28 results about "Circulating pump" patented technology

A thermal energy recovery device includes: a circulating flow path connected to a heater, an expander, a condenser and a circulating pump for circulating a working medium; a bypass valve in a bypass path connecting the upstream side region and the downstream side region of the expander in the circulating flow path; a power recovery machine connected to the expander; a circulating pump sending the working medium condensed in the condenser to the heater; a cooling medium pump sending a cooling medium to the condenser; an upstream side sensor detecting the pressure/temperature of the working medium on the expander upstream side in the circulating flow path; and a controller controlling the bypass valve and the cooling medium pump. The controller opens the bypass valve after stopping the circulating pump, and drives the cooling medium pump if the pressure/temperature of the working medium on the expander upstream side exceeds a threshold.

The invention discloses a containment pit strainer overall performance experimental system and method; the system comprises: a containment pit simulation tank having a medium outlet and a medium reflow inlet; a strainer module mounted in the containment pit simulation tank to filter an experimental medium flowing out of the medium outlet; a circulating pump connected to the medium outlet through a pipeline; an experimental branch including a fuel component simulation provided with a fluid inlet at one end and a fluid outlet at the other end, wherein in the fuel component simulation, the fluid inlet is communicated with the fluid outlet, the fluid inlet is connected to the circulating pump through a pipeline, and the fluid outlet is connected to the medium reflow inlet through a pipeline. The containment pit strainer overall performance experimental system and method allow operating environment of a pit under long-term cooling recirculating to be simulated under different scrap quantities, chemical environments and temperatures, the behaviors, such as hydraulic characteristics and scrap blocking characteristics, of the containment pit strainer and reactor core fuel component are acquired, and the system and method are highly universal and comprehensive and are simple to control and perform.

The invention discloses a siphon circulation, contraflow heat regeneration and vapor compression distillation device, which utilizes siphon circulation to replace a circulation pump so as to drive feed liquid, and condensation latent heat can be cyclically recovered, so that the investment and the power consumption of the circulation pump are saved; contraflow heat regeneration and climbing-film evaporation of the feed liquid are commonly driven by the siphon circulation and outer pressure of a pipeline, so that evaporation latent heat is provided for generating secondary steam; large-temperature rise and small-temperature difference contraflow heat regeneration is adopted, so that not only is shell-pass evaporation pressure increased to a large extent, but also tube-pass condensation pressure is reduced to a large extent, the pressure difference, the emission and the power consumption of a water vapor compressor are reduced to a large extent, and the power consumption per ton water is reduced to 5 to 8 kW*h/t to a large extent; the falling head of the siphon circulation, contraflow heat regeneration and vapor compression distillation device is fully utilized, so that a condensed water discharging pump and a feed liquid discharging pump are omitted.

The invention discloses a coal tar all-fraction liquid-phase hydrogenation system and method. The system comprises a liquid-phase reactor and a hydrogen dissolver, wherein an inlet of the hydrogen dissolver is connected with a coal tar pretreatment device and a hydrogen conveyor; an outlet of the hydrogen dissolver is connected to a lower end inlet of liquid-phase reactor; a reaction generation product outlet on the top end of the liquid-phase reactor is connected with a hot high-pressure separator; one outlet of the hot high-pressure separator is connected with a lower end inlet of the liquid-phase reactor through a circulating pump; the liquid-phase reactor comprises a liquid-phase reactor wall, hydrogen supplementing devices and a plurality of catalyst bed layers; the plurality of catalyst bed layers are arranged inside the liquid-phase reactor from bottom to top; and each hydrogen supplementing device is arranged between every two adjacent catalyst bed layers and communicated with the hydrogen conveyor. The coal tar all-fraction liquid-phase hydrogenation system and method have the advantages of reasonable design, reliable technical process and stable safety performance, greatly enhance the inner space utilization ratio of the liquid-phase reactor, reduce the equipment investment, and effectively enhance the reaction product yield.

