68 results about "Carbon monoxide intoxication" patented technology

The invention discloses a scale-free and radiation-free technology of an intelligent electromagnetic energy water heater. Heating is carried out in a high-frequency electromagnetic induction manner, and electricity is saved by 1 / 4 or near 1 / 3 compared with a common electric heating tube water heater. As heating coils are not in contact with water, the combustible-gas inflammable possibility, the combustible gas explosive possibility and the carbon monoxide poisoning possibility can be avoided, and therefore safety is quite high. After several years of long-term experimenting, the working frequency and the waveform of the water heater are changed, and scale is effectively eliminated; the water temperature can be controlled to the accurate temperature with the temperature error of + / -0.5 DEG C through the PID adjustment technology and the self-adaptive technology; multiple intelligent technologies such as various intelligent functions including WiFi, voices, a Bluetooth network, a wireless panel and the like are adopted; the water-cooling cooling technology of a water inlet tank is used, and therefore stable work of a high-power electronic device is guaranteed; and a shell is made of a flame-retardant and insulating material, the interior is made of an anti-radiation material, the resistance-capacitance absorption technology is adopted for the interior, and the electromagnetic radiation value is reduced to be zero. The electromagnetic-energy, radiation-free and scale-free technology is suitable for water heaters, induction cookers, water dispensers, winter heating and the like, and can be further applied to hospitals, touring, civil boilers and industrial boilers, and the market is quite large.

The invention discloses a high-activity spiral Pt-Rh alloy nanocatalyst which is structurally characterized in that a Pt-Rh nanowire forms a framework in the middle, does not have branches, and has the uniform diameter of 1.5-2 nm and the length of a few micrometers; Pt-Rh alloy nanoparticles spirally surround the periphery of the nanowire framework in an axial direction, are distributed orderly and have the uniform sizes of 2-3 nm. A preparation method for the high-activity spiral Pt-Rh alloy nanocatalyst mainly comprises the following steps: taking a hollow spiral insulin fiber obtained after treatment of raw insulin powder as a control template, performing co-hatching on the insulin fiber and a mixed water solution of platinum chloride and rhodium chloride, and performing ultrasonic-assisted co-reduction treatment to prepare the high-activity spiral Pt-Rh alloy nanocatalyst. The nanocatalyst combines the advantages of the nanowire and the nanoparticles and has very high electrocatalytic activity and anti-carbon monoxide poisoning capability; the preparation method is low in preparation cost, environment-friendly, efficient, free of other chemical stabilizers and carriers, simple in preparation process, mild in reaction condition and high in product morphology repeatability.

The invention provides a novel intelligent biological particle heating system. The system comprises a stove entity, a water circulation system, a communication system and an intelligent control system. The stove entity is further constituted by a feeding system, a combustion system, a temperature acquisition system, a remainder monitoring system, a fire alarm system and the like. When the stove entity works, a user only needs to set the necessary temperature through a control panel, and the intelligent control system heats fuel to ignite the stove entity through an electrical heating rod and controls the running-stopping time ratio of a feeding motor as well as the revolving speed of a draft fan and a circulating water pump through error values of temperature sampling values and set values, so that the accurate control over the indoor temperature is achieved. According to the novel intelligent biological particle heating system, biological particles such as straw serve as the fuel, and the heating cost is reduced; the intelligent control system automatically controls the feeding and the combustion degree, the complicated and overloaded degree of manual operation is reduced, problems of insufficient experience and the like are solved, and the accident rate of carbon monoxide poisoning and the accident rate of fire hazard occurrence are reduced. The system is grafted to the Internet through the wireless communication mode Zigbee, and it is facilitated to achieve the remote intelligentized control.

The invention relates to a preparation method of a modified palladium metal catalyst, a prepared catalyst and applications thereof. The method comprises the following steps: preparing a titanium dioxide dispersion liquid; preparing titanium dioxide and tin oxide substrate; preparing a catalyst precursor; and preparing a modified palladium metal catalyst. A catalyst prepared by using the method disclosed by the invention is extremely strong in catalytic activity and carbon monoxide poisoning resistance, and applicable to alcohols fuel cells under alkaline conditions.

