12655results about "Pump installations" patented technology

A handheld fan includes a housing, a fan module, a power module, and a retractable cable module. The fan module is disposed in the housing, the power module is disposed in the housing and configured to supply power to the fan module, the retractable cable module is disposed in the housing and includes a cable retractable relative to the housing to be withdrawn into the housing or extended out of the housing, and the cable is configured to connect to an external electronic device, and supply power to the external electronic device through the power module. When a user carries the handheld fan and has a charging need, the cable is capable of being pulled out of the housing of the handheld fan, and connected to the external electronic device including a mobile phone. The power module is configured to supply power to the external electronic device.

A portable fan with predictable battery life and a method for predicting battery life thereof. The portable fan includes a fan body, where a circuit board assembly and a storage battery are installed in a shell of the fan body, a microprocessor and a current collector are encapsulated in the circuit board assembly, a load and a display device are provided on the fan body, and the display device includes a function lighting display area and a battery life display area. According to the portable fan, the display device can be used to indicate a working mode that the fan body is currently turned on and the working battery life that the storage battery can provide under the corresponding working mode. An intuitive and standard time unit is used for indication, so that a clear visual perception effect is achieved.

An air guide frame, a fan head, and a handheld concentrating fan are provided. The air guide frame is configured to be arranged at an air outlet of a fan head and guide air from a fan. the air guide frame includes an inner frame and a separator ring arranged at a periphery of the inner frame; a first air channel is formed in a periphery of the separator ring; a second air channel is formed between the inner frame and the separator ring; and a wind speed of wind exported from the second air channel is greater than a wind speed of wind exported from the first air channel. Compared with the existing technology, the air guide frame having the first air channel and the second air channel can implement the wind speeds of winds blown out through the two air channels being different.

A portable fan includes a housing body, a fan assembly, a power supply assembly and a first clamping device. The housing body is provided with an accommodating chamber, an air inlet, and an air outlet; the air outlet, at least part of the accommodating chamber and the air inlet are communicated to each other in sequence along a first preset direction. The fan assembly is located within the accommodating chamber and between the air inlet and the air outlet, and is configured to drive an airflow to flow from the air inlet to the air outlet. The power supply assembly is located within the accommodating chamber, the power supply assembly is offset from a projection of the fan assembly along the first preset direction, and the power supply assembly is electrically connected to the fan assembly to supply power to the fan assembly.

The present invention discloses a handheld spray fan, the handheld spray fan includes a housing assembly, fan assembly, and spray device. The housing assembly features a handheld part, an air duct at one end, and an air outlet cover at the end of the air duct with a through-hole and multiple air outlet holes. The fan assembly is installed within the air duct, and the spray device comprises a water tank, water pipe, mounting seat, fiber water guide, and atomizer. The water tank is positioned within the housing assembly, the water pipe connects the water tank and the mounting seat, the mounting seat is located at the through-hole, and the atomizer is installed on the mounting seat and exposed through the through-hole. The fiber water guide extends from the water tank to the atomizer, ensuring continuous water supply for stable misting.

Disclosed is a multifunctional outdoor fan. The multifunctional outdoor fan includes a fan base, a fan support, and a fan head. The fan head is provided with a rotating shaft, fan blades mounted on the rotating shaft, and a fan grille mounted outside the fan blades. The fan grille is provided with a water tank, the water tank is provided with a water injection port, and the water injection port is connected to a water tank cover. The rotation shaft is provided with an atomization assembly, the atomization assembly is in communication with the water tank through a water tube, the water tank supplies water to the atomization assembly through the water tube, and the atomization assembly is provided with an atomization port.

A misting fan includes a fan assembly and a misting assembly. The fan assembly includes a fan housing and a fan blade assembly. The fan housing includes an air inlet guard and an air outlet guard. The air outlet guard includes a mist outlet portion and air outlet vanes, the mist outlet portion includes a mist outlet hole and air outlet holes. The misting assembly includes an atomizing member and a water tank. The water tank includes a main tank body, at least one water delivery pipeline, and an atomizing portion. Liquid in the main tank body is provided to the atomizing member through the at least one water delivery pipeline and the atomizing portion, thereby enabling the atomizing member to spray mist spray formed by atomizing the liquid from the mist outlet hole, and outlet airflow is arranged around the mist spray.

