45results about How to "Increase flushing pressure" patented technology

Provided is an improved lavage syringe. The improved lavage syringe includes a drip bucket, an infusion adjusting clamp and a tee pipe, a cavity is formed in the inner side of the drip bucket, the upper end of the drip bucket is provided with a puncture pipe, the lower end of the puncture pipe is hermetically connected to a medical two-way valve, the lower end of the medical two-way valve is hermetically connected to the cavity, the lower end of the drip bucket is provided with a first lavage pipe, the infusion adjusting clamp is installed on the outer side of the middle end of the first lavage pipe, the tee pipe is hermetically connected to the lower end of the first lavage pipe, the tee pipe includes a main pipe, the outer side of the middle end of the main pipe is hermetically connectedto a branch pipe, a first narrow throat is formed in the upper end of the branch pipe, the lower end of the first lavage pipe is hermetically connected to the outer side of the first narrow throat, the left end of the main pipe is provided with a dosing pipe, the dosing pipe is connected to a syringe body, the syringe body is installed on a syringe pump, a second narrow throat is formed in the right end of the main pipe, the outer side of the second narrow throat is provided with one end of a second lavage pipe, the outer side of the other end of the second lavage pipe is connected to one endof a connecting pipe in a clamping mode, and the other end of the connecting pipe is connected to a syringe pipe in a clamping mode.

The invention discloses a flushing device for a mechanical seal of a centrifugal pump, and belongs to the technical field of centrifugal pumps. The flushing device comprises a flushing pipe connected to the centrifugal pump; the liquid feeding end of the flushing pipe is connected with the outlet end of the centrifugal pump; the liquid discharging end of the flushing pipe is connected with the mechanical seal of the centrifugal pump; the flushing device is characterized in that the flushing pipe is connected with a tubular filter, a pressure gauge and a throttling orifice plate; the tubular filter is close to the outlet end of the centrifugal pump; the throttling orifice plate is close to the mechanical seal of the centrifugal pump; a first stop valve and a second stop valve are arranged on the flushing pipe; the first stop valve is positioned between the outlet end of the centrifugal pump and the tubular filter; and the second stop valve is positioned between the pressure gauge and the throttling orifice plate. The flushing device can both achieve a good cooling effect on the mechanical seal and prevent particle impurities from being deposited on the sealing surfaces of movable and fixed rings, thus effectively protecting the sealing surfaces of the movable and fixed rings, relieving wear and enhancing the sealing effect; and therefore, normal and stable operation of the centrifugal pump is guaranteed.

The invention discloses an automatic car washing system, which structurally comprises a bottom plate, a frame body and a control box. The bottom plate is in the form of a hollow-square-shaped cavity.The interior of a bottom plate frame is divided into a plurality of water filtering plate containing cavities through transverse square pipes and longitudinal square pipes. A circle of baffle is arranged at the bottoms of the water filtering plate containing cavities. Water filtering plates are clamped on the baffle. Two corresponding sides of the bottom plate are vertically connected with the frame body. The frame body is in the form of a cavity and is communicated with the inner cavities of the bottom plate, the transverse square pipes and the longitudinal square pipes. A plurality of waterspraying holes are formed in a transverse square pipes of the frame body. A plurality of through holes are formed in the transverse square pipes. One end of the bottom plate is connected with a waterinlet pipe. The free end of the water inlet pipe is connected with a water pump in a control box through a hose. The control box controls the opening and closing of the water pump through signals by aremote controller. The system automatically cleans an engineering car without the manual operation. Meanwhile, the cleaned car does not need to be stopped. The system is compact in time, thorough incleaning and water-saving.

