1246results about "Flush cleaning" patented technology

The invention provides a heat exchanger with an anti-blocking function, which comprises a fixed clamping plate and a movable clamping plate, and a plurality of plate sheets are arranged between the fixed clamping plate and the movable clamping plate. Alternate use of the arc-shaped filter screens is achieved through the rotating design of the second closed barrel, when the filtering effect of a certain filter screen is affected by impurity accumulation, other unblocked filter screens can work in time, it is guaranteed that liquid is continuously and smoothly filtered, the situation that the heat exchange process is interrupted due to blockage of a single filter screen is avoided, and efficient operation of equipment is maintained; the arc-shaped filter screens are backwashed through the spray heads, the four filter screens can be comprehensively cleaned in sequence in cooperation with rotation of the second closed barrel, when deep cleaning is needed, the output shaft of the servo motor rotates clockwise to drive the spray heads to move in a reciprocating mode, more thorough washing is achieved, impurities attached to the filter screens are effectively removed, and the service life of the filter screens is prolonged. The service life of the filter screen is prolonged and the equipment consumable replacement cost is reduced.

The utility model relates to the technical field of humidity regulation, and specifically provides a constant humidity machine, which includes: a humidifying unit, which includes a humidifying part, and the humidifying part can release a first amount of moisture to a target space; a dehumidifying unit, which includes a condenser and an evaporator, and the condenser and the evaporator can remove a second amount of moisture from the target space; a liquid storage container, which can release the first amount of moisture to the humidifying part, and recover at least a part of the second amount of moisture. Through such a structure, it is possible to seek to achieve the humidifying function and the dehumidifying function of the constant humidity machine at the same time by sharing a liquid storage container. For example, the liquid storage container can be a water tank, etc. For example, the target space can be any space with humidity regulation requirements, such as a bedroom, a living room, an office, etc.

The invention relates to the technical field of sludge treatment, in particular to a sludge heat drying treatment system which comprises a drying machine used for drying sludge entering the drying machine and generating mixed gas; the metal sintering filter is used for carrying out dust removal treatment on the sludge dry dust in the mixed gas from the drying machine; the plate heat exchanger is used for carrying out heat exchange condensation treatment on water vapor in the mixed gas subjected to dust removal treatment by the metal sintering filter and discharging condensed wastewater generated by condensation; the gas-liquid separator is used for carrying out gas-liquid separation treatment on non-condensable gas in the mixed gas subjected to heat exchange and condensation treatment by the plate heat exchanger; and the negative pressure fan is connected to the downstream of the gas-liquid separator and used for enabling the mixed gas generated by the drying machine to sequentially flow through the metal sintering filter, the plate heat exchanger and the gas-liquid separator and then be conveyed to an air feeder opening. By using the system, blocking of condensing equipment and water accumulation of an air supply pipeline caused by sludge dry dust which is not completely removed during steam condensation can be effectively avoided.

A heatsink comprising a heat exchange device having a plurality of heat exchange elements each having a surface boundary with respect to a heat transfer fluid, having successive elements or regions having varying size scales. According to one embodiment, an accumulation of dust or particles on a surface of the heatsink is reduced by a removal mechanism. The mechanism can be thermal pyrolysis, vibration, blowing, etc. In the case of vibration, adverse effects on the system to be cooled may be minimized by an active or passive vibration suppression system.

The invention discloses an intelligent control method and system for preventing blockage of an air preheater, and the method comprises the steps: determining the flue gas flow difference data of the front and rear sides of the air preheater, evaluating the blockage condition of the air preheater to obtain a blockage evaluation value, and setting the initial working condition of a blowing device according to the blockage evaluation value; acquiring flue gas temperature data and flue gas flow data of the front side of the air preheater, and determining a flue gas temperature coefficient and a flue gas flow coefficient through analysis; and a regulation and control coefficient is determined based on the flue gas temperature coefficient and the flue gas flow coefficient, and after the initial working condition of the air blowing device is adjusted, the air blowing device is controlled to conduct anti-blocking air blowing on the air preheater. By monitoring the flue gas flow difference data in real time, analyzing the flue gas temperature and flow data and combining an intelligent algorithm and a control strategy, intelligent anti-blocking control over the air preheater can be achieved in time, stable operation of equipment is ensured, the service life of the equipment is prolonged, the maintenance cost is reduced, and the production efficiency is improved.