The invention provides a mine new energy comprehensive utilization system and a control method thereof. The mine new energy comprehensive utilization system comprises a new energy collection module, aPLC, an energy utilization module and a heat-storage water tank; the new energy collection module is connected with the heat-storage water tank, and the heat-storage water tank is connected with theenergy utilization module; the new energy collection module comprises a groundwater heat collection unit; the groundwater heat collection unit comprises a well water pump, the well water pump is connected with a plate heat exchanger, the plate heat exchanger is connected with a first circulating pump, and the first circulating pump is connected with a first water source heat pump; the heat-storagewater tank is connected with the first water source heat pump; the energy utilization module comprises an air conditioner unit and a heating radiator unit; the heat-storage water tank is connected with an air conditioner circulating pump and a secondary heating unit, the air conditioner circulating pump is connected with the air conditioner unit, the secondary heating unit is connected with the heating radiator unit, and the heating radiator unit is further connected with the heat-storage water tank; and the PLC is connected with the heat-storage water tank, the well water pump, the first circulating pump, the first water source heat pump, the air conditioner circulating pump and the secondary heating unit.

The invention relates to the field of corrosive foil machining and particularly discloses a corrosive foil cleaning device. The corrosive foil cleaning device comprises a shell, a feeding port, a discharging port, a lifting plate and a circulating pump; the lower surface of the lifting plate is provided with a plurality of supports at equal intervals; horizontal rotating shafts are rotationally connected to the supports through bearings; the outer sides of driving rollers are each fixedly sleeved with a layer of brush sleeve; a plurality of sprinkling pipes are fixedly installed on the lower surface of the lifting plate; an arc-shaped cleaning groove is arranged below each driving roller; center shafts of the cleaning grooves coined with the rotating shafts; the shell is internally filledwith cleaning liquid; the bottom of each cleaning groove is provided with an opening; and a brush plate the same as the corresponding cleaning groove in radian is arranged in each opening. According to the corrosive foil cleaning device, the upper surface of corrosive foil is contact with the brush sleeves on the surfaces of the driving rollers, deionized water is jetted onto the upper surface through the sprinkling pipes so that the upper surface of the corrosive foil can be washed, the lower surface is in contact with bristle layers on lower brush plates, impurities of the surface of the corrosive foil is brushed away due to vibration of the brush plates, and cleaning treatment is performed on the upper surface and the lower surface of the corrosive foil at the same time.

The invention relates to the technical field of cultivation equipment, and specifically relates to a chicken brooding house heating system, including a warming furnace, a water tank, a radiating tank, a blower, and a temperature control device. A hot water outlet of the warming furnace is connected with a water outlet pipe. The water outlet pipe is divided into a water return pipe and a first circulating pipe. The free end of the water return pipe is communicated with the water inlet of the water tank. The free end of the first circulating pipe is communicated with one end of the radiating tank. A hot water inlet of the warming furnace is connected with a water inlet pipe. The water inlet pipe is provided with a circulating pump. The water inlet pipe is divided into a water supply pipe and a second circulating pipe. The free end of the water supply pipe is communicated with the water outlet of the water tank. The free end of the second circulating pipe is communicated with the other end of the radiating tank. The water return pipe and the water supply pipe are provided with valves. The radiating tank and the blower are arranged in a chicken brooding house, and the blower blows toward the radiating tank. The temperature control device comprises an indoor temperature control switch and an indoor temperature probe in the chicken brooding house. The indoor temperature control switch is electrically connected with the indoor temperature probe and the blower.

The invention discloses a device and a method for fermenting organic matters. The device comprises a feeding device, a first reaction device, an extruding device, a high-solid-content discharging device, a low-solid-content discharging device, a first circulating pump, a second reaction device, a first backflow device, a first discharging device and a collecting device, wherein the extruding device is arranged in the first reaction device, and the first circulating pump is arranged between the low-solid-content discharging device and the second reaction device; the first backflow device is arranged between the first reaction device and the second reaction device, and the first discharging device is arranged at the second reaction device. Through the circular flow of a microbial community remained and fermented in the second reaction device and materials between the first reaction devices, the organic materials can be very sufficiently acidified within a short time; compared with a traditional anaerobic fermentation technology, the method has the advantages that the organic matters are more sufficiently decomposed, and the biogas production is higher.

