A portable high-temperature early warning device and method

Abstract

This invention belongs to the field of fire-fighting equipment technology, and provides a portable high-temperature early warning device and method, including a heat-conducting module, an activation reaction module, and an alarm module. The activation reaction module includes a trigger reaction area, a tube body, and a porous ceramic layer. The alarm module includes a color-developing area and a smoke-generating agent filling area. When the temperature of the monitored item, equipment, or facility reaches the temperature threshold of the early warning device, the hot melt adhesive melts, and reagents C and D undergo a chemical reaction to generate a large amount of gas. The generated gas causes the color-developing agent to change color, providing a color change warning. A specific sound is emitted when the airflow passes through the honeycomb tube, providing an audible warning. When the gas volume reaches a certain level, it breaks through the sealing membrane and carries the smoke-generating agent to the smoke outlet, forming a miniature colored smoke column, providing a smoke warning. This invention can provide high-temperature early warning for electrical equipment and facilities within a temperature range of 70-160℃, giving users sufficient time for hazard handling and emergency escape.

Description

Technical Field

[0001] This invention relates to the field of fire protection equipment technology, specifically to a portable high-temperature early warning device and method. Background Technology

[0002] With technological advancements and the development of 5G communication technology, people's lifestyles have undergone tremendous changes. Currently, human society has entered the era of modern intelligent living, with various smart appliances and electric vehicles entering countless households. While bringing convenience, this also increases safety hazards. Fires caused by improper use of electrical appliances and aging wiring are rampant, making fire early warning systems essential. Existing smoke detectors require smoke to reach a certain concentration in a specific space before triggering an alarm. Once an alarm is triggered, the fire is often already large and difficult to control, leaving insufficient time for people to deal with the danger and escape. Other early warning devices that combine thermocouples or infrared temperature probes with electronic alarm systems offer good early warning capabilities, but their complex structure and high production and maintenance costs make them suitable for large enterprises and forest farms for fixed-point remote monitoring.

[0003] Therefore, it is necessary to develop devices that can provide high-temperature warnings before a fire occurs, giving effective alerts before fires or smoke appear, thereby preventing fires and protecting human life and property. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems by providing a portable high-temperature warning device and method. This invention primarily utilizes the automatic activation of a trigger in the reaction module to induce a chemical reaction when the temperature of the monitored item, equipment, or facility reaches the temperature threshold of the warning device. The resulting gaseous products, after passing through the warning module, generate a distinct warning signal, thereby achieving high-temperature warnings for electrical equipment and facilities within a temperature range of 70-160℃, providing users with sufficient time for hazard handling and emergency escape.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] This invention first provides a portable high-temperature early warning device, including a heat-conducting module, an excitation reaction module, and an alarm module; the excitation reaction module includes a trigger reaction area, a tube body, and a porous ceramic layer; the alarm module includes a color-developing area and a smoke-generating agent filling area;

[0007] The trigger reaction area contains liquid trigger A and solid hot-melt trigger suspension B. The boiling point of liquid trigger A has an error of no more than ±3℃ from the set high-temperature warning threshold temperature. Solid hot-melt trigger suspension B is mainly formed by mixing powdered reagent C, powdered reagent D and a medium, and then completely coating the outer layer with hot-melt adhesive. Solid hot-melt trigger suspension B is immersed in liquid trigger A. When powdered reagent C and powdered reagent D come into contact with liquid trigger A, they are dissolved and undergo a chemical reaction, generating a large amount of gas.

[0008] The lower end of the tube is filled with a porous ceramic layer, and the area above the porous ceramic layer is a color-developing area. The color-developing area is filled with a color developer, and the tube at the color-developing area is provided with a transparent color-developing window.

[0009] Above the color developing area is a smoke-generating agent filling area. The top of the smoke-generating agent filling area is a smoke-generating port. The diameter of the smoke-generating port is much smaller than the cross-sectional size of the smoke-generating agent filling area. The smoke-generating agent filling area is filled with smoke-generating agent. The smoke-generating agent filling area and the color developing area are separated by a sealing film. The sealing film is a soluble film.

