A hand-held electrostatic smoke eliminating device

Abstract

The application discloses a handheld electrostatic smoke eliminating device, and relates to the field of fire rescue, which comprises a power mechanism and a conversion mechanism, wherein the power mechanism is fixedly connected with the conversion mechanism; the power supply of the application is composed of a plurality of rechargeable storage batteries connected in series or single storage batteries, and the output voltage is 8-12V; the voltage boosting module is a low-voltage to high-voltage module, which can boost the 8-12V power supply voltage to an output voltage of more than 10kV; the discharge electrode is a metal needle with a sharp end, which is connected with the negative output end of the voltage boosting module; the discharge electrode is surrounded by a smoke collecting plate, which is composed of a metal framework and coated with an insulating material on the outer surface; a small air blower can introduce smoke into the smoke eliminating device part and wrap it in an insulating handle; the insulating handle is composed of an insulating material; and a ground wire is connected to the back of the insulating handle. The application has the advantages of simple structure, low cost, safety, portability, high smoke eliminating efficiency, and can be used for fire smoke elimination in multiple occasions.

Description

Technical Field

[0001] This invention relates to the field of fire rescue, specifically a handheld electrostatic smoke extinguishing device. Background Technology

[0002] The dangers of fire smoke far outweigh the dangers posed by the fire itself to people. Combustion produces large amounts of smoke and irritating gases, while visibility in the fire scene drops drastically, trapping trapped individuals and hindering rescue efforts. Statistics show that 75-80% of deaths are due to excessive inhalation of smoke and harmful gases, leading to unconsciousness. Furthermore, low visibility in a fire scene severely impacts the progress of search and rescue personnel. Large amounts of fire smoke in relatively enclosed spaces cannot be removed in time; breaching to expel smoke will alter ventilation conditions, potentially causing backfire and increasing the difficulty of fire rescue. Currently, smoke control methods include smoke prevention and smoke extraction. Smoke prevention primarily utilizes physical isolation, often combined with mechanical pressurized ventilation systems to isolate smoke. It is simple and inexpensive, but its effectiveness is inconsistent. Smoke extraction uses exhaust fans to remove fire smoke. While this method aids in evacuation, it can also exacerbate the fire. The main component of fire smoke is fine aerosol particles. Various methods such as water mist smoke suppression, sound wave agglomeration smoke suppression, and chemical reagent purification and absorption smoke suppression have made great progress in fire smoke elimination by agglomerating and increasing the size of aerosol particles through the action of multiple forces. However, there are still problems with practical application.

[0003] Corona discharge has wide applications in environmental engineering, such as air purification, waste gas treatment, and electrostatic dust removal. However, DC corona discharge is not yet widely used for smoke suppression in fire situations. There are still significant gaps in the application of electrostatic smoke suppression technology in fire suppression and rescue. Summary of the Invention

[0004] The purpose of this invention is to provide a handheld electrostatic smoke extinguishing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a handheld electrostatic smoke extinguishing device, comprising a power mechanism and a conversion mechanism, wherein the power mechanism is fixedly connected to the conversion mechanism, and the power mechanism comprises a battery pack, a booster module, a blower, an insulated handle, a grounding wire, and a power supply compartment;

[0006] The conversion mechanism includes a smoke collecting plate, a discharge electrode, a metal frame, and an insulating canvas;

[0007] The discharge electrode is a metal needle with a needle tip at the top, consisting of three electrodes. The discharge electrode is connected to the output terminal of the boost module, and each discharge electrode is protected by a semi-umbrella-shaped smoke collection plate.

[0008] Preferably, the battery pack is connected to the boost module, the output terminal of the boost module is connected to the discharge electrode, and the discharge electrode is wrapped by the insulated smoke collecting plate; the induced draft fan provides negative pressure to draw in the smoke, and the insulated handle wraps around the induced draft fan.

[0009] Preferably, the boost module can be an integrated boost converter circuit board or a boost converter circuit module; the input terminal of the boost module is connected to the battery pack to convert the low voltage of the battery pack to a high voltage of 10kV or above; the output terminal of the boost module is connected to the discharge electrode; the boost module and the battery pack are installed in the power supply compartment and are wrapped by an insulated handle.