The invention relates to a method for arranging a circulating pump in a fluidized bed hydrogenation device and belongs to the technical field of petrochemical engineering and coal chemical industry. The method for arranging the circulating pump in the fluidized bed hydrogenation device disclosed by the invention comprises the following steps: (1) removing solid residues from inferior heavy oil and dehydrating; (2) mixing the inferior heavy oil treated in the step (1) with hydrogen, and feeding the mixed gas into a fluidized bed hydrogenation reactor; (3) feeding the reaction product obtained in the step (2) into a high-pressure hot separator for flashing so as to obtain high fraction hot gas and high fraction hot oil; and (4) delivering the high fraction hot gas and one part of the high fraction hot oil obtained in the step (3) to a downstream treatment facility, pressurizing the other part of the high fraction hot oil by a circulating pump, and feeding to the bottom of the first fluidized bed reactor. According to the method disclosed by the invention, the investment of the device is reduced, the interior part design of the reactor is simplified, the mounting height of the reactor is reduced, and the engineering problem that gas etching of the circulating pump is easily caused is solved.

The invention discloses a method for removing low-boiling-point substance in polyether. Polyether with low-boiling-point substance to be removed is added into a stirring kettle and then heated, the material is circulated to the stirring kettle through a circulation pump by passing through a static mixer and a packer tower, the polyether and nitrogen which is introduced into the bottom of the static mixer and the upper portion of the packer tower are sufficiently mixed, the low-boiling-point substance in the polyether is dispersed into the nitrogen, finally, the upper portion of the stirring kettle is vacuumized, the nitrogen is pumped out, and meanwhile the low-boiling-point substance is removed. The low-boiling-point substance removing efficiency is high.

The invention discloses a disinfection device. The disinfection device comprises a gas system and a water system which are matched with each other, the gas system comprises a low-temperature plasma generator, the low-temperature plasma generator ionizes air to generate gas of oxidizing ions, the water system comprises a circulating pump and a hydrodynamic cavitation device which are connected witheach other, the circulating pump drives water flow and provides pressure for the hydrodynamic cavitation device, the hydrodynamic cavitation device is used for receiving the water flow transmitted bythe circulating pump, receiving the oxidizing ion gas generated by the low-temperature plasma generator, mixing the water flow and the oxidizing ion gas to form micro-nano sparkling water rich in oxidizing particles and then emitting the micro-nano sparkling water. The purposes of improving the disinfection efficiency, ensuring the disinfection quality and ensuring the safety and sanitation of adisinfected product are achieved.

The invention discloses an automatic detection and control system for a spiral symmetrical flow anaerobic reactor. The automatic detection and control system comprises a water inlet pump of a water supply system, an electric water supply regulating valve of the water supply system, an industrial camera, a driver, a gas flow control valve, four temperature sensors, a water supply electric regulating valve of a reactor, a water inlet pump of the reactor, two circulating pumps, five electric regulating valves, a pH value sensor, an electric draining valve of the reactor and a controller controlling all said components. The controller transmits signals to a remote control center through a GPRS wireless transmission module and a base station. pH value is accurately detected and monitored in a reactor reaction system, and remote accurate control is carried out. Overflow of waste water or microbe through pipes in the reactor reaction system can be prevented, and liquid level of the water supply system of the reactor can be effective controlled.

The invention discloses an efficient air source heat pump device. The efficient air source heat pump device comprises a power supply mechanism, a heat dissipation mechanism, a semiconductor chilling plate, a first heat exchanger, a circulation pump, a heat exchange mechanism and a second heat exchanger; and the power supply mechanism is connected with the semiconductor chilling plate, the heat dissipation mechanism is arranged at the front end of the semiconductor chilling plate, the first heat exchanger is arranged at the rear end of the semiconductor chilling plate, the circulation pump, thefirst heat exchanger and the second heat exchanger are connected in sequence to form a circulation loop, and the second heat exchanger and a condenser of the air source heat pump exchange heat through the heat exchange mechanism. Compared with the prior art, solar photovoltaic power generation can be fully utilized for reducing the condensation temperature of the heat pump in summer, and semiconductor chilling can be fully utilized for improving the evaporation temperature of the heat pump in winter, so that the energy efficiency ratio of the heat pump is increased, a system is simple, frostdeposits in winter are reduced or eliminated, only a condenser of a conventional heat pump needs to be slightly modified, investment is small, and good application value is achieved.

The invention relates to a hot press machine for bamboo wood veneering and belongs to the field of plywood processing. The hot press machine comprises an upper supporting plate, a lower supporting plate, a rack and multiple layers of heating plates mounted between the upper supporting plate and the lower supporting plate. Conduction oil inlets/outlets are reserved in the two ends of the heating plate at each layer and connected with conduction oil manifold pipes fixed to the two sides of the rack. The conduction oil manifolds are connected with a heating device through a circulating pump to form a circulating pipeline. The hot press machine is characterized in that a filtering device is connected with the circulating pipeline in parallel or in series, and the service life of the heating plates in the hot press machine can be prolonged.