A waist hanging fan is provided, which includes an outer shell and a blowing component. The blowing component includes an inner wind duct shell, two ends of the inner wind duct shell are provided with an air inlet end and an air outlet end; an air blower provided in the inner wind duct shell; and a wind guide cover. The wind guide cover is circular. A lower end of the wind guide cover is provided in the outer shell and is sleeved on an outer side of the inner wind duct shell. An outer wall of the lower end of the wind guide cover is provided with a clamping protrusion, a wall of the outer shell or inner wind duct shell is provided with at least two clamping grooves. The present disclosure has the advantage that it is easier for wind to blow onto a user's body.

A fan light is provided, including: a central assembly, which includes a housing and a control mechanism mounted inside the housing, where the housing can be connected to an external mounting structure; a fan blade assembly, which is detachably in pivotal connection to the control mechanism; and a lamp frame assembly, which includes a connector connected to the housing, and a first lamp frame and a second lamp frame that are connected to the connector. The first lamp frame and the second lamp frame are configured to have a first state of being rotatably unfolded relative to the connector and surrounding the fan blade assembly, and a second state of being rotatably folded relative to the connector. The fan light can conveniently switch states and is convenient for storage and transportation, and damage is avoided. Meanwhile, difficulty of operations cannot be increased.

A waist fan includes a housing, a fan assembly arranged in the accommodating cavity and configured to guide airflow from the air inlet to the air outlet, a light-emitting assembly, and a control assembly electrically connected to the light-emitting assembly and configured to control the light-emitting assembly to emit flashing light in different colors and / or warning flashing light. The housing includes an accommodating cavity, an air inlet communicated with the accommodating cavity, and an air outlet communicated with the accommodating cavity.

A handheld fan, comprising an air supply part and a handheld part, wherein the air supply part comprises a fan housing and a fan assembly arranged in the fan housing; the fan housing comprises a cover body, an air outlet accessory arranged at a front end of the cover body, a rear air inlet accessory arranged at a rear end of the cover body, and side air inlet accessories arranged at both sides of the cover body; the fan assembly is mounted in the cover body, and its air outlet is connected to the air outlet accessory. The invention has a reasonable structure, beautiful shape, high ornamental value, compact structure, easy operation, and multi-faceted air inlet, which provides sufficient air volume for the high-speed running fan, so that the handheld fan maintains high-performance operation and improves the user experience.

The invention discloses an offshore multi-energy combined supply system based on constant-pressure compressed carbon dioxide energy storage and an operation method of the offshore multi-energy combined supply system. The system comprises a working medium storage device, a heat energy storage device, a charging process module, a gas-liquid conversion loop, a discharging process module, a cold energy supply module and a heat energy supply module. By improving the energy release process structure of the compressed carbon dioxide energy storage system, the pressure of high-pressure carbon dioxide is reduced to normal pressure after primary expansion, so that low-temperature cold energy is generated while power is generated, consumption of stored heat is saved, residual stored heat is used for heat supply, the comprehensive utilization rate of energy is increased, and combined supply of cooling, heating and power is achieved; the system further comprises an integrated thermally-driven combined cooling and power supply subsystem capable of switching power generation / refrigeration modes, organic Rankine cycle and jet refrigeration cycle are highly integrated, investment cost and space occupation are reduced, redundant heat energy is flexibly and efficiently converted into electric energy or cold energy, and the flexibility of multi-energy combined supply of the system is improved.

The invention relates to the technical field of tunnel monitoring, and discloses a tunnel fan health diagnosis and early warning system and method based on multi-source fusion, comprising a sensing layer, a data acquisition and transmission layer, a data processing and fusion layer, an intelligent diagnosis and early warning layer and an application layer which are arranged in sequence from bottom to top by adopting a layered architecture, all the layers cooperate to achieve tunnel fan collision safety and equipment health two-dimensional management and control. Vibration, displacement, strain, temperature and power multi-source monitoring data are fused, single-parameter monitoring limitation is broken through, wind turbine typical faults such as bearing damage, coupling misalignment and foundation looseness and specific risks such as over-limit vehicle collision are covered, and a full-dimension monitoring system is constructed. By means of a deep belief network (DBN), a convolutional neural network (CNN) and an MATLAB core algorithm, and in combination with a fault-feature mapping library and a multi-evidence combined judgment mechanism, the fault diagnosis accuracy is greatly improved.

