7256results about "Stationary tubular conduit assemblies" patented technology

The present invention relates to the technical field of waste heat recovery equipment, and specifically discloses a waste heat recovery device for flue gas in a thermal power plant. It includes a box body with an upper smoke chamber, a heat exchange chamber and a lower smoke chamber inside. A number of smoke pipes connecting the upper smoke chamber and the lower smoke chamber are fixed in the heat exchange chamber; above the smoke pipes, there is a piston cylinder fixed by the box body; the upper end of the piston cylinder is connected to a high-pressure gas supply pipe, and a piston is arranged inside. The piston is connected with a scraping head through a push rod; side holes are provided on the push rod; when the high-pressure gas drives the piston to move downward, the scraping head moves along the inner wall of the smoke pipe to scrape off the ash slag. The waste heat recovery device for flue gas in this thermal power plant has a cleaning function and a better cleaning effect, high heat exchange efficiency and good waste heat recovery effect. The waste heat recovery device for flue gas in this thermal power plant can be automatically cleaned without disassembling components, is fast and efficient, and can be operated online. The ash slag scraped off during the cleaning process can be centrally recovered, avoiding re-mixing into the flue gas again, reducing the workload in the flue gas dust treatment link, and saving the subsequent environmental protection treatment cost.

The invention discloses a horizontal shell and tube heat exchanger, which relates to the technical field of heat exchangers and comprises a shell, two sides of the shell are fixedly connected with a first tube box and a second tube box respectively, an inner cavity of the shell is provided with a plurality of baffle plates, each baffle plate is provided with a plurality of heat exchange tubes, and one side of each baffle plate is provided with a control assembly mounted in the second tube box. According to the horizontal shell and tube heat exchanger, the scraping ring can move left and right along with the movable rod, impurities on the outer wall of the heat exchange tube can be scraped away, in the long-term operation process of heat exchange equipment, various impurities are prone to being accumulated on the outer wall of the heat exchange tube, the impurities can reduce the heat exchange efficiency and increase the energy consumption of the equipment, and the scraping ring can slide to clean the heat exchange tube. The impurities can be effectively removed in time, the surface of the heat exchange pipe is kept clean, it is ensured that heat exchange equipment is in a good working state all the time, good heat exchange between a heat exchange medium and the heat exchange pipe can be ensured through the clean outer wall of the heat exchange pipe, heat resistance is reduced, and therefore the heat exchange efficiency is improved.

The utility model relates to the technical field of shell and tube heat exchangers, and discloses a shell and tube heat exchanger with a heat exchange area adjusting function, which comprises a shell and two supporting seats, the top surfaces of the two supporting seats are fixedly connected with the bottom surface of the shell, an adjusting mechanism and a filtering mechanism are arranged on the outer side of the shell, and the filtering mechanism is positioned on the outer side of the adjusting mechanism; the adjusting mechanism comprises an adjusting assembly and a heat exchange assembly. The adjusting assembly is located on the surface of the heat exchange assembly. The heat exchange assembly comprises two tube boxes. According to the shell-and-tube heat exchanger, the tube box and the tube plate are conveniently mounted and dismounted through the adjusting mechanism and the heat exchange assembly by means of first bolts, an operator can conveniently dismount and maintain the interior of the shell-and-tube heat exchanger, the adjusting assembly drives two sliding blocks to move by means of a double-end threaded rod, and therefore a baffle slides out of a sliding groove and blocks water entering a heat exchange tube; the number of the heat exchange pipes is adjusted, the heat exchange area is conveniently controlled, the heat exchange requirements under different working conditions are met, and the flexibility and efficiency of the shell and tube heat exchanger are improved.

The invention discloses an efficient gradient utilization medium and low temperature flue gas waste heat recovery system and method, and relates to the technical field of waste heat recovery. When the contact time between the medium and low temperature flue gas and a heat medium is short and the heat conduction contact area is small, the heat transferred to the heat medium by the medium and low temperature flue gas is small, the waste heat recovery amount is small, and the recovery effect is affected. The arc-shaped recess in the center of the inner side of the heat medium bin is matched with the smoke exhaust mechanism, the contact area between the inner side of the heat medium bin and smoke is increased through the recess, the smoke exhaust mechanism limits smoke exhaust, the contact area between the smoke and the heat medium bin is increased, and meanwhile the contact time between the smoke and the heat medium bin is prolonged; the heat of medium and low temperature flue gas is more effectively transferred to the heat medium in the heat medium bin, and the situation that the flue gas and the heat medium bin are small in contact area and short in retention time, heat is not completely transferred and discharged, and the waste heat recycling rate is low is avoided.