[0010] Preferably, the induced draft fan is installed in the middle section of the insulated handle to introduce flue gas, promote smoke elimination, and allow the flue gas to enter the smoke collecting plate and be ionized by the discharge electrode. The flue gas carries negative electrons and moves towards the smoke collecting plate at the zero potential end, where it is adsorbed and eliminated by the smoke collecting plate. The remaining flue gas enters the insulated handle. A filter screen composed of filter cotton can be installed on the induced draft fan to filter and adsorb the particulate components of the flue gas introduced by the induced draft fan.

[0011] Preferably, the discharge electrode is a metal needle with a needle tip, consisting of three or more electrodes. The discharge electrode is connected to the output terminal of the boost module, and each discharge electrode is protected by a semi-umbrella-shaped smoke collection plate. When the output terminal of the boost module outputs a voltage of 10kV or higher, the potential at the tip of the discharge electrode increases sharply, generating corona discharge and releasing a large number of electrons. This causes most of the flue gas to become negatively charged, and the negatively charged flue gas moves towards the smoke collection plate at the zero potential end. The induced draft fan can promote the movement of the flue gas towards the discharge electrode. At the same time, a small amount of unremoved flue gas is introduced into the insulated handle, and the unremoved flue gas particles are adsorbed and filtered by the filter screen on the induced draft fan. The purified air is discharged to the rear of the device.

[0012] Preferably, the smoke collecting plate consists of a metal frame and an insulating canvas wrapped around the frame, divided into three parts. Each part protects a discharge electrode and provides a zero potential terminal to adsorb negatively charged smoke. The smoke collecting plate is connected to a grounding wire and can be connected to an insulating handle via a spring hinge. Pulling the grounding wire backward can close the smoke collecting plate for easy placement. Releasing the wire can open the smoke collecting plate.

[0013] Preferably, the insulated handle is made of insulating material and is hollow inside, used to fix the power supply compartment and the induced draft fan; the power supply compartment inside the insulated handle is used to install the battery pack and the booster module; the insulated handle is connected to the smoke collection plate by a spring hinge.

[0014] Preferably, the smoke collecting electrode plate is connected to a grounding wire, which is made of thick copper or iron wire; the grounding wire is in contact with the insulated handle and connected to the smoke collecting electrode plate.

[0015] In summary, the beneficial effects of this invention are:

[0016] 1. The power supply of this invention consists of multiple rechargeable battery packs connected in series or individual batteries, with an output voltage of 8-12V. The boost module is a low-voltage to high-voltage module that can boost the 8-12V power supply voltage to an output voltage of over 10kV. The discharge electrode is a pointed metal needle connected to the negative output terminal of the boost module. The discharge electrode is surrounded by a smoke-collecting plate, which is constructed with a metal frame and covered with insulating material on its outer surface. A small induced draft fan can introduce smoke into the smoke elimination device and enclose it in an insulated handle. The insulated handle is made of insulating material. A grounding wire is connected to the end of the insulated handle. This invention has a simple structure, low cost, is safe and portable, and has high smoke elimination efficiency, making it suitable for smoke elimination in various fire situations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a handheld electrostatic smoke extinguishing device according to the present invention;

[0019] The labels in the attached diagram are as follows: 1. Battery pack; 2. Boost module; 3. Exhaust fan; 4. Smoke collection plate; 5. Discharge electrode; 6. Metal frame; 7. Insulating canvas; 8. Insulating handle; 9. Grounding wire; 10. Power supply compartment. Detailed Implementation

[0020] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.

[0021] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0022] The following is combined Figure 1 The present invention will be described in detail below. For ease of description, the directions referred to below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The directions of front, back, left, right, up, and down in the view are consistent. Figure 1 This is a front view of the device of the present invention. Figure 1The directions shown are consistent with the front-to-back, left-to-right, up-down directions of the device of the present invention when viewed from the front.

[0023] Please see Figure 1 The present invention provides an embodiment of a handheld electrostatic smoke extinguishing device, comprising a power mechanism and a conversion mechanism, wherein the power mechanism is fixedly connected to the conversion mechanism, and the power mechanism comprises a battery pack 1, a booster module 2, a blower 3, an insulated handle 8, a grounding wire 9, and a power supply compartment 10.

[0024] The conversion mechanism includes a smoke collecting plate 4, a discharge electrode 5, a metal frame 6, and an insulating canvas 7.

[0025] The discharge electrode 5 is a metal needle with a needle tip at the top, consisting of three electrodes. The discharge electrode 5 is connected to the output terminal of the boost module 2, and each discharge electrode 5 is protected by a semi-umbrella-shaped smoke collecting plate 4.

