1904results about "Flush cleaning" patented technology

The invention discloses an air cooling unit automatic spraying control system and method capable of reducing backpressure in a segmented mode. The system comprises a data acquisition module, a dirt recognition module, a control module and a spraying module. The data acquisition module is used for acquiring real-time meteorological data and unit operation data, and the unit operation data comprises real-time load data and cooling fin temperature data; the dirt identification module is used for collecting image data of the radiating fins and carrying out dirt identification and positioning on the image data to obtain dirt information; the control module is used for generating a segmented spraying scheme based on the real-time meteorological data, the unit operation data and the dirt information; and the spraying module is used for spraying, cleaning and cooling the cooling fins based on the segmented spraying scheme so as to reduce the back pressure of the air cooling unit. Through regular automatic spraying, cleaning and cooling, the system can effectively reduce the back pressure of the air cooling unit, reduce the energy consumption, improve the operation efficiency of the unit, reduce the requirement for manual cleaning and reduce the maintenance cost.

The invention relates to the technical field of power plant plate heat exchanger cleaning, and provides a plate heat exchanger cleaning device which comprises a water inlet pipeline (1) installed at one end of a plate heat exchanger; the water outlet pipeline (2) is mounted at the other end of the plate heat exchanger; the backwashing structure (3) is connected with the water outlet pipeline (2), pulse type washing water flow is injected into the water outlet pipeline (2), and the pulse type washing water flow is discharged through the water inlet pipeline (1) after washing plate sheets of the plate heat exchanger through the water outlet pipeline (2). Impulse type flushing water flow can be injected into the water outlet pipeline through the backwashing structure, and the flushing water flow reversely flushes the plate sheets of the plate heat exchanger in the direction from the water outlet pipeline to the water inlet pipeline in the pressure state and flushes the plate sheets of the plate heat exchanger in the pressure pulse state, so that the plate sheets of the plate heat exchanger can be washed clean; impurities between the plate sheets of the plate heat exchanger can be flushed away and are not left.

The utility model relates to the technical field of heat supply, and provides a heat exchange device for a heat supply system. The heat exchange tube group is arranged in the shell; the turbulent flow assembly is rotationally arranged in the shell and located on the outer side of the heat exchange tube set; and the scraping plate is arranged on the heat exchange tube set in a sliding mode, the scraping plate is in transmission connection with the turbulent flow assembly, and when the turbulent flow assembly rotates along the inner wall of the shell, the scraping plate moves along the outer wall of the heat exchange tube set. By means of the technical scheme, the problems that in the prior art, in order to guarantee normal work of a heat exchange device, the heat exchange device needs to be completely disassembled, impurities and scale in a pipeline of the heat exchange device need to be cleaned up, the cleaning steps are tedious, and manpower and material resources are consumed are solved.

The invention provides a tubular heat exchanger blockage online diagnosis method and a tubular heat exchanger. The tubular heat exchanger blockage online diagnosis method comprises the following steps: constructing a C factor based on a resistance coefficient and a heat transfer coefficient of the tubular heat exchanger; and performing online diagnosis on the blockage degree of the tubular heat exchanger by detecting the change trend of the C factor. According to the technical scheme, the C factor is constructed based on the resistance coefficient and the heat transfer coefficient of the tubular heat exchanger; performing online diagnosis on the blockage degree of the tubular heat exchanger by detecting the change trend of the C factor; by constructing the C factor reflecting the blockage degree of the heat exchanger, a diagnosis basis is provided for whether the tubular heat exchanger is blocked or not.

The shell-and-tube heat exchanger comprises a shell-and-tube heat exchanger body, the shell-and-tube heat exchanger body comprises a shell, a heat transfer tube bundle, two tube plates and a plurality of baffle plates, the two ends of the heat transfer tube bundle are installed in the shell through the two tube plates, and the baffle plates are installed in the shell through the two tube plates. The baffle plates are installed between the two tube plates at intervals in the shell pass direction of the shell, the shell is provided with a shell pass fluid inlet, a shell pass fluid outlet, a tube pass fluid inlet and a tube pass fluid outlet, the shell-and-tube heat exchanger body is further provided with a drain outlet and a pressure pulse cleaning system, and the pressure pulse cleaning system at least comprises a pulse nozzle and a nested tube. The ultrasonic cleaning and pressure pulse cleaning method is used for conducting online cleaning and full-range cleaning on the heat exchanger tube bundle space, cleaning dead angles do not exist, the cleaning efficiency is greatly improved, meanwhile, the service life of the shell-and-tube heat exchanger is effectively prolonged, the heat exchange efficiency is improved, and the labor cost is reduced.

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.