The invention relates to the technical field of heat exchangers, and particularly discloses an efficient heat transfer device of a heat exchanger for a geothermal source heat pump, which comprises a heat exchanger shell, a water tank and a buried pipe, end covers are installed at the two ends of the heat exchanger shell, and heat exchange pipes are arranged in the heat exchanger shell. A cold source water inlet pipe and a cold source water outlet pipe are arranged on the outer wall of the heat exchanger shell; the water tank is arranged outside the heat exchanger shell; the buried pipe is buried in soil; a heat source water inlet pipe communicated with the buried pipe is arranged on the end cover at one end of the heat exchanger shell, and a heat source water outlet pipe communicated with the water tank is arranged on the outer wall of the end cover at the other end; a water conveying mechanism is further arranged outside the heat exchanger shell. A descaling mechanism is arranged in the heat exchanger shell; in the long-time working process of the heat exchange pipe, the outer wall of the heat exchange pipe is cleaned through the descaling mechanism, water scales on the outer wall of the heat exchange pipe are scraped off, and the heat exchange efficiency is improved.

The invention provides a coal mine ventilation air methane synergistic enrichment and fluidized heat storage combustion system and method. The system comprises an air shaft diffusion tower and a ventilation air methane collecting device, the method comprises the following steps: collection and compression of ventilation air methane, cooling and boosting adsorption of an adsorption tower, pressure drop equalization of the adsorption tower, temperature rise, pressure reduction and desorption of the adsorption tower, pressure rise equalization of the adsorption tower, periodic cycle work of the adsorption tower, preheating of a packed bed of a heat storage furnace, fluidized heat storage oxidation of coal gangue and gas, and waste heat recovery and utilization. According to the invention, safe and efficient enrichment of ventilation air methane can be realized, and fluidized heat storage oxidation coupling utilization of concentrated gas and coal gangue particles can be realized; the oxidation waste heat is used as a generator heat source; the carbon reduction scheme of large-scale separation and concentration-synergistic oxidation-efficient utilization of the oversize coal mine ventilation air methane is formed, the coal industry is assisted to achieve the goal of'two wastes' and sustainable development, and large-flow, low-cost, safe and efficient treatment and utilization of the ventilation air methane discharged by an oversize low-gas mine can be achieved.

The present invention relates to the technical field of alumina production. The present invention discloses a waste heat recovery device for a roasting furnace, which comprises a flue gas fan, a heat exchange pipeline and an exhaust hood. A flue gas pipeline is arranged at the inlet of the flue gas fan and communicated with an external roasting furnace. The outlet of the flue gas fan is communicated with a plurality of heat exchange pipelines. The top ends of the heat exchange pipelines are jointly communicated with the exhaust hood. A flue gas outlet pipe is arranged at the top of the exhaust hood, and an outlet valve is arranged on the flue gas outlet pipe. It is characterized in that: a converging throat is arranged in the middle of the heat exchange pipeline, and a diffusor wall with horizontal displacement is arranged above the throat. The advantages of the present invention compared with the prior art are as follows: by performing heat exchange while pressurizing the flue gas flow, the water vapor contained in the flue gas can be liquefied and release heat, and its latent heat of vaporization can be fully released and absorbed. For the field to which the present invention is applied, the latent heat of vaporization can be used to heat mother liquor and flat plate washing water, saving the steam cost for heating flat plate washing water, reducing energy consumption and reducing emissions.

The utility model discloses a detachable multi-stage heat exchanger which comprises a shell, and at least two sets of tube pass heat exchange assemblies perpendicular to the axial direction of the shell are arranged in the shell from top to bottom. Each group of tube pass heat exchange assembly comprises a first tube box, a second tube box, a tube bundle, a first tube plate, a second tube plate, a first tube box flange, a first shell flange, a second tube box flange and a second shell flange; the size of the first tube plate is larger than the inner size of the first tube box flange and the first shell flange, and the first tube plate is clamped and fixed through the first tube box flange and the first shell flange. The size of the second tube plate is smaller than the inner size of the second tube box flange and the inner size of the second shell flange, a plurality of fixing grooves are evenly formed in the surface of the outer edge of the second tube plate, fixing rings are installed in the fixing grooves, the fixing rings are fixedly connected with the second tube plate through external bolts, and the fixing rings are clamped and fixed through the second tube box flange and the second shell flange. According to the heat exchanger, multiple sets of heat exchange can be conducted at the same time, and each set of tube pass heat exchange assembly is detachable.