The invention belongs to the technical field of fuel cell catalysts, and particularly relates to a platinum-copper alloy nanowire and a preparation method thereof and application thereof. According tothe platinum-copper alloy nanowire, non-noble metal copper is introduced, when the platinum-copper alloy nanowire is used as an anode catalyst of a methanol fuel cell, the carbon monoxide poisoning resistance of the catalyst can be improved, a unique regular and ordered linear bundle structure is formed, and the catalytic activity and stability of the catalyst can be remarkably improved while theaddition amount of platinum is reduced; in addition, the preparation method thereof does not need to add extra carriers, the platinum-copper alloy nanowire catalyst with high catalytic activity can be prepared through a hydrothermal method, the operation is easy, and the platinum-copper alloy nanowire catalyst is suitable for large-scale industrial production and has huge social and economic benefits.

The invention is a method for treating patients with Parkinson's disease, primary parkinsonism / idiopathic parkinsonism, post-encephalitic parkinsonism, parkinsonism that may follow carbon monoxide intoxication, or parkinsonism that may follow manganese intoxication and provides an improvement of a patient's total post-dose “On” time or “Good On” time compared to post-dose of treatment regimens with oral immediate release levodopa tablets.

The invention is a method for treating patients with Parkinson's disease, primary parkinsonism / idiopathic parkinsonism, post-encephalitic parkinsonism, parkinsonism that may follow carbon monoxide intoxication, or parkinsonism that may follow manganese intoxication and provides an improvement of a patient's total post-dose “On” time or “Good On” time compared to post-dose of treatment regimens with oral immediate release levodopa tablets.

The invention discloses an anti-theft door based on a block chain technology, and belongs to the technical field of antitheft safety. The anti-theft door comprises a wall body, wherein a door frame ismounted in the wall body; an antitheft door body is hinged to the left side of the door frame. A fingerprint door lock body is fixedly connected to the middle of the right side of the anti-theft doorbody. A locking assembly is fixedly connected to the middle of the left side of the back of the anti-theft door body. The locking assembly is electrically connected with the fingerprint door lock body; a pressure sensor is fixedly connected to the back surface of the antitheft door part on the right side of the locking assembly; a carbon monoxide detector is fixedly connected to the back of the antitheft door part on the right side of the pressure sensor; and a temperature sensor is fixedly connected to the back of the antitheft door part on the right side of the carbon monoxide detector. Theanti-theft door has the advantages that the anti-theft door is high in protection capacity, timely alarming can be carried out when indoor conditions occur by the aid of linking with the block chainsystem, the anti-theft door is high in safety, carbon monoxide poisoning can be prevented, and fire disasters can be prevented.

The invention provides a carbon monoxide treatment device and method. The carbon monoxide treatment device comprises a dynamic control module which is used for controlling the generation amount of ozone according to the introduction amount of carbon monoxide and a preset mixing reaction proportion, a mixed reaction module which is connected with the dynamic control module and is used for enablingthe ozone entering the mixed reaction module and the introduced carbon monoxide to be in full contact, mixed and react with each other. The device and method are suitable for treating carbon monoxidein application scenes such as kitchens, gas pipe networks, workshops, boiler rooms, automobile low-temperature tail gas, underground garages and mines, can effectively reduce the concentration of thecarbon monoxide or effectively remove the carbon monoxide, and can avoid explosion dangers or carbon monoxide poisoning accidents.

The invention is a method for treating patients with post-encephalitic parkinsonism, parkinsonism that may follow carbon monoxide intoxication, or parkinsonism that may follow manganese intoxication by orally administering a controlled release levodopa formulation and the method provides an improvement of a patient's total post-dose “Off” time compared to post-dose of treatment regimens with oral immediate release levodopa tablets.

