318results about "Priming pump" patented technology

An apparatus for an aircraft powerplant includes an impeller rotor and a seal runner. The impeller rotor includes a plurality of fluid circuits. Each of the fluid circuits includes a first outlet passage, a second outlet passage and an inlet passage fluidly coupled to the first outlet passage and the second outlet passage in parallel. The seal runner includes a bore, an inner guide surface and an outer land surface. The seal runner extends circumferentially about the axis and radially between the inner guide surface and the outer land surface. The bore is fluidly coupled to the first outlet passage of each fluid circuit. The inner guide surface forms a radial outer peripheral boundary of the bore. The inner guide surface radially diverges away from the axis as the inner guide surface extends axially away from the impeller rotor and to a distal end of the seal runner.

The invention relates to a vertical water-cooling self-priming pump, and belongs to the technical field of fluid conveying. Comprising an upper liquid storage cylinder and a lower liquid storage cylinder which are fixedly connected, a water inlet pipe is arranged on the rear side of the lower liquid storage cylinder, a discharge pipe is arranged on the front side of the lower liquid storage cylinder, a water outlet pipe is arranged on the front side of the upper liquid storage cylinder, and an exhaust valve is arranged at the top of the upper liquid storage cylinder; a water-cooled motor is fixedly arranged in the upper liquid storage cylinder, a multi-stage water pump is arranged in the lower liquid storage cylinder and connected with the water-cooled motor through a coupling assembly, and a supporting assembly is arranged between the water-cooled motor and the inner wall of the upper liquid storage cylinder; an overflow protection assembly is arranged at one end, away from the lower liquid storage cylinder, of the water inlet pipe; the problems that an existing self-priming pump is unstable in installation of a special-shaped motor, high in requirement for the environment of a cooling system, low in lift, unstable in long-time operation and liquid overflows when the self-priming pump is closed are solved.

The invention discloses an energy-saving air conditioner fan circulating water pump and a control method, and relates to the technical field of energy-saving household appliances, and the energy-saving air conditioner fan circulating water pump comprises a motor, a peristaltic pump shell, a peristaltic pump rotor and a centrifugal pump shell. The front end of the motor output shaft is connected with a fan; a plurality of extrusion wheels are arranged on the peripheral side of the peristaltic pump rotor, when the peristaltic pump rotor is in a first state, the extrusion wheels are matched with the peristaltic pump shell to extrude the elastic hose, the peristaltic pump rotor is in transmission connection with the output shaft, and when the peristaltic pump rotor is in a second state, the peristaltic pump rotor is separated from the output shaft; the extrusion wheel is separated from the elastic hose, the centrifugal pump shell is connected to the rear end of the peristaltic pump shell, an impeller is arranged in the centrifugal pump shell and connected to the rear end of the output shaft, the centrifugal pump shell is connected with a first water inlet pipe and a first water outlet pipe, and the first water outlet pipe is communicated with the water inlet end of the elastic hose. According to the centrifugal pump, one motor can be used for driving the fan and the impeller in the centrifugal pump shell, and energy consumption is reduced.

The present invention relates to a method of starting a submersible pump used for transferring liquefied gas. The method includes starting a submersible pump (1A) disposed in a suction container (2A) of a pump apparatus (100A) to deliver liquefied gas to a suction container (2B) of a pump apparatus (100B) through a flow-path switching device (5A) in the suction container (2A), passing the liquefied gas through a flow-path switching device (5B) in the suction container (2B) while the liquefied gas bypasses a submersible pump (1B) disposed in the suction container (2B), and then starting the submersible pump (1B).

The utility model discloses an automatic liquid adding device of a self-priming pump, which comprises a self-priming pump body, the self-priming pump body is provided with a liquid inlet end and a liquid outlet end, the liquid inlet end is connected with a liquid inlet pipe, the liquid outlet end is connected with a liquid outlet tee joint, the other two connectors of the liquid outlet tee joint are respectively connected with a liquid outlet pipe and a liquid storage tank, the liquid outlet pipe is connected with a liquid supplementing branch pipe, and the liquid supplementing branch pipe is connected with a liquid supplementing pipeline. The other end of the liquid supplementing branch pipe is communicated with the liquid storage tank, and an electromagnetic valve is installed on the liquid supplementing branch pipe and is in linkage control with a metal electrode bar fixed to the top of the liquid storage tank. By the adoption of the device, automatic liquid supplementing can be achieved subsequently only by filling the pump shell with the solution when the self-priming pump is installed, the problem that the self-priming pump can work only by adding the solution into the liquid storage tank every time before being started is solved, and the working efficiency is improved.

