476results about How to "Guaranteed heat transfer efficiency" patented technology

The invention discloses a self-heating type alcohol reforming hydrogen production micro channel reactor with the micro-lug boss array structure. Three layers of platy reaction carriers are all provided with micro-lug boss array structures; an upper layer and a lower layer are single-side micro-lug boss array structures; a middle layer is a double-side micro-lug boss array structure; the micro-lug bosses are arranged in the mode of parallel array; the three layers are cascaded to form a reaction channel with an inlet of 90 degrees; both ends of the channel are respectively provided with connector lugs; the gas inlet is provided with a detachable adapter and an outlet is provided with a fixed-type adapter. An upper layer channel is a catalytic reforming hydrogen production channel, and a lower layer channel is a combustion channel. The two layers of channel structures both adopt an open structural type being beneficial for the sediment of the catalytic coating. Fuel gases such as hydrogen and the like are combusted in the combustion channel and generate lot of heat which is transferred into the catalytic reforming hydrogen production channel by the middle layer of the reactor so as to meet the requirement of the steam reforming hydrogen production reaction; the reactor can produce hydrogen in a self-heating type. The invention increases the specific volume of the reactor and increases the yield of the alcohol reforming hydrogen production.

A loop-type thermosiphon capable of stable operation regardless of fluctuation of heat load and a Stirling refrigerator using the same are provided. The loop-type thermosiphon transferring heat from a high-temperature heat source using a working fluid includes a evaporator having a heat absorption portion and evaporating the working fluid by depriving the high-temperature heat source of heat through the heat absorption portion, a condenser located above the high-temperature heat source and condensing the working fluid that has evaporated in the evaporator, and a pipe connecting the evaporator and the condenser so as to form a loop. In the loop-type thermosiphon, the working fluid that has passed through the condenser is brought in contact with the heat absorption portion before it is pooled in a liquid pool for the working fluid in the evaporator, so as to exchange heat with the same

The invention discloses an efficient and compact pre-cooling heat exchanger for a pre-cooling gas sucking type engine. The efficient and compact pre-cooling heat exchanger for the pre-cooling gas sucking type engine comprises a pre-cooling heat exchanger body in the shape of a similar cylinder; the cross section of the similar cylinder is in the shape of a ring different in diameter; the longitudinal section of the similar cylinder is formed by two symmetrically arranged arc segments; the center angle of each arc segment is 45 degrees; the pre-cooling heat exchanger body comprises a cold flow outlet pipe, a cold flow inlet pipe and a plurality of heat exchanging pipes; each heat exchanging pipe is in the shape of an arc; the arc-shaped center angle of each heat exchanging pipe is 45 degrees; and the heat exchanging pipes are distributed into the similar cylinder in a crossed manner. The efficient and compact pre-cooling heat exchanger for the pre-cooling gas sucking type engine can have the engineer realizability on the premise that the heat exchanging effect is guaranteed, so that air incoming flow in front of a gas compressor can be pre-cooled, the high temperature over-running problem of gas compressor blades is solved, the engine thrust is increased, the flight envelop is extended, the welding difficulty is effectively reduced, the frosting blockage problem is effectively solved, the engineer realizability is achieved under the current technology, and after the efficient and compact pre-cooling heat exchanger for the pre-cooling gas sucking type engine is applied to the pre-cooling gas sucking type engine, the engine performance can be substantially improved.

The invention discloses an air conditioner. The air conditioner comprises a filter screen, a light emitting device arranged on one side of the filter screen, a light receiving device arranged on the other side of the filter screen, a control module connected with the light emitting device and the light receiving device, and a fan connected with the control module; the light receiving device receives light emitted by the light emitting device and transmitting through the filter screen; and the control module calculates actual light transmittance according to the magnitude of the light received by the light receiving device and preset reference light magnitude, and adjusts the rotating speed of the fan according to the actual light transmittance. The invention further discloses a control method of the air conditioner. As the rotating speed of the fan is adjusted according to the actual light transmittance, the circulating air volume of the air conditioner is always kept at a preset level, and the air conditioner also can keep preset heat exchange efficiency under the condition of dust accumulation on the filter screen.

The invention relate to the technical field of chemical equipment, in particular to a reaction kettle. The reaction kettle comprises a reaction kettle casing, a feeding port, a discharging port, a stirring shaft and a motor, wherein the feeding port is formed in the upper part of the reaction kettle casing; the discharging port is formed in the bottom of the reaction kettle casing; one end of the stirring shaft extends into the reaction kettle casing, and the other end extends out of the reaction kettle casing and is connected with the motor; an isolation layer is arranged in the reaction kettle casing; a water inlet is formed in the upper part of the reaction kettle casing; a water flow channel is formed between the isolation layer and the reaction kettle casing; a hot water outlet is formed in the bottom of the reaction kettle casing and connected with a hot water pipe, a control valve is arranged on the hot water pipe, and one end of the hot water pipe is connected with a hot water tank. According to the reaction kettle adopting the technical scheme, resources are reasonably utilized, and heat energy is recycled.