The invention discloses a danger alarm system based on a smart bracelet, and relates to the technical field of smart bracelets. The intelligent bracelet comprises an intelligent bracelet body and a remote monitoring terminal. A heart rate sensor, an MPU-6050 sensor, a carbon monoxide detection sensor, a central processor, a positioning module, an alarm module and a communication module are arranged in the intelligent bracelet; the alarm module comprises a voice alarm and an alarm lamp; and the remote monitoring terminal is a mobile phone, a tablet personal computer or a computer. According tothe invention, the communication module and the remote monitoring terminal are arranged, so that relatives of a wearer can know the abnormal condition in time so as to take safety measures when the wearer is in abnormal conditions; the heart rate sensor and the blood pressure sensor are arranged, so that the heart rate and the blood pressure of the wearer can be monitored in real time; and the MPU-6050 sensor and the carbon monoxide detection sensor are arranged, so that when the wearer falls down or is poisoned by carbon monoxide, an alarm can be given in time.

The invention is a method for treating patients with Parkinson's disease, primary parkinsonism / idiopathic parkinsonism, post-encephalitic parkinsonism, parkinsonism that may follow carbon monoxide intoxication, or parkinsonism that may follow manganese intoxication and provides an improvement of a patient's total post-dose “On” time or “Good On” time compared to post-dose of treatment regimens with oral immediate release levodopa tablets.

The present invention adopts a one-pot room-temperature reduction method to prepare an imidazole type dinitrile amine salt ionic liquid functionalized graphene supported platinum catalyst with excellent electro-catalytic performance. The method is characterized by selecting the reduced graphene oxide (rGO) with large specific surface area and better electrochemical performance as a carrier; through non-covalent functionalization, giving the more excellent conductivity to the reduced graphene oxide (rGO), and taking chloroplatinic acid as a platinum source and taking sodium borohydride as a reducing agent to prepare the imidazole type dinitrile amine salt ionic liquid functionalized graphene supported platinum catalyst. The prepared catalyst has good methanol oxidation electrocatalytic activity, carbon monoxide poisoning resistance and stability, so that the method has certain reference significance for the development, research and application of a direct methanol fuel cell anode catalyst.

The invention discloses a preparation method of a platinum-based alloy rare earth metal oxide fuel cell anode catalyst, relates to a preparation method of a platinum-based alloy oxide fuel cell catalyst, and aims to solve the technical problems that the existing methanol fuel cell anode catalyst is low in catalytic activity and prone to carbon monoxide poisoning. The method comprises the following steps: firstly, preparing a CeO2 catalyst carrier material by adopting a hydrothermal synthesis method, then mixing corresponding precursor solutions of Pt, Sn and Cu used for preparing a PtSnCu alloy with the CeO2 catalyst carrier material, carrying out an oil bath heating reaction, and then separating, washing and drying to obtain the catalyst PtSnCu / CeO2. The initial capacity of the catalyst in an acidic electrolyte is 1010.5-1163.3 mA mgPt <-1 >, the initial capacity is 680.65-820.4 mA mgPt <-1 > after 500 cycles, the retention rate is 67.4%-70.5%, and the catalyst can be used in the field of methanol fuel cells.

The invention relates to the field of electronic appliances and discloses an air conditioning voice control device with a reminding function. The air conditioning voice control device comprises a voice module, an air conditioning control module and a voice reminding module, wherein the voice module is capable of receiving and recognizing a voice command and inputting the voice command to the air conditioning control module; the air conditioning control module receives the command from the voice module to control the operation of an air conditioner; and the voice reminding module is used for determining whether to switch to an internal circulation mode according to preset detection indexes and for reminding people in a vehicle. The air conditioning voice control device with the reminding function can remind a user to switch to the internal circulation mode according to current needs and is conducive to health of the user; and at the same time, the air conditioning voice control device also eliminates the hidden danger of carbon monoxide poisoning. The user can also control the operation of the air conditioner through voice according to own needs, and the good human-machine interaction performance is reflected.

