865results about "Boiler cleaning apparatus" patented technology

The present invention relates to the technical field of boiler drain treatment, and specifically to a headless full thermal deaerator for collecting boiler drain, comprising: a deaerator, a connecting shell and a base, the connecting shell is located outside the deaerator, the base is located at the bottom of the deaerator and the connecting shell, the end of the deaerator away from the deaerator is fixedly connected with a drain inlet pipe, the drain inlet pipe extends to the inside of the deaerator and is fixedly connected with a drain dispersion head, the inside of the drain inlet pipe and one end close to the drain dispersion head is provided with a guide component, the outside of the drain dispersion head is provided with a drain water separation tray, the end of the drain water separation tray away from the drain dispersion head is provided with a softened water pipeline, the end of the connecting shell close to the deaerator is fixedly connected with a sealing component, the connecting shell is connected to the deaerator through the connecting component, and a buffer component is provided inside the base. The beneficial effects of the present invention are: boiler drain is recycled, the deoxidizer and steam are mixed, the steam consumption for deoxidation is reduced, the thermal efficiency of the boiler is improved, and high efficiency and energy saving are achieved.

The present invention relates to a steam generator, which includes: a steam shell forming an outer shape and having a space for storing water formed therein; a steam heater, which is arranged inside the steam shell and generates steam by heating the water stored inside the steam shell by applying power; a water pipe, which is arranged on one side of the circumferential surface of the steam shell and is formed with a connecting hole, wherein the connecting hole allows water to flow from the outside into the interior of the steam shell, or allows water inside the steam shell to flow out to the outside; an air intake portion, which is arranged on the upper surface of the steam shell and is formed with an air intake port, wherein the air intake port allows air to flow into the interior of the steam shell; and a steam discharge portion, which is arranged on the upper surface of the steam shell at a predetermined interval from the air intake portion and is formed with a steam discharge port for discharging steam generated inside the steam shell and air flowing in through the air intake portion to the outside.

The utility model discloses a waste heat boiler ash removal device which comprises a waste heat boiler body, a coal economizer arranged in the waste heat boiler body and a spraying assembly arranged below or on the side face of the coal economizer, and a smoke inlet and a sewage outlet are formed in the lower portion of the waste heat boiler body. The spraying assembly comprises a plurality of spraying heads, each spraying head is provided with a water outlet hole and a dustproof column, the dustproof columns are matched with the water outlet holes to close or open the water outlet holes, the dustproof columns are in sliding fit with the water outlet holes, the sliding direction of the dustproof columns is parallel to the axial direction of the water outlet holes, and the dustproof columns are arranged on the spraying heads. And the water outlet hole is arranged towards the coal economizer. The ash removal device for the waste heat boiler is reasonable in structure, the spray header can be prevented from being blocked, the water outlet effect of the spray header each time is guaranteed, and therefore the cleaning effect on an economizer pipeline is guaranteed.

The invention belongs to the technical field of steam generator inspection and maintenance, and aims to solve the problems of low shot blasting channel correctness detection, low mixture recovery efficiency, cleaning effect detection and the like in the prior art. The invention discloses an intermediate collector and method for descaling the inner wall of a U-shaped heat transfer pipe of a steam generator, and the intermediate collector comprises a first pipeline, a second pipeline and a third pipeline which are connected in parallel, and is connected with the inlet end of a fourth pipeline; the outlet end of the fourth pipeline is connected with a fifth pipeline and a sixth pipeline which are connected in parallel, the fifth pipeline and the sixth pipeline are connected with a seventh pipeline, and the seventh pipeline is connected with an air blower; the method utilizes the device to realize high-efficiency recovery of the mixture. According to the invention, one-to-one channel detection can be conveniently realized, inconsistency of transmitting and receiving is avoided, and foreign matters are prevented from falling into the system.