The invention discloses a heat exchanger and method for rare gas preparation, and relates to the technical field of heat exchangers, the heat exchanger comprises a heat exchange mechanism, the outer surface wall of the heat exchange mechanism is sleeved with a cleaning structure, the input end of the heat exchange mechanism communicates with a feeding mechanism, and an aeration mechanism is inserted into the inner surface wall of the heat exchange mechanism. In the cleaning process, the second air pump conveys outside air to the aeration ball, so that a large number of bubbles are formed in cleaning liquid, dirt is cleaned by means of tiny shock waves and high-speed micro jet flow generated during bubble movement and breakage, and the ultrasonic generator can release sound wave energy; the synergistic effect of bubbles and sound waves greatly improves the cleaning efficiency and effect, enhances the stripping capacity of dirt on the inner wall of the heat exchanger, ensures that rare gas is not polluted in the heat exchange process, maintains the high purity of the rare gas, keeps the inner wall of the heat exchanger smooth, and improves the heat transfer efficiency, so that the cooling or heating speed of the rare gas is increased, and the service life of the heat exchanger is prolonged. The efficiency of the whole preparation process is improved.

The invention belongs to the technical field of closed cooling towers, and discloses a countercurrent closed cooling tower and a cooling method.The countercurrent closed cooling tower comprises a tower body, a draught fan is fixedly connected to the top of the tower body, an air inlet is formed in the side wall of the bottom of the tower body, a water collecting tank is formed in the bottom of the tower body, and a pair of coil pipes is fixedly connected to the middle of the tower body; through cooperation of structures such as an annular shell, an annular spraying pipe and a concave panel, the possibility that scale is generated by the coil pipe is reduced, the heat exchange effect can be improved, during heat exchange, water in a collecting groove of the annular spraying pipe moving in a reciprocating mode is pumped and pressurized, the surface of the coil pipe is scoured in an annular mode, and the scale forming risk is reduced; and meanwhile, the sliding columns continuously extrude the wave-shaped grooves, so that the whole annular shell rotates in a reciprocating mode, close-distance washing can be more uniform, and therefore the heat exchange effect and durability of the coil pipe are efficiently improved.

The invention discloses a water-cooling air suspension variable-frequency centrifugal unit capable of overcoming the defect of uneven falling films, and relates to the field of variable-frequency centrifugal units. The water-cooling air suspension variable-frequency centrifugal unit comprises a rack, a condenser, an evaporator and an air flotation compressor; a condenser and an evaporator are connected to the inner wall of the rack in a penetrating mode, one side of the evaporator is connected with an air flotation compressor through a pipeline, the air flotation compressor is connected to one side of the rack through bolts, the front portion of the evaporator and the front portion of the air flotation compressor are connected with a flash tank through pipelines, and a heat exchange mechanism is connected to the inner wall of the evaporator. The inner wall of the condenser is connected with a descaling mechanism. According to the water-cooled air suspension variable-frequency centrifugal unit, to-be-cooled liquid is added above the evaporator and flows into the heat exchange pipe, a falling film is formed on the inner wall of the heat exchange pipe, the air flotation compressor drives the pneumatic motor to operate, the air spraying pipe and the heat exchange pipe are driven to rotate, and refrigerant gas is evenly sprayed to the outer side of the heat exchange pipe to form the falling film; and therefore, the water-cooling air suspension variable-frequency centrifugal unit can uniformly fall a film.

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 discloses an in-service plate heat exchanger dirt cleaning judgment method and device based on operation data, and the method comprises the steps: obtaining the operation data, collected in a cleaning period and a current operation season, of a plate heat exchanger, and removing abnormal data to form a cleaning period effective data set and a current operation season effective data set; calculating the heat exchange amount and the logarithmic average temperature difference based on the effective data set, and executing steady-state working condition set screening to obtain steady-state working condition sets of the cleaning period and the current operation season; heat exchange thermal resistance is calculated based on the steady-state working condition set, linear fitting is carried out on the heat exchange thermal resistance and the sum of minus 0.8 power of flow of the two sides of the heat exchanger to obtain heat conduction thermal resistance, and the heat conduction thermal resistance in the cleaning period and the heat conduction thermal resistance in the current operation period are compared to calculate dirt thermal resistance in the current operation period; if the ratio of the dirt heat resistance in the current operation season to the heat conduction heat resistance in the cleaning period exceeds a preset threshold value, it is judged that dirt cleaning needs to be conducted on the plate heat exchanger. A method is provided for improving the efficiency of the plate heat exchanger and reducing carbon emission for heat exchange systems in the fields of heat supply, petrochemical engineering and the like.