This protective grille is designed to prevent carbon monoxide poisoning due to incomplete combustion and fires caused by abnormal ignition of gas appliances during painting work in apartment buildings and other buildings. This grille protects areas that should not be stained by paint, even if the gas appliance's intake and exhaust ports are covered. This can lead to malfunctions and fires. Currently, when painting large apartment buildings (approximately 100 units), even if residents are informed not to use their gas appliances during painting work on a particular floor, they may still accidentally use them. The Director of the Gas Safety Office, Safety Group, Ministry of Economy, Trade and Industry (METI) has requested cooperation from the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and the Construction Economics Bureau regarding the prevention of carbon monoxide poisoning caused by blockages in gas appliance intakes and exhaust ports during painting work. It has been reported that 54 such accidents occurred over the five years from 2017 to 2021. When painting, painters cover the air intake and exhaust vents with vinyl, then immediately cut them out with a utility knife and use masking tape to ensure proper ventilation. However, even if multiple people cut out the numerous intake and exhaust vents with a utility knife, someone may lose concentration and end up with a loose opening, resulting in a clogged vent and incomplete combustion. This product is made of cardboard treated with a flame retardant and consists of a right-side component, a left-side component, and an adjustment component for adjusting the horizontal width. Since the width of the intake and exhaust vents varies depending on the building, this can be adjusted. (The vertical size is long enough to accommodate this product.) Once assembly is complete, the intake and exhaust vents are attached and secured with paper masking tape. In particular, when painting the eaves, the walls and floors must all be covered with vinyl, so vinyl is applied to the walls, and then the vinyl is cut with a utility knife to fit the size of the product that has already been installed and fixed, and then connected to the product with paper masking tape. In the area where the masking tape will be applied, cellophane tape is attached to the cardboard, so by applying the paper masking tape to that area, the cellophane tape and paper masking tape can be peeled off cleanly when the product is removed, so it can be reused several times.(Since cellophane tape has excellent adhesive properties for cardboard, paper masking tape will not pull on the cellophane tape and the surface of the cardboard will not peel off.) It protrudes diagonally about 10 to 12 cm from the opening line of the existing air intake and exhaust vents, has a wide opening, and has an exhaust vent at the top. There is a covering part at the top as shown on pages (5), (6), and (7), so paint cannot get in and exhaust can be released, so gas appliances can be used without any problems.

The invention belongs to the technical field of gas poisoning prevention, and particularly relates to a full-automatic gas poisoning prevention machine which comprises a temperature sensor, a temperature regulator and a fan. The temperature sensor is arranged on the outer wall of a chimney of a heating stove and connected with the temperature regulator, the temperature regulator is connected withthe fan, an air outlet of the fan is communicated with the chimney, and the air outlet direction is upward. Through automatic control, the problem of carbon monoxide poisoning is completely solved, the personal safety of indoor personnel is guaranteed, the problem of indoor black smoke and misty gas when a fire is made for the stove is also solved, and the living environment is improved. The full-automatic gas poisoning prevention machine is simple in structure and convenient to install, original heating equipment does not need to be greatly transformed, and therefore the full-automatic gas poisoning prevention machine is small in cost investment, suitable for being developed in vast rural areas, small in investment, low in economic operation cost and extremely obvious in social benefit generated after the full-automatic gas poisoning prevention machine is put into use.

The application relates to a preparation method of a platinum-based alloy rare earth metal oxide fuel cell anode catalyst, and relates to a preparation method of a platinum-based alloy oxide fuel cell catalyst, which aims to solve the technical problems of low catalytic activity and easy carbon monoxide poisoning of the existing methanol fuel cell anode catalyst. The method comprises the following steps: firstly, preparing a CeO2 catalyst carrier material by using a hydrothermal synthesis method; then mixing a corresponding Pt, Sn and Cu precursor solution used for preparing a PtSnCu alloy with the CeO2 catalyst carrier material to perform oil bath heating reaction; and finally, separating, washing and drying to obtain the catalyst PtSnCu / CeO2. The initial capacity of the catalyst in an acid electrolyte is 1010.5-1163.3 mA mg Pt ‑1 , and the capacity after 500 cycles is 680.65-820.4 mA mg Pt ‑1 , the retention rate is 67.4%-70.5%, and the catalyst can be used in the field of methanol fuel cells.

