367results about "Heat protection" patented technology

The invention discloses a fireproof cloak with an aerogel composite multi-layer structure, and belongs to the technical field of fireproof cloaks. Comprising an outer layer, a middle layer and an inner layer, wherein the outer layer is made of carbon fiber cloth; the middle layer is made of modified aerogel; and the inner layer is made of breathable flame-retardant cloth. According to the prepared cloak, the outer layer is the carbon fiber cloth, the carbon fiber structure is stable, middle-layer aerogel can be protected, external mechanical damage can be borne, the mass is light, and the wearing burden is reduced; the middle layer of the prepared cloak is the modified aerogel, so that the cloak is endowed with excellent heat insulation property and fire resistance; the inner layer of the prepared cloak is the aramid staple fiber needle-punched cloth, so that the cloak has the fireproof performance and also has certain wearing comfort; in conclusion, through the three-layer composite design of the carbon fiber outer layer, the modified aerogel middle layer and the aramid fiber inner layer, the composite material has the advantages of being ultra-light, high in fireproof performance and high in comfort and has important application value in the technical field of fireproof cloaks.

A personal cooling enclosing material comprises a garment body; an air cooling system provided on an outside surface of the garment body, wherein the air cooling system further comprises a receptacle and a coolant contained in the receptacle; and an air circulation system provided on an inside surface of the garment body for drawing original air from an internal space inside the garment body for cooling. The air circulation system is separated from the air cooling system to avoid direct contact of the original air with the coolant of the air cooling system. The air cooling system is in thermal communication with the air circulation system.

The invention provides a fire rescue protective suit based on hazardous gas monitoring and early warning software and hardware integration. According to one embodiment of the invention, the fire rescue protection suit comprises a protection assembly, a sensing module, a node communication module and a display module, wherein the sensing module is arranged in the protection assembly, and the sensing module is used for collecting environment information and physical sign information of rescue workers; the node communication module is used for sending the environment information, the physical sign information and the positioning information of the rescue workers to a safety centralized control center; early warning information sent by the security centralized control equipment is received; wherein the early warning information comprises the operation efficiency information of the rescue workers and the dangerous area grade in the environment where the rescue workers are located; and the display module is used for receiving the early warning information from the node communication module and displaying the early warning information.

The utility model discloses a comfortable and breathable firefighter fire-extinguishing protective garment, and relates to the technical field of firefighter fire-extinguishing protective garments, the comfortable and breathable firefighter fire-extinguishing protective garment comprises a protective garment body, and a fabric for making the protective garment body comprises an outer flame-retardant layer, a first waterproof and breathable layer, a second waterproof and breathable layer, a heat insulation layer and a comfortable layer; the first waterproof breathable layer and the second waterproof breathable layer are made of nanofiber membranes; wherein the inner side of the outer flame-retardant layer is connected with the outer side of the first waterproof breathable layer; the inner side of the second waterproof breathable layer is connected with the outer side of the heat insulation layer; after the fabric for making the protective clothing body is sewn, the inner side of the first waterproof breathable layer is in contact with the outer side of the second waterproof breathable layer; the inner side of the heat insulation layer makes contact with the outer side of the comfortable layer. The protective clothing has the advantages of being good in air permeability and flexibility and capable of effectively improving the comfort degree of a user wearing the fire-fighting protective clothing for the firefighter.

A hardhat having a brim of variable elongation circumscribing its base is oriented such that the most elongate brim portion is associated with the back of a user's head. A source of supplied air is brought into an area proximate the back area, and an air conduit directs the air toward an area or areas of the hardhat having a less elongate brim.

A safety helmet for a firefighter includes an outer shield having a neck opening and a front opening, a hinge located on an upper region of the front opening of the outer shield, a fire-retardant foam liner, a face shield including a sensor carrier attached to the hinge, a particulate air filter, a light emitting diode (LED) light strip, a mask mechanism configured to attach to the tapered nose opening of the transparent screen and the particulate air filter, a heads-up display (HUD) connected to an upper region of a proximal edge of the mask mechanism which faces the tapered nose opening, an oxygen port connected to the mask mechanism, a mask body connected to a distal edge of the mask mechanism, a speaker and microphone unit attached to the mask body, and a regulator nose cone.