The invention relates to the technical field of heat exchange equipment, in particular to an intelligent self-adaptive multi-working-condition efficient heat exchange finned tube type direct water-cooling evaporative heat exchanger which comprises a shell, a finned tube is installed in the shell, a flow meter is installed at the liquid inlet end of the finned tube, and the flow meter is electrically connected with a controller. The liquid inlet end of the shell communicates with a water delivery pump, a spraying assembly and a cleaning assembly through a four-way pipe, the liquid outlet end of the shell communicates with a drainage pump, the liquid outlet end of the drainage pump communicates with the liquid inlet end of the water delivery pump, and the controller is used for controlling the drainage pump, the water delivery pump, the spraying assembly and the cleaning assembly to work. The controller is used for controlling the drainage pump, the water delivery pump, the spraying assembly and the cleaning assembly, the drainage pump, the water delivery pump, the spraying assembly and the cleaning assembly can work separately in an intelligent and self-adaptive mode under different working conditions, the heat exchange efficiency can be effectively and dynamically adjusted in real time when loads are changed or the environment temperature fluctuates, and the heat exchange efficiency is improved. The energy consumption is reduced.

The invention provides a pipeline cleaning system which comprises a support unit, a cleaning agent spraying unit, a dry ice spraying unit and a high-pressure gas unit, a plurality of moving units are arranged on the support unit, and the moving units are suitable for moving in a pipeline; the cleaning agent spraying unit is arranged on the support unit and comprises a first feeding assembly and a plurality of first nozzles, and the first feeding assembly is connected with the first nozzles and is suitable for conveying a cleaning agent to the first nozzles; the dry ice spraying unit is arranged on the support unit and comprises a second feeding assembly and a plurality of second nozzles, and the second feeding assembly is connected with the second nozzles and suitable for conveying dry ice to the second nozzles; the high-pressure gas unit is arranged on the support unit and communicates with the cleaning agent spraying unit and the dry ice spraying unit so as to be suitable for conveying high-pressure gas. The cleaning method combining cleaning agent cleaning and dry ice cleaning is adopted, rapid stripping and deep removal of pollutants on the inner wall of the pipeline can be achieved, and the safety of the pipeline in the cleaning process is improved while the cleaning effect is improved.

The invention relates to the technical field of plate heat exchangers, and provides a plate heat exchanger with a self-cleaning function, which comprises a bottom plate, a device frame fixedly mounted on the bottom plate, a heat exchange structure mounted on the device frame and used for heat exchange, a heat exchange pipeline set, a liquid storage tank, a cleaning assembly and a recovery assembly, the heat exchange pipeline set is installed on the device frame and comprises a cold fluid conveying assembly used for conveying cold fluid and a hot fluid conveying assembly used for conveying hot fluid, the liquid storage tank is fixedly installed on the bottom plate, cleaning fluid is stored in the liquid storage tank, and cleaning assemblies are installed on the cold fluid conveying assembly and the hot fluid conveying assembly correspondingly. The cold fluid conveying assembly and the hot fluid conveying assembly are each provided with a recovery assembly, and the technical problems that in the prior art, when the plate heat exchanger is cleaned, mechanical damage is likely to be caused to metal plates, then the service life of equipment is affected, and the operation and maintenance cost is increased are solved.