The objective of the present invention is to provide a boiler system for bath heating and hot water that is capable of performing heating and hot water preheating by using a single circulation pump for both without the need to separately include a circulation pump for heating and a circulation pump for hot water preheating. In order to achieve the above objective, the present invention provides a boiler system for both heating and hot water, comprising: a heat exchanging unit; a heating water channel connected between the heat exchanging unit and a place to be heated; a tap water supply pipe for supplying tap water to the heat exchanging unit; a hot water supply pipe for supplying hot water to a place requiring hot water from the heat exchanging unit; a hot water recirculation channel connected to the hot water supply pipe at a first branch point branched from one side of the heating water channel; a hot water bypass channel connected from the second branch point branched from the other side of the heating water channel to the tap water supply pipe; and a circulation pump disposed between the first branch point and the second branch point.

The invention provides an improved pump shaft connecting structure of a water circulating pump, which can effectively solve the problem that in the prior art, when a sleeve coupler is used for connecting a two-end pump shaft, the matching surface between the sleeve coupler and the two-end pump shaft is long, so that the installation is difficult in the prior art. The improved pump shaft connecting structure comprises a two-end pump shaft, the shaft end of which is fixed by a sleeve coupler after being clamped and connected by a half-dividing hoop. The improved pump shaft connecting structure is characterized in that the external diameter of each shaft end matching section at the middle end side and the lower end side of the two-end pump shaft is larger than an end matching section at the upper end side of the pump shaft by 1mm.

The invention relates to a shared multi-chamber evaporation crystallizer for non-similar electrolyte solutions. The shared multi-chamber evaporation crystallizer comprises a first-effect evaporation crystallizer, a second-effect evaporation crystallizer, a third-effect evaporation crystallizer and a fourth-effect evaporation crystallizer which communicate with each other in sequence, wherein the second-effect evaporation crystallizer comprises two branches, and the two branches respectively communicate with a first chamber of the second-effect evaporation crystallizer and a second chamber of the second-effect evaporation crystallizer; the first chamber of the second-effect evaporation crystallizer is provided with an independent first-chamber circulating pump and an independent first-chamber heater; an independent first solid-liquid separation system is arranged at a discharge port of the first chamber of the second-effect evaporation crystallizer, and the first solid-liquid separation system communicates with the third-effect evaporation crystallizer; a second chamber circulating pump and a second chamber heater which are independent are arranged in the second chamber of the second-effect evaporation crystallizer; the second chamber of the second-effect evaporation crystallizer communicates with the third-effect evaporation crystallizer and the fourth-effect evaporation crystallizer; and a second solid-liquid separation system is arranged at a discharge port of the fourth-effect evaporation crystallizer and communicates with a first chamber of the second-effect evaporation crystallizer. According to the invention, multi-branch evaporation chambers are arranged, and different evaporation control over different electrolyte solutions of the same kind is independently achieved.

The invention relates to the field of chemical material processing, in particular to a chemical material processing system and processing method. The method comprises the following steps that firstly, raw materials are added into a box body through a feeding opening in a box cover; secondly, a stirring motor drives a stirring pipe to rotate in the box body, and the mixed chemical materials are stirred; thirdly, when the reacted chemical material needs to be cooled, a liquid inlet pipe communicates with a cooling liquid circulating pump, meanwhile, a liquid guide pipe communicates with a cooling liquid box, the circulating pump is started, a telescopic rod is started to contract, the liquid inlet pipe is driven to slide downwards, cooling liquid enters four cooling pipes and four communicating cavity plates and then flows back into the cooling liquid box through a lower pipe and the liquid guide pipe, and the mixed chemical materials are cooled; and fourthly, when the liquid inlet pipe slides downwards, the cooling pipe is driven to slide outwards, so that a transmission wheel makes contact with an inner gear ring, cooling fins slide out of the cooling pipe, the contact area between the cooling fins and the mixed chemical materials is increased, and the cooling efficiency is improved.