The invention discloses an immersed liquid cooling device, which includes a liquid cooling radiator with a first liquid box at one end thereof combined with the open end of a liquid storage box, so that a heat dissipation radiator pipe set at the other end is immersed in the cooling fluid in the liquid storage box. The liquid storage box is externally equipped with a cooling chip and a heat sink. When the cooling chip is energized, the cooling chip will reduce the cooling fluid in the liquid storage box to a freezing temperature, so that the cooling fluid can quickly cool down the working fluid in the heat dissipation radiator pipe set, thereby preventing the heat dissipation radiator pipe set from being affected by the ambient temperature in its heat dissipation efficiency.

The invention relates to the technical field of heat exchange equipment, and discloses a gas-fired boiler equipment power heat exchange device which comprises a heat exchange box, a heat exchange pipe is installed in the heat exchange box, a plurality of heat exchange fins are installed on the heat exchange pipe, and the heat exchange fins are connected through heat conduction fins; the cleaning block is slidably mounted on the heat exchange fins, and a cleaning brush is mounted on the surface, facing the heat exchange fins, of the cleaning block; the driving assembly is mounted in the heat exchange box; through the arrangement of the heat conduction fins, the temperature difference between the windward heat conduction fins and the leeward heat conduction fins can be reduced, and after the heat conduction fins are used for a period of time, the driving assembly drives the cleaning block to rotate, so that the cleaning block slides on the surfaces of the heat exchange fins to clean dirt attached to the surfaces of the heat exchange fins, and it is ensured that each heat exchange fin is in a clean state; the heat exchange fins can conduct heat sufficiently, so that it is guaranteed that the temperature of the heat exchange fins in all the areas is not uneven, and the heat exchange efficiency of the device is effectively improved.

The invention discloses a novel washout-corrosion-resistant waste heat recovery heat exchanger, and aims to solve the problem of washout corrosion of high-temperature and high-speed dust-containing flue gas to the heat exchanger. The heat exchanger comprises an upper shell, a lower shell, an integrated side plate box, heat exchange tubes, a discharge outlet, interception fins and the like. The heat exchange pipes are distributed in a multi-group array mode, and smoke impact is reduced through a smooth surface and a dense structure. The inverted-V-shaped intercepting fin plate is located above the discharge outlet and can intercept particles in the flue gas and recycle the particles through the negative pressure pipe. The whole device adopts a multi-channel structure to guarantee the flue gas treatment and flowing efficiency. The heat exchanger can reduce erosive wear, prolong the service life of equipment, stably recover waste heat and guarantee smooth proceeding of subsequent processes, is suitable for high-temperature dust-containing flue gas scenes such as an aluminum melting furnace, and is energy-saving and environment-friendly.

The utility model discloses a refrigeration type air dryer, which belongs to the technical field of air drying devices and comprises a cooling cylinder, an air inlet is arranged on the right lower side of the outer end of the cooling cylinder, and an air outlet pipe is fixedly mounted at the upper end of the cooling cylinder. A temperature returning system is mounted in the cooling cylinder; the temperature returning system comprises a baffle ring and a temperature returning heating pipe; an evaporation system is further installed in the cooling barrel and arranged in the temperature returning system. By means of the mode, gas communication of the gas flowing area and the pretreatment heating area is effectively isolated; and an inlet of the evaporation system is formed in a gas flowing area, so that the evaporated and cooled gas is heated, and the air drying effect of the device is further enhanced.