The fire pump comprises a motor and a pump body, the pump body is in transmission connection with the motor, the manual-automatic integrated exhaust valve is installed at the position, close to the top of the pump body, of the pump body, and the manual-automatic integrated exhaust valve comprises an exhaust valve body, an exhaust connector, an exhaust pipe and an automatic exhaust mechanism. The bottom of the exhaust valve body is communicated with the pump body through an exhaust pipe, and the exhaust connector is installed on the top of the exhaust valve body and provided with an automatic exhaust hole leading to the exhaust valve body. The automatic exhaust mechanism is installed in the exhaust valve body and comprises a floating ball and a sealing valve rod which is distributed in the vertical direction and can move up and down, the floating ball is fixed to the lower end of the sealing valve rod, a conical plug part is arranged on the sealing valve rod, and the conical plug part is used for blocking the automatic exhaust hole under the acting force of the floating ball when the water level in the exhaust valve body rises. According to the utility model, the exhaust effect can be obviously improved, the operation of the fire pump is more stable, and the working efficiency and the performance are greatly improved.

The invention relates to the technical field of self-priming pumps, in particular to a self-priming pump and a control method thereof.The self-priming pump comprises a pump body, a liquid storage cavity is formed in the pump body; the controller is arranged on the pump body; the liquid level sensing assembly is arranged in the liquid storage cavity and connected with the controller, and the liquid level sensing assembly is used for detecting the real-time liquid level height in the liquid storage cavity, generating a signal and transmitting the signal to the controller; the air exhaust assembly comprises a vacuum pump and a channel which are arranged on the outer side of the liquid storage cavity, and the vacuum pump is connected with the controller; one end of the channel is communicated with the liquid storage cavity, and the other end is connected with the vacuum pump; after the power supply is switched on, if the liquid level height in the liquid storage cavity is lower than a first preset height, the liquid level sensing assembly generates a first signal and transmits the first signal to the controller, and the controller controls the vacuum pump to start working. The vacuum pump is adopted for pumping air, and the self-suction speed is greatly increased.

The utility model belongs to the technical field of water supply, and particularly relates to a remote control vacuum pump exhaust device and system, which comprises a vacuum pump, a vacuum pump control box, a main exhaust pipeline and an electromagnetic valve, the electromagnetic valve is arranged on a main exhaust pipeline, the control end of the electromagnetic valve is connected with the vacuum pump control box, a starting button and a stopping button are arranged on the vacuum pump control box and used for inputting a starting signal and a stopping signal of the vacuum pump, and the output end of the vacuum pump control box is connected with the control end of the electromagnetic valve. Remote starting and stopping of the vacuum pump exhaust device can be achieved, and the starting efficiency of the centrifugal pump is greatly improved.

The invention discloses a water pump starting device, a quick-start water pump and a water pump starting method.The water pump starting device comprises a side valve body, a side valve clack, a guide rod, a spring, a bayonet lock, a fluid passing body, a main valve clack and a pin shaft, the side valve clack is connected with the guide rod and can be in sealing fit with the side valve body under the action of the spring, and the side valve clack is connected with the guide rod; the guide rod is in sliding fit with the side valve body and the fluid passing body, the bayonet lock is matched with a guide hole in the guide rod to limit or release the main valve clack, the main valve clack is rotationally connected with the fluid passing body through a pin shaft and is in linkage with the side valve clack under the action of water supply pressure, and therefore water path switching in the pump starting process is completed. The device is compact in structure and easy and convenient to operate, automation can be achieved, the starting time is effectively shortened, cavitation is prevented, the operation efficiency and reliability are improved, and the service life of equipment is prolonged.