The invention relates to the technical field of heat exchangers, in particular to a plate heat exchanger cleaning system, a plate heat exchanger and a cleaning method. The fluid monitoring devices are installed at an inlet and an outlet of the plate heat exchanger respectively, connected with the control device and used for monitoring fluid data of the inlet and the outlet of the plate heat exchanger and transmitting the data to the control device. The high-pressure cleaning device is arranged between plate channels of the plate heat exchanger, is connected with the control device and is used for acquiring an instruction of the control device and cleaning the plate channels of the plate heat exchanger; the control device is used for receiving the fluid data of the fluid monitoring device and generating a cleaning instruction to the high-pressure cleaning device. Real-time monitoring and a response mechanism are combined, the fluid monitoring device, the high-pressure cleaning device and the control device are combined for control, the self-cleaning function of the plate heat exchanger is achieved, and the problems that an existing plate heat exchanger is difficult to clean and low in efficiency are solved.

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 provides an oil slurry heat exchanger scaling early warning method, device and equipment, a medium and a descaling system, and belongs to the field of heat exchanger scaling prediction.The early warning method comprises the steps that operation parameters of an oil slurry heat exchanger are obtained; determining an actual total heat transfer coefficient and actual heat exchange efficiency based on the operation parameters of the slurry oil heat exchanger; based on the actual total heat transfer coefficient and the actual heat exchange efficiency, a scaling early warning index is determined; and generating scaling early warning information based on a comparison result of the scaling early warning index and the scaling early warning threshold value. The early warning device comprises a data acquisition unit, a data processing unit, an early warning index determination unit and an early warning information generation unit; the descaling system comprises a cleaning device, a control device and early warning equipment. Through the method provided by the invention, a more accurate early warning scaling condition can be obtained, and the operation reliability of the oil slurry heat exchanger is improved.

The invention discloses a full-direct-current variable-frequency air source heat pump, and relates to the technical field of air source heat pumps, by using a dust cleaning assembly, the full-direct-current variable-frequency air source heat pump comprises a heat pump main body and an evaporator, and the dust cleaning assembly used for cleaning dust attached to the evaporator is arranged in the heat pump main body; a protection recycling assembly used for absorbing leaked refrigerants in a sealed mode is arranged in the heat pump body, a dust cleaning assembly is used, a bidirectional motor rotates to make a sliding block reciprocate left and right, an automatic pressure regulating pump pumps gas in the heat pump body and conveys the gas into a multi-layer telescopic pipe, and the gas is sprayed to an evaporator through a gas spraying head; compared with a traditional method that the evaporator is cleaned through a brush, the device automatically blows off the dust on the surface of the evaporator through air jet of the air jet heads reciprocating left and right, and the dust on the outer side of the whole evaporator is removed through the two air jet pipes. Airflow blows dust, so that damage to fins on the surface of the evaporator by cleaning tools such as brushes and rags is avoided.

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 embodiment of the invention provides a plate heat exchanger, and relates to the technical field of heat exchanger equipment. The plate heat exchanger comprises a mounting groove plate, the top of the mounting groove plate is fixedly connected with a fixed supporting frame, the interior of the mounting groove plate is slidably connected with a convex sliding block, and the top of the convex sliding block is fixedly connected with a heat exchanger body. The cross-shaped rotating plate drives the cleaning shaft rod to move with the rotating rod as the axis, due to the fact that the gear is meshed with the fixed annular toothed plate, the cleaning shaft rod can rotate while rotating along with the cross-shaped rotating plate, due to the rotation motion, the cleaning brush on the cleaning shaft rod can clean a heat exchanger channel in all directions, it is guaranteed that each corner can be effectively cleaned, and the cleaning effect is good. The scale is helped to fall off from the channel wall, and the fallen scale is discharged out of the heat exchanger along with flowing of fluid.

The fin cleaning device of the air conditioner condenser comprises a supporting frame, bearing seats are arranged on the two sides of the supporting frame, brush wheels are arranged on the inner sides of the bearing seats, a driving device is arranged at the end, away from the brush wheels, of the bearing seat on the right side, and first adjusting pieces are arranged on the two sides of the supporting frame. And the inner side of the first adjusting piece is rotationally connected with the bearing seat, moving assemblies are arranged on the two sides of the back of the supporting piece, a fixing piece is arranged on the front surface of the supporting frame, and a water spraying assembly is arranged in the fixing piece. Multiple water spraying modes are adopted, the water spraying assembly comprises a high-pressure spray head and an atomization spray head, different water spraying modes can be selected for cleaning, the device is suitable for different cleaning scenes, the cleaning effect is improved, meanwhile, a large amount of dust can be prevented from being generated when the fins are cleaned, and connection is convenient; and stable and reliable water source supply during cleaning is ensured.