The present invention relates to the technical field of fire-fighting composite fabrics, and discloses a processing technology for highly flame-retardant, high-temperature-resistant, and highly breathable firefighting suit protective fabrics. The outer layer of the firefighting suit protective fabric adopts a high-temperature flame-retardant layer fabric made of nitrogen-phosphorus composite flame-retardant fibers. Through the synergistic effect between the various components, a dense carbon layer can be formed when a fire occurs to delay combustion. Nano-silicon dioxide aerogel is added to the composite adhesive of the inner layer to further block heat transfer. A comfort layer fabric blended with menthol-modified bamboo fiber and spandex fiber is composited with the composite adhesive by spraying the adhesive in a diamond lattice. The fabric has uniform breathable pores, can bring a continuous cool feeling, is highly comfortable to wear, and effectively promotes sweat discharge. The prepared firefighting suit protective fabric has excellent flame retardancy, high-temperature resistance, and breathability, and can meet the use requirements in various environments.

The utility model relates to the technical field of fire-fighting appliances, in particular to an ice-repellent firefighter uniform which comprises an upper garment and trousers, the upper garment and the trousers sequentially comprise an ice-repellent flame-retardant layer, a waterproof moisture-permeable heat insulation layer and a comfortable layer which are stacked from outside to inside, and an ice-repellent material coating is arranged on the side, away from the surface of a human body, of the ice-repellent flame-retardant layer. The waterproof and moisture-permeable heat insulation layer comprises a heat insulation aramid fiber felt and waterproof and moisture-permeable films adhered to the two opposite sides of the heat insulation aramid fiber felt, the upper garment and the trousers are each provided with a brim-imitated structure waterproof strip and ice-repellent coating stripes, and the brim-imitated structure waterproof strips are used for preventing external water from quickly wetting the lower hem of the upper garment and preventing the external water from entering the fire-fighting boots. The ice-repellent coating stripes are used for delaying the icing time of the surface of the firefighter uniform and improving the ice coating removing efficiency of the surface of the firefighter uniform, and through the synergistic effect of the functions, the ice-repellent firefighter uniform can effectively delay the icing time of the surface of the firefighter uniform, improve the ice coating removing efficiency of the surface of the firefighter uniform and reduce the wet and cold degree of the firefighter uniform.

A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the amount of air flow through the air delivery conduit, and a valve actuator outside of the shell of the respirator. The valve actuator is manipulatable by a user of the respirator while wearing the respirator to control movement of the valve member.

The invention discloses a temperature on-line monitoring and early warning system for fire protection clothing, which relates to the technical field of fire protection monitoring and early warning and comprises a data collection module, a data preprocessing module, a calculation processing module and an early warning execution module. Wherein the calculation processing module comprises a dynamic temperature risk unit, a comprehensive environment risk unit and a safety prediction unit. The dynamic temperature risk unit fuses temperature, a safety threshold value, a change rate, material aging, humidity and a heat reflection attenuation coefficient, outputs a dynamic temperature risk coefficient and reflects a safety margin, and the comprehensive environment risk unit introduces gas concentration, the number of hazardous articles, smoke attenuation and an action intensity coefficient based on the dynamic temperature risk coefficient, constructs an environment coupling risk index, and finally performs the safety analysis on the environment coupling risk index. And the safety prediction unit integrates a basic safety time constant, an environment coupling risk index, a dynamic temperature risk coefficient, a heat flux density and an oxygen concentration correction coefficient, outputs a residual safety time prediction value, and guides an evacuation decision of a fireman.

The invention relates to the technical field of fire-fighting composite fabrics, and discloses a processing technology of a high-flame-retardant, high-temperature-resistant and high-air-permeability firefighter uniform protective fabric. The outer layer of the firefighter uniform protective fabric is a high-temperature-resistant and flame-retardant layer fabric made of nitrogen-phosphorus composite flame-retardant fibers; a compact carbon layer can be formed when a fire disaster occurs, combustion is delayed, nano silicon dioxide aerogel is added into the composite adhesive of the inner layer, heat transfer can be further blocked, the comfortable layer fabric formed by blending menthol modified bamboo fibers and spandex fibers is compounded with the composite adhesive in a rhombic dot matrix spraying mode, and the heat transfer can be further blocked. According to the present invention, the prepared firefighter uniform protection fabric has characteristics of uniform ventilation pore channel, continuous cooling feeling, high wearing comfort, and effective sweat gas discharge promoting, such that the prepared firefighter uniform protection fabric has advantages of excellent flame retardation, excellent high temperature resistance, excellent gas permeability, and meeting of use requirements in various environments.