A spray fan includes a box, a mounting base and a fan body. The fan body is arranged on the mounting base so that the fan body has a first state arranged on the box and a second state contained in the box. The disassembly and assembly design of the spray fan enhances the convenience of storage and portability. The configuration of the spray assembly effectively prevents an excessive amount of liquid in the water storage tank, thereby avoiding issues of excessive internal pressure. Additionally, it prevents liquid from overflowing from the ultrasonic atomizer of the spray assembly, ensuring optimal atomization performance.

A handheld blower and / or vacuum has a housing base body with a main flow duct in which a fan is arranged and through which main air flow flows when the blower is in operation. The housing has a handle having a cooling air duct that extends from an inlet opening on the main flow duct via a holding section of the handle up to an outlet opening. The inlet opening is assigned to a first end of the handle. When the blower is in operation, cooling air flow flows from the inlet opening of the handle to the outlet opening of the cooling air duct. An electronic structural unit is arranged in the handle in such a way that this electronic structural unit is cooled by the cooling air flow when the blower is in operation.

A portable fan with predictable battery life and a method for predicting battery life thereof. The portable fan includes a fan body, where a circuit board assembly and a storage battery are installed in a shell of the fan body, a microprocessor and a current collector are encapsulated in the circuit board assembly, a load and a display device are provided on the fan body, and the display device includes a function lighting display area and a battery life display area. According to the portable fan, the display device can be used to indicate a working mode that the fan body is currently turned on and the working battery life that the storage battery can provide under the corresponding working mode. An intuitive and standard time unit is used for indication, so that a clear visual perception effect is achieved.

The invention discloses a fault detection method suitable for a permanent magnet motor sewage pump, and particularly relates to the technical field of motor equipment operation fault detection.The fault detection method comprises the following steps that stage division is conducted on the operation process of the permanent magnet motor sewage pump, and staged dynamic baselines corresponding to all operation stages are established; extracting transient abrupt change of the operating parameters under the dynamic baseline constraint and forming a transient abnormal event sequence; the method comprises the following steps: judging the damage degree grade of a transient abnormal event, continuously accumulating risk integrals, outputting early warning information when a risk reaches a trigger condition, and generating an operation disposal instruction; according to the invention, by constructing a staged dynamic baseline and extracting a transient abnormal event, accurate identification of abnormal behaviors in different operation stages is realized; and in combination with a continuous accumulation mechanism of the damage degree grade and the risk integral, when the risk reaches a triggering condition, an early warning is output, and an operation disposal instruction is generated, so that the accuracy, timeliness and operation safety of fault detection of the permanent magnet motor sewage pump are improved.

A handheld fan is provided, including a housing body. The housing body includes a hand grip portion, an air duct portion is disposed in the housing body, a motor is disposed in the air duct portion, a motor circuit board is disposed on the motor, and the motor circuit board is electrically connected to the motor. A control circuit board and a battery are further disposed in the housing body, the control circuit board is electrically connected to the motor circuit board, and the control circuit board is electrically connected to the battery. According to the above structural configuration of the handheld fan, the motor circuit board and control circuit board are separately disposed in the housing body, so that heat generated by the motor circuit board and control circuit board is distributed across distinct components. Additionally, the motor circuit board is independently disposed on the motor.

An electric motor having a stator and a rotor in which the electric motor is an axial flux motor. The stator has a multiplicity of cores which, along a circumferential direction, are disposed beside on another on a common first diameter and are in each case surrounded by one coil. The rotor has a multiplicity of magnets which, along the circumferential direction, are disposed beside one another on a common second diameter on a support. Each magnet in the circumferential direction extends across a first angular range and the magnets are disposed so as to be mutually spaced apart by a second angular range formed by the support, which support is also heatable by the stator by induction. The second angular range is at least 30% of the first angular range.

The utility model relates to the technical field of fans, in particular to a cooling fan with a side suction type flow channel, which comprises a base, a side suction type flow channel, a side suction type flow channel and a side suction type flow channel, the rotor is rotationally arranged in the accommodating cavity and is provided with an axis; the stator is fixedly arranged in the accommodating cavity and is coaxial with the rotor; the stator is provided with a shaft tube part corresponding to the axis, a first bearing is arranged in the shaft tube part, and the axis is sleeved with the first bearing; the base is provided with at least one side suction type flow channel, and the side suction type flow channel forms an air inlet in the surface, facing the air inlet side, of the base and forms an air outlet in the cavity wall of the containing cavity. An included angle is formed between the extending direction of the axis of the air inlet and the extending direction of the axis of the air outlet. Through the arrangement of the side suction type flow channel, the air inflow in unit time is increased, the performance and efficiency of the fan are improved, more air flows more effectively take away heat, and the heat dissipation effect is improved.