The invention discloses a tail gas purification device for smelting of a closed industrial silicon submerged arc furnace, and relates to the technical field of silicon iron smelting. The device comprises a purification tank, a feeding assembly is arranged on the lower portion in the purification tank, a heat exchange assembly is arranged at the center position in the purification tank, and a drying assembly is further arranged at the top of the purification tank. The U-shaped frame and the feeding pipe are driven by the driving rod to rotate, tail gas in the submerged arc furnace is evenly conveyed into the purification tank through the rotating feeding pipe, the problem that in the prior art, even feeding is not convenient is solved, the U-shaped frame drives the washing pipe to rotate in a reciprocating mode, and the tail gas purification device is convenient to use. A filter screen and a coiled pipe in the heat exchange box are washed and cleaned through a washing pipe and a high-pressure spray head, so that the problem that self-cleaning of a heat exchange structure is inconvenient in the prior art is solved, and meanwhile exhaust gas of the purification tank is dried through a folded plate and a water absorption filler in the drying assembly; the problem that in the prior art, treated tail gas is inconvenient to dry is solved.

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 efficient evaporative condenser which comprises a processing box, a sealing cover plate arranged in the processing box, an air outlet pipe, a filter screen arranged on the inner wall of the air outlet pipe, a transmission shaft, a driving motor arranged at the bottom of the transmission shaft and a belt arranged on the side wall of the transmission shaft. The fan blades are arranged on the side wall of the rotating rod. The invention relates to the technical field of evaporative condensers. When the evaporation condensation mechanism operates, scale on the side wall of a second condensation pipe can be rubbed into powder through cooperation of a first electric sliding rail, an annular sliding rail, a rotating ring, a trigger switch, an electric push rod and a friction disc, and the situation that too much scale is attached to the side wall of the second condensation pipe, and consequently the working efficiency is affected is avoided. And meanwhile, through cooperation of a driving motor, a transmission shaft, a belt, a rotating rod, a water spraying disc and an atomizing nozzle, water mist can be sprayed to the friction disc to lubricate the side wall of the second condensation pipe when the friction disc cleans the second condensation pipe, and the friction disc is prevented from abrading the side wall of the second condensation pipe.

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 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 utility model relates to a plate heat exchanger cleaning device which comprises a dosing barrel, a chemical cleaning pump and a stainless steel security filter, a liquid medicine outlet is formed in the bottom end of the right side of the dosing barrel, and the liquid medicine outlet is connected with the liquid inlet end of the chemical cleaning pump through a UPVC pipe. The liquid outlet end of the chemical cleaning pump is connected with a filter inlet formed in the bottom end of the left side of the stainless steel security filter through a seamless steel pipe; a filter outlet is formed in the middle of the left side of the stainless steel security filter, the filter outlet is connected with a heat exchanger inlet flange of the plate heat exchanger through a stainless steel metal hose, and a heat exchanger outlet of the plate heat exchanger is connected with a cleaning liquid reflux inlet formed in the top end of the dosing barrel through a stainless steel metal hose. The problem of scale deposition of the plate heat exchanger is solved in a chemical cleaning mode, the situation that fins are physically cleaned one by one is changed, the shutdown maintenance time is shortened, and the equipment operation rate is increased.

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 a scale inhibition electromagnetic device, a control method thereof and heat exchange equipment, and relates to the technical field of pipeline descaling. The scale inhibition electromagnetic device comprises: a water tank having a water inlet and a water outlet; the parts, located on the inner side and the outer side of the pipe body, in the water tank are communicated, a coil is arranged on the pipe body and connected to a power source in series to form a scale inhibition circuit, and a switch for controlling the scale inhibition circuit to be on and off is arranged on the scale inhibition circuit. According to the scale inhibition electromagnetic device, the coil on the pipe body is immersed in water in the water tank, a magnetic field is generated after the coil is conducted, water solutions in all positions in the water tank are subjected to the action of an electromagnetic field, a variable-frequency resonance field is generated, and scale removal and inhibition are achieved; as the magnetic fields can be formed on the inner side and the outer side of the pipe body connected with the coil, the magnetic fields on the inner side and the outer side of the pipe body can be applied to scale inhibition operation, the inner magnetic field and the outer magnetic field of the coil are utilized to the maximum extent, full application of the magnetic fields can be guaranteed, scale inhibition space can be enlarged, and scale inhibition efficiency is improved.

The automatic cleaning and cooling device is arranged in a fan blade area of an indirect cooling tower and comprises a bottom plate and a top plate, the bottom plate and the top plate are arranged in the lower end space and the upper end space of the fan blade area correspondingly, and a spraying mechanism and a driving mechanism are arranged between the bottom plate and the top plate; the two heat exchange faces of the fan blade area are sprayed, washed and cooled through the spraying mechanism, and the spraying mechanism is driven by the lifting mechanism to move up and down for spraying. The spraying mechanism is driven by the driving mechanism to perform automatic lifting cleaning, so that dust and impurities on the heat exchange surface are flushed, the fan blade area can be cooled, the vacuum degree of the steam turbine is kept within the required range for a long time, the working efficiency of the indirect cooling tower is improved, operation is convenient, the failure rate is low, and the practicability is high. And manual cleaning operation is not needed, time and labor are saved, the actual cleaning efficiency is improved, the risk of manual high-altitude operation is avoided, and long-term safe and stable production of enterprises is facilitated.