The utility model provides a coal gas primary cooler with a blockage clearing function, and relates to the technical field of coal gas primary coolers, the coal gas primary cooler comprises a coal gas primary cooler body and a washing oil circulating reflux tank used for storing washing oil, a first pipeline is arranged between the coal gas primary cooler body and the liquid outlet end of the washing oil circulating reflux tank, and a second pipeline is arranged between the coal gas primary cooler body and the washing oil circulating reflux tank; a second pipeline is arranged between the gas primary cooler body and the liquid inlet end of the washing oil circulating reflux tank, a cooling water inlet and a cooling water outlet are formed in the gas primary cooler body, and the cooling water outlet can be connected with an external steam pipeline so as to introduce steam to heat washing oil in the gas primary cooler body; according to the coal gas primary cooler, washing oil is matched with steam to dissolve and unblock a solid mixture, the dissolving and separating effect is good, the resistance of the coal gas primary cooler body can be recovered to the normal condition about one hour, and the unblocking efficiency is high.

The invention discloses an all-welded heat exchanger convenient to maintain and a maintenance method thereof, and belongs to the technical field of heat exchangers. An all-welded heat exchanger convenient to maintain comprises an installation box used for refrigerant circulation and further comprises a heat exchange pipe fixedly installed in the installation box, a top pipe opening of the heat exchange pipe extends to the position above the installation box, and a bottom pipe opening of the heat exchange pipe extends to the position below the installation box. The two sides of the mounting box are fixedly connected with a liquid inlet pipe and a liquid outlet pipe correspondingly, and the inner diameter of the heat exchange pipe is not smaller than 100 MM; the inner diameter of the heat exchange pipe is set to be not smaller than 100 MM, compared with a traditional heat exchanger pipeline, the diameter of the pipeline is increased, the cleaning and maintaining difficulty is reduced, the increased inner diameter of the pipeline is matched with the conical ring, the pressure of airflow passing through the heat exchange pipe is increased, meanwhile, the contact area of the airflow and the heat exchange pipeline is increased, and the heat exchange efficiency is improved. Therefore, the heat exchange effect of the airflow and the heat exchange medium is improved.

The invention relates to a waste heat recovery device, in particular to a waste heat recovery device for a high-temperature reaction furnace. Comprising a tank body, an air outlet pipe, an air inlet pipe, a drainage pipe, a rotating pipe, a fixed pipe, a water inlet pipe, a water storage cavity, a rotating body, a heat exchange pipe assembly, a cleaning mechanism and a collecting assembly, the right side of the tank body is sequentially connected with the air outlet pipe and the air inlet pipe from bottom to top, the fixed pipe penetrates through the middle of the top end of the tank body, and the bottom end of the fixed pipe is rotationally connected with the rotating pipe; a water inlet pipe is connected to the front side of the tank body; a water storage cavity is connected to the lower side of the interior of the tank body; a rotating body is rotationally connected to the water storage cavity; a heat exchange pipe assembly is connected to the rotating body; by arranging the rotatable heat exchange pipe assembly, automatic rotation of the heat exchange pipe assembly is achieved, and the overall heat exchange efficiency is improved.

The invention relates to a cleaning device (10) for cleaning a coolant of a motor vehicle (12) having a circuit through which the coolant flows, with a line (14) through which the coolant flows, which has a first connection element (18) by means of which the line (14) of the cleaning device (10), which is designed separately from the motor vehicle (12) and as an additional part for the motor vehicle (12), can be connected to a first point (S1) of the circuit in a non-destructive manner and is thereby fluidically connected to the circuit, and a second connection element (20) by means of which the line (14) can be connected to a second point (S2) of the circuit arranged downstream of the first point (S1) in a non-destructive manner and is thereby fluidically connected to the circuit.At least one filter element (22) is also provided, arranged between the connection elements (18, 20), by means of which particles contained in the coolant flowing through the line (14) can be filtered out of the coolant to clean the coolant.

The invention belongs to the technical field of coke powder cooling, and discloses dry quenching coke powder cooling equipment which comprises a rack, a barrel is fixedly connected to the top of the rack, a plurality of cooling pipe sets are arranged in the barrel, each cooling pipe set comprises an inner heat exchange pipe and an outer heat exchange pipe, the inner heat exchange pipe is located in the outer heat exchange pipe, and the inner heat exchange pipe and the outer heat exchange pipe are coaxially arranged; a blanking cavity is reserved between the inner heat exchange tube and the outer heat exchange tube; the outer portion of the inner heat exchange pipe is rotationally connected with a rotating disc, the top of the rotating disc is fixedly connected with a supporting rod, the outer side of the supporting rod is rotationally connected with a first gear through a connecting frame, the first gear is meshed with a first gear ring, a stirring pipe is arranged on the outer side of the supporting rod, and an eccentric block is fixedly connected to the side wall of the stirring pipe. A sliding groove for the stirring pipe to slide is formed in the first gear, and damping springs are fixedly connected between the two sides of the stirring pipe and the side wall of the sliding groove; and a driving mechanism for driving the rotating disc to rotate is arranged on the rack. The heat exchanger has the effect of improving the heat exchange efficiency.