The invention relates to the technical field of medicine production, in particular to condensing equipment for distillation separation of medical intermediates, which comprises a condensing tank, a refrigerant feeding pipe mounted on the lower side of the condensing tank and a refrigerant discharging pipe mounted on the upper side of the condensing tank, the condensation pipe assembly comprises a plurality of spiral condensation pipes, a feeding pipeline and a liquid outlet pipe, the feeding pipeline is arranged on the side, away from the refrigerant inlet pipe, of the condensation tank, the spiral condensation pipes are arranged downwards in a spiral mode, the multiple spiral condensation pipes are arranged in an up-down parallel mode, and the liquid outlet pipe is arranged among the multiple spiral condensation pipes; a flow guide ring layer is arranged on the inner side of the condensation pipe, a plurality of annular condensation grooves which are arranged in parallel up and down are formed in the flow guide ring layer, a flow guide cavity is formed in the flow guide ring layer, and a plurality of spraying openings communicated with the flow guide cavity are annularly formed in the annular condensation grooves. The contact time of a refrigerant and the spiral condensation pipe is prolonged, and therefore the condensation efficiency is improved.

The utility model relates to the technical field of air compressor heat recovery, and discloses a heat recovery pipeline device for a screw air compressor, which comprises a bottom plate, a shell and an air compressor main body, the shell is fixedly connected with the bottom plate, a support seat is arranged on one side of the shell, the air compressor main body is mounted at the upper end of the support seat through a fastener, and the air compressor main body is fixedly connected with the bottom plate. According to the air compressor, heat generated during working of the air compressor body is transmitted to the multiple sets of heat conducting fins below through the heat conducting blocks, and then the heat is effectively transmitted to gas passing through the spiral pipe through the multiple sets of heat conducting fins; then heated gas enters a heat conduction coil pipe through a conveying pipe and a gas inlet pipe, a motor drives a stirring column to rotate through an output shaft, multiple sets of stirring blades on the stirring column stir water, under cooperation of a plurality of threaded groove holes, flowing of the water in the water storage tank is accelerated, the water is fully heated, and the recovery efficiency is improved.

The invention discloses an ultralow-temperature high-pressure environment material mechanical property test system and method, the test system comprises a medium circulation system and a cold source supply system, the medium circulation system comprises a heat exchanger tube pass, a circulation pump and a test box, the heat exchanger tube pass, the circulation pump and the test box are connected in sequence, and a medium outlet of the test box is connected with a blow-down pipe; the cold source supply system comprises a heat exchanger shell pass, a first valve bank, a second valve bank, a gas-liquid mixer, a liquefied gas pump, a normal-temperature gas storage tank and a first liquefied gas storage tank, the heat exchanger shell pass accommodates the heat exchanger tube pass, an outlet of the first liquefied gas storage tank is connected to the first valve bank and the liquefied gas pump, and the liquefied gas pump is connected to the second valve bank. The first valve group and the second valve group are both connected to an inlet of the gas-liquid mixer, the second valve group is further connected to a pipeline where the circulating pump is located, an outlet of the gas-liquid mixer is connected to one end of the heat exchanger shell side, and the other end of the heat exchanger shell side is connected to the blow-down pipe through a discharge pipeline.

Provided is a carbon dioxide capturing apparatus comprising: a reaction tower including a carbon dioxide adsorption unit or a carbon dioxide absorption unit which adsorbs or absorbs carbon dioxide from exhaust gas; desorption tower connected to the reaction tower and including an adsorbent heating unit for heating an adsorbent circulating inside or an absorbent heating unit for heating an absorbent circulating inside; an adsorbent or absorbent which circulates in the reaction tower and the desorption tower and alternately adsorbs and desorbs carbon dioxide or alternately absorbs and desorbs carbon dioxide; and a heat exchange unit which desorbs carbon dioxide from the adsorbent on which carbon dioxide is adsorbed or the absorbent in which carbon dioxide is absorbed, through heat exchange between the adsorbent on which carbon dioxide is adsorbed and the heated adsorbent, or between the absorbent in which carbon dioxide is absorbed and the heated absorbent, wherein the adsorbent on which carbon dioxide is adsorbed and the heated adsorbent, or the absorbent in which carbon dioxide is absorbed and the heated absorbent are transferred in a co-current flow manner.

The invention discloses a gas-fired boiler flue gas waste heat recovery device and method. The gas-fired boiler flue gas waste heat recovery device comprises a waste heat recovery assembly, and the waste heat recovery assembly comprises a recovery box, a communicating pipe, a driving motor, a transmission rod, a transmission gear, a rotating disc, a gear ring, a stirring plate and a mounting shaft; and a first heat exchange chamber, a second heat exchange chamber and a third heat exchange chamber are formed in the recycling box. Water in the first heat exchange chamber exchanges heat with high-temperature flue gas in the first heat exchange pipe, the temperature of a water source in the first heat exchange chamber rapidly rises, and then a water source in the second heat exchange chamber and a water source in the third heat exchange chamber exchange heat with the flue gas; by arranging the three heat exchange pipes and the three heat exchange chambers, circulation of a water source is achieved through the conveying pump, under the condition that a heat pump is not added, the waste heat recovery efficiency of smoke can be improved, by arranging the water source stirring mechanism, the water source can make full contact with the heat exchange pipes, and then the heat exchange effect of the heat exchange pipes is improved.

