23 results about "Passive heating" patented technology

The presented invention relates to a tank system (100) for storing cryogenic fluid. The presented tank system (100) includes: - a tank (101), - a heating element (103), wherein the tank (101) comprises an inner tank (105) and an outer tank (107), wherein the inner tank (105) encloses a storage volume (109) for storing fluid and the outer tank (107) encloses the inner tank (105), wherein the inner tank (105) is spaced from the outer tank (107) by an intermediate volume (111), wherein the heating element (103) comprises a number of active heating elements (113) arranged on the outer tank (107), a number of passive heating elements (115) arranged on the inner tank (105) and a control unit, wherein the control unit is configured to supply the plurality of active heating elements (113) with electrical current to heat the plurality of passive heating elements (115).

The invention relates to the technical field of monitoring cameras, in particular to an anti-fog waterproof all-weather intelligent monitoring camera. The anti-fog waterproof all-weather intelligent monitoring camera comprises an adjusting support, a shell, a mounting frame, a protective lens, a rain cover, a top frame, a core module and a controller, the shell is fixedly mounted on the adjusting support, the mounting frame is mounted on the left side of the shell, and the core module is integrated in the mounting frame. According to the scheme, an active heat convection demisting system is adopted, and compared with a traditional passive heating mode, the active heat convection demisting system has the following breakthrough improvement that filtered air is fed into the barrel to be heated through a fan, and after being rapidly heated through a heating wire, hot air forms directional airflow through a circuit board through hole; mist in the protective lens and the mounting frame can be quickly evaporated and removed in a short time, all areas in the mounting frame are covered by heat convection, and condensate water of components such as a lens and a circuit board is synchronously eliminated.

Method for operating a RESS heating system (12) in a vehicle (10) comprising a coolant circuit (16) for passing a coolant through a rechargeable energy storage system (RESS) (44) and a refrigerant circuit (14) designed to selectively cool the coolant flowing through a radiator (38) in the coolant circuit (16), the method comprising the following steps: (a) Determining a current target temperature range for the RESS (44) based on at least one current vehicle operating mode and a current ambient temperature, wherein the target temperature range is variable based on the current vehicle operating mode and the current ambient temperature; (b) Determining a temperature of the RESS (44); (c) Determine whether the temperature of the RESS (44) needs to increase or decrease to remain within the current target temperature range; (d) if it is determined that the temperature of the RESS (44) needs to increase, determine whether to use active heating or passive heating of the coolant, with active heating using a greater amount of energy over a shorter period than passive heating; (e) Activating the active heating or passive heating of the coolant determined by step (d); (f) if it is determined that the temperature of the RESS (44) needs to decrease, determine whether to use active or passive cooling of the coolant, with active cooling using a greater amount of energy over a shorter period than passive cooling; and (g) Activating the active cooling or passive cooling of the coolant determined by step (f), characterized by the fact that then, when passive cooling is activated in step (g), the rate of change of the coolant temperature over time is monitored and compared with a desired passive cooling capacity, and the switch from passive cooling to active cooling occurs when the rate of change of the coolant temperature is below a predetermined threshold and the desired passive cooling capacity is not achieved, and then, when passive heating is activated in step (e), the rate of change of the coolant temperature over time is monitored and compared with a desired passive heating output, and the switch from passive heating to active heating occurs when the rate of change of the coolant temperature is below the predetermined threshold and the desired passive heating output is not reached.

The invention discloses a fluorinated transparent aramid fiber aerogel material as well as a preparation method and application thereof. The fluorinated transparent aramid fiber aerogel material is prepared through reaction of an aramid framework element, a spatial configuration element and a chroma inhibition element, the spatial configuration element has the function of adjusting the pore structure and the light transmittance of aerogel, and the chroma inhibition element has a fluorinated group. The function of inhibiting the formation of electron transfer complexes in the polymerization process is realized. According to the fluorinated transparent aramid fiber aerogel material, the aramid fiber aerogel material with high transparency and strong mechanical performance can be prepared by adjusting the proportion of an aramid framework element, a spatial configuration element and a chroma inhibition element, and the aramid fiber aerogel material has good transmittance in a visible light region and high transparency in an infrared region; the material also has the advantages of simple preparation, adjustable light transmittance, extreme environment resistance, good mechanical properties and the like, and is expected to be applied to the fields of passive heating, aerogel intelligent windows, thermal insulation building materials and the like.