The utility model relates to a condensing device of a graphitization furnace, and particularly to the technical field of graphitization furnace condensing equipment. The utility model includes a graphite furnace, a graphite furnace vacuum tube, a condensing tube, a ceramic filter, a water inlet pipe, an air inlet pipe, an air outlet pipe, an air pipe, and a sewage pipe. When the condensing tube needs to be cleaned, water or a cleaning liquid is passed into the condensing tube through the water inlet pipe to flush the inside of the condensing tube. The sewage after flushing is discharged from the sewage pipe. After cleaning, hot air is passed into the condensing tube through the air pipe to dry the condensing tube. The dried gas is discharged from the exhaust pipe, which is convenient for cleaning and drying the condensing tube, and the condensing tube can be cleaned online.

The invention discloses a marine energy-saving variable air volume indirect type air conditioner, and relates to the technical field of air conditioning systems, the marine energy-saving variable air volume indirect type air conditioner comprises an air conditioner assembly, the air conditioner assembly comprises an air conditioner shell, one side of the air conditioner shell is fixedly communicated with a fresh air pipeline, and an air return opening is formed in the position, close to one side, of the top of the air conditioner shell. According to the marine energy-saving variable-air-volume indirect type air conditioner, by starting a multi-stage electric push rod, a piston plate is driven to extrude a citric acid solution forwards into a return air inlet pipeline and a fresh air inlet pipeline, in the air inlet process, the citric acid solution can enter the heat exchanger body in air flow, descaling is conducted on the pipeline in the heat exchanger body, and the heat exchange efficiency is improved. Citric acid has good chelation ability and can generate chelation reaction with ions such as calcium and magnesium in incrustation to form a water-soluble complex, so that the purpose of removing the incrustation is achieved, and the citric acid has low corrosivity to stainless steel due to weak acidity.

The utility model provides a self-cleaning heat exchanger which comprises a heat exchange cavity, one end of the heat exchange cavity is fixedly connected with a first end socket cavity, the other end of the heat exchange cavity is fixedly connected with a second end socket cavity, the heat exchange cavity comprises a heat exchange cavity body, tube plates are fixedly installed on the inner sides of the two ends of the heat exchange cavity body, and a plurality of heat exchange tubes are fixedly installed between the two tube plates. A cleaning mechanism is arranged in the first sealing head cavity and comprises a first cavity body, a sliding connecting seat is arranged on one side of the first cavity body, a sealing sliding groove is formed in the middle of the sliding connecting seat, the cleaning mechanism comprises a mounting plate, a plurality of high-pressure spray heads are arranged on one side of the mounting plate, one end of the mounting plate communicates with a connecting pipe, and a sealing sliding block is fixedly mounted on the outer side of the connecting pipe; according to the heat exchange tube cleaning device, the interior of the heat exchange tube can be effectively cleaned, and the heat exchange tube cleaning device has high practical value.

The utility model discloses a deep recovery device for waste heat of medium and low temperature flue gas, which relates to the technical field of flue gas waste heat recovery, and comprises a first heat exchange component, a second heat exchange component, a third heat exchange component, a fourth heat exchange component and a fourth heat exchange component, the partition plate divides the interior of the first shell into a smoke cavity and a water cavity which are independent. A second heat exchange assembly; the shell at least comprises a second shell; the first heat exchange assembly and the second heat exchange assembly are used in cooperation, flue gas is subjected to two-stage heat exchange, high-temperature flue gas is subjected to first-stage heat exchange through the stainless steel heat exchange piece, heat is transmitted into the water cavity, heat energy recovery is achieved, low-temperature flue gas is subjected to second-stage heat exchange through the fluoroplastic thin pipe heat exchange piece, and heat energy recovery is achieved. And the low-temperature flue gas after one-time heat exchange can be conveniently reused, the heat exchange efficiency is further improved, and the flue gas waste heat utilization rate can be effectively increased through the arrangement.