[0026] In another embodiment, the battery pack 1 is connected to the boost module 2, the output end of the boost module 2 is connected to the discharge electrode 5, and the discharge electrode 5 is wrapped by the insulated smoke collecting plate 4; the induced draft fan 3 provides negative pressure to draw in smoke, and the insulated handle 8 wraps around the induced draft fan 1.

[0027] In another embodiment, the boost module 2 can be an integrated boost converter circuit board or a boost converter circuit module; the input terminal of the boost module 2 is connected to the battery pack 1 to convert the low voltage of the battery pack 1 to a high voltage of 10kV or more; the output terminal of the boost module 2 is connected to the discharge electrode 5; the boost module 2 and the battery pack 1 are installed in the power compartment 10 and are wrapped by the insulating handle 8.

[0028] In another embodiment, the induced draft fan 3 is installed in the middle section of the insulated handle 8 to introduce flue gas, promote smoke elimination, and allow the flue gas to enter the smoke collecting plate 4 and be ionized by the discharge electrode 5. The flue gas carries negative electrons and moves towards the smoke collecting plate 4 at the zero potential end, where it is adsorbed and eliminated by the smoke collecting plate. The remaining flue gas enters the insulated handle 8. A filter screen composed of filter cotton can be installed on the induced draft fan 3 to filter and adsorb the particulate components of the flue gas introduced by the induced draft fan 3.

[0029] In another embodiment, the discharge electrode 5 is a metal needle with a needle tip, consisting of three or more electrodes. The discharge electrode 5 is connected to the output terminal of the boost module 2, and each discharge electrode 5 is protected by a semi-umbrella-shaped smoke collecting plate 4. When the output terminal of the boost module 2 outputs a voltage of 10kV or higher, the potential at the tip of the discharge electrode 5 increases sharply, generating corona discharge and releasing a large number of electrons. This causes most of the flue gas to become negatively charged, and the negatively charged flue gas moves towards the smoke collecting plate at the zero potential end. The induced draft fan 3 can promote the movement of the flue gas towards the discharge electrode 5. At the same time, a small amount of unremoved flue gas is introduced into the insulated handle 8, and the unremoved flue gas particles are adsorbed and filtered by the filter screen on the induced draft fan 3. The purified air is discharged to the rear of the device.

[0030] In another embodiment, the smoke collecting plate 4 consists of a metal frame 6 and an insulating canvas 7 wrapped around the frame, divided into three parts. Each part protects a discharge electrode 5 and provides a zero potential terminal to adsorb negatively charged smoke. The smoke collecting plate 4 is connected to a grounding wire 9 and can be connected to an insulating handle 8 via a spring hinge. Pulling the grounding wire 9 backward can close the smoke collecting plate 4 for easy placement. Releasing the wire 8 can open the smoke collecting plate 4.

[0031] In another embodiment, the insulating handle 8 is made of insulating material and is hollow inside, used to fix the power supply compartment 10 and the induced draft fan 3; the power supply compartment 10 in the insulating handle 8 is used to install the battery pack 1 and the booster module 2; the insulating handle 8 is connected to the smoke collection plate 4 by a spring hinge.

[0032] In another embodiment, the smoke collecting electrode plate 4 is connected to the grounding wire 9, which is made of thicker copper wire or iron wire; the grounding wire 9 is in contact with the insulating handle 7 and connected to the smoke collecting electrode plate 6.

[0033] Example 1: A 30mW infrared laser emitter irradiates a smoke-free smoke elimination chamber. The laser receiver receives the laser light passing through the smoke elimination chamber with a power of approximately 27mW, indicating that the smoke elimination chamber is almost completely transparent. Smoke is generated using a smoke generator and introduced into the smoke elimination chamber. The 30mW infrared laser emitter irradiates a smoke-filled smoke elimination chamber. The laser receiver receives the laser light passing through the smoke-filled smoke elimination chamber with a power of approximately 0.01mW, indicating that the smoke elimination chamber is almost opaque. A needle-shaped discharge electrode is inserted into the smoke elimination chamber without applying voltage. The laser power received by the laser receiver slowly increases, reaching 20mW in approximately 30 seconds, indicating that the smoke in the smoke elimination chamber has not been eliminated.