[0010] The heat-conducting module is attached to one side of the trigger reaction area. The heat-conducting module is used to attach to the monitored object and transfer the heat of the monitored object to the trigger reaction area.

[0011] The trigger reaction area is a reaction container with an opening, and the opening is provided with a sealing cap or sealing film. The opening of the trigger reaction area is detachably connected to the tube body. When the portable high temperature warning device is not in use, the reaction container and the tube body are not connected. When the portable high temperature warning device is in use, the sealing cap or sealing film is removed to connect the reaction container and the tube body.

[0012] Furthermore, the warning module also includes a honeycomb tube, the central axis of which coincides with the central axis of the tube body, and the honeycomb tube is fixed within the tube body between the color display area and the sealing film.

[0013] Furthermore, the liquid trigger A is composed of one or more of ethanol, water, butyric acid, and acetic acid.

[0014] Further, the powdered reagent C is one or more of citric acid, 2-hydroxysuccinic acid, 2,3-dihydroxysuccinic acid, and lactic acid; the powdered reagent D is one or more of sodium carbonate, sodium bicarbonate, and calcium bicarbonate; and the medium is one or a mixture of starch, microcrystalline cellulose, dextrin, and lactic acid.

[0015] Furthermore, the heat-conducting module is a thin film made of a single material among aluminum, copper, and graphite, or a foil made of two or more of aluminum, copper, and graphene materials through electroplating, embedding, or other methods.

[0016] Furthermore, the hot melt adhesive is selected from PA hot melt adhesive film, EVA hot melt adhesive film, PES hot melt adhesive film, PO hot melt adhesive film or medium-temperature TPU hot melt adhesive film according to different high temperature warning temperature thresholds.

[0017] Furthermore, the colorimetric agent is one or more of anhydrous copper hydroxide, methyl orange, methyl red, and litmus reagent.

[0018] Furthermore, the smoke-generating agent is one or more of the following: dyed corn flour, fly ash, calcium carbonate powder, and titanium dioxide powder.

[0019] Furthermore, the sealing film is a sealing film made of PVA, CMC, HEC or starch film material.

[0020] This invention also provides a high-temperature early warning method, employing the aforementioned high-temperature early warning device. This method utilizes three warning signals—sound, color, and smoke—to issue a high-temperature early warning, and includes the following steps:

[0021] The heat-conducting module is attached to the surface of the object being tested. The heat-conducting module transfers heat to the liquid trigger A in the trigger reaction area. After the temperature of the liquid trigger A rises, it reaches the high-temperature warning threshold. The hot melt adhesive surrounding the solid hot melt trigger suspension B melts. Powdered reagents C and D dissolve upon contact with the liquid trigger A. Reagents C and D undergo a chemical reaction and produce a large amount of gas. The generated gas enters the color development section and comes into contact with the color developer, causing the color of the color developer to change. The color change can be observed through the color development window, providing a color change warning. The airflow emits a specific sound as it passes through the honeycomb tube, providing an audible warning. The gas contains vaporized liquid molecules produced by the boiling of the liquid trigger A, which can dissolve the sealing film and carry the smoke generator to the smoke outlet, forming a miniature colored smoke column, providing a smoke warning.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. This invention provides a high-temperature early warning method and a portable device. The device uses a trigger agent to activate an alarm module that emits signals such as sound, color changes, and smoke. This allows people to see the signals promptly and determine whether the monitored items, equipment, or facilities are in a high-temperature state and whether there is a possibility of fire. Through sound, color changes, odors, and smoke signals, the device alerts users to take emergency response measures, giving them sufficient time for hazard handling and escape, thus preventing fires and protecting human life and property.

[0024] 2. This invention can select appropriate hot melt adhesives according to the warning temperature threshold to achieve the purpose of predicting different high temperatures from 70 to 160°C. It is highly flexible and widely applicable. Compared with smoke detectors, which can only provide warnings after a fire has occurred, it can reserve more time for hazard handling and emergency escape. Its warning function is more meaningful for the safety of human life and property.