The invention discloses an indoor and outdoor phase change heating device, and belongs to the technical field of heating equipment. The device aims to solve the problems that existing outdoor combustion heating equipment has carbon monoxide poisoning and fire hazards, and electric heating equipment depends on a continuous power supply. The device comprises a heat preservation box body, a heating system and a phase change heat storage device. The heating system is composed of a plurality of heating films with different power, a PID temperature controller and a plurality of independent mechanical temperature limiting switches, the phase change heat storage device arranged in the box is heated in a wrapping mode, and precise constant-temperature heating is achieved through double-threshold control logic. And a high-enthalpy-value composite phase change material is packaged in the phase change heat storage device. Heat energy is stored in the phase-change material through electric energy, long-time safe, silent and emission-free heating in the outdoor environment without a power source is achieved, and the phase-change heating device is particularly suitable for occasions such as camping in winter and outdoor operation and has the advantages of being safe, portable, environmentally friendly and capable of saving energy.

This protective grille is designed to prevent carbon monoxide poisoning due to incomplete combustion and fires caused by abnormal ignition of gas appliances during painting work in apartment buildings and other buildings. This grille protects areas that should not be stained by paint, even if the gas appliance's intake and exhaust ports are covered. This can lead to malfunctions and fires. Currently, when painting large apartment buildings (approximately 100 units), even if residents are informed not to use their gas appliances during painting work on a particular floor, they may still accidentally use them. The Director of the Gas Safety Office, Safety Group, Ministry of Economy, Trade and Industry (METI) has requested cooperation from the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and the Construction Economics Bureau regarding the prevention of carbon monoxide poisoning caused by blockages in gas appliance intakes and exhaust ports during painting work. It has been reported that 54 such accidents occurred over the five years from 2017 to 2021. When painting, painters cover the air intake and exhaust vents with vinyl, then immediately cut them out with a utility knife and use masking tape to ensure proper ventilation. However, even if multiple people cut out the numerous intake and exhaust vents with a utility knife, someone may lose concentration and end up with a loose opening, resulting in a clogged vent and incomplete combustion. This product is made of cardboard treated with a flame retardant and consists of a right-side component, a left-side component, and an adjustment component for adjusting the horizontal width. Since the width of the intake and exhaust vents varies depending on the building, this can be adjusted. (The vertical size is long enough to accommodate this product.) Once assembly is complete, the intake and exhaust vents are attached and secured with paper masking tape. In particular, when painting the eaves, the walls and floors must all be covered with vinyl, so vinyl is applied to the walls, and then the vinyl is cut with a utility knife to fit the size of the product that has already been installed and fixed, and then connected to the product with paper masking tape. In the area where the masking tape will be applied, cellophane tape is attached to the cardboard, so by applying the paper masking tape to that area, the cellophane tape and paper masking tape can be peeled off cleanly when the product is removed, so it can be reused several times.(Since cellophane tape has excellent adhesive properties for cardboard, paper masking tape will not pull on the cellophane tape and the surface of the cardboard will not peel off.) It protrudes diagonally about 10 to 12 cm from the opening line of the existing air intake and exhaust vents, and the opening width is also wide, so there is no problem using gas appliances.

The invention relates to the technical field of fine chemical engineering, in particular to a catalyst, a preparation method of the catalyst and a preparation method of 1, 4-cyclohexanedimethanol. The catalyst comprises Pd, Co and a carrier; wherein in terms of the total mass of the catalyst, the content of Pd is 0.2 to 0.5 wt%, the content of Co is 0.12 to 0.3 wt%, and the content of the carrier is 99.2 to 99.68 wt%; the carrier is a mixed oxide of Al, Si and B, and the molar ratio of Al to Si to B is (3.4-4.2): 1: (0.2-0.3). According to the catalyst provided by the invention, the carbon monoxide poisoning resistance of the catalyst can be remarkably improved on the premise of reducing the content of the Pd element and the Co element, and the catalyst has the advantages of high DMT conversion rate and DMCD selectivity.

The invention provides a vehicle air filtration control method and device, a storage medium and a vehicle, and belongs to the technical field of automobiles. The method includes: acquiring a carbon monoxide concentration parameter on a vehicle; the concentration parameters comprise a first concentration parameter and a second concentration parameter; according to the first concentration parameter, the second concentration parameter and a preset concentration parameter first threshold value, whether the vehicle meets an early warning condition or not is determined; according to the first concentration parameter, the second concentration parameter and a preset concentration parameter second threshold value, the current carbon monoxide risk level of the vehicle is determined; and controlling the vehicle to output an alarm action according to the risk level. According to the vehicle air filtration control method and device, the first concentration parameter and the second concentration parameter are obtained at the same time, the current risk level of the vehicle is determined, and the vehicle is controlled to output the alarm action corresponding to the risk level; the problems that the carbon monoxide poisoning risk of the environment where the vehicle is located cannot be rapidly recognized, and rescue measures cannot be automatically taken are solved.