The invention provides a boiler flue gas recovery heater. The boiler flue gas recovery heater comprises a support and a shell fixed to the support. Two sealing plates are fixed in the shell. The two sealing plates partition an inner cavity of the shell into a first cavity, a second cavity and a third cavity in sequence from left to right. Heat conducting pipes are horizontally arranged in the second cavity. The two ends of the heat conducting pipes are located in the first cavity and the third cavity correspondingly. A water inlet pipe and water discharging pipes are fixed in the first cavity,the left ends of the water discharging pipes communicate with the water inlet pipe, and the right ends of the water discharging pipes are inserted into the left ends of the heat conducting pipes correspondingly. The left and right ends of the heat conducting pipes are each in the shape of a circular pipe, the middles of the heat conducting pipes are each in the shape of a circular cone, the maximum inner diameter and the minimum inner diameter of the middle of each heat conducting pipe are equal to the inner diameter of the left end and the inner diameter of the right end of each heat conducting pipe correspondingly, the outer diameter of each water discharging pipe is smaller than the inner diameter of the left end of each heating conducting pipe, and the inner diameter of each water discharging pipe is greater than the inner dimeter of the right end of each heat conducting pipe. The boiler flue gas recovery heater further comprises a water pump, an outlet of the water pump communicates with the water inlet pipe, and two water discharging outlets are formed in the bottom of the shell and communicate with the first cavity and the third cavity correspondingly. The boiler flue gas recovery heater provided by the invention has the advantage that the heat conducting pipes are convenient to clean.

The invention relates to an improved structure applicable to a water tank. The improved structure comprises a water tank body and a water tank cover covering the water tank body. A drainage valve is arranged in the water tank body and controls drainage through a key arranged on the water tank cover, the drainage valve is integrally elliptically tubular in shape with the lower portion connected with an inserting socket, the lower end of the inserting socket necks down to form an elliptical inserting tube, grooves are arranged in the inserting tube, sealing rings are arranged in the grooves, an elliptical guiding drum matched with the inserting tube is arranged at the bottom wall of the water tank body, the drainage valve is fixedly connected in the water tank body by being inserted in the guiding drum through the inserting tube, sealing is formed by the sealing rings, and the lower bottom edge of the guiding drum protrudes out of the bottom wall of the water tank body to be connected with a matched elliptical drainage tube. By the water tank with the improved structure, effects of high flushing pressure and clean brushing can be guaranteed, the water tank can be thinned to 6cm to have the space saved, mounting and subsequent maintenance are facilitated, and attractiveness and practicability are achieved.

The invention discloses a tube head connector for a medical automatic cleaner. The tube head connector comprises a hollow cylindrical main connecting tube. A hollow connecting screw tube is arranged at the tail end of the main connecting tube. A damping spring is arranged at the head of the main connecting tube. A fixing sleeve ring is arranged at the head of the damping spring. A locking nut is arranged on the connecting screw tube. The damping spring is connected with the main connecting tube and the fixing sleeve ring in a welded mode respectively. Through The damping spring, the main connecting tube and the fixing sleeve ring which are connected in a welded mode, overall strength is high, a flexible metal tube in the damping spring can be protected, impulse vibration of the flexible metal tube is greatly reduced, and accordingly, reliability of the connector is improved.

The invention provides a tooth flusher which comprises a temperature control base, a liquid injection bottle, a driving control part and a tooth washing assembly, the liquid injection bottle is connected to the temperature control base, the temperature control base is used for heating liquid in the liquid injection bottle, the driving control part is connected to the top of the liquid injection bottle, the liquid injection bottle is provided with a liquid outlet pipe, and the liquid outlet pipe is connected to a bottle opening of the liquid injection bottle; at least one liquid injection hole is formed between the liquid outlet pipe and the bottle opening, a first liquid conveying channel is arranged at the bottom of the driving control part and connected with the liquid outlet pipe, the driving control part is used for conveying liquid in the liquid injection bottle to the tooth washing assembly, the tooth washing assembly comprises a guide pipe and an outlet nozzle, and the inner diameter of the guide pipe is larger than that of the outlet nozzle. The structural layout of different function realization areas is reasonable, the temperature control base is not in direct contact with liquid in the liquid injection bottle, and the hidden danger of electric leakage is avoided; the temperature control base, the liquid injection bottle and the driving control part can be independently taken out through disassembly and are convenient to maintain; by reducing the inner diameter in the outlet nozzle, the flow area is reduced, and the flushing pressure is improved.