The invention discloses a power plant water vapor centralized sampling device and method. The power plant water vapor centralized sampling device comprises a high-temperature and high-pressure sampling valve, a filter, a cooler, a cooler water inlet regulating valve, a cooler water return valve, a pressure reducing valve, a safety valve, an electromagnetic valve and a temperature controller. By means of the arrangement, in actual operation, the problems that a filter of a water vapor centralized sampling device is frequently blocked and cannot be thoroughly washed, and steam is easily discharged during sampling pollution discharge can be solved through the water vapor centralized sampling device. The opening degree of the cooling water inlet regulating valve of the cooler can be automatically regulated according to the temperature of the cooled sample water, so that the flow of the cooling water is reduced, the cooling water is saved, and the water vapor centralized sampling device is more economical and safer to use. Not only is the workload of workers reduced, but also the workers do not need to worry about steam discharge and scald accidents during pollution discharge. Compared with a traditional steam-water centralized sampling system, the safety and the convenience are greatly improved.

The utility model relates to the field of industrial boiler equipment, in particular to an automatic chemical feeding device for a boiler, which comprises a chemical feeding tank and the boiler, the chemical feeding tank and the boiler are connected through a boiler water supply pipeline, the top of the chemical feeding tank is provided with a water feeding port and a chemical feeding port, the water feeding port is connected with an external water supply pipeline, and the chemical feeding port is connected with an external chemical supply pipeline. A first electromagnetic valve is arranged on the water adding opening, a second electromagnetic valve is arranged on the medicine adding opening, a liquid level meter is installed on the outer side face of the medicine adding tank, a metering pump is arranged on a water supply pipeline of the boiler, a water quality monitor is arranged on the inner wall of the boiler, and the system further comprises a controller which is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the liquid level meter, the metering pump and the water quality monitor. The utility model provides an automatic boiler dosing device which solves the problems that an existing boiler dosing device is low in operation efficiency, high in safety risk and high in maintenance cost.

The utility model relates to a multifunctional sliding execution truss for tube bundle washing, which comprises a supporting bottom plate sliding on a movable underframe along the z direction, operating platforms are arranged on two sides of one end of the movable underframe, a turnover pedal is arranged between the two operating platforms, and the turnover pedal is driven by a turnover component to turn over; the turnover pedal has at least two states: firstly, the turnover pedal is connected with the two operation platforms and is positioned on a moving path of the supporting bottom plate; secondly, the overturning pedal keeps away from the moving path of the supporting bottom plate; the operation platform is used for installing various devices and allowing workers to walk. During working, the overturning pedal is in an open state and does not interfere with the movement of the six-axis robot on the movable bottom frame; in the non-working process, in order to facilitate walking of workers on the operating platforms, the overturning pedals are in a closed state to connect the two operating platforms, and suspension caused by the moving underframe and the moving path of the six-axis robot on the moving underframe is avoided.

The invention relates to the technical field of boilers, in particular to a saturated dual-purpose steam boiler and a flue structure thereof.The saturated dual-purpose steam boiler comprises a first boiler used for combusting fuel to generate smoke and converting liquid water into steam through heat exchange; the second boiler is used for burning fuel to heat the saturated steam into superheated steam; the smoke outlet is used for discharging smoke generated by the boiler; the communicating flue is used for guiding flue gas of the second boiler into the first boiler; the steam-water separator is used for separating water drops in the steam to obtain purer and dry saturated steam; the water draining module is used for draining condensed water separated by the steam-water separator and preventing steam leakage at the same time; the water supply module is used for conveying water to the first boiler and the second boiler; and the overpressure discharge module is used for discharging overheated steam to reduce the pressure in the second boiler. The steam generator has the beneficial effects that saturated steam and superheated steam under different working conditions can be produced, local vortex caused by direct hedging of smoke can be prevented, one smoke outlet is shared, and the applicability is improved.