The invention relates to the technical field of agricultural machinery, and discloses an adjustable soil covering device for ginger planting, comprising: a mobile vehicle, the front side of the bottom of which is provided with a front wheel matched with the curved surface of a ridge, and the rear side of which is provided with a rear wheel with a ditch edge profiling structure; the central mixing bin is integrally formed in the middle of the mobile vehicle chassis, and a rotatable scattering disc is coaxially arranged in the central mixing bin. The mixing process of soil and fertilizer is innovatively integrated in the central mixing bin, and the fertilizer is sucked from a storage box through a Venturi negative pressure generator in a pneumatic conveying mode; the high-pressure fan provides airflow power to feed the materials into the mixing bin, non-blocking automatic fertilizer supply is achieved, the fertilizer and soil intersect in the bin, the materials are guided to spirally fall down by means of the tapered spiral flow guide column, the mixing path is prolonged, meanwhile, the ultrasonic vibration plate continuously vibrates to form lumps, it is guaranteed that the two materials are highly and evenly mixed, and the mixing efficiency is improved. And a mixed substrate with stable quality is provided for subsequent precise soil covering.

The invention provides a predictive maintenance method and system for an air suspension fan based on digital twinning, and the method comprises the steps: collecting an air flow abrupt change characteristic when high-temperature dust-containing waste gas flows into the air suspension fan, transmitting the air flow abrupt change characteristic to a digital twinning system, and determining the air flow abrupt change characteristic; extracting a local clearance reduction trend of the foil and the bearing from the non-uniform expansion amount of the foil, and calculating space distribution after clearance reduction to obtain a target gas film thickness value; the target gas film thickness value is compared with a preset collision and abrasion threshold value, and if the target gas film thickness value is smaller than the threshold value, the collision and abrasion risk probability is evaluated through a Monte Carlo method; if the collision and abrasion risk probability exceeds a preset safety range, calculating a gas film rigidity fluctuation range based on a gas dynamics theory; and extracting a vibration amplitude analysis result from the dynamic response parameters of the foil bearing of the air suspension fan, and calculating a stability prediction index.

The invention belongs to the field of vacuum pumps, and provides a vacuum pump and application thereof in refrigerators.The vacuum pump comprises a pump body, the pump body is composed of a bottom cover, a middle cover and an end cover, the middle cover is located between the bottom cover and the end cover, a motor is arranged on the side, away from the middle cover, of the bottom cover, and an output shaft of the motor extends to the inner side of the bottom cover to be connected with an eccentric wheel; the outer edge of the eccentric wheel is in contact with a leather cup support slidably connected with the bottom cover, and a guide hole is formed in the middle of the leather cup support. A leather cup and a steel needle linkage mechanism are adopted to replace an electromagnetic valve, a motor drives an eccentric wheel to drive a leather cup support to do reciprocating motion, a pull cup is pulled to do reciprocating deformation in the motion process, reciprocating air exhaust is conducted by changing the size of the space of a pump body cavity, working noise is effectively controlled, and meanwhile the air exhaust speed is increased; and compared with a traditional electromagnetic valve, the volume of the low-oxygen fresh-keeping electromagnetic valve is effectively reduced, and the space utilization rate in the working process is improved.

The utility model relates to the technical field of shield pumps, in particular to a totally-enclosed shield pump which comprises a shield pump body and a shield motor, one side of the shield pump body is connected with the shield motor through a hoop, and the shield motor comprises a front bearing seat assembly, a rear bearing seat assembly, a stator assembly, a rotor assembly and a cable head. The rotor assembly is sleeved with the stator assembly, the front bearing seat assembly and the rear bearing seat assembly are connected to the two sides of the stator assembly respectively, the front bearing seat assembly comprises a front bearing seat and a front bearing, and the rear bearing seat assembly comprises a rear bearing seat, a rear bearing and a plug. The motor can be cooled, the loss of the bearing can be reduced, the motor is prevented from being damaged due to overheating, the motor and the pump body are simple in connection, the assembly process is simple, maintenance is convenient, and the motor can be quickly opened to be repaired when the shield pump is damaged.

