75results about How to "Guaranteed circulating flow" patented technology

The invention discloses a circulation ink supply method and a circulation ink supply system, relating to the ink supply technique. The method and the system can ensure the printing quality, simultaneously, the system complexity can be reduced and the system cost is saved. The circulation ink supply system provided by the embodiment comprises an ink box, an ink inlet pool which is provided with an overflow beam, a discharging trough and an ink supply trough, and an ink inlet pump; the ink inlet end of the ink inlet pump is connected with the ink box; the ink outlet end of the ink inlet pump is connected with the inlet of the ink supply trough of the ink supply pool; the discharging trough outlet of the ink inlet pool is connected with the ink box, wherein, the ink supply trough outlet of the ink inlet pool is connected with the nozzle inlet which is arranged below the ink supply trough of the ink inlet pool; the nozzle inlet is connected with the ink inlet end of at least one nozzle; the ink outlet end of at least a nozzle is connected with the nozzle outlet; the nozzle outlet is connected with the ink inlet end of a returning ink pump; the ink outlet end of the returning ink pump is connected with the ink box.

The invention provides a compactly arranged small-sized reactor primary loop overall structure. The structure is suitable for a marine operation environment, and comprises a pressure container, double-layer sleeve structures, inner-pile components, a control rod driving mechanism, a main pump, a steam generator, a pressure stabilizer, a main equipment integral support, a suppression pool, a primary shielding structure and the like. The steam generator is connected with the pressure container through one double-layer sleeve structure; the main pump is connected with the pressure container through one double-layer sleeve structure; the pressure stabilizer is connected with an evaporator through a surge pipeline; and the pressure container, the steam generator, the main pump and the pressurestabilizer are installed in the suppression pool through the integrated integral support. According to the system provided by the invention, the circulation of a nuclear reaction coolant in a reactorcoolant system can be ensured, realization of compact arrangement of a nuclear steam supply system is facilitated, and the heat exchange efficiency is improved.

The invention discloses a phase-change material energy-storage based cooling apparatus for a power battery. The cooling apparatus comprises a power battery, a cooling liquid circulation module and a refrigeration module, wherein the power battery is connected with the cooling liquid circulation module to form heat exchange circulation; heat exchange is carried out between the cooling liquid circulation module and the refrigeration module; the power batter is electrically connected with the cooling liquid circulation module and the refrigeration module separately; and according to the phase-change material energy-storage based cooling method for the power battery, the to-be-cooled power battery pack is cooled by the phase-change material energy-storage based cooling apparatus for the power battery. The cooling apparatus has the advantages of reasonable structure, high temperature control precision, high radiation capability, convenience in use, low power consumption and small size, and is more applicable to popularization and application in the temperature control of the power battery pack.

The invention provides a heating heat pump system used in an ultralow-temperature environment. The heating heat pump system comprises a main circulation loop which is composed of a first compressor (1), a first condenser (2), a vortex tube (4) and an evaporator (7), wherein the first condenser (2) is used for exchanging heat with a first water pipe (16) to make hot water or achieve heating, and a second condenser (5) is arranged on a pipeline between the first condenser (2) and the evaporator (7). The heating heat pump system further comprises an auxiliary circulation loop which is connected with the main circulation loop in an overlying mode through the second condenser (5), wherein the auxiliary circulation loop is used for exchanging heat with a second water pipe (17) to make hot water or achieve heating. By means of the heating heat pump system, heat of refrigerant in the main circulation loop can be further absorbed, intermediate-temperate water is made through the overlying circulation loop and is supplied together with high-temperature water made through the first condenser, the temperature range of made hot water is widened, intelligent regulation of the water temperature is achieved, and different demands of different users for hot water are met; energy at the hot end of the vortex tube is effectively utilized, and the COP of the system is improved.

The invention relates to a beehive capable of improving a bee environment in the technical field of bee raising. The beehive comprises a beehive body, a beehive bottom, a side cover, a beehive cover, a middle partition plate, a frame and a bee clapping plate; a support platform used for erecting the middle partition plate, the frame and the bee clapping plate is arranged at the upper end of the beehive body, the frame is composed of an upper beam, a lower beam and two lateral bars, the length of the two lateral bars of the beehive is not less than that of the lower beam, a removable bottom plate is arranged at the beehive bottom, after the bottom plate is removed, a bottom hole which is communicated with the interior of the beehive body is reserved in the beehive bottom, a bottom net matched with the bottom hole position is arranged on the top face of the beehive bottom, the bottom hole, the beehive body interior and an air hole are combined to form an air channel used for air circulation, air circulates along the bottom hole, the beehive body interior and the air hole, it is guaranteed that air inside the beehive body interior can perform circulation flow, the air convection effect is significant, the whole environment in the beehive can be improved, the environment inside the beehive can better adapt to biological characteristics of bees, and then health of the bees in the beehive is guaranteed.