The invention discloses a heat storage high-voltage electrode boiler control system, and relates to the technical field of boiler control. Sensors of different types are installed at a plurality of key positions of the system, and the sensors are used for collecting multi-dimensional data of normal operation samples and scaling samples; recording the working intensity grade and the total working duration grade of the boiler in a normal state in one day, marking each date to obtain a date marking sequence, counting the number from 0 to 8, and if one of the numbers exceeds a number threshold value, starting a boiler electrode scaling risk test; the method comprises the following steps: collecting an overall electricity consumption low-peak period time interval and a real cooling time interval of a city within one day, solving an intersection to obtain a test time interval, training a normal sample and a scaling sample by using an extreme gradient boost tree XGBoost model to obtain a scale layer thickness, calculating a scaling risk score through the scale layer thickness, and obtaining different descaling methods adopted for different grades.

The invention relates to the field of boiler soot blowers, in particular to a boiler soot blower drain water recycling device and a generator set, the boiler soot blower drain water recycling device comprises a drain water pipeline arranged on a soot blower, an air heater drain water tank, a primary air heater steam supply pipeline, a primary air heater, a check valve and a temperature control valve, one end of the check valve is connected with the drain pipeline, the other end of the check valve is connected with one end of the temperature control valve, the first end of the steam air heater drain tank is connected with the other end of the temperature control valve, the other end of the temperature control valve is further connected with the first end of the primary air steam air heater steam supply pipeline, and the second end of the primary air steam air heater steam supply pipeline is connected with one end of the primary air steam air heater. And the other end of the primary air heater is connected with the second end of the air heater drain tank. According to the boiler soot blower drain water recycling device, working media and heat can be recycled, and the economical efficiency of a unit is improved.

The invention provides a boiler decoking method, a boiler decoking device, boiler decoking equipment and a medium, and the method comprises the following steps: collecting multi-mode coke residue distribution data in a boiler; carrying out fusion processing on the multi-mode coke residue distribution data to obtain coke residue distribution characteristic parameters in the boiler; based on the coke residue distribution characteristic parameters, determining a coke residue growth trend by using a coke residue growth prediction model; according to the growth trend of the coke slag, acoustic wave control parameters and steam control parameters are determined through a digital twinborn simulation technology; and controlling a sound wave generator and a steam pulse device to perform targeted decoking on the boiler based on the sound wave control parameters and the steam control parameters. The decoking efficiency and accuracy can be improved.

The utility model relates to a blow-off flash steam recovery system for a heat recovery coke oven waste heat boiler, which is characterized in that heat recovery boilers are provided with heat recovery boiler drums, the bottoms of the heat recovery boilers are provided with heat recovery boiler blow-off pipes, and sewage outlets of the heat recovery boiler drums are connected with sewage inlets II of corresponding blow-off flash tanks through pipelines II; a blow-off pipe of the heat recovery boiler is connected with a first sewage inlet of the corresponding blow-off flash tank through a first pipeline, the top end of each blow-off flash tank is connected with an inlet of the steam compressor unit through a third pipeline, and an outlet of the steam compressor unit is connected with the low-pressure steam pipe network through a fourth pipeline. The heat recovery system has the advantages that pollution discharge flash steam of all the heat recovery boilers is recovered through the header pipe, the number of devices is reduced, and investment optimization and operation maintenance of the devices are facilitated; the steam compressor unit sucks flash steam, the flash steam is compressed and boosted to low-pressure steam, the low-pressure steam is connected to a low-pressure steam pipe network through an outlet pipeline of the steam compressor, and white steam caused by blow-off steam diffusion is avoided.

The embodiment of the invention provides a drainage recovery control method and system for a multi-source heat supply network. The method comprises the steps that data acquisition equipment is installed on all drainage pipelines before entering a drainage tank of the heat supply network; acquiring temperature parameters, flow parameters and conductivity parameters of each path of hydrophobic water in real time through the data acquisition equipment; and based on the temperature parameter, the flow parameter and the conductivity parameter, comprehensive state judgment of hydrophobic recovery treatment is carried out, and based on a judgment result, dynamic pollution discharge control is carried out. According to the embodiment of the invention, the blow-down valve is opened in a targeted manner through real-time acquisition and layered judgment, so that the mixed hydrophobic parameters are stabilized in a threshold range, and the problem that traditional static control cannot adapt to multi-source parameter differences is solved; and on the basis that pollution discharge is triggered only when parameters exceed the standard, qualified drained water is prevented from being discharged by mistake, and recoverable water resources and waste heat resources are reserved to the maximum extent.