The HVAC exterior cleaning pipework is a system attachable to a HVAC unit, such that the PVC pipework can clean the exterior of the unit by means of strategically placed sprayer valves. The pipework is extendable, such that it can expand or retract to meet the exact dimensions of the specific HVAC unit whereon it should be attached. The pipework may be connected directly to a hose with sufficiently pressurized water, or the integrated pump may assist in the flow of water. The spray heads and the pump have removable components whereby they can be cleaned separately when needed.

The device comprises a connecting box body, a heat exchange plate spacing adjustable structure and a swing flushing structure are arranged in the box body, the end face of the box body is connected with a water pump, the side wall of the box body is connected with a controller, a water outlet pipe is arranged at the bottom of the box body, and the water pump and two motors are electrically connected with the controller. The heat exchange plate spacing adjustable structure drives a lead screw, a sliding block, a pull rod and the like to perform transmission through a driving motor, so that the movable heat exchange plates are clamped or uniformly separated; the swing flushing structure drives a gear to transmit through a rotating motor, so that a cleaning nozzle swings back and forth between heat exchange plates and cooperates with a water pump to spray water for flushing. The method comprises the steps that the driving motor is controlled to separate the heat exchange plates, the rotating motor is started to drive the nozzles to swing, the water pump is started to wash the plugs, and finally the driving motor clamps the heat exchange plates for sealing. Spacing adjustment and automatic cleaning are achieved without disassembly, the problems that an existing device is tedious in operation and wastes time and labor are solved, the heat exchange efficiency and use convenience are improved, waste heat is effectively recycled, and energy waste is reduced.

The invention discloses an air cooler device based on dual-mode finned tubes, and relates to the technical field of heat exchange, the air cooler device comprises an air cooling box, horizontal finned tubes and a circulating fan, gathering hoppers are arranged on the two side faces of the air cooling box, and the circulating fan is fixedly arranged at one end of one gathering hopper. The circulating fan is arranged on the side face of the air cooler, the spraying assembly is arranged on the top of the air cooler, so that the whole air cooler has a spraying mode and an air cooling mode at the same time, the circulating fan is arranged on the side face of the air cooler, the spraying assembly is arranged on the top of the air cooler, and the air cooler has the air cooling mode and the spraying mode at the same time; cooling modes can be intelligently switched according to different working conditions, air cooling is adopted under conventional conditions to reduce energy consumption, cooling is accelerated through spraying under high-temperature or high-load working conditions, and cooling efficiency is improved; and meanwhile, spraying can assist in cleaning the surfaces of the fins, dust accumulation is reduced, the service life of equipment is prolonged, and the energy-saving performance, adaptability and reliability of the air cooler are integrally improved.

The invention relates to a dual-mode air preheater flushing system which comprises an air preheater, the air preheater comprises a shell and a heat transfer element, the heat transfer element is rotationally arranged in the shell, and the dual-mode air preheater flushing system further comprises a state detection module, a flushing structure and an ash outlet; the flushing structure comprises an annular rail, a straight guide rail and a flushing pipe with a high-pressure bundling nozzle, the annular rail is arranged around the bottom surface of the heat transfer element, the flushing pipe realizes radial movement through a linear driving mechanism arranged on the straight guide rail, and the bottom of the straight guide rail is in sliding connection with the annular rail; the dual-mode air preheater flushing system integrates an operation flushing mode and a shutdown flushing mode. The state detection module switches flushing modes by monitoring the state of a mandrel of a heat transfer element, an ash outlet is formed in the bottom of the shell and provided with an ash discharging valve capable of being opened and closed, and coordination of dynamic flushing in operation and precise positioning deep flushing after shutdown can be achieved.