A mechanical shaker is composed of vibrating unit, sealing part, filtering and supporting-connecting unit. The piston rod is impacted by the kinetic energy generated from cylinder. The kinetic energy is then transferred to the impacting rod for impacting against the gasifying apparatus to remove the dust deposit and increase heat transfer efficiency.

The invention relates to a condensing gas boiler, which belongs to the technical field of heat exchange facilities. The condensing gas boiler mainly comprises a burner and a heat exchange device with smoke and water passages, wherein the heat exchange device comprises a horizontal heat exchanger and a V-shaped heat exchanger which are mutually connected in series; a first group of water pipes forming a roundabout flow passage are distributed at the circumference of the horizontal heat exchanger, and the middle part of the horizontal heat exchanger is provided with a cylindrical combustion chamber; the burner is arranged at one end of the cylindrical combustion chamber, and the smoke passes through the horizontal heat exchanger and enters the V-shaped smoke passage of the V-shaped heat exchanger through a downward through hole; a second group of water pipes forming a roundabout flow passage are distributed in the V-shaped smoke passage at intervals; and reverse heat exchange is formed between the water first flowing through the second group of water pipes and then the first group of water pipes and the smoke coming from the combustion chamber and flowing through the V-shaped smoke passage. The heat exchange is sufficient, the flow rate of the cooled smoke can be kept to ensure the heat exchange efficiency, and the condensing gas boiler has a reasonable structure and occupies small area.

The invention provides an integrated primary surface micro-channel compact heat exchanger comprising a hot fluid inlet, a hot fluid outlet, a micro-channel compact type corrugated plate heat exchange core body, a cold fluid inlet and a cold fluid outlet. The hot fluid inlet is connected to one side of the micro-channel compact type corrugated plate heat exchange core body and the hot fluid outlet is connected to the other side of the micro-channel compact type corrugated plate heat exchange core body. The cold fluid inlet is connected to one end of the micro-channel compact type corrugated plate heat exchange core body and the cold fluid outlet is connected to the other end of the micro-channel compact type corrugated plate heat exchange core body. The micro-channel compact type corrugated plate heat exchange core body comprises a plurality of mutually stacked cold fluid channels and hot fluid channels. The hot fluid inlet is connected with the hot fluid outlet through the hot fluid channels and the cold fluid inlet is connected with the cold fluid outlet through the cold fluid channels. The cold fluid channels and the hot fluid channels are in solid contact and deformation and sliding therebetween are prevented, so that the overall heat exchange efficiency and the using safety of the heat exchanger are guaranteed.

The invention provides a hydrate sediment CT triaxial testing device, and belongs to the technical field of geotechnical engineering foundation physical property measurement. Aiming at the deficiencyof the invention of a visualization testing device for natural gas hydrate sediment mechanical properties, the hydrate sediment CT triaxial testing device is subjected to redesigning and optimization,under the premise that the hydrate reservoir static force, the dynamic properties and the creep property can be obtained, the stability in the scanning rotating process of a triaxial apparatus, the hydrate sample temperature control accuracy and the penetrating property of X-rays of a triaxial apparatus pressure chamber are improved, the optimal CT imaging effect is obtained, and powerful hardware support is provided for the verification of the reservoir deformation mechanism in the decomposition process of a hydrate.

The invention is applicable to the field of air cold medium pre-heating and particularly relates to a self-supporting wide gap heat exchanging element. The self-supporting wide gap heat exchanging element comprises a plurality of plate pairs which are overlapped layer by layer; each plat pair comprises upper and lower plate sheets which are arranged oppositely; a plurality of rows of convex ripples and concave ripples are distributed on the upper surfaces of the plate sheets along the same axis direction; the convex ripples and concave ripples are obtained by upwards and downwards pressing and molding the plate sheets; the convex ripples and concave ripples are distributed at intervals; the positions of the convex ripples and concave ripples on the upper plate sheets in the plate pairs correspond to the positions of the convex ripples and concave ripples on the lower plate sheets in the plate pairs; one group of opposite edges of the plate sheets are upwards folded and are transited into planes; the other group of opposite edges of the plate sheets are downwards folded and are transited into planes; the two adjacent folding edges in each plate pair are welded to form an air channel; the two adjacent plate pairs are symmetrical up and down, and the adjacent folding edges between the two adjacent plate pairs are welded to form a flue gas channel. The self-supporting wide gap heat exchanging element has the advantages that a wide gap channel can be combined, dirt and dust are not easy to deposit, the resistance fall also can be reduced and the heat exchanging efficiency is sufficiently improved.