The present invention provides a spiral sleeve heat exchanger, which relates to the technical field of heat exchangers and includes an outer tube, an inner tube, a positioning tube, an arc-shaped side plate, and a heat insulation assembly. The inner tube is located inside the outer tube, and the inner tube and the outer tube form a sleeve heat exchanger structure. One end of the positioning tube penetrates through the outer tube and is fixedly welded to the outer wall of the inner tube, and the positioning tube is fixedly welded to the outer tube. In the present invention, by adopting spiral inner and outer tubes, when the metal temperature difference between the inner and outer coils is large, the inner and outer coils will produce deformations of different sizes. Since there is a large gap between the inner and outer coils, their deformations will not be restricted by each other; and the spiral coil has greater elasticity than a straight tube, which can eliminate most of the temperature difference stress, avoid the use of expansion joints, and thus reduce costs and leakage risks.

Device (1) for heating domestic water by thermal contact with a heating fluid, the device comprising a first chamber (10) and a second chamber (20) fluid-dynamically connected to the first chamber via a connecting opening (13), both the first chamber and the second chamber each having a supply opening (11, 21) and a removal opening (12, 22) for heating fluid, the first chamber being designed to store heating fluid in its interior in layers (14, 15, 16) lying one above the other in a stratification direction (19) according to the temperature of the heating fluid. Specific guidance of the flow of the heating fluid, on the one hand during layering into the first chamber and, on the other hand, during flowing into the second chamber, leads to high efficiency of heat transfer to the domestic water.Furthermore, the invention is directed to a heating system comprising the device, an operating method for the heating system, a single-layer device, and a heat exchanger device. The invention enables, for example, the implementation of various embodiments of the heating system and their operating methods using only a single pump.

The invention relates to the technical field of waste heat recovery, and particularly discloses an efficient waste heat recovery system based on secondary lead smelting and a cascade using method thereof.The efficient waste heat recovery system comprises a smelting furnace, an air preheater, a cyclone dust collector, a box type dust collector, a waste heat boiler and a raw material drying machine which are sequentially connected; a vertical cylinder with the lower end extending out is concentrically fixed to the top of the heat preservation outer shell, a heat exchange rotor is rotationally arranged at the upper end of the vertical cylinder, the interior of the heat exchange rotor is evenly divided into a plurality of sealed fan-shaped spaces, the fan-shaped spaces are filled with phase change heat storage materials, and a plurality of sets of vertical tubes are arranged in each fan-shaped space. A plurality of groups of radial through heat exchange tubes are arranged in each fan-shaped space; according to the waste heat efficient recovery system and the waste heat cascade using method, on the premise that high-temperature flue gas waste heat is efficiently utilized, corrosion of high-temperature strong acid gas to the heat exchange pipes and the heat exchange media can be avoided, and the service life of the air preheater is guaranteed.

The invention provides a radiation refrigeration plate combining a sky radiation refrigeration material and a plate heat exchanger, and relates to the technical field of refrigeration, the radiation refrigeration plate comprises a sky radiation refrigeration material layer, a plate heat exchanger assembly, a fan cover layer and a heat insulation material layer, the sky radiation refrigeration material layer has high reflectivity in a solar spectrum wave band and has high emissivity in an atmospheric window wave band, and the plate heat exchanger assembly has high reflectivity in a heat insulation material layer; and heat can be efficiently radiated to the outer space. The plate heat exchanger assembly comprises an enhanced heat exchange tube and a nanofluid, and the nanofluid is filled in the enhanced heat exchange tube and used for heat transfer and transport capacity and enhancing the heat exchange effect. And the fan cover covers the sky radiation refrigeration material. The heat insulation material layer is laid on the portion, except the top face, of the radiation refrigeration plate so as to reduce heat loss of the system to the surrounding environment, and the refrigeration effect is guaranteed. By means of the structure, working modes in the daytime and at night are achieved, the heat transfer efficiency of the system is greatly improved, energy consumption is reduced, and the efficient radiation refrigeration effect of all-weather continuous operation at the temperature lower than the environment temperature is achieved.