The application discloses a kind of continuous self-bleeding self-suction pumps, it is related to self-suction pump technical field, including main body, the upper portion of the main body is provided with self-suction tank, the top of the main body is equipped with steam jacket heat tracing, the upper end of steam jacket heat tracing is equipped with injection device, the lower end of self-suction tank is provided with sealing device, the middle of sealing device is equipped with pipeline, the bottom of pipeline is equipped with fixing device, the right end of fixing device is provided with ground tank, the upper end of ground tank is equipped with nitrogen pressure exhaust pipeline device.The application is fixed on the upper end of steam jacket heat tracing by outer frame, then connects steam pipe line by the pipe joint of right end, exhausts gas in ground tank to expansion pipe, carries out gas expansion, exhausts the gas after completion of expansion to mixing chamber, makes it mixed jet pump, then is discharged by nozzle, without manual filling pump.Again by the pipeline cavity of through frame inner cavity through connecting pipeline.

The utility model relates to the technical field of self-priming centrifugal pumps, in particular to a jet type self-priming centrifugal pump which comprises a driving part, a transfer mechanism arranged on the driving part, a pressure reduction and drainage mechanism arranged in the transfer mechanism and a turbine water suction mechanism arranged in the pressure reduction and drainage mechanism. The transfer mechanism comprises an outer bin and a sealing column head movably installed in a hole in the outer end of the outer bin. A bin body structure of a traditional integral structure is arranged to be the transfer mechanism and the pressure reduction and drainage mechanism which are of a quick-assembly structure, and the turbine water absorption mechanism capable of being passively separated is arranged in the pressure reduction and drainage mechanism, so that when the pump body is used for a long time and clogging or impeller damage exists, the turbine water absorption mechanism can be quickly separated from a transmission shaft in a motor, and the pump body is prevented from being damaged. At the moment, the pressure reducing and water draining mechanism can quickly take out the separated turbine water absorbing mechanism, and at the moment, the device can clean and quickly maintain all structures of the impeller and the inner cavity of the pump body without tedious loading and unloading operation.

The application discloses a sewage collection system for dispersed emission sources 2 O processing linkage system and processing method, the linkage system comprises: sewage pretreatment and pipe network collection system, A 2 O processing system and discharge system. The application solves the sewage collection problem caused by complex terrain in the sewage collection range by adopting negative pressure collection technology, improves the sewage collection efficiency, creatively applies the air stripping technology, the Venturi technology and the siphon technology to the sewage process, and only needs a self-priming pump to realize the sewage collection and A 2 O process of sewage lifting, sludge and water backflow and oxygenation; the Venturi jet device directly performs jet aeration on the aerobic tower, reduces the dependence on high-energy consumption mechanical aeration blower, avoids resource waste and material loss; meanwhile, the water flow and dissolved oxygen distribution of the reaction tank are optimized, natural circulation is formed between the aerobic tower and the anoxic tower through the density difference, no additional power is needed, the energy consumption is reduced, the denitrification and phosphorus removal process is promoted, and the treatment efficiency is significantly improved.

This invention discloses a self-priming discharge pump for chemical neutralization tanks, comprising a pump housing, a pump body fixedly connected to the top of the pump housing, an inlet pipe fixedly connected to one side of the pump housing, a deepening pipe fixedly connected to one side of the inlet pipe, an end of the deepening pipe away from the inlet pipe fixedly connected to one side of the pump housing, a speed reduction block fixedly connected to the bottom of the pump housing, several sets of speed reduction through holes opened on both sides of the speed reduction block, a filter tank mounting seat provided on one side of the speed reduction block, the filter tank mounting seat placed inside the pump housing, and an outlet pipe fixedly connected to the end of the pump housing away from the inlet pipe. This self-priming discharge pump for chemical neutralization tanks, through the cooperation of components such as the outlet pipe, filter tank mounting seat, inlet pipe, deepening pipe, and speed reduction block, achieves wastewater speed reduction, thereby improving its service life.

The present disclosure provides a jet pump, including a pump body provided with a water inlet and a water outlet. A jet tube and an impeller are provided in the pump body. Fluid passes through the water inlet, the jet tube, the impeller, and the water outlet in sequence. At least one flow-increasing channel is provided at the outer periphery of the jet tube. The flow-increasing channel is provided around the outside of the jet tube. The flow-increasing channel is in communication with the water inlet and an inlet of the impeller. Fluid passing through the flow-increasing channel is thrown to the pressurizing chamber by the impeller. The flow-increasing channel is provided with a valve core. The movement of the valve core in the flow-increasing channel causes the flow-increasing channel to be opened or closed. A cavitation problem is relieved by providing the flow-increasing channel, and the present disclosure has a simple production process and a low production cost.