The invention relates to the technical field of power batteries, in particular to a battery module. The battery module comprises a module framework and a battery pack which is arranged in the modularframework and formed by arranging single batteries and further comprises a temperature adjusting component for heating and/or cooling the battery pack; and an installation hole is formed in the bottomof the module framework, the bottom of the battery pack is exposed in the installation hole, and the temperature adjusting component is arranged in the installation hole and arranged on the bottom face of the battery pack in an attached mode. Due to the fact that the installation hole is formed in the bottom of the module framework, technical staff can directly arrange the temperature adjusting component in the installation hole in the attached mode; due to the fact that the module framework can support the battery pack, the technical staff do not need to arrange a bottom plate forming complete closure on the overall bottom face of the battery module; and due to the fact that the temperature adjusting component directly makes contact with the bottom of the battery pack, the heat conducting loss is reduced, assembly parts of the overall battery module are reduced, and therefore the battery module is lighter and good in heating or cooling effect.

The invention discloses a cleaning reminding method for an air conditioner filtering device. The method comprises the following steps that S1, the air inlet temperature and the air outlet temperature of an indoor unit are collected, and in addition, a different value between the air inlet temperature and the air outlet temperature is calculated; S2, when the different value between the air inlet temperature and the air outlet temperature is greater than a temperature difference preset value, the opening degree of an electronic expansion valve is detected; S3, when the opening degree of the electronic expansion valve is greater than a first opening degree preset value during heating or the opening degree of the electronic expansion valve is smaller than the second opening degree preset value during refrigeration, warning is carried out. The cleaning reminding method for the air conditioner filtering device disclosed by the invention has the advantages that the cleaning can be carried out according to the actual work condition of the filtering device, further, the labor and material waste caused by regular cleaning can be relieved, meanwhile, the filtering device can be cleaned in time, and the heat exchange efficiency of an air conditioner can be ensured. The invention also discloses a cleaning reminding device for the air conditioner filtering device adopting the cleaning reminding method.

The invention discloses an anhydrous sodium sulfate production system and a production method and aims to solve the problems that the conventional anhydrous sodium sulfate is high in production cost and low in production quality. The anhydrous sodium sulfate production system comprises a multistage reduction tower, a neutralization reaction kettle, a flocculent precipitate tank, a crystallizing tank and a vapor compressor, wherein evaporation and crystallization are finished in one unit; the chromium salt denitration liquid is subjected to reduction, neutralization reaction, flocculent precipitate and multistage filtering and is pumped into the evaporation and crystallization system, the crystal product is discharged and is pumped into a centrifugal machine through a crystal slurry pump, the centrifuged crystal product is fed into a fluidized bed dryer through a spiral conveyer, and the dried finished product enters a storage bin and is packaged. The anhydrous sodium sulfate granules can be effectively and freely controlled, and the technical problems that the anhydrous sodium sulfate is high in production cost, the evaporator is short in operation cycle and bad in heat exchange effect are solved.

The invention belongs to the technical field of rubber production, and particularly relates to a large rubber production granulator which comprises a granulator cylinder, a heating water pipe, a granulating mould, a drying box, an elastic plate, a discharge hopper, a transmission shaft, a spiral plate, rotating rods and stirring plates. A group of rotating rods are horizontally arranged on the spiral plate, first rectangular projections on the rotating rods are connected with second rectangular projections on driven gears through two symmetric springs, a group of stirring plates are arranged on the rotating rods, rubber raw materials at the center of the granulator cylinder and on the inner wall of the granulator cylinder are exchanged, so that the rubber raw materials in the granulator cylinder uniformly contact with the inner wall of the granulator cylinder and are uniformly heated, the heat conducting efficiency of the heating water pipe is ensured, and heat use ratio is increased.Besides, the rotating rods are flexibly connected with the driven gears, impact force applied to the stirring plates is reduced, and the service life of the stirring plates is prolonged.

The invention provides a multi-split air conditioning system. The multi-split air conditioning system comprises an indoor unit, multiple outdoor units and super-cooling devices, wherein the multiple outdoor units are communicated with the indoor unit through pipelines after being connected in parallel, the super-cooling devices are detachably arranged on the pipelines, and the super-cooling devices are communicated with the indoor unit and the multiple outdoor units which are connected in parallel. The multi-split air conditioning system provided by the invention is provided with the multiple outdoor units which are connected in parallel, the super-cooling devices are detachably arranged on the pipelines, whether the super-cooling devices need to be arranged or not can be selected by a user according to self needs, and the super-cooling devices can be arranged in any positions on the pipelines; compared with a mode of arranging the super-cooling devices in the outdoor units in the prior art, the super-cooling devices are detachably arranged on the pipelines, on one hand, the using amount of the super-cooling devices is effectively reduced, the problem of resource waste is avoided, and thus the production cost of the multi-split air conditioning system is effectively reduced; on the other hand, the size of the outdoor units is effectively reduced, thus the conveying amount of the outdoor units is increased, and the conveying cost is reduced.