A heat exchanger includes an outer shell enclosing an interior space. An inlet extends through the outer shell and is in fluidic communication with the interior space. An outlet extends through the outer shell and is in fluidic communication with the interior space. At least one phase change element is inside the interior space and includes a core comprising a phase change material.

The invention relates to the technical field of air conditioners, in particular to a liquid separator, a heat exchange device and a heat pump unit, the liquid separator comprises an outer pipe body, an inner pipe body and a branch pipe body, the outer pipe body is arranged on the outer side of the inner pipe body in a sleeving mode, the outer pipe body and the inner pipe body are connected to define a liquid separation cavity, and at least one partition plate is arranged in the outer pipe body; the liquid separation cavity is at least divided into two cavities through a partition plate in the flowing direction of refrigerants in the liquid separation cavity, the partition plate is provided with a flow guide channel, every two adjacent cavities are communicated through the flow guide channel, the branch pipe body is arranged on the outer pipe body, when the liquid separator is applied to a condensation state, the branch pipe body comprises first branch pipes and second branch pipes, each cavity is communicated with at least one first branch pipe, and each second branch pipe is communicated with at least one second branch pipe. The first branch pipe is suitable for inputting refrigerants into the cavities, except the cavity communicated with the outlet of the inner pipe body, the other cavities are all communicated with at least one second branch pipe, and the second branch pipes are suitable for outputting the refrigerants from the cavities. Gas-liquid separation in the condensation process is achieved, the purpose of improving the condensation effect of the heat exchanger is achieved, and the performance of the heat exchanger is exerted to the maximum.

A heat exchanger includes at least two plate bodies stacked with each other and at least one connecting sheet. Each of the at least two plate bodies is provided with a plurality of micro-passages. The at least one connecting sheet is arranged between adjacent plate bodies of the at least two plate bodies. A solder is disposed on each of two opposite sides of the at least one connecting sheet, and the solder is configured to weld and fix the at least one connecting sheet with the adjacent plate bodies of the at least two plate bodies.

The invention relates to the technical field of waste heat recovery equipment, and particularly discloses a flue gas waste heat recovery device for a thermal power plant. An upper smoke chamber, a heat exchange chamber and a lower smoke chamber are arranged in the box body, and a plurality of smoke pipes for communicating the upper smoke chamber with the lower smoke chamber are fixed in the heat exchange chamber; a piston cylinder fixed by the box body is arranged right above the smoke pipe; the upper end of the piston cylinder is connected with a high-pressure air supply pipe, and a piston is arranged in the piston cylinder and connected with a wall scraping head through a push rod. The push rod is provided with a side hole. When the high-pressure gas drives the piston to move downwards, the wall scraping head moves close to the inner wall of the smoke pipe, and ash is scraped away. The flue gas waste heat recovery device for the thermal power plant has a cleaning function and is good in cleaning effect, high in heat exchange efficiency and good in waste heat recovery effect. The flue gas waste heat recovery device for the thermal power plant can be automatically cleaned, parts do not need to be disassembled, and the device is fast, efficient and capable of being operated online. Ash scraped in the cleaning process can be recycled in a centralized mode and is prevented from being mixed into flue gas again, the workload of the flue gas dust treatment link is reduced, and the follow-up environment-friendly treatment cost is saved.

The utility model relates to the technical field of air heat exchange equipment, in particular to an air energy heat exchange device which reduces the flowing speed of liquid, enables the liquid to be in full contact with high-temperature gas, improves the heat conversion effect and utilizes the temperature of the gas to the maximum extent. Comprising a barrel, a heat exchange assembly, an air inlet assembly, a stirring assembly and a fixing assembly, the fixing assembly is installed on the outer wall of the barrel and used for supporting and fixing equipment, the heat exchange assembly is installed in the barrel and comprises a liquid inlet pipe, a water distribution disc, an arc-shaped baffle, a plurality of heat exchange pipes, a liquid collection disc and a liquid outlet pipe, and the air inlet assembly is installed at the lower end of the interior of the barrel; the stirring assembly is installed at the upper end in the barrel, and an air outlet is formed in the top of the barrel.