[0025] 3. The device of the present invention has the advantages of low manufacturing cost, small size, portability and ease of use, and the response time from the temperature reaching the warning threshold to the release of the warning signal is within 2 minutes, which is fast. The device of the present invention is easy to promote and apply in homes, public places and other places. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a portable high-temperature early warning device provided by the present invention;

[0027] Figure 2 This is a schematic diagram of the sandwich sleeve in this invention;

[0028] Figure 3 A flowchart of a high-temperature early warning method provided by the present invention.

[0029] Among them, A-Activation reaction module, B-Alarm module, 1-Heat conduction module, 2-Trigger reaction area, 201-Opening, 202-B Solid hot melt trigger suspension, 203-A Liquid trigger agent, 204-Hot melt adhesive; 3-Tube body, 301-Color development area, 302-Color developer, 303-Porous ceramic layer, 304-Interlayer, 305-Middle part, 4-Smoke agent filling area, 401-Smoke outlet, 402-Smoke agent, 5-Sealing film, 6-Honeycomb tube. Detailed Implementation

[0030] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.

[0031] To better detect the temperature of object surfaces and provide effective high-temperature early warnings, thus preventing fires before they occur, see [link to relevant documentation]. Figure 1 The present invention provides a portable high temperature warning device, which includes a heat conduction module 1, an excitation reaction module A and an alarm module B; wherein, the excitation reaction module A includes a trigger reaction area 2, a tube body 3, and a porous ceramic layer 303; the alarm module B includes a color development area 301 and a smoke generator filling area 4;

[0032] See also Figure 1The trigger reaction area 2 contains liquid trigger 203 (A) and solid hot-melt trigger suspension (B). The boiling point of liquid trigger 203 has an error of no more than ±3℃ from the set high temperature warning threshold. That is, the appropriate liquid trigger 203 is matched according to the high temperature warning threshold of the surface of the object being tested, so as to flexibly adjust the monitoring temperature threshold. Liquid trigger 203 (A) can be a liquid or a mixture of one or more of ethanol, water, butyric acid, and acetic acid.

[0033] The B solid hot-melt trigger suspension 202 is mainly formed by mixing powdered reagent C, powdered reagent D, and a medium, and then completely encapsulating them in an outer layer with hot-melt adhesive 204. The suspension can be made into various shapes such as spheres, quasi-spheres, cylinders, and cubes, as long as the powdered reagent C, powdered reagent D, and the medium are completely encapsulated and isolated from the outside environment. The B solid hot-melt trigger suspension 202 is immersed in the A liquid trigger agent 203. When the powdered reagent C and powdered reagent D are solid powders, no chemical reaction occurs between them or the reaction rate is extremely slow. However, when the powdered reagent C and powdered reagent D come into contact with the A liquid trigger agent 203, they are dissolved and can undergo a chemical reaction, producing a large amount of gas. The optional powdered reagent C can be one or more of citric acid, 2-hydroxysuccinic acid, 2,3-dihydroxysuccinic acid, and lactic acid. The optional powdered reagent D can be one or more of sodium carbonate, sodium bicarbonate, and calcium bicarbonate. The medium is one or a mixture of starch, microcrystalline cellulose, dextrin, and lactic acid. The selection of hot melt adhesive 204 is also crucial. Depending on the different high-temperature warning temperature thresholds, hot melt adhesive 204 can be selected from PA hot melt adhesive film, EVA hot melt adhesive film, PES hot melt adhesive film, PO hot melt adhesive film, or medium-temperature TPU hot melt adhesive film. This ensures that the melting point of the hot melt adhesive is as close as possible to and slightly lower than the high-temperature warning temperature threshold of the tested item. When the threshold temperature is reached or before the threshold temperature is reached, the hot melt adhesive 204 can melt, releasing powdered reagent C and powdered reagent D. Powdered reagent C and powdered reagent D dissolve in liquid trigger 203 (A), thereby undergoing a chemical reaction to generate a large amount of gas. This large amount of gas can be used for warning.