The invention discloses an air conditioner control method which is applied to a fresh air conditioner. The fresh air conditioner comprises a fresh air heat exchanger and a first electronic expansion valve, and the fresh air heat exchanger is connected with the first electronic expansion valve in series. The air conditioner control method comprises the following steps that when the fresh air heat exchanger is in dehumidification operation, the fresh air temperature and the fresh air humidity are obtained, and the first temperature of the fresh air heat exchanger is obtained; and according to the fresh air temperature, the fresh air humidity and the first temperature, the first electronic expansion valve is controlled to adjust the opening degree. The invention further discloses an air conditioner control device, the fresh air conditioner and a readable storage medium. According to the air conditioner control method, the dehumidification effect is improved while the heat exchange efficiency of the fresh air heat exchanger is guaranteed.

An automatic assembling apparatus for the heat conducting tube and heat radiating fins is composed of a continuous punching die unit with upper and lower dies, and upper and lower drive units arranged respectively in said upper and low dies. Said continuous punching die unit can punch the heat radiating fins and fixing them onto a heat conducting tube. Said upper drive unit can damp the punch head. Said lower drive unit can clamp said tube and move the finished product out.

The present invention discloses a subway heat pump type air-conditioning structure. An outlet end of a compressor (1) of a heat pump type air-conditioner for a subway vehicle is connected with an input end of a condenser (6) through a refrigeration electromagnetic valve (4) and an exhausting damping pipe (2). An output end of the condenser (6) is connected with an inlet end of the compressor (1) through an air-returning damping pipe (13) and a heating electromagnetic valve A (3'). The outlet end of the compressor (1) is connected with an input end of an evaporator (11) through a heating electromagnetic valve (3) and the exhausting damping pipe (2). An output end of the evaporator (11) is connected with the inlet end of the compressor (1) through the air-returning damping pipe (13) and a refrigeration electromagnetic valve A (4'). The output end of the evaporator (11) is connected with the input end of the condenser (6) through a liquid storage device A (9'), a one-way valve A (7') and a thermostatic expansion valve A (10'). An temperature sensing packet and a capillary of the thermostatic expansion valve A (10') are connected with the output end of the condenser (6). The output end of the condenser (6) is connected with the input end of the evaporator (11) through the liquid storage device (9), the one-way valve (7) and the thermostatic expansion valve (10). The temperature sensing packet and the capillary of the thermostatic expansion valve (10) are connected with the output end of the evaporator (11). The air-conditioning structure is safe, energy-saving, environmentally-friendly and highly effective.

The invention provides a device for recycling waste heat of flue gas in a power station boiler, which is characterized in that one end of a water inlet pipe of a heat exchanger is communicated on a pipeline between a gland heater and a low pressure heater; the other end of the water inlet pipe is communicated with a coil in the heat exchanger; the other end of the coil is connected with a deaerator through a water return pipe of the heat exchanger; the deaerator is connected with the low pressure heater through the pipeline; a clean water return pipe is arranged at the bottom of the heat exchanger; a nozzle is arranged at the upper part of the heat exchanger and is communicated with one end of a clean water pipe; the other end of the clean water pipe is connected with a water collecting tank or a desulfurizer storing pot; one end of a flue pipe is connected with an electrostatic dust collector through a draught fan; and the other end of the flue pipe is communicated with a chimney or a desulfurizing tower through the heat exchanger. The device for recycling waste heat can recycle most of heat in the flue gas discharged from the boiler and can convert the recycled heat into the heat of the condensation water of a steam turbine, thereby reducing the steam consumption of the low pressure heater in a heat regenerative system of the steam turbine and saving a large amount of energy sources. A cleaning device is arranged in the heat exchanger, thereby ensuring the cleanness and the heat exchange efficiency of a heat exchange surface.

The invention provides a method and a system for recycling waste heat of ammonia water. The method comprises the following steps: circulating circulatory ammonia water into a gas collecting pipe of a coke oven, cooling raw gas for the first time, heating the circulatory ammonia water, feeding the heated circulatory ammonia water into a heat exchange device, and heating the circulating water in the heat exchange device; circulating the circulating water heated in the heat exchange device into a lithium-bromide absorption-type refrigerating machine as a heat source to refrigerate frozen water in the lithium-bromide absorption-type refrigerating machine; meanwhile, circulating a refrigerant into the lithium-bromide absorption-type refrigerating machine; and feeding the cooled circulating water to the heat exchange device and heating again. According to the method provided by the invention, the waste heat in the circulatory ammonia water is effectively recycled and is used for refrigeration, the waste heat recovery rate of the circulatory ammonia water is improved, and the waste of the energy is effectively avoided.