The invention discloses an electrode boiler corrosion on-line monitoring sensor which comprises a spiral guide rail, the guide rail extends in a threaded mode in the vertical direction, the electrode boiler is sleeved with the guide rail, the lower end of the guide rail is rotationally connected to an assembly base, and the upper end of the guide rail is connected with the upper end of the electrode boiler through a vertical adjusting mechanism. A walking type monitoring mechanism capable of moving along the guide of the guide rail is assembled on the guide rail, and the monitoring end of the walking type monitoring mechanism is in contact with the peripheral wall of the electrode boiler. According to the invention, the corrosion condition of the inner circumferential wall of the electrode boiler can be effectively monitored, the monitoring accuracy and comprehensiveness are improved, an operator can adjust the adding amount of an agent in boiler water according to the monitoring condition, and maintenance personnel can conveniently carry out targeted maintenance on the corrosion area of the electrode boiler subsequently, so that the use safety of the electrode boiler is improved, and the service life of the electrode boiler is prolonged. And meanwhile, the service life of the electrode boiler is prolonged. The method is suitable for the technical field of electrode boiler corrosion monitoring.

The invention discloses a boiler blow-down water waste heat recovery control method, system and equipment and a medium. The method comprises the following steps that the current waste heat recovery efficiency eta of a waste heat recovery system is obtained; the current scaling coefficient R of a heat exchanger in the waste heat recovery system is obtained; according to the current waste heat recovery efficiency eta and the current scaling coefficient R, the heat transfer coefficient K of the heat exchanger is obtained; the current temperature T and the water quality concentration ratio C of the boiler are obtained; and inputting the heat transfer coefficient K, the current temperature T and the water quality concentration ratio C into a preset discharge capacity optimization model to obtain the optimal discharge capacity Q. The method has the advantages that the discharge capacity can be adaptively adjusted, and the boiler safety and waste heat recovery requirements can be balanced.

The invention discloses a vaporization device for preparing ethylenediamine, a raw material for piperazine synthesis, and relates to the technical field of energy-saving spiral tube-shaped heat exchange, including a heat exchange cylinder and a raw material tube. The vaporization device for preparing ethylenediamine, a raw material for piperazine synthesis, adopts a spiral heating channel to cooperate with a conveying pipe when vaporizing the ethylenediamine raw material, extends the heating path and promotes the relative flow of ethylenediamine and heating steam, accelerates vaporization and reduces energy consumption, and can weigh and block the vaporized ethylenediamine gas through the cooperation of a weighing plate and a spring, and when a certain amount is stored, the remaining gas is sealed by a connecting ring and a closing plate to ensure that the discharge volume meets the standard, in addition, the cooperation of a clamping rod and a tension spring keeps the closing plate closed, prevents gas leakage, and improves the extraction purity and efficiency, and at the same time, during the lifting process of the connecting rod, the spiral groove cooperates with the cleaning rod to clean the outer wall of the conveying pipe, keeps it clean, ensures heat exchange efficiency, reduces energy consumption, and improves overall production efficiency.

The invention discloses a drainage flash heat supply system of a once-through boiler under low load and an operation method of the drainage flash heat supply system. The drainage flash heat supply system comprises a drainage flash control valve, a drainage flash tank, a heat supply steam throttle valve, an electric heater and a condensation drainage recirculation pump which are sequentially arranged behind a water storage tank. When a unit undertakes a peak regulation task and a boiler enters a wet state operation mode under an ultra-low load working condition, drain water generated by a steam-water separator is introduced into a flash evaporation heat supply system, generated high-pressure steam is used for industrial heat supply, the steam meets the requirements of pressure and superheat degree of industrial steam through a throttling valve and an electric heater, and the heat supply efficiency is improved. The drain water produced in the flash tank is re-introduced into the feed line through a condensed drain water recirculation pump. According to the system, power supply and heat supply can be decoupled during low-load operation of a unit, meanwhile, the stable combustion requirement of boiler operation is met, and the hydrodynamic safety of each water cooling wall is protected.