[0034] See also Figure 1The tube body 3 is used to house the porous ceramic layer 303 and the color developer 302. The lower end of the tube body 3 is filled with the porous ceramic layer 303, which means that the porous ceramic layer 303 is tightly packed with the tube body 3. The position of the porous ceramic layer can be fixed by high-temperature resistant adhesive or by a combination of protrusions and depressions for anti-slip fixation. Above the porous ceramic layer 303 is the color development area 301, which is filled with the color developer 302. The tube body 3 at the color development area 301 is set as a transparent color development window. The color developer 302 can be one or more of anhydrous copper hydroxide, methyl orange, methyl red, and litmus reagent. When it encounters a large amount of acidic gas generated in the trigger reaction area 2, a color change will occur, and the color change will serve as an early warning. The color-developing area 301 can be arranged in a cylindrical shape, entirely filled with the color-developing agent, or it can be a sandwiched tube as shown in the figure, with the color-developing agent 302 filled in the outer sandwich 304 to facilitate the display of color changes in the color-developing window. The middle part 305 is hollow to facilitate airflow. The upper and lower ends of the sandwich 304 are connected to the honeycomb tube 6 (or the fume-generating agent filling area 4) and the porous ceramic layer to trigger the color reaction between the reagent product and the color-developing agent. This structure can reduce the obstruction of airflow by the color-developing agent 302.

[0035] See also Figure 1 Above the color developing area 301 is a smoke-generating agent filling area 4. The smoke-generating agent filling area 4 can be a container with openings at the top and bottom. The opening at the top of the smoke-generating agent filling area 4 is a smoke outlet 401. The diameter of the smoke outlet 401 is much smaller than the cross-sectional size of the smoke-generating agent filling area 4. The narrow smoke outlet 401 facilitates the formation of a large air pressure, resulting in a tall smoke column when it is ejected. The smoke-generating agent filling area 4 is filled with a smoke-generating agent 402. The smoke-generating agent filling area 4 and the color developing area 301 are separated by a sealing film 5, which prevents the smoke-generating agent 402 from falling out. The smoke-generating agent filling area 4 and the tube body 3 can be connected by a detachable threaded connection. The sealing film 5 is located at the top opening of the tube body or the bottom opening of the smoke-generating agent filling area 4. The sealing film is a soluble film. The steam generated by the boiling of liquid trigger A, combined with the water molecules generated by the reaction of powdered reagent C and powdered reagent D, rises upon heating and dissolves the sealing film, opening the airflow channel and allowing the airflow to continue rising to the smoke-generating agent filling area 4. The smoke outlet 401 can be sealed with an outer cover and a second sealing film during the sales process to prevent the color developer 302 from falling out. The outer cover is removed when in use. The second sealing film can be a soluble film that melts directly upon contact with the airflow containing humid gas. The smoke-generating agent 402 can be selected from one or more colored powders selected from dyed corn flour, fly ash, calcium carbonate powder, and titanium dioxide powder. The sealing film 5 and the second sealing film are made of PVA, CMC, HEC, or starch film material.

[0036] The heat-conducting module 1 is attached to one side of the trigger reaction area 2. The heat-conducting module 1 is used to adhere to the monitored object and transfer the heat from the monitored object to the trigger reaction area 2. The heat-conducting module 1 is a thin film made of a single material selected from aluminum, copper, and graphene, or a foil composed of two or more materials selected from aluminum, copper, and graphene through electroplating, embedding, or other methods. This achieves a temperature difference of ±0.5℃ between the two ends after 1 minute of heat transfer over a 1m section, realizing rapid heat transfer.

[0037] The trigger reaction zone 2 is a reaction container with an opening 201. The opening 201 is equipped with a sealing cap or sealing film. The opening 201 of the trigger reaction zone 2 is detachably connected to the tube body 3. When the portable high-temperature warning device is not in use, the reaction container and the tube body 3 are not connected; they can be two separate components or connected together. When the portable high-temperature warning device is in use, the sealing cap or sealing film is removed, and the reaction container is connected to the tube body 3. The connection method between the reaction container and the tube body 3 can be a threaded seal connection or a plug-in connection. The sealing film here is made of a non-water-soluble membrane material, such as PE, PP, or PVC. This design prevents liquid trigger agent 203 from entering the color development zone 301 during transportation, thus avoiding false alarms from the color development agent 302.