The invention relates to the technical field of flame-retardant clothing, and discloses a light flame-retardant fire-fighting jacket and application thereof.The jacket is prepared from flame-retardant aramid fabric, and the flame-retardant aramid fabric is prepared through the following steps that (1) surface treatment is conducted on the aramid fabric, vinyl functional groups are grafted on the surface of the aramid fabric, and a flame-retardant flame-retardant fabric is obtained; the surface modified aramid fiber fabric is obtained; (2) preparing a flame retardant with a core-shell structure; and (3) adding the compound in the step (2) into absolute ethyl alcohol, stirring to obtain a uniform suspension, adjusting the pH value to 3-4 by adding an acid solution, reacting at 180-200 DEG C for 8-12 hours, and then filtering and drying to obtain the flame retardant with the core-shell structure. (4) dispersing the flame retardant in the step (3) in ethanol, adding 2wt% of a vinyl silane coupling agent, uniformly mixing, and reacting for 3-6 hours; and adding the surface modified aramid fabric in the step (1) into ethanol, and adding an initiator for reaction. According to the application, the durability of the flame retardant property of the aramid fabric can be improved.

A disposable protective garment is disclosed that includes a hijab with a head cover portion and a neck cover portion extending from the head cover portion. The head cover portion and the neck cover portion are made of a barrier material.

The invention provides an antibacterial breathable special protective garment, and relates to the technical field of protective garments. The antibacterial breathable special protective suit comprises a protective suit body, a conical sleeve, a sleeve, a first air hole, a rectangular hole, a warning lamp and an air blowing assembly, the conical sleeve is arranged in the protective suit body, the air blowing assembly is arranged on the inner side of the conical sleeve, the rectangular hole is formed in the air inlet side of the air blowing assembly, the sleeve is arranged on the air outlet side of the air blowing assembly and used for clamping an ice bag, and the first air hole is formed in the air outlet side of the ice bag. The warning lamp is arranged at the end of the conical sleeve, and when the temperature of the inner side of the protective clothing is higher or lower than a preset value, the first air hole and the rectangular hole are driven to be connected or disconnected with the inner side of the protective clothing, and the warning lamp and the blowing assembly are powered on or powered off. When the temperature in the protective clothing is low or higher than a preset value, the ice bag is in a heat preservation state, or the warning lamp flashes and the blowing assembly blows air to the ice bag at the same time, low-temperature air is forced to enter the protective clothing, the low-temperature air flows on the body surface, sweat evaporation is accelerated, and heat on the surface of the human body is taken away.

The present invention provides a fire-fighting protective clothing for firefighters, comprising: an outer fabric and a comfort fabric; wherein, the outer fabric is a double-layer tissue woven fabric, including a fabric surface layer and a fabric inner layer; the thermal protection performance after the combination of the outer fabric and the comfort fabric is greater than or equal to 28 cal / cm<supgt;2< / supgt;. The fire-fighting protective clothing for firefighters of the present invention can effectively reduce the combined weight of the protective clothing, has high heat insulation efficiency, and can also meet the requirements of easy operability, moisture permeability, and individual safety protection in high-temperature environments.

The current invention relates to a headgear for use in CBRN protective equipment, wherein the headgear has a headgear body which is hood or balaclava shaped for head covering and a field-of-vision opening for receiving and covering the edge of a respiratory protection mask. The headgear comprises an elastic sealing element arranged circumferentially in the edge region of the field-of-vision opening, wherein the elastic sealing element is tacky. The headgear also comprises an edge section at least partially covering and / or overlapping the sealing element on the outside, wherein the edge section is provided with a cavity circumferentially along the edge section, said cavity comprises an elastic tension cord with stoppers at each opening, so that the edge section is formed to press and / or tension against the sealing element on the outside and / or in the direction of the face field opening. The invention also relates to a method for sealing the transition between a headgear for CBRN protective equipment, and a breathing mask.

Protective garments are disclosed having a fabric material treated with a durable water resistant treatment. In accordance with the present disclosure, the durable water resistant treatment is substantially free of fluorocarbon chemicals and yet provides not only excellent water resistance, but also has excellent durability properties.