The invention relates to a water level control method and device of a steam generator and computer equipment. The method comprises the steps that under the condition that it is detected that a main feed water valve of the steam generator has an upward floating fault, the feed water flow adjustment amount of the steam generator is determined according to the inlet and outlet water flow, the current water level value and the preset water level fixed value of the steam generator; determining an opening signal of a bypass valve based on a preset corresponding relation between the feed water flow and the opening signal of the bypass valve of the steam generator and the feed water flow adjustment amount; and the opening degree of the bypass valve is adjusted according to the opening degree signal, so that water level control over the steam generator is achieved. By the adoption of the method, disturbance to other steam generators can be avoided while the water level of the steam generator with the main water supply valve having the floating fault is adjusted to the stable state.

The invention belongs to the technical field of steam boilers, and particularly relates to an intelligent and accurate temperature control biomass steam boiler and an intelligent temperature control system thereof.The biomass steam boiler comprises a boiler body, and the boiler body internally comprises a combustion chamber, a steam heat exchanger, a feeding box, a feeding pipe, an auger, an air pump unit and a control box; the combustion chamber is mounted at the bottom of the furnace body; the steam heat exchanger is mounted above the combustion chamber in the furnace body; along with rotation of the spiral blade, the telescopic plate is guided along the inclined surface of the spiral blade to be extruded, so that the bottom of the telescopic plate ascends and shrinks, the purpose that the telescopic plate scrapes the surface of the spiral blade and fuel on the surface is achieved till the telescopic plate scrapes the fuel from the top of the spiral blade, and the effect that the fuel is thrown on the lower breast board is achieved; part of fuel is shaken and broken, the surface area of the broken fuel is increased, the contact area of the broken fuel and air is increased, more sufficient combustion is completed, the combustion efficiency is improved, and therefore the energy efficiency of the steam heat exchanger is improved.

The utility model provides a boiler waste heat recovery system. The boiler waste heat recovery system comprises a first heat exchanger, a second heat exchanger, a deaerator, a blowdown flash tank and a water supply device. Waste heat recovery water is contained in the water supply device, the water supply device is connected with the first heat exchanger and the second heat exchanger, the first heat exchanger and the second heat exchanger are connected in parallel, and the water supply device provides the waste heat recovery water for the first heat exchanger and the second heat exchanger; dead steam is discharged from the deaerator, the deaerator is connected with the first heat exchanger and provides the dead steam for the first heat exchanger, and the dead steam heats waste heat recovery water flowing through the first heat exchanger; high-temperature boiler water is contained in the blowdown flash tank, the blowdown flash tank is connected with the second heat exchanger and provides the high-temperature boiler water for the second heat exchanger, and the high-temperature boiler water heats waste heat recovery water flowing through the second heat exchanger. Waste heat recovery water flows through the first heat exchanger and the second heat exchanger and is heated, the temperature difference between a heat source and the waste heat recovery water is large, the heat transfer effect is better, and more waste heat can be recovered.

The invention discloses a steam utilization device for steam turbine overhaul, and belongs to the technical field of steam utilization, the steam utilization device comprises an equipment base, a heat exchange box body is fixedly mounted at the top of the equipment base, the top of the heat exchange box body is fixedly connected with an evaporation boiler through a heat conduction structure, and the evaporation boiler and the heat exchange box body are in heat conduction fit; an energy conversion shell is fixedly installed at the position, close to the heat exchange box body, of the top of the equipment base, a first-stage condenser is fixedly installed at the position, close to the energy conversion shell, of the top of the equipment base, and the inlet end of the first-stage condenser communicates with the outlet end of the energy conversion shell in a sealed mode through a pipeline. High-temperature and high-pressure steam firstly enters the heat exchange rectangular pipe to release heat energy, condensate water containing impurities is evaporated and purified through the discharged high-temperature steam, thorough separation of the impurities and a water body is achieved, and the situation that steam water containing the impurities enters a steam turbine again to pollute the steam turbine is fundamentally avoided.