The invention discloses a wind power generation device and a wind power generation control method.The wind power generation device comprises a supporting column, a sensor and a wind power generation mechanism, the wind power generation mechanism comprises a generator and a fan blade set, the wind power generation device further comprises a speed reduction mechanism, the speed reduction mechanism is electrically connected with a control system, and the sensor is electrically connected with the control system; when the sensor detects that the external wind speed reaches the first preset value, the control system controls the speed reduction mechanism to blow air to the fan blade set, speed reduction is conducted through blowing, a braking speed reduction structure does not need to be additionally installed between the blades and the generator, and therefore mechanical abrasion and maintenance cost are reduced; a complicated mechanical braking speed reduction structure is not arranged, so that the design of the wind driven generator is simpler, the weight is lighter, and the installation and the maintenance are more convenient; and mechanical parts are reduced, so that the reliability of the whole system is improved, potential fault points are reduced, and the service life of the wind driven generator is prolonged.

The utility model relates to the technical field of pipeline pumps, and discloses a vertical pipeline pump which comprises a pump body arranged outside a shaft body, a pump cover and a sealing gland, the top of the pump body is connected with the pump cover, the top of the pump cover is connected with the sealing gland, a sealing cavity is formed between the pump cover and the sealing gland, a pump body flushing hole is formed in the pump body, and a pump cover flushing hole is formed in the pump cover. A first sealing flushing hole and a second sealing flushing hole are symmetrically formed in the side wall of the sealing gland, the pump body flushing hole, the pump cover flushing hole and the sealing cavity are sequentially communicated, the first sealing flushing hole is externally communicated with a liquid storage tank water outlet and communicated with the sealing cavity, and the sealing cavity is communicated with the second sealing flushing hole. And the second sealing flushing hole is externally communicated with a liquid storage tank water inlet. The pump body flushing hole is formed in the pump body, the pump cover flushing hole is formed in the pump cover, and sealing flushing liquid enters the sealing cavity along the pump body flushing hole and the pump cover flushing hole, so that the sealing shaft sleeve is flushed and cooled, and the service life of the sealing shaft sleeve is prolonged.

The invention discloses a photovoltaic-driven IDC electric-cooling linkage method and device, and belongs to the technical field of IDC electric-cooling linkage, and the method comprises the following steps: S1, constructing a gravity energy storage structure; s2, the gravity object is lifted to the highest point of the gravity object channel through the gravity energy storage structure; s3, air at the bottom of the gravity object channel is compressed for the second time, and a thermal cracking reaction is carried out; s4, thermal cracking gas generated by the thermal cracking reaction is drained, and combustion products are discharged into a gas storage chamber; s5, the generated steam waste heat pushes a turbine in a turbine chamber to do work for power generation; and S6, domestic hot water and night heating hot water are prepared, convective heat exchange is conducted, the low-temperature reclaimed water obtained after heat exchange is heated into high-temperature steam in a cooler, the high-temperature steam enters a turbine to become high-temperature reclaimed water, and the high-temperature reclaimed water flows into a control center or a water storage pool. The organic matter compressed garbage is used as a gravity object for gravity energy storage, and heavy oil, solid fuel, adsorbents and other high-value products are produced in the gravity energy storage process.

An electrical feedthrough includes a base body with a sealing region, at least one opening and an electrical conductor fed through the opening, wherein the conductor is held in the opening by a fixing material and the fixing material seals the opening. The edges which surround the opening are designed to be sharp and all edges of an outer contour of the base body are provided with a chamfer or a rounding, which has a size or a radius r in the range of 0.3 mm to 2 mm.

The invention discloses a circulating pump control method based on a PLC, and relates to the technical field of circulating pump control, and the method comprises the steps: collecting key working condition data of a circulating pump, calculating a flow instantaneous deviation value, inputting the deviation and the real-time key working condition data into a lightweight digital twinborn model embedded in the PLC, and predicting flow output under an ideal working condition. Comparing with an actual value to obtain a deviation factor, correcting a current PID parameter based on the deviation factor, and calculating a target output frequency in combination with the flow deviation; and the PLC dispatches the current optimal pump set and the corresponding frequency in combination with the target output frequency and the health index and the operation duration of each pump, soft start-stop control is executed, and the selected pump sets are stably started one by one. The problems of response lag and extensive dispatching of a traditional control method are solved, and the intelligent control level and engineering adaptability of the circulating pump control method are remarkably improved.