The utility model discloses a self-priming pump with a liquid storage function, which relates to the technical field of self-priming pumps and comprises a mounting base and a self-priming pump body, the self-priming pump body is fixedly connected to the top end of the mounting base, and a liquid storage tank is fixedly connected to the top end of the mounting base. According to the self-priming pump, impurity particles with different sizes can be filtered and blocked through the filtering and blocking mechanism by using the first filter screen and the second filter screen, so that the impurity particles are prevented from entering the self-priming pump body to cause blockage or damage to the self-priming pump body; meanwhile, the first filter screen and the second filter screen are driven to do reciprocating motion through cooperation of elastic telescopic motion of the spring and the movable rod and water flowing influence, attachment of impurity particles is reduced, blockage is reduced, and smoothness is kept; according to the self-priming pump, impurity particles in the liquid storage tank body can be cleaned through the rotary cleaning mechanism by means of the scraping plate and the cleaning brush body, the impurity particles are prevented from staying in the liquid storage tank body, and therefore the situation that the amount of pre-filled liquid is reduced due to the fact that the liquid storage space is occupied is avoided, and normal use of the self-priming pump body is not prone to being affected.

A composition useful for priming a heart-lung bypass machine is provided. The composition contains polyethylene glycol polymers (PEG) with a molecular weight of 18,000-100,000 Da at a concentration of 5-30% w / v; and water, wherein the PEG with a molecular weight of 18,000-100,000 Da is dissolved or dispersed in said water. The composition may further include PEG with a molecular weight of 1,000-10,000 Da at a concentration of 1-30% w / v dissolved or dispersed in said water. Methods for priming a heart-lung bypass machine and treating cardiopulmonary bypass injury are also provided.

The utility model discloses a protection device for water shortage of a water pump, and relates to the technical field of water pump protection. A water inlet pipe is mounted on one side of the pump body, an alarm mechanism is mounted at one end of the water inlet pipe and comprises a water storage bin connected with the water inlet pipe, a window is mounted on one side of the water storage bin, a liftable water floating part is mounted at the top end of the water storage bin, an alarm is mounted at the top end of the outer side of the water storage bin, and the water floating part is used for triggering the alarm. A water conduit is installed on one side of the water storage bin, and valves are installed on the water inlet pipe and the water conduit. The alarm mechanism is installed on the side close to the water pump, and the alarm and the pressing block used for triggering the alarm are both arranged on the outer side of the water storage bin away from water, so that the synchronism of completion of water pumping and triggering of the water pump protection alarm is ensured, and the service life of the device is prolonged.

An inducer (128) may include a hub (136) having an outer lateral surface (144) extending from a leading end (146) to a trailing end (148), the outer lateral surface (144) having a leading surface section (150) having a first cylindrical shape, an intermediate surface section (154) having a frustoconical shape, and a trailing surface section (152) having a second cylindrical shape. The inducer (128) may include main blades (140) extending circumferentially along a first helical path over the leading surface section (150), the intermediate surface section (154), and the trailing surface section (152), the first helical path having an increasing helix angle. The inducer (128) may additionally include splitter blades (142), each of the splitter blades (142) located circumferentially between two of the main blades (140), respectively.

The utility model discloses an auxiliary horizontal pump upper water measuring tank, which comprises an upper water measuring tank, the top of the upper water measuring tank is provided with a water injection pipeline and an exhaust one-way valve, one end of the water injection pipeline far away from the upper water measuring tank is integrally and fixedly provided with a second connecting flange, and the bottom of the upper water measuring tank is provided with a drainage pipeline and a slag removal pipeline. And an opening and closing valve is installed on the right side of the slag removal pipeline, a first connecting flange is integrally and fixedly installed at the end, away from the upper water measuring tank, of the drainage pipeline, and supporting legs are welded to the outer surface of the upper water measuring tank. According to the utility model, the upper water measuring tank and the drainage pipeline are arranged, the upper water measuring tank is filled with water, and the water enters the drainage pipeline under the action of gravity to be in contact with the water pump, so that a continuous liquid column can be provided for a pump inlet before the pump is started; the problem that the horizontal pump cannot be started up due to large height difference of an inlet pipeline and gas storage is effectively solved, and normal flow can be quickly and reliably established by the pump.