To provide a boiler low temperature state quick flushing method.SOLUTION: A boiler flushing device includes: an activation mechanism comprising a boiler body and a power assembly provided at the boiler body; a scale removal mechanism comprising a transmission assembly provided at the power assembly and a scale scraping assembly provided at the transmission assembly; and a uniform stirring mechanism comprising a fixed column provided at the boiler body, a limiting assembly provided at the fixed column, and a motion assembly provided at the limiting assembly. The scale removal mechanism allows a scale scraping brush to perform circular motion on an inner wall of the boiler body to scrape scales on the inner wall of the boiler body. A scraping member is provided on the inner wall of the boiler body and cleans the scale scraping brush. At the same time, the uniform stirring mechanism is provided on the fixed column to avoid the scraped scales from accumulating on a bottom part of the boiler body and being discharged from the boiler body with water flow through a drain pipe and allow cleaning to be performed more thoroughly.SELECTED DRAWING: Figure 2

To prevent dust from adhering to the interior of a boiler to protect the boiler.SOLUTION: A boiler includes: a heat radiation chamber having a heat transfer pipe which receives radiant heat of an exhaust gas circulating from a waste incinerator to generate steam, and a convective heat transfer chamber which overheats steam through heat exchange between the exhaust gas and the heat transfer pipe. The boiler has a plasma actuator, which generates airflow by an AC voltage being applied thereto, on a peripheral surface of the heat transfer pipe. Dust contained in the exhaust gas flows along the airflow generated by the plasma actuator. Thus, the structure can inhibit the dust contained in the exhaust gas from adhering to the heat transfer pipe and inhibit corrosion of the heat transfer pipe from being caused by the dust.SELECTED DRAWING: Figure 1

The application discloses a device and method for preventing dry burning of a reheater of a waste heat boiler, and the device comprises a high-pressure blowing unit, a medium-pressure blowing unit, a low-pressure blowing unit and a reheater unit. The high-pressure blowing unit and the medium-pressure blowing unit can ensure that the reheater unit has steam flow in the whole blowing process, and the low-pressure blowing unit can stabilize the blowing pressure. The device and method can prevent the reheater from being in a dry burning state during blowing.

The present invention relates to the technical field of steam sampling equipment, specifically an intelligent boiler steam-water sampling device, including a condensing mechanism, the condensing mechanism including a vent pipe, one end of the vent pipe is connected to the boiler, the end of the vent pipe away from the boiler is fixedly connected to the condenser pipe, a spring circulation pipe is nested outside the condenser pipe, one end of the spring circulation pipe is connected to the upper end of the condenser pipe through a water inlet, and the other end of the spring circulation pipe extends to the lower end of the condenser pipe and is fixedly connected to an external water pipe; the present invention realizes automatic steam collection and cleaning by driving a turntable and a condensing device to work together through a motor. The cooling water temperature gradient is used to avoid premature liquefaction of steam and improve collection efficiency; the automatic cleaning function prevents residual contamination and ensures sample accuracy. The device has good sealing performance, high sampling efficiency, recycling of cooling water, and energy saving and environmental protection.

The utility model discloses a fuel oil steam generator for seaweed extraction, which belongs to the field of seaweed extraction, and comprises a generator body, the bottom of the generator body is fixedly connected with an outer cover, and the upper part of the inner wall of the outer cover is fixedly connected with telescopic noise reduction cotton; through the arrangement of the motor, the threaded rod, the threaded sleeve, telescopic noise reduction cotton, a first conical tooth, a second conical tooth, a rotating rod, a gear, a rack and a water pipe, when the motor drives the threaded rod to rotate, the threaded sleeve in threaded fit with the threaded rod can drive the telescopic noise reduction cotton to move upwards through a limiting block; furthermore, the device enables the generator body not to generate loud noise in the use process, certain damage to eardrums caused by the fact that surrounding workers are in the environment for a long time is prevented, and after the generator body is used for a long time, the surface of the generator body is not at a high temperature through cooling of the water pipe, so that the service life of the generator body is prolonged. And the normal use of the control host is prevented from being influenced by high-temperature line burnout.