The utility model discloses an electric heating table with an air purification device, which is characterized in that the air purification device is arranged below a table board of the electric heating table, the air purification device comprises a box body, a negative ion generator, an electric controller, a fan and the like, the box body is provided with an air inlet area and an air outlet area, the air inlet area is aligned with the output end of a heating device below the table board, and the air outlet area is aligned with the output end of the heating device below the table board. Heat is sucked into the box body, hot air is rich in negative ions through the negative ion generator, and the hot air is exhausted outwards through the air outlet area to blow a user, so that on one hand, the air is rich in negative ions, and the physical condition and mental quality can be improved by sucking the negative ions in the heating process of the user; hot air blows outwards through the fan, the heating area can be expanded, meanwhile, passive heating can be achieved, heating can be achieved without stretching hands, the risk of scalding caused by stretching hands is reduced, the air purification device can be installed on the middle layer or the bottom plate, and the installation position is flexible.

An oil storage tank temperature maintaining system with a built-in phase change heat storage body relates to the technical field of new energy and comprises an oil storage tank, a solar heat collection unit, a photovoltaic power generation unit, a waste heat utilization unit, an intelligent temperature control unit and an electric power storage unit. The oil storage tank is connected with the solar heat collection unit through a backflow pipeline. The photovoltaic power generation unit is connected with the electric energy switching control device, the electric energy switching control device is connected with the power storage unit and the waste heat utilization unit, a power supply line of the power storage unit is connected with the oil storage tank, the waste heat utilization unit is connected with the oil storage tank through a heat supply pipeline, and the oil storage tank is connected with the waste heat utilization unit through a backflow pipeline. And the electric energy switching control device is connected with a power grid. According to the oil storage tank temperature maintaining system with the built-in phase change heat storage body, an original phase change oil storage tank and an oil storage tank are combined, heat exchange between crude oil and the outside is reduced, and the temperature maintaining duration of the crude oil is greatly prolonged through the passive heat supply mode.

The invention provides a controller heat dissipation method, system and device, a vehicle and equipment. The method comprises the following steps: acquiring temperature information of a plurality of preset components of a vehicle machine; the temperature information is compared with a first preset threshold value, and if any real-time temperature value in the temperature information is larger than or equal to the first preset threshold value, the working state of a water circulation switch is controlled to be turned on, so that the vehicle machine is cooled through a water circulation loop; acquiring detection temperature information after a preset time period, wherein the detection temperature information comprises a real-time detection temperature value of at least one preset component acquired by at least one temperature sensor after the preset time period; the detected temperature information is compared with a second preset threshold value, and the working state of the water circulation switch is controlled according to the comparison result. Water circulation can be controlled to enter and exit from the controller system in time, and passive heating of the controller system due to the fact that the temperature of the water circulation system is too high is avoided.

The invention discloses an airway humidification oxygen uptake device, and particularly relates to the technical field of airway humidification oxygen uptake, the airway humidification oxygen uptake device comprises an oxygen uptake mask, the air inlet of the oxygen uptake mask is provided with an oxygen inlet pipe group, and the air outlet of the oxygen uptake mask is provided with an air outlet pipe; an active heating and humidifying assembly is arranged on the oxygen inlet pipe set and comprises an outer box, a water cavity and a heating cavity which are distributed up and down are formed in the outer box, and an air pipe used for communicating the water cavity with the oxygen inlet pipe set is fixed to the top end of the outer box so that water vapor in the water cavity can conveniently enter the oxygen inlet pipe set to heat and humidify oxygen. The air outlet pipe is connected with a passive heating and humidifying assembly, and the passive heating and humidifying assembly is arranged on one side of the outer box, extends into the outer box and is used for recycling temperature and water in air exhaled by a patient to heat and humidify oxygen. The oxygen is heated and humidified by combining active and passive heating and humidifying, so that the electric heating energy consumption is effectively reduced, the cost is saved, and the safety is high.

The utility model provides a smog detection device suitable for a low convection environment, comprising an active smog detector, a passive heating smog detector, a fixed smog detector and a host computer, the active smog detector, the passive heating smog detector and the fixed smog detector are connected with the host computer; the active smoke detector comprises a sampling tube, an aspirator, a first smoke sensor, a first circuit board and a first transmission module; the passive heating smoke detector comprises a heat convection chamber, an annular heater, a second smoke sensor, a second circuit board and a second transmission module; a three-dimensional sampling network is formed by adopting the active smoke detector, the passive heating smoke detector and the fixed smoke detector, so that early warning can be transmitted to an upper computer in time even in a low convection environment or a low smoldering condition.