To provide a personal protection system capable of providing a sterile barrier between a wearer and the surrounding environment in a medical or surgical situation.SOLUTION: A personal protection system comprising a helmet having a garment attached thereto. The helmet comprises a motorized assembly, such as a fan. At least one button for adjusting the operation of the motorized assembly is attached to the face shield of the garment. The helmet comprises a detector connected to the button to monitor the state of the button. When the button is pressed, the detector sends a signal to a controller that regulates the operation of the motorized assembly. The controller then sets the operational state of the assembly based on the depression of the control button so that the assembly operates in the state desired by the wearer of the personal protection system.SELECTED DRAWING: Figure 1

The utility model discloses a portable fire-fighting fireproof cover capable of being quickly unfolded, and belongs to the technical field of emergency rescue protection equipment. According to the technical scheme, the fire-proof cover comprises a cover body, a bottom edge and a storage fixing belt, the cover body is hemispherical, the bottom edge is arranged on the lower edge of the hemispherical cover body, the storage fixing belt is arranged on the bottom edge, and the cover body is made of fire-proof materials. The portable fire-fighting fire-avoiding cover capable of being rapidly unfolded has the advantages of being rapid in unfolding, convenient to carry, fire-resistant, soft, high in strength, high in heat radiation resisting efficiency and capable of enabling fire-fighting personnel to avoid direct contact with flames in a protected space and to normally breathe in the protected space through the optimized structural design, and the portable fire-fighting fire-avoiding cover capable of being rapidly unfolded has the advantages of being simple in structure and convenient to use. The portability, the rapid unfolding performance and the fire-avoiding performance of the fire-avoiding cover are remarkably improved, and a safer and more efficient protection means is provided for fire fighters in the forest fire fighting process.

Embodiments of the present invention replace at least some flame retardant fibers (e.g., aramid fibers) in wadding traditionally used for thermal insulation liners with thermally stable polyamide fibers (e.g., nylon fibers). The TPP performance of garments incorporating thermal liner embodiments encompassed herein is comparable to garments formed with conventional thermal liners, even without being improved.

The application provides a kind of air supply device and control method for biological protection equipment, it is related to biological protection equipment technical field, air supply device includes filter module, refrigeration module, power module, shell module, air supply and connection module, back module and control module, filter module is set at the bottom end of shell module, refrigeration module is divided into first-stage refrigeration and second-stage refrigeration, and is respectively set at the end face of shell module and filter module, most parts of power module and air supply and connection module are set in shell module, back module is set at the back of shell module, control module further includes controller, control panel and sensor, and controller is set at one end of back module.The application realizes air supply dehumidification, air filtration and temperature reduction and pressure stabilization in biological protection equipment through air supply device, and further improves comfort under the premise of ensuring the safety of wearer.

The utility model discloses a posture self-locking structure of safety clothes. The posture self-locking structure comprises an insertion plate, the inserting seam is formed in the lower end of the inserting plate; the pressing opening is formed in one inner wall of the inserting seam; the pressing plate is rotationally connected to the other inner wall of the inserting seam; the connecting plate is connected to the inserting plate in a sliding manner; a switching column is arranged in the middle of the pressing plate; an inclined groove is formed in the connecting plate; and a driving inclined surface is arranged on the edge of the inclined groove. The gravity of the tool or the tool bag acts on the pressing plate to enable the pressing plate to rotate to press the waistband, so that the structure is prevented from sliding along the waistband and being separated from the waistband, the wearing comfort of the safety clothes is improved, and potential safety hazards are also reduced; when the tool or the tool bag is lifted upwards, the pressing plate automatically loosens the waistband and is convenient to take down, additional operation steps are not added, and use is easy and convenient.

The utility model discloses a forest emergency rescue suit which comprises an upper garment, trousers and an opening and closing structure, the upper garment comprises a front garment body located on the front side of a user and a rear garment body located on the rear side of the user, the front garment body is provided with an upper body front side ventilation structure, and the rear garment body is provided with an upper body back side ventilation structure; the trousers comprise front trousers located on the front side of a user and rear trousers located on the rear side of the user, the front trousers are provided with a lower body front side breathable structure, and the rear trousers are provided with a lower body rear side breathable structure; the opening and closing structure is arranged on at least one of the upper body front side ventilation structure, the upper body back side ventilation structure, the lower body front side ventilation structure and the lower body back side ventilation structure and used for adjusting the ventilation degree of the corresponding ventilation structure. According to the technical scheme, a user can adjust the heat dissipation performance of the forest emergency rescue suit according to the requirements of the user.