The invention relates to a fuel cell technology and aims to provide a direct methanol fuel cell with homogeneous assisted catalysis and porous carbon-supported platinum catalysis. According to preparation of methanol fuel in the battery, 1 liter of sulfuric acid with a mass concentration of 5 to 10 wt% is taken and heated to 50 to 70 DEG C; 0.1 to 1 mol of V2O5 is added, reacting under stirring for 5 h is carried out, and after filtering, a (VO2)2SO4 sulfuric acid solution is obtained; after cooling to room temperature, 1 to 4 liters of methanol aqueous solution with a mass concentration of 50to 60 wt% are added, (VO2)2SO4 changes to (VO)SO4 through uniform mixing, and modified methanol fuel containing a cocatalyst (VO)SO4 is obtained. Oxidation and carbon monoxide poisoning on the surface of a platinum catalyst in the electrochemical oxidation process of methanol are avoided through the assisted catalytic effect of VO<2+> ions; and the performance of direct methanol fuel cell is improved through the synergy of the high activity of carbon-loaded platinum and the assisted catalytic effect of liquid phase VO<2+> ions. (VO)SO4 can be recycled, the cost can be effectively reduced, andthe application and the popularization of methanol fuel cells are facilitated.

The invention belongs to the technical field of noble metal catalysts, and particularly relates to a preparation method and application of an aluminum-doped noble metal nano-catalyst. The specific method comprises the following steps: respectively adding a carbon source, an aluminum salt and 2-methylimidazole into dimethyl sulfoxide, uniformly mixing to obtain a precursor, then mixing the precursor with a noble metal solution, and pyrolyzing the precursor through a reducing atmosphere at a high temperature to obtain the catalyst which is applied to a fuel cell electrode and has relatively strong carbon monoxide poisoning resistance. Generation of H ions in the cell is accelerated, and the catalytic performance of the fuel cell is effectively improved.

This protective grille is designed to prevent carbon monoxide poisoning due to incomplete combustion and fires caused by abnormal ignition of gas appliances during painting work in apartment buildings and other buildings. This grille protects areas that should not be stained by paint, even if the gas appliance's intake and exhaust ports are covered. This can lead to malfunctions and fires. Currently, when painting large apartment buildings (approximately 100 units), even if residents are informed not to use their gas appliances during painting work on a particular floor, they may still accidentally use them. The Director of the Gas Safety Office, Safety Group, Ministry of Economy, Trade and Industry (METI) has requested cooperation from the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and the Construction Economics Bureau regarding the prevention of carbon monoxide poisoning caused by blockages in gas appliance intakes and exhaust ports during painting work. It has been reported that 54 such accidents occurred over the five years from 2017 to 2021. When painting, painters cover the air intake and exhaust vents with vinyl, then immediately cut them out with a utility knife and use masking tape to ensure proper ventilation. However, even if multiple people cut out the numerous intake and exhaust vents with a utility knife, someone may lose concentration and end up with a loose opening, resulting in a clogged vent and incomplete combustion. This product is made of cardboard treated with a flame retardant and consists of a right-side component, a left-side component, and an adjustment component for adjusting the horizontal width. Since the width of the intake and exhaust vents varies depending on the building, this can be adjusted. (The vertical size is long enough to accommodate this product.) Once assembly is complete, the intake and exhaust vents are attached and secured with paper masking tape. In particular, when painting the eaves, the walls and floors must all be covered with vinyl, so vinyl is applied to the walls, and then the vinyl is cut with a utility knife to fit the size of the product that has already been installed and fixed, and then connected to the product with paper masking tape. In the area where the masking tape will be applied, cellophane tape is attached to the cardboard, so by applying the paper masking tape to that area, the cellophane tape and paper masking tape can be peeled off cleanly when the product is removed, so it can be reused several times.(Since cellophane tape has excellent adhesive properties for cardboard, paper masking tape will not pull on the cellophane tape and the surface of the cardboard will not peel off.) It protrudes diagonally about 10 to 12 cm from the opening line of the existing air intake and exhaust vents, and the opening width is also wide, so there is no problem using gas appliances.