The invention presented relates to a tank system (100) for storing cryogenic fluid, wherein the tank system (100) comprises: - a tank (101), - a heating element (103), wherein the tank comprises an inner tank (105) and an outer tank (107), wherein the inner tank (105) is spaced from the outer tank (107) by an intermediate volume (111), wherein the heating element (103) comprises a number of active heating elements (113) arranged on the outer tank (107), a number of passive heating areas (115) formed in the inner tank (105) and a control unit, wherein the control unit is configured to supply the plurality of active heating elements (113) with electrical current to heat the plurality of passive heating areas (115).

The invention relates to the technical field of overwintering storage of peony seeds in alpine regions, and discloses an overwintering storage method and storage device for peony seeds in alpine regions, the storage device comprises a passive heating mechanism, and the passive heating mechanism is fixedly mounted in a supporting cylinder. The overwintering storage method for the peony seeds in the alpine region comprises the steps that firstly, sand is stirred, a sand layer is laid, and the peony seeds are placed; secondly, the storage barrels and the storage plates are placed in a combined mode; thirdly, passive geothermal heating is conducted on the heat preservation barrel; 4, oxygen is introduced into the heat preservation cylinder at regular time, humidity is automatically controlled, and temperature is monitored in real time; and step 5, determining the low-temperature sand storage time of the peony seeds. The method has the beneficial effects that a temperature guarantee is provided for low-temperature sand storage stratification treatment in the alpine regions of the peony seeds, and through automatic control over ventilation, oxygen supply and humidity of the storage device, the appropriate humidity of the sand layer is kept, and the problem that the peony seeds are mildewed due to oxygen deficit in the overwintering storage process is solved.

A thermal management system for a neutral-forming transformer (NFT) includes a duct path with a fan, a damper, and inlet and outlet valves that direct airflow between the NFT and an auxiliary device. Sensors detect NFT temperature, NFT current imbalance, and auxiliary device temperature. A controller operates the fan and positions the damper to provide cooling of the NFT, bypass the NFT, or distribute airflow to both the NFT and the auxiliary device. The fan operates at multiple speeds and in forward or reverse directions. The damper positions include directing airflow exclusively to one region or splitting airflow between regions. Control is based on absolute values or rates of change of sensed conditions. When the auxiliary device temperature is below a cold-start value, the valves close and the fan deactivates to retain heat for passive heating.

Evaporator (12) for a domestic steam cooking appliance (1) has an evaporator chamber (13) with at least one passive heating element (34) and a water reservoir (14) arranged next to the evaporator chamber (13), wherein the evaporator chamber (13) and the water reservoir (14) are connected to each other by at least one fluidic interface (36), which can be opened by externally actuating a non-actuated non-conducting shut-off valve (37), and the water reservoir (14) can be closed in a gas-tight manner outside the at least one fluidic interface (36). A steam treatment drawer (5) has an evaporator (12), a steam treatment chamber (29) with a steam inlet (25) that can be connected to the evaporator (12) by steam technology, an actuating device (43) that is provided for actuating the fluidic interface (36) for opening and, in the case of insertion of the evaporator (12), for keeping it permanently open, and a heating device (44) that is provided for heating the at least one passive heating element (34). The invention is particularly advantageous for use on a steam cooking drawer of a multi-chamber cooking appliance, in particular.

The present invention relates to a device comprising at least one tank (1), at least one phase change material PCM (2) that is liquid (200) / solid (201) contained in this tank (1), and at least one compact heat exchange system (4) inside the tank, which heat exchange system uses a method for detaching the solid phase change material (201) from the surfaces of the heat exchange system (4) by active or passive heating means, or mechanical means, or pneumatic or hydropneumatic inflation means, or means for treating the surface of the heat exchange system (4) chosen specifically according to the properties of the phase change material (2) used, which device is characterised in that the maximum volume footprint dedicated to the heat exchange system (4) is designed so as to be much lower, in a ratio at least equal to 1:3, than the volume footprint dedicated to the storage capacity, and in that the phase change material (2) moves in its liquid (200) or solid (201) forms within the tank (1), whereby the suspended solid phase (201) must free up the space near the heat exchange surface (4) so that a new liquid volume (200) can be in contact for production, latent storage and thermal energy restitution in industrial and commercial applications.

Multiple temperature-control process for stators (7) and rotors of electric motors and components consisting of materials with different magnetic properties by means of a triplex furnace (1) for the quick, efficient, and uniform heating-up of preferably tubular components such as stators (7), wherein the magnetic parts of a component are primarily heated up by means of induction and at the same time non-magnetic parts of the same component are primarily heated up by means of infrared radiation, and at the same time and subsequently secondary heating takes place by means of convection, in particular by passive heating elements (10), which serves for finely adjusting the target temperature and for maintaining it.