[0034] Example 2: A 30mW infrared laser emitter irradiates a smoke-free smoke elimination chamber. The laser receiver receives the laser light passing through the smoke elimination chamber with a power of approximately 27mW, indicating that the smoke elimination chamber is almost completely transparent. Smoke is generated using a smoke generator and introduced into the smoke elimination chamber. The 30mW infrared laser emitter irradiates the smoke-containing smoke elimination chamber. The laser receiver receives the laser light passing through the smoke-containing smoke elimination chamber with a power of approximately 0.01mW, indicating that the smoke elimination chamber is almost opaque. A needle-shaped discharge electrode is inserted into the smoke elimination chamber, and a 4kV voltage is applied. The laser power received by the laser receiver rises rapidly, reaching 27mW in approximately 8 seconds, indicating that the smoke in the smoke elimination chamber has been completely eliminated.

[0035] Example 3: A 30mW infrared laser emitter irradiates a smoke-free smoke elimination chamber. The laser receiver receives the laser light transmitted through the smoke elimination chamber, with a power of approximately 27mW, indicating that the smoke elimination chamber is almost completely transparent. Smoke is generated using a smoke generator and introduced into the smoke elimination chamber. The 30mW infrared laser emitter irradiates the smoke-containing smoke elimination chamber. The laser receiver receives the laser light transmitted through the smoke-containing smoke elimination chamber, with a power of approximately 0.01mW, indicating that the smoke elimination chamber is almost opaque. A needle-shaped discharge electrode is inserted into the smoke elimination chamber, and a 10kV voltage is applied. The laser power received by the laser receiver rises rapidly, reaching 27mW in approximately 5 seconds, indicating that the smoke in the smoke elimination chamber has been completely eliminated.

[0036] The smoke elimination results of the above embodiments are shown in Table 1.

[0037] Table 1 shows the smoke elimination results of Examples 1-3 of this invention.

[0038]

[0039] The above description is merely a specific embodiment of the invention, but the scope of protection of the invention is not limited thereto. Any variations or substitutions conceived without inventive effort should be included within the scope of protection of the invention. Therefore, the scope of protection of the invention should be determined by the scope defined in the claims.

Claims

1. A handheld electrostatic smoke extinguishing device, comprising a power mechanism and a conversion mechanism, characterized in that: The power mechanism is fixedly connected to the conversion mechanism; The power mechanism includes a battery pack (1), a booster module (2), an induced draft fan (3), an insulated handle (8), a grounding wire (9), and a power supply compartment (10); The conversion mechanism includes a smoke collecting plate (4), a discharge electrode (5), a metal frame (6), and an insulating canvas (7); The discharge electrode (5) is a metal needle with a needle tip at the top. It consists of three electrodes. The discharge electrode (5) is connected to the output terminal of the boost module (2). Each discharge electrode (5) is protected by a semi-umbrella-shaped smoke collecting plate (4). The battery pack (1) consists of a 220V AC rechargeable battery with an output voltage of 8-12V; The boost module (2) is an integrated boost conversion circuit board or a boost conversion circuit module. The boost module (2) and the battery pack (1) are installed in the power compartment (10) and are wrapped by the insulating handle (8). The induced draft fan (3) is installed in the middle section of the insulated handle (8) to introduce flue gas, promote smoke elimination, and allow the flue gas to enter the smoke collecting plate (4) and be ionized by the discharge electrode (5). The flue gas carries negative electrons and moves towards the smoke collecting plate (4) at the zero potential end, and is adsorbed and eliminated by the smoke collecting plate. The remaining flue gas enters the insulated handle (8). A filter screen composed of filter cotton is installed on the induced draft fan (3). The smoke collecting plate (4) consists of a metal frame (6) and an insulating canvas (7) wrapped around it. It is divided into three parts, each of which protects a discharge electrode (5) and provides a zero potential terminal to adsorb negatively charged smoke. The smoke collecting plate (4) is connected to the grounding wire (9). The smoke collecting plate (4) is connected to the insulating handle (8) through a spring hinge.

2. The handheld electrostatic smoke extinguishing device according to claim 1, characterized in that: The battery pack (1) is connected to the boost module (2), and the induced draft fan (3) provides negative pressure to draw in the smoke and guide the smoke into the smoke collecting plate (4); the insulating handle (8) wraps around the induced draft fan (3) and is connected to the smoke collecting plate (4) and the grounding wire (9).

3. The handheld electrostatic smoke extinguishing device according to claim 1, characterized in that: The insulated handle (8) is made of insulating material and is hollow inside.

4. A handheld electrostatic smoke extinguishing device according to claim 1, characterized in that: The grounding wire (9) is made of thick copper wire or iron wire. The grounding wire (9) is in contact with the insulating canvas (7) and connected to the smoke collecting plate (4).

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