The present invention provides a controllable smoke emission structure and stove, belonging to the field of stove accessories. The controllable smoke emission structure includes: a smoke hood, which is used to cover the stove mouth; and a chimney pipe, which is connected to the smoke hood and is provided with a chimney interface and an air inlet with an adjustable opening area. When sealing the fire, the opening area of ​​the air inlet is increased, so that the suction force of the chimney on the outside air through the air inlet gradually increases, and the suction force of the chimney on the smoke hood is reduced, slowing down the combustion in the furnace. Although the suction force of the chimney on the smoke hood is reduced, the passage from the smoke hood to the chimney through the chimney pipe is always kept unobstructed, and the smoke in the smoke hood can be discharged from the chimney to the outside through the chimney pipe by itself, avoiding carbon monoxide poisoning of indoor personnel. By adopting the above controllable smoke emission structure, the stove can ensure that the smoke is completely discharged to the outside when sealing the fire, avoiding carbon monoxide poisoning of indoor personnel.

A catalyst and a preparation method therefor, and a preparation method for 1,4-cyclohexanedimethanol. The catalyst comprises Pd, Co, and a carrier, wherein based on the total mass of the catalyst, the Pd content is 0.2-0.5 wt%, the Co content is 0.12-0.3 wt%, and the carrier content is 99.2-99.68 wt%. The carrier is a mixed oxide of Al, Si, and B, and the molar ratio of Al:Si:B is 3.4-4.2:1:0.2-0.3. The carbon monoxide poisoning resistance of the catalyst can be significantly improved while reducing the content of Pd and Co elements. In addition, the catalyst has the advantages of high DMT conversion rates and high DMCD selectivity.

The invention discloses a CO gas detection and monitoring system for a coal gas furnace and a gas furnace, and relates to the technical field of gas detection. The invention includes a gas furnace body and a support plate, a fixing plate and a lifting plate arranged inside the gas furnace body from top to bottom in sequence, and a lifting device is installed and fixed at the bottom of the gas furnace body; a CO detector is installed inside the gas furnace body; There is a furnace hole at the center of the plate axis; an annular retaining ring is arranged around the bottom of the furnace hole; suction holes are evenly opened on the annular retaining ring; the gap between the fixed plate and the supporting plate forms a suction channel; the upper edge of the furnace is movable On the annular retaining ring; the lower surface of the lifting plate is installed and fixed with the lifting device; the upper surface of the lifting plate is in contact with the bottom of the furnace. In the present invention, a carbon monoxide detection system is installed in the coal-fired gas furnace, and the carbon monoxide gas is sucked into the suction channel from the suction hole by the suction fan, and finally discharged from the exhaust pipe to the outside. The structure is simple, and the problem of carbon monoxide poisoning can be effectively avoided.

The utility model discloses an automobile communication intercom device, and belongs to the field of automobile communication devices. Comprising a communication interphone, the upper end of the communication interphone is connected with a signal antenna and a detector, the outer wall of the front side of the communication interphone is connected with a control panel and a sound receiver, the outer wall of the right side of a communication device is provided with a USB interface, the outer wall of the communication device is connected with a detachable binding device, and a storage battery and an intelligent chip are arranged in the communication device. The intelligent chip is in wired connection with the signal antenna and the detector control panel through wires, and the intelligent chip comprises a data transmission module, a 5G network module, a detection module and an intelligent control module. The utility model solves the problems that a child is locked in a car by mistake and cannot contact people outside the car, so that the child is caught in a coma due to the fact that the child does not know how to open a car door to escape in a closed environment for a long time, the situation of oxygen deficit or carbon monoxide poisoning is easily caused, and tragedies are caused once the rescue opportunity is missed.