Systems and methods described herein provide a belt drive with necessary power transfer for a vacuum priming system while enabling simplified belt replacement. In one implementation, an auxiliary drive system for driving a vacuum pump in a pump priming system is provided. The auxiliary drive system includes a drive sprocket attached to a drive shaft of a main pump, an auxiliary sprocket attached to a shaft of the vacuum pump, an idler pulley mounted to an engine bracket of the main pump, and an endless drive belt having an inner side and an outer side. The idler pulley causes the endless drive belt to engage the drive sprocket and rotate the auxiliary sprocket without the endless drive belt encircling the drive sprocket.

The utility model discloses a double-suction sealing-free self-sucking pump which comprises a pump body, a water inlet end is fixedly arranged on one side of the surface of the pump body, a water outlet end is arranged on the side, away from the water inlet end, of the pump body, a flow dividing mechanism is arranged on one side of the water inlet end, and the flow dividing mechanism comprises a flow dividing bin, a rotating shaft, a guide plate, an electric push rod and a rotating arm. A flow dividing bin is arranged on one side of the water inlet end, a rotating shaft is movably arranged in the middle of the inner side of the flow dividing bin through a bearing, and a guide plate is fixedly arranged on the outer side surface of the rotating shaft. The double-suction sealing-free self-sucking pump is good in using effect, the flow dividing mechanism is arranged at the liquid inlet end of a traditional double-suction sealing-free self-sucking pump, the flow channel on one side can be closed at any time when needed, water can enter the flow channel on one side at the moment, the filter element of the flow channel on the other side can be detached, replaced and cleaned, and therefore the overall water pumping efficiency of the device cannot be affected; therefore, the use effect of the device can be improved.

The application discloses a hot water supply device and a water purifying and heating integrated device, and relates to the technical field of water treatment. The hot water supply device comprises a water storage device with a water outlet, a heating element capable of heating water in the water storage device, a water pump, an inlet end of the water pump being communicated with the water outlet, and an exhaust structure on a channel upstream of an impeller of the water pump and downstream of the water outlet, the exhaust structure being capable of communicating the inside of the channel with the atmosphere. The application can solve the problem that when the water storage device discharges hot water through the water pump, the water pump is blocked by air, and the water flow is reduced.

The utility model provides a large-displacement vacuum auxiliary self-priming pump which comprises a buffer box, the buffer box is connected with a vacuum unit and a drainage unit, the drainage unit comprises a water inlet pipe, the water inlet pipe is connected to a water inlet of the buffer box through a first flange, and a water outlet is formed in the side, corresponding to the water inlet, of the buffer box. An n-shaped bent pipe is arranged between the water inlet and the water outlet, one end of the bent pipe is connected with the water inlet, and the other end of the bent pipe is connected with the water outlet. The top of the bent pipe is communicated with a buffer tank, the water outlet is connected with the water inlet end of a centrifugal self-priming pump through a second flange, the water outlet end of the centrifugal self-priming pump is connected with a water storage tank through a third flange, and the top of the water storage tank is connected with a water outlet header pipe. The top of the buffer tank is connected with an exhaust pipe, and the exhaust pipe penetrates out of the top of the buffer tank and is connected with a vacuum unit through an exhaust branch pipe. When the large-displacement vacuum auxiliary self-sucking pump works, the vacuum unit and the drainage unit work cooperatively, so that the drainage efficiency of the drainage unit is improved.

The present application relates to the field of centrifugal pump, concretely is a kind of horizontal self-priming centrifugal pump, including bracing plate, the bracing plate is used to support the support treatment of overall equipment;Water suction mechanism, the water suction mechanism is used to overflow when entering water, handle part water flow;Pressure relief mechanism, the pressure relief mechanism is used to when water pressure in pump is too large, the water flow treatment of discharge;Centrifugal mechanism, the centrifugal mechanism is used to produce rotation to water flow, and make water flow produce centrifugal force and flow out outward;The top of the bracing plate is fixedly connected with pump shell, the top of the pump shell is fixedly connected with water outlet pipe, the horizontal self-priming centrifugal pump, by the movement of half-open impeller towards the inside of water seal component, so that the blade on half-open impeller will be more and more close to the vertical plane where regulation block is located, thus with the rotation of half-open impeller, part centrifugal water flow will impact on regulation block, thereby play the role of reducing the flow and flow rate of water flow from water outlet pipe.