The invention discloses a mobile power van which comprises a compartment installed on a van body, the compartment comprises an outer wall and an inner wall arranged on the inner side of the outer wall, an interlayer space is formed between the outer wall and the inner wall, and a multi-compartment assembly is arranged in the interlayer space; the compartment space is arranged between the outer wall and the inner wall of the compartment, the multi-compartment assembly is divided into a plurality of compartments through airtight flexible films, each compartment is filled with friction particles, the compartment space is arranged between the outer wall and the inner wall of the compartment, the multi-compartment assembly is divided into the plurality of compartments through the airtight flexible films, and the friction particles are filled in the compartments. The friction particles can relatively move to generate friction heat and micro electric energy in the driving vibration process of a vehicle, so that passive heating is realized by utilizing inherent mechanical energy of the vehicle, the problem that the energy consumption is up to 50-60% due to the fact that active heating depends on a vehicle-mounted power supply in the prior art is solved, the heating energy consumption is remarkably reduced by 15-25%, and the heating efficiency is improved. And the power endurance time of the mobile power supply vehicle in an extremely cold environment is prolonged.

The invention discloses a chassis heating control method and device, a medium and equipment, and the method comprises the steps: obtaining and extracting key features in icing associated data, combining the difference parameters of all operation nodes of an outdoor unit, constructing an adjacent matrix which can dynamically reflect the node interaction relation, and predicting the icing probability of a chassis. And therefore, more accurate heating control of the chassis is realized. The scheme is different from a traditional passive heating mode which depends on single temperature threshold triggering, and active response can be performed when the icing trend initially appears or even no obvious ice layer is formed, so that the hysteresis of heating starting is effectively reduced, and the icing risk is pre-judged and dealt with in advance.

The invention belongs to the technical field of electricity supplement and energy storage, and discloses an outdoor emergency electricity supplement and energy storage equipment structure which comprises emergency electricity supplement and energy storage equipment, a heating protection part is arranged on the emergency electricity supplement and energy storage equipment, and the heating protection part comprises a rectangular plate shell and a heat insulation sponge fixedly connected to the inner wall of the rectangular plate shell; a motor on a supporting plate is started to drive a rotating rod to rotate, the rotating rod in rotation can drive a fixedly-mounted rotating disc to rotate in the inner wall of a conical water bucket at the same time, and once a discharging hole in the rotating disc is separated from the bottom end of a loop bar plate through rotation, quicklime can passively pass through the discharging hole to be discharged; the quick lime and the water body in the conical water bucket are mixed, so that the water body is quickly and passively heated, and a plurality of crushing wheels are arranged, so that the situation that mud blocks which are possibly generated can not be easily mixed through simple stirring when the quick lime and the water body are mixed can be avoided, the fusion degree is ensured, and the water body efficiently generates high-temperature water vapor.

A semiconductor processing equipment and its multi-zone heating plate and multi-zone temperature control driving method, by setting a current limiting element to communicate the heating sheet in different heating zones of the multi-zone heating plate of the semiconductor processing equipment, each heating sheet will experience active heating operation and passive heating operation, each heating sheet will be applied with active heating power and at least passive heating power, by controlling the proportion of active heating power and passive heating power on the heating sheet, the sum of active heating power and all passive heating power applied to the same heating sheet is equal to the predetermined heating power of the heating sheet, finally realizing independent temperature control of each heating sheet, greatly reducing the maximum instantaneous heating current, reducing the instantaneous heating power and current of each heating sheet, the heating sheet is not easy to cause material cracking due to frequent and rapid heating and cooling, and the power and current level of the corresponding switch is also reduced.

The application relates to a defrosting system and a refrigerator, the defrosting system comprising a heating module, a heat exchange module, a detection module and a control module; the heat exchange module comprises a heat exchange pipeline and a damper, the heat exchange pipeline comprises a first air vent and a second air vent, the first air vent is arranged in an evaporator chamber, the second air vent is arranged in a compressor chamber, and the damper is arranged in the heat exchange pipeline; the heating module comprises a passive heating device, the passive heating device is arranged on the evaporator; the detection module is used for detecting the frost thickness of the evaporator; the control module is configured to control the refrigerator to enter a defrosting mode when the frost thickness of the evaporator is greater than or equal to a frost thickness threshold value; in the defrosting mode, the damper is opened, the compressor chamber is communicated with the evaporator chamber, and the evaporator is heated by the heat stored by the passive heating device and the heat in the compressor chamber. Through the application, the problem of large energy consumption of the traditional defrosting mode is solved.