The invention relates to the use of an item of protective clothing, preferably in the form of protective underclothing (protective underwear), for protecting people against an action of and / or contamination with polycyclic aromatic hydrocarbons (PAC) released from a contamination source when staying and / or working in locations in which polycyclic aromatic hydrocarbons are released or present, and / or for protecting people exposed to an action of polycyclic aromatic hydrocarbons against a contamination ("PAC contamination"), in particular to prevent or minimise contamination ("PAC contamination").

The utility model discloses an interlayer buffer structure of safety clothes, which comprises an air bag embedded in a leg strap. The hanging ring is arranged on the back part; the mounting box is arranged right below the hanging ring; the connecting pipe is communicated with the air bag; the carbon dioxide gas cylinder is detachably connected to the interior of the connecting pipe; the pressing rod is rotationally connected to the upper part of the mounting box; a pull rope is arranged between the pressing rod and the hanging ring, and the pressing rod can selectively pierce the carbon dioxide gas cylinder; and a tension spring is arranged between the pressing rod and the mounting box. The flat leg straps do not affect flexible movement of two legs, the air bags are inflated to buffer impact at the moment of falling, and the leg straps are prevented from tying and hurting the body. Manual operation is not needed, response is timely, and safety is high; when falling in various postures, inflation can be induced. The installation box is high in integration level and compact in layout, and the box belt is convenient to replace after being opened.

The present disclosure relates to a joint assembly configured to define a tubular body having a first end, a second end and a passage therebetween. The tubular body is configured for articulation between a first state in which the first end and second end are in a first orientation with respect to one another, and a second state in which the first end and second end are in a second orientation with respect to one another. The body comprises a flexible bladder arranged between opposing supports, each of the bladder and the supports being ring-shaped so as to define an aperture, the respective apertures forming part of the passage. The bladder defines a chamber, and the chamber is partially filled with a fluid which moves within the chamber during articulation of the tubular body from said first state to said second state in order to maintain a constant internal volume of the joint assembly.

A protective hood in a vacuum bag including a flexible shell that is folded when stored and when unfolded is pulled through an open base of the flexible shell and over the head of a user. The hood includes a visor and an articulated device rigidly attached to the open base to be placed around the neck of the user when the flexible shell is pulled over the head of the user. The articulated device includes at least two rigid portions connected by a joint that allows these two rigid portions to transition from folded, which inhibits the head of the user from entering the hood, to unfolded, which allows the head of the user to enter the hood. The hood includes a handle rigidly attached to the top of the flexible shell to be accessible to the user when the flexible shell is folded.

The invention discloses an intelligent fireproof fabric and a preparation method and application thereof, and belongs to the technical field of fireproof materials.Graphene / polyimide aerogel is blended with polyimide fibers to prepare a composite fabric, graphene / polyimide aerogel in-situ synthesis enables the composite fabric to have good dispersion uniformity and bonding strength, and the graphene / polyimide aerogel in-situ synthesis enables the composite fabric to have good flame retardance. Meanwhile, the aerogel taking the polyimide as the matrix and the polyimide fiber have the same molecular structure and chemical composition and have a good interface structure, and the strength of the composite fabric is enhanced. The thermal decomposition temperature of the intelligent fireproof fabric is increased (5% thermal decomposition temperature gt; meanwhile, the high temperature resistance and the flame retardant property are also improved. According to the intelligent fireproof fabric, the aerogel is used as a light filler, a low-density and high-air-permeability protective layer is prepared, the overall weight of the intelligent fireproof fabric is reduced, and the wearing comfort is improved.

The invention relates to a protective garment (1), in particular firefighter jacket, firefighter pants, firefighter vest or firefighter coveralls, consisting substantially of a multi-layer textile material (2) which has the following layers: * an outer layer (10) which faces the surroundings of the person wearing the protective garment (1) and which consists substantially of a woven fabric having hydrophobic properties and made of at least one first type of heat-resistant, tear-resistant threads of low flammability, * an inner layer (11) which faces the body of the person wearing the protective garment (1) and which consists of a textile fabric, preferably a woven fabric, * a moisture barrier (12), in particular a membrane, which is permeable to water vapor and impermeable to liquid water and which is arranged between the inner layer (11) and the outer layer (10). The aim is to achieve a particularly high level of wearing comfort, in particular in the form of low water vapor-penetration resistance, while nevertheless meeting the requirements of EN 469:2020 performance level 1. To achieve this aim, the textile fabric of the inner layer (11) has hydrophilic properties, in particular has a hydrophilic finish.