The utility model discloses an automatic cleaning power device for a heat exchanger, and relates to the field of heat exchanger cleaning devices. The cleaning modes of heat exchanger pipelines are mainly chemical cleaning and mechanical cleaning, most of the heat exchanger pipelines need to be shut down for cleaning, rotating screws are used for cleaning, and hard dirt cannot be removed through plastic screws. The cleaning device comprises a rotational flow rack, a shaft cap and a cleaning main shaft, the rotational flow rack comprises a central long shaft sleeve and supporting pieces, the lower end of each supporting piece is provided with a flow guide spiral piece, fluid penetrates through the space between the supporting pieces and then is guided through the flow guide spiral pieces, and the lower end of the cleaning main shaft is provided with a connecting port used for being connected with a cleaning spiral. On-line long-term rapid circumferential rotation and axial vibration of the cleaning spiral in the heat exchange tube are realized through the device by utilizing the flow velocity of the tube pass water body of the evaporator, the laminar flow of the water in the tube is changed into a turbulent flow state, the formation mechanism of incrustation scale is destroyed, scaling is prevented, and yield increase and energy conservation are facilitated.

The utility model discloses cleaning and filtering integrated equipment for a plate-fin radiator, and relates to the related technical field of radiator production. The device comprises a bottom support, water filters, a mounting rack, a water suction pump and a cleaning water tank, the mounting rack is fixed on one side of the bottom support, a water tank is fixed at the edge of one side, close to the mounting rack, of the top of the bottom support, three water filters are fixed at the top of the bottom support outside the water tank, a water return pipe is fixed at the upper part in the mounting rack, and a water conveying pipe is fixed on the mounting rack; a water suction pump is fixed to the corner of the side, away from the water tank, of the top of the bottom support. Through the arrangement of the bottom support, the water filter, the mounting frame, the water suction pump and the cleaning water tank, the cleaning device solves the problems that after the plate-fin radiator is cleaned for multiple rounds, water filtered by the filtering assembly in the cleaning device is low in cleanliness; and during cleaning, water is easily and directly leaked to the ground outside the equipment, and water remained in the filter needs to be dumped and received by an additional water receiving structure, so that the operation is inconvenient.

Provided in the present invention are a system and method for inhibiting operational corrosion of a condenser. The system comprises a chemical dispensing system. The chemical dispensing system comprises a chemical stock solution tank used for containing a hydrogen peroxide stock solution, a desalted water tank, a chemical dispensing tank in communication with the desalted water tank, and a chemical sample intake system, wherein the upper surface of the chemical dispensing tank is provided with a chemical inlet, and the chemical dispensing tank is provided with a chemical concentration measurement instrument; a chemical pool in communication with the chemical stock solution tank, a cleaning pool in communication with the desalted water tank, and a waste water pool are provided on the upper surface of the chemical dispensing tank; the chemical sample intake system comprises a chemical sample intake device; and the chemical concentration measurement instrument is electrically connected to both the chemical sample intake system and a second control valve for desalted water. In the system for inhibiting operational corrosion of a condenser provided in the present invention, using the chemical sample intake device to achieve micro-dose chemical intake improves the control precision of the amount of a chemical sample and the control precision of chemical concentration; and the chemical sample intake device performs cleaning and chemical rinsing before each instance of chemical acquisition, thereby ensuring the concentration of a chemical conveyed into the chemical dispensing tank, and preventing the introduction of other impurities into the chemical dispensing tank.

The invention discloses a full-plane condenser online cleaning robot device suitable for a seawater cooling unit. The full-plane condenser online cleaning robot device comprises a main transmission pair, an auxiliary transmission pair, an auxiliary transmission driving assembly, a water spraying pipe and a water inlet pipe. The main transmission pair is installed on the water chamber shell in the horizontal or vertical direction. The auxiliary transmission pair can be freely and movably arranged on the main transmission pair through the auxiliary transmission driving assembly, and the moving direction is perpendicular to the mounting direction of the main transmission pair; the water inlet pipe is fixed on the water chamber shell and is communicated with the water spraying pipe; the water spraying pipe is arranged on the auxiliary transmission pair and moves in the horizontal direction and the vertical direction in the cleaning plane based on common transmission of the main transmission pair and the auxiliary transmission pair. The length direction of the water spraying pipe is consistent with the moving direction of the auxiliary transmission pair; a plurality of nozzles are arranged on the water spraying pipe in the length direction and arranged in a single row. By adopting the device, the cleaning water flow and the cleaning range of a single nozzle can be improved, so that the cleaning capacity and the cleaning coverage rate are improved.