[0038] In a more preferred embodiment of the present invention, the warning module B further includes a honeycomb tube 6, the central axis of which coincides with the central axis of the tube body 3. The honeycomb tube 6 is fixed inside the tube body 3 between the color display area 301 and the sealing film 5. The pore size of the honeycomb tube 6 is 0.2-1mm. The finer channel allows sound to be emitted when gas passes through the honeycomb tube 6, providing an audible warning and thus increasing the warning effect.

[0039] The method for issuing high-temperature warnings using the high-temperature warning device of the present invention is a method that utilizes three warning signals—sound, color, and smoke—to issue high-temperature warnings. (See [link to previous document]). Figure 3 The flowchart includes the following steps:

[0040] Remove the sealing cap or sealing film from the reaction vessel and connect the opening 201 of the reaction vessel to the tube 3.

[0041] The heat-conducting module 1 is attached to the surface of the object being tested and fixed. The fixing method may include strapping, sticking, buckling, magnetic adsorption, etc., that is, connecting ropes, high-temperature PP insulating tape, high-temperature plastic buckles or permanent magnets to the heat-conducting module 1.

[0042] The heat-conducting module 1 transfers heat to the liquid trigger 203 A in the trigger reaction area 2. After the temperature of the liquid trigger 203 A rises, it reaches the high-temperature warning threshold, and the hot melt adhesive 204 encapsulating the solid hot melt trigger suspension 202 B melts. Powdered reagents C and D are dissolved after contacting the liquid trigger 203 A. Reagents C and D undergo a chemical reaction and produce a large amount of gas. The generated gas enters the color development section and comes into contact with the color developer 302, causing the color developer 302 to change color. The color change can be observed through the color development window, providing a color change warning. The airflow emits a specific sound when passing through the honeycomb tube 6, providing an audible warning. The gas contains vaporized liquid molecules produced by the boiling of the liquid trigger 203 A, which can dissolve the sealing membrane 5 and carry the smoke generator to the smoke outlet, forming a miniature colored smoke column, providing a smoke warning.

[0043] In this invention, the type of hot melt adhesive 204 and the type of liquid trigger 203 are selected according to the required high-temperature warning threshold temperature. Those skilled in the art can use different hot melt adhesives 204 and liquid triggers 203 according to the required warning threshold temperature to achieve the monitoring purpose. Table 1 below provides some specific embodiments.

[0044] Table 1

[0045]

[0046] The early warning device of this invention can detect color changes, sound alarms, and visible smoke columns within 45-90 seconds when the temperature of an object reaches a certain level. The smoke columns are visible within an effective range of 10 meters. Therefore, the device of this invention has the advantages of being compact, portable, easy to use, fast-responding, and highly sensitive.

[0047] The above description is a detailed description of the preferred embodiments of the present invention. However, the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modifications made under the technical spirit of the present invention should fall within the patent scope covered by the present invention.

