elevator car in a fire state so that the air pressure inside the elevator car is higher than the external air pressure; the air flow switch state recognition unit is used to obtain the operation state of the air flow switch inside the elevator car; the delay control unit is used to stop delivering the smokeless airflow into the elevator car after a preset time delay if the air flow switch is turned off under the condition of delivering the smokeless airflow into the elevator car.
[0050] Among them, the fire condition recognition unit may include a temperature sensor, a smoke sensor, a fire alarm, etc. The air flow control unit includes an air pump and a controller for regulating the operating power of the air pump, etc. The air flow switch state recognition unit corresponds to the air flow switch inside the elevator car and can obtain corresponding change signals according to the on-off state or potential state of the air flow switch. The delay control unit can use a delay switch, or use a timer to delay for a certain time, and then be controlled by the corresponding controller to stop delivering the smokeless airflow. The fire elevator system in this embodiment corresponds to the above fire elevator operation method and has the technical effects of the fire elevator operation method, which will not be elaborated here.
[0051] In an embodiment of the present invention, the fire elevator system further includes: an internal air pressure detection unit installed inside the elevator car, and an external air pressure detection unit installed outside the elevator shaft on each floor; the internal air pressure detection unit and the external air pressure detection unit are respectively connected to the air flow control unit, and the air flow control unit controls the unit flow rate of the smokeless air flow delivered into the elevator car and the opening and closing of the car door according to the air pressure difference inside and outside the elevator car.
[0052] The computer device provided by the embodiment of the present invention includes: a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, the steps of the fire elevator operation method described in the above embodiment are implemented.
[0053] The computer device further includes an input / output interface, a communication interface, a display unit, and an input device. Among them, the controller, the memory, and the input / output interface are connected through a system bus, and the communication interface, the display unit, and the input device are connected to the system bus through the input / output interface. Among them, the controller of the computer device is used to provide computing and control capabilities. The controller of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The input / output interface of the computer device is used for the processor to exchange information with external devices. The communication interface of the computer device is used to communicate with external terminals in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, NFC (Near Field Communication), or other technologies.
[0054] The computer-readable storage medium provided by the embodiment of the present invention stores a computer program thereon, and when the computer program is executed by a processor, the steps of the fire elevator operation method described in the above embodiment are implemented.
[0055] Any reference to a memory, database, or other medium used in the embodiments may include at least one of non-volatile and volatile memories. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.
[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A fire elevator operation method, characterized in that: The following steps are involved: Get fire signal; delivering a smoke-free airflow into the elevator car in a fire state so that the air pressure inside the elevator car is higher than the air pressure outside; Obtaining the control status of the airflow switch inside the elevator car; Under the condition that smoke-free airflow is delivered into the elevator car, if the airflow switch is turned off, delivery of smoke-free airflow into the elevator car is stopped after a preset time.
2. The fire elevator operation method according to claim 1, characterized in that: The delivering of smoke-free airflow into the elevator car in a fire state comprises: Obtaining the internal and external air pressures of the elevator car, and calculating the difference between the internal and external air pressures of the elevator car; If the pressure difference is lower than the first preset pressure difference, the unit flow rate of the smoke-free airflow delivered into the elevator car is increased.
3. The fire elevator operation method according to claim 2, characterized in that: The delivering of smoke-free airflow into the elevator car in a fire state comprises: Under the condition that the air pressure difference is lower than the second preset air pressure difference, if the car door switch is triggered, the car door is kept in a closed state.
4. The fire elevator operation method according to claim 1, characterized in that: The fire signal includes the location of the fire floor and the location of the fire-free floor; The delivering of smoke-free airflow into the elevator car in a fire state comprises: If the elevator car is located on the fire floor, delivering smoke-free airflow into the elevator car; If the elevator car is located at a fire-free floor, a smoke-free airflow is delivered into the elevator car from the moment the car door is opened.
5. The fire elevator operation method according to claim 4, characterized in that: The delivering of smoke-free airflow into the elevator car under fire conditions also includes: Comparing the height difference between the elevator car and the fire floor; If the elevator car is below the fire floor, the unit flow rate of the smoke-free airflow into the elevator car is increased as the elevator car rises, and the smoke-free airflow is delivered into the elevator car at a preset unit flow rate as the elevator car descends; If the elevator car is above the fire floor, the unit flow rate of the smoke-free airflow delivered into the elevator car is gradually increased as the elevator car rises or descends.
6. The fire elevator operation method according to claim 1, characterized in that: Also includes: If the airflow switch is turned on, smoke-free airflow is delivered into the elevator car.
7. A fire elevator system, characterized in that: include: A fire identification unit, used to obtain fire signals; an air flow control unit, for delivering smoke-free air flow into the elevator car in a fire state so that the air pressure inside the elevator car is higher than the external air pressure; An airflow switch state identification unit, used to obtain the control state of the airflow switch inside the elevator car; A delay control unit is used to, under the condition that smoke-free airflow is delivered to the elevator car, if the airflow switch is turned off, delay a preset time to stop delivering smoke-free airflow to the elevator car.
8. The fire elevator system according to claim 7, characterized in that: Also includes: An internal air pressure detection unit installed in the elevator car, and an external air pressure detection unit installed outside the elevator shaft on each floor; The internal air pressure detection unit and the external air pressure detection unit are respectively connected to the air flow control unit, and the air flow control unit controls the unit flow of smoke-free airflow delivered into the elevator car and the opening and closing of the car door according to the air pressure difference between the inside and outside of the elevator car.
9. A computer device comprising: A memory and a processor, wherein the memory stores a computer program, and wherein the processor implements the steps of the method according to any one of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.