The invention relates to the technical field of self-priming pumps, and discloses a self-priming pump with an ultrahigh suction height, which comprises a self-priming pump body, the self-priming pump body comprises a water inlet pipe and a water outlet pipe, a self-priming chamber is formed on the inner side of the self-priming pump body, after the self-priming pump body enters an extraction working state, an operator can slowly rotate a rocking wheel, and the self-priming pump body is driven to rotate by the rocking wheel; the moving part is gradually reset to the initial arrangement position; and then, the effective accommodating space in the self-suction chamber is restored, and more media can be continuously filled into the self-suction chamber, so that the negative pressure vacancy formed by the previous displacement of the moving part is filled. By dynamically adjusting the volume of the cavity of the self-suction chamber and under the synergistic effect of the impeller piece, the space of the fixed cavity of the self-suction chamber can be flexibly switched between the two working conditions of'residual liquid filling 'and'formal extraction', the inherent defects of a traditional fixed-volume self-suction chamber are effectively overcome, and the problem that a large-volume self-suction chamber is low in efficiency in the residual liquid filling stage is effectively solved; and the operation stability of the small-volume self-suction chamber in the official extraction stage is insufficient.

This utility model discloses an inverted drainage pump with improved self-priming performance, comprising a pump cover component, a pump casing component, and a rotor-impeller assembly. The impeller cover of the impeller body component has an impeller suction port at its center, with blades extending into the axial projection position of the impeller suction port, and the blades forming an inclined portion at the axial projection position of the impeller suction port. The rotor chamber of the pump casing component is equipped with an exhaust channel connecting to the outside. When water enters through the inlet of the pump cover component, the air in the rotor chamber of the pump casing component is driven by pressure and discharged to the outside along the exhaust channel. This utility model mainly solves the problem of how to improve the self-priming performance of an inverted drainage pump. When the liquid medium is sucked into the impeller chamber, the air retained in the rotor chamber is driven by pressure and discharged to the outside along the exhaust channel, resulting in a higher negative pressure in the impeller chamber and rotor chamber, thereby improving the self-priming performance of the inverted drainage pump.

A fluid management system including a fluid management console and a fluid cassette configured to be received within the fluid management console. The console may comprise a housing, a controller housed within the housing, an inflow pump disposed within the housing, and a user input interface. The fluid cassette may comprise a housing defining a fluid pathway therethrough, an inflow tubing extending from the housing, and an outflow tubing extending from the housing. The controller of the fluid management console may be configured to perform a first stage of a priming procedure in response to a user input at the user input interface and a second stage of the priming procedure in response to a pressure drop within the fluid pathway of the fluid cassette.

The application provides a high-suction self-priming centrifugal pump, comprising a pump body and an impeller, the pump body has a volute inside, the impeller is located in the volute, and the impeller is driven to rotate by a power device; a water storage space is arranged at the outlet of the pump body, the outlet of the volute extends into the water storage space through a flow guide channel; an air-liquid mixing device is arranged between the inlet of the volute and the inlet of the pump body, air on the inner wall of the inlet is sucked into the air-liquid mixing device by using the pressure difference formed in the liquid flow process; a circulation channel is arranged in the volute and communicates with the air-liquid mixing device, and is used for forming a backflow jet flow; the backflow jet flow is used for carrying out secondary shearing and mixing on the air-liquid mixed flow. The whole design is simple, the manufacturing and maintenance costs are low, the high-suction self-priming ability can be maintained under complex working conditions, and the defects of slow exhaust, difficult start and limited suction of the existing self-priming centrifugal pump can be effectively overcome.

To provide a method for starting other submersible pumps while preventing rotation of an impeller of a submersible pump that is not in operation among a plurality of submersible pumps connected in series.SOLUTION: A method comprises: starting a submersible pump 1A arranged in a suction container 2A of a pump device 100A; transferring liquefied gas to a suction container 2B of the pump device 100B through a flow path switching device 5A in the suction container 2A; passing the liquefied gas through the flow path switching device 5B in the suction container 2B while bypassing a submersible pump 1B arranged in the suction container 2B; and then starting the submersible pump 1B.SELECTED DRAWING: Figure 5