The invention relates to a method for reducing energy consumption of an oxidation unit of an epoxy propane device and mainly solves the problem of high energy consumption in the prior art. The method comprises the following steps: a raw material of isopropyl benzene enters an oxidation tower to be in contact with air for oxidation reaction to generate a material flow comprising cumyl hydroperoxide; one part of a liquid phase material flow at the top of the oxidation tower passes through a cooler and then directly returns back to the bottom of the oxidation tower through a circulation pipeline, and the other part of the liquid phase material flow enters the next level of oxidation tower or the next section; wherein a circulating pump is not arranged on the circulation pipeline, but natural circulation is realized through the density difference of gas-liquid phase material flows in the oxidation tower and the liquid phase material flow in the circulation pipeline. The method can be used in epoxy propane production.

The present invention discloses a fermented soybean fermentation tank. The fermented soybean fermentation tank comprises ceramic walls (1) and four square kiln tanks evenly divided by the ceramic walls (1), one fermentation tank (2) is respectively suspended within each of the square kiln tanks, one water bath insulation zone (3) is preserved between each of the fermentation tank (2) and the corresponding square kiln tank, and one water outlet (6) is arranged at the bottom of each of the water bath insulation zones (3); the fermented soybean fermentation tank also comprises a cylindrical heating tank (4) separated by the ceramic walls (1), a water inlet (5) is arranged at the upper part of the heating tank (4), the lower part of the heating tank is respectively communicated with each of the water bath insulation zone (3) via circulation pumps (7), and heating electric resistance wires (9) are arranged on the outer peripheries; and the fermented soybean fermentation tank also comprises temperature sensors (8) arranged in each of the water bath insulation zone (3) and a controller (10), and the controller (10) is respectively connected with switches of each of the temperature sensors (8), each of the circulation pumps (7), each water outlets (6) and heating electric resistance wires (9). The fermented soybean fermentation tank uses the water bath to conduct insulation and is stable in quality.

The invention discloses uniform coating equipment for solar vacuum tubes, and belongs to the technical field of coating equipment, the uniform coating equipment comprises a machine shell, a coating box is fixedly mounted at the top of the machine shell, a machine door is mounted outside the machine shell through hinges, a fan plate is fixedly mounted on the side wall of the machine shell, a fan is fixedly mounted on the fan plate, and the fan is fixedly mounted on the machine door. A circulating material pipe is fixedly installed on the side wall of the machine shell, a circulating pump is fixedly installed outside the circulating material pipe, and a driving motor is fixedly installed on the other side wall of the machine shell; according to the vacuum tube coating device, the uniform coating mechanism is arranged in the vacuum tube coating device, stable reciprocating motion coating can be conducted on the outer surface of a vacuum tube, the outer surface of the vacuum tube can be uniformly and effectively coated with a coating, the coating effect is improved, a certain air volume is generated while the vacuum tube is coated, the coated vacuum tube is subjected to pre-air-drying treatment, and the coating efficiency is improved. And the lamination adhesion effect of the uniform coating mechanism for coating the vacuum tube in a repeated reciprocating manner can be improved, and the function is powerful.

The invention discloses a special sealing lubricating grease pumpability detection apparatus for a shield tunneling machine. An upper portion of a barrel is fixedly provided with a fixed pulley by virtue of a support, a cylindrical pressure block is arranged inside the barrel, a top plate of the cylindrical pressure block is suspended by virtue of a rope successively passing through the barrel and the fixed pulley, the tail end of the rope is provided with a winding drum, a lower portion of the barrel is fixedly provided with a constant temperature sleeve, a grease cup is arranged inside the constant temperature sleeve, an upper portion of the grease cup is fixedly provided with a capillary tube, an upper portion of the capillary tube is provided with an ejector pin matched with an inner hole of the capillary tube in a sealing and sliding manner, the ejector pin penetrates through a barrel bottom plate to be fixedly connected with a bottom plate of the cylindrical pressure block, an upper portion of the grease cup is provided with an exhaustion pipe, a constant temperature groove is formed at one side of the barrel, the constant temperature groove is communicated with the constant temperature sleeve by virtue of a water inlet pipe and a water outlet pipe, and the water inlet pipe is provided with a circulating pump. The special sealing lubricating grease pumpability detection apparatus is simple and convenient in operation, accurate in test data and capable of reflecting an actual pumping effect of the special sealing lubricating grease for the shield tunneling machine.