Claims

1. A portable high-temperature early warning device, characterized in that, It includes a heat-conducting module, an activation reaction module, and an alarm module; the activation reaction module includes a trigger reaction area, a tube body, and a porous ceramic layer; the alarm module includes a color-developing area and a smoke-generating agent filling area; The trigger reaction area contains liquid trigger A and solid hot-melt trigger suspension B. The boiling point of liquid trigger A has an error of no more than ±3℃ from the set high-temperature warning threshold temperature. Solid hot-melt trigger suspension B is mainly formed by mixing powdered reagent C, powdered reagent D, and a medium, and then completely coating the outer layer with hot-melt adhesive. Solid hot-melt trigger suspension B is immersed in liquid trigger A. Powdered reagent C and powdered reagent D are dissolved upon contact with liquid trigger A, undergoing a chemical reaction and generating a large amount of gas. Liquid trigger A is composed of one or more of ethanol, water, butyric acid, and acetic acid. Powdered reagent C is one or more of citric acid, 2-hydroxysuccinic acid, 2,3-dihydroxysuccinic acid, and lactic acid. Powdered reagent D is one or more of sodium carbonate, sodium bicarbonate, and calcium bicarbonate. The medium is one or more of starch, microcrystalline cellulose, dextrin, and lactic acid. The lower end of the tube is filled with a porous ceramic layer, and the area above the porous ceramic layer is a color-developing area. The color-developing area is filled with a color developer, and the tube at the color-developing area is provided with a transparent color-developing window. Above the color developing area is a smoke-generating agent filling area. The top of the smoke-generating agent filling area is a smoke-generating port. The diameter of the smoke-generating port is much smaller than the cross-sectional size of the smoke-generating agent filling area. The smoke-generating agent filling area is filled with smoke-generating agent. The smoke-generating agent filling area and the color developing area are separated by a sealing film. The sealing film is a soluble film. The heat-conducting module is attached to one side of the trigger reaction area. The heat-conducting module is used to attach to the monitored object and transfer the heat of the monitored object to the trigger reaction area. The trigger reaction area is a reaction container with an opening, and the opening is provided with a sealing cap or sealing film. The opening of the trigger reaction area is detachably connected to the tube body. When the portable high temperature warning device is not in use, the reaction container and the tube body are not connected. When the portable high temperature warning device is in use, the sealing cap or sealing film is removed to connect the reaction container and the tube body.

2. The portable high-temperature warning device according to claim 1, characterized in that: The warning module also includes a honeycomb tube, the central axis of which coincides with the central axis of the tube body, and the honeycomb tube is fixed inside the tube body between the color display area and the sealing film.

3. The portable high-temperature early warning device according to claim 1, characterized in that: The heat-conducting module is a thin film made of a single material among aluminum, copper, and graphene, or a foil made of two or more of aluminum, copper, and graphene through electroplating, embedding, or other methods.

4. A portable high-temperature early warning device according to claim 1, characterized in that: The hot melt adhesive is selected from PA hot melt adhesive film, EVA hot melt adhesive film, PES hot melt adhesive film, PO hot melt adhesive film or medium-temperature TPU hot melt adhesive film according to different high temperature warning temperature thresholds.

5. A portable high-temperature early warning device according to claim 1, characterized in that: The colorimetric reagent is one or more of anhydrous copper hydroxide, methyl orange, methyl red, and litmus reagent.

6. A portable high-temperature early warning device according to claim 1, characterized in that: The smoke-generating agent is one or more of the following: dyed corn flour, fly ash, calcium carbonate powder, and titanium dioxide powder.

7. A portable high-temperature early warning device according to claim 1, characterized in that: The sealing membrane is a sealing membrane made of PVA, CMC, HEC or starch film material.

8. A high-temperature early warning method, employing the high-temperature early warning device according to any one of claims 1-7, characterized in that: This is a method for issuing high-temperature warnings using three warning signals: sound, color, and smoke. It includes the following steps: The heat-conducting module is attached to the surface of the object being tested. The heat-conducting module transfers heat to the liquid trigger A in the trigger reaction area. After the temperature of the liquid trigger A rises, it reaches the high-temperature warning threshold. The hot melt adhesive surrounding the solid hot melt trigger suspension B melts. Powdered reagents C and D dissolve upon contact with the liquid trigger A. Reagents C and D undergo a chemical reaction and produce a large amount of gas. The generated gas enters the color development section and comes into contact with the color developer, causing the color of the color developer to change. The color change can be observed through the color development window, providing a color change warning. The airflow emits a specific sound as it passes through the honeycomb tube, providing an audible warning. The gas contains vaporized liquid molecules produced by the boiling of the liquid trigger A, which can dissolve the sealing film and carry the smoke generator to the smoke outlet, forming a miniature colored smoke column, providing a smoke warning.

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