The utility model discloses a boiler cleaning device convenient to separate, and relates to the technical field of boiler cleaning, the two sides of an assembling rod are respectively provided with two movable electric push rods, a rotating frame is connected between the output ends of every two adjacent movable electric push rods, an air spraying pipe is rotatably installed in the middle of each rotating frame, and air spraying holes are formed in one side of each air spraying pipe at equal intervals; a servo motor is installed on the top of the rotating frame, the output end of the servo motor is connected with a rotating shaft on the top of the adjacent air spraying pipe, a communicating hole is formed in the top of the outer side of the air spraying pipe, and a transfer air box is rotationally connected to the position, corresponding to the communicating hole, of the outer side of the air spraying pipe. And the servo motor is matched to drive the gas spraying pipe to swing at multiple angles, so that gas sprayed out of the gas spraying holes faces the cleaning brush, residual dirt in the cleaning brush is removed under the impact action of the gas, the cleaning brush does not need to be cleaned manually, the labor intensity of workers is reduced, and the cleaning efficiency is high.

A sludge lance system for cleaning a tube bundle of a steam generator is disclosed. The sludge lance system comprises a mount, an index drive, and a sludge lance comprising a longitudinal rail, a manifold, an oscillator assembly, and a distal head. The oscillator assembly comprises a rotary output shaft. The distal head comprises a body portion, a first nozzle body on a first side of the distal head, and a second nozzle body on a second side of the distal head opposite the first side. The first nozzle body is rotatable relative to the body portion about a first longitudinal axis in a first direction in response to a rotation of the rotary output shaft. The second nozzle body is rotatable relative to the body portion about a second longitudinal axis in a second direction opposite the first direction in response to the rotation of the rotary output shaft.

The invention relates to the technical field of high-temperature gas cooled reactors and discloses a cleaning device which comprises a positioning assembly, a pushing assembly, a guiding assembly, a spray needle and a visual assembly, the positioning assembly comprises a connecting piece capable of moving in any direction of the X-axis direction, the Y-axis direction, the Z-axis direction and the Z-axis circumferential direction, the pushing assembly is connected with the connecting piece, and the guiding assembly is connected with the visual assembly. The pushing assembly comprises a moving part capable of moving in the Z-axis direction, the guiding assembly is connected with the pushing assembly and comprises a guiding hole, the guiding assembly can be connected with any to-be-cleaned assembly and enables the guiding hole to be communicated with a working cavity of the to-be-cleaned assembly, the spraying needle is arranged on the moving part, and the moving part can drive the spraying needle to penetrate through the guiding hole and be inserted into the working cavity. The spray needle can spray out a cleaning medium to clean the working cavity, the visual assembly comprises a camera, and the camera can observe the state of the spray needle. The cleaning device provided by the embodiment of the invention can be used for quickly positioning and cleaning the tubular parts such as the throttling assembly, so that the manpower is saved.

The application discloses a flue gas heat energy and condensate water utilization system, which comprises a boiler, a flue gas cooling device, and a deoxygenated water tank. The flue gas generated by the boiler combustion enters the flue gas cooling device through a first flue for cooling. The flue gas exchanges heat with the water in the condensate water tank, the water in the condensate water tank is heated, the flue gas is cooled, and the cooled flue gas is discharged through a second flue. The condensate water formed in the flue gas cooling process falls into the condensate water tank. The water in the condensate water tank is deoxygenated by the deoxygenated water tank and then flows back to the boiler. The flue gas heat energy generated by the boiler combustion is utilized, the slightly acidic condensate water generated by the flue gas is mixed with the slightly alkaline softened water and the boiler water, the acidic condensate water and the alkaline softened water and the boiler water are subjected to acid-base neutralization reaction, the flue gas is used to heat the condensate water, and the like, so that the flue gas condensate water does not contain acidic gas, and thus the flue gas condensate water is slightly alkaline water suitable for the utilization of the boiler.