The invention discloses a galvanized sheet production line waste heat utilization device, and relates to the technical field of galvanized sheet production. The waste heat utilization device for the galvanized sheet production line comprises a heat exchange pipe, a heat conduction coil pipe arranged on the heat exchange pipe in the airflow direction of the heat exchange pipe, a second valve plate arranged in the middle of the heat exchange pipe and first valve plates located on the two sides of the second valve plate, the first valve plates and the second valve plate are arranged in a crossed mode, and the first valve plates and the second valve plate rotate relatively. Flue gas containing heat in the heat exchange pipe is disturbed in a fluctuating mode. The driving assembly is used for driving the first valve plate and the second valve plate which are arranged in a crossed mode to rotate relatively, fluctuating turbulent flow is conducted on galvanized flue gas in the heat exchange pipe, the single flow direction of the galvanized flue gas is changed, the galvanized flue gas in the flowing process is made to be deflected and reversed in order to make full contact with the heat conduction coil pipe for heat exchange, and the waste heat recovery efficiency is improved; and the dynamic rotation of the two groups of valve plates can also play a role in baffle flow slowing, so that the circulation heat exchange time of the galvanized flue gas is prolonged.

The invention discloses a printing and dyeing dryer waste heat recovery system, which relates to the field of waste heat recovery and comprises a dryer main body, one end of the dryer main body is provided with a heat exchanger and a recovery control module, one end of the heat exchanger is provided with a recovery energy storage end, and the heat exchanger is communicated with the recovery energy storage end through a fluid pipeline. The recovery control module is in interactive connection with the heat exchanger and the recovery energy storage end through an electrical medium, the recovery control module comprises a recovery judgment module, a stage planning module, a rehearsal execution module and a correction module, and the stage planning module is used for performing planning contribution degree quantitative evaluation on fluctuation characteristics; and in combination with an abnormal feature prediction model of the rehearsal execution module, intelligent expansion or deletion of the waste heat recovery time period is realized, a traditional fixed time period recovery mode is broken through, the system dynamically adjusts the length of the recovery time period according to real-time working conditions, the waste heat recovery efficiency is improved, and meanwhile, equipment overload or energy waste caused by fluctuation is avoided.

The invention provides a lithium ore roasting waste heat recovery device and a process for extracting beryllium from lithium-containing ore. The waste heat recovery device comprises a box body, an adjusting mechanism and a heat exchange pipe. A first dispersion cover and a second dispersion cover are mounted on the left side and the right side of the box body through bolts, and the adjusting mechanism is located outside the second dispersion cover; the adjusting mechanism comprises a discharge pipe, a mounting cover and an adjusting motor, the discharge pipe is fixedly arranged at the outlet end of the second dispersion cover, and the mounting cover is hermetically mounted at the outer end of the discharge pipe through a bolt. The flow channel of the heat exchange element is designed to be of a reducing structure with a thick inlet and a thin outlet, at the moment, a high-temperature section at the inlet position can fully exchange heat, but the heat of smoke entering a low-temperature section is not higher than that of the high-temperature section, the inner diameter of the outlet section can be reduced, the smoke flow is small at the moment, and therefore most smoke can be gathered in the low-temperature section, and full heat exchange of the low-temperature section can be achieved.

The invention relates to the technical field of heat exchangers, and particularly discloses a titanium tube heat exchanger which comprises a shell, a tube box, a titanium heat tube unit arranged in the shell and communicated with the interior of the tube box, and a flow guide unit arranged in the shell. The adjacent fan-shaped baffle plates in the flow guide unit are distributed in a staggered mode in the axial direction, a spiral flowing channel is formed on the periphery of the titanium heat pipe unit under rotation driving of the rotating frame, cold flow flows along the spiral path when flowing to the cold flow output pipe from the cold flow input pipe, the spiral cold flow channel overlaps circumferential rotation and axial reciprocating translation of the channel, and therefore the heat exchange efficiency of the titanium heat pipe is improved. The contact area and path of the cold flow and the titanium heat pipe unit are continuously and dynamically changed, the cold flow is forced to continuously sweep different surface areas of the titanium heat pipe unit, a temperature boundary layer of the cold flow is effectively broken, the cold flow in different areas in the shell is promoted to be fully mixed and replaced, heat exchange dead angles are effectively reduced, and heat exchange efficiency is improved. And the heat exchange efficiency between hot flow and cold flow is improved.