An improved lavage syringe, including a dripping funnel, an infusion adjusting clip and a three-way tube. The inside of the dripping funnel is provided with a cavity, the upper end of the dripping funnel is provided with a puncture tube, and the lower end of the puncture tube is sealed and connected with a medical two-way valve. The lower end of the valve is in sealing connection with the cavity, the lower end of the dripping funnel is provided with a first lavage tube, the infusion adjustment clip is installed outside the middle end of the first lavage tube, the three-way tube is sealingly connected to the lower end of the first lavage tube, and the three-way tube includes The main pipe is sealed with a branch pipe on the outside of the middle end of the main pipe. The upper end of the branch pipe is provided with a first constriction. Syringe, the syringe is installed on the syringe pump, the right end of the main pipe is provided with a second constriction, one end of the second lavage tube is provided outside the second constriction, and the other end of the second lavage tube is snapped to the outside of the connecting tube One end and the inner side of the other end of the connecting pipe are clamped with an injection pipe.

The invention relates to a quick flushing method for replenishing water before pumping and draining water after pumping of an air conditioner water pipeline. The method comprises the following steps that 1, a flushing loop can be connected after pressure testing of a pipeline is completed, and a flushing temporary piping is arranged; 2, a temporary water replenishing pump is used for replenishing water into the pipeline, exhausting is completed, and the temporary water replenishing pump is stopped; 3, a formal pump is started to carry out closed circulating flushing, the pressure is controlled to be 0.4-0.5 Mpa during circulating flushing, continuous flushing is carried out for about 1.5 hours, and the pump can be temporarily stopped to clean a filter for 2-3 times in the process; and 4, a drainage valve is opened, meanwhile, the temporary water replenishing pump is opened. The method of conducting water supplementing and drainage at the same time is adopted, the flushing pressure is controlled to be 0.5 Mpa, it is guaranteed that the water supplementing amount is larger than or equal to the water displacement, and the pipeline flushing pressure is high, the flow speed is high, the flushing time is short, and the flushing effect is good.

The invention discloses a seawater rotational-flow filtering and air-water hybrid flushing device for flushing and removing sand of a ship flap rudder bearing. The bottom of a seawater header pipe is communicated with a sea chest; the upper part of the seawater header pipe is connected with a water inlet of a seawater pump; the water outlet of the seawater pump is connected with a water inlet at the top of a fine taper pipe type hydrocyclone; the bottom of the fine taper pipe type hydrocyclone is a fine taper end; the top of the fine taper pipe type hydrocyclone is connected with a filter with a super filter screen through a pipeline; the filter with the super filter screen is connected with a Venturi pipe injector; an air source inlet of the Venturi pipe injector is connected with a high-pressure air bottle; the high-pressure air bottle is connected with an air compressor; the outlet of the Venturi pipe injector is connected with a screw coupling; the screw coupling is connected with a hollow flap rudder column which is provided with a bearing; and high-pressure air and cleaned flushing seawater are mixed by the Venturi pipe injector to increase flow speed and pressure, so that mud and sand in the flap rudder bearing is flushed, and a sand-removing effect is good.

The invention discloses a urinal spout and a urinal. The urinal spout comprises a spout body. The spout body is provided with a rectification channel and a flow limiting opening communicated with the rectification channel. The urinal spout further comprises at least one flow deflector. The flow deflectors are provided with flow guide faces capable of scattering water flow. The flow deflectors are formed or assembled on the spout body. The flow limiting opening of the spout body corresponds to the flow guide faces of the flow deflectors so that washing water flowing out from the flow limiting opening can rush to the flow guide faces. The urinal comprises a urinal body and the urinal spout. According to the urinal spout and the urinal, water flow is rectified through the rectification channel to reduce energy loss, the washing pressure is increased through the flow limiting opening, the flow deflectors are used in cooperation so that water can evenly flow out, washing is facilitated, it is guaranteed that water flow cannot be scattered outside when the water pressure is high and washing capacity is sufficient when the water pressure is low, airtightness is good, and blockage is unlikely to happen.