The invention relates to a modularized semi-submersible type sea fish breeding platform. The platform comprises a main platform body structure, net wheels, nets, rotary mechanisms and driving mechanisms, the main platform body structure is internally provided with several parallel rotary mechanisms, and the rotary mechanisms comprise the driving mechanisms, the net wheels and rotary shafts; one net is fixed between every two net wheels, the nets are hung at the two side ends of the adjacent net wheels, and the net wheels of modularized rotary units are supported in the center of the main platform body structure through the rotary shafts; the net wheels are connected with the driving mechanisms to form the independent modularized rotary units, connecting pairs between the driving mechanismsand the net wheels adopt a gear-rack mode or an extruding friction mode, and the nets are driven by the net wheels to rotate. The platform has the advantages that net boxes and the nets automaticallyrotate for net drying to effectively avoid that attachments on the nets grow, and it is ensured that sea water inside and outside the net boxes normally flow circularly. The steps of net replacementand net cleaning can be omitted, and the workload and work intensity of fishermen can be effectively reduced.

The invention relates to incremental freeze concentration equipment with a double-sandwich structure. The incremental freeze concentration equipment comprises a crystallization and concentration unit,a cold carrier temperature control unit and a parameter control and automatic recording unit, wherein the crystallization and concentration unit comprises a crystallization and concentration tank, anouter sandwich temperature probe and multiple groups of temperature recording probes in the crystallization and concentration tank; the side wall of the crystallization and concentration tank is of the double-sandwich structure which comprises an inner sandwich layer in which a buffering heat carrier I is introduced and an outer sandwich layer in which a cold carrier II is introduced; the heat carrier I is a food-grade carrier having heat transfer and buffer characteristics; the cold carrier II is an anti-free cold carrier; the outer sandwich layer temperature probe is arranged in the outer sandwich layer; the multiple groups of temperature recording probes are arranged in the crystallization and concentration tank. The invention also relates to a freeze concentration method. The incremental freeze concentration equipment disclosed by the invention is capable of realizing stabilization and accurate control of temperature of feed liquid during a freeze concentration process, and has the advantages of having a good freeze concentration effect, strong universality to different feed liquid and high automation degree, being beneficial for optimizing technological conditions, and the like.

The invention discloses a constant-temperature express cabinet and a constant-temperature control method. According to the constant-temperature express cabinet, the temperature in the storage cabinetis detected by a temperature sensor. A refrigeration system, a heating device and a ventilation system are controlled to operate by an industrial personal computer according to the temperature, so that the constant-temperature environment of the express cabinet is guaranteed all the time. Therefore, by adopting the constant-temperature express cabinet and the constant-temperature control method, the abnormity of articles in the storage cabinet due to the ambient temperature can be effectively prevented, additionally, electronic components in the express cabinet are protected, the service lifeof the express cabinet is prolonged, the use reliability of the express cabinet is increased, and the late maintenance cost is reduced.

The invention relates to a well wall mud cake scraping tool and method for an open hole well. According to the technical scheme, a rigid centralizer body short joint, a mud cake scraping steel wire short joint and a ball centralizer body short joint are of independent structures and can be freely combined and connected through screw threads; the inner drift diameter of the tool is consistent with the inner diameter of a well completion sleeve, and an upper connector and a lower connector are connected with the sleeve; the mud cake scraping steel wire short joint is in interference fit with a well hole, steel wires are linearly arranged, and circulating fluid can flow through channels between all the rows of the steel wires. The well wall mud cake scraping device and method have the advantages that the steel wires and the well hole are in interference fit, and a mud cake structure can be effectively damaged; a rigid centralizer and a ball centralizer on the upper portion and the lower portion of the tool cooperate, so that the centralizing degree of the sleeve of the tool is guaranteed; by means of the passageway structure of the tool, circulating flowing of the fluid is guaranteed. In a word, the tool can achieve effective removal of irregular well hole mud cakes and guarantee normal circulation of mud, flushing liquid, cement slurry and other well entering liquid, and therefore the mud cake flushing efficiency and the well cementation two-interface cementing strength are improved.

The invention discloses an electric cylinder with a circulation cooling channel, and belongs to the field of driving machines. The electric cylinder comprises a machine case, a motor, a lead screw, alead screw nut which are mounted in the machine case, and a front end cover and a rear end cover which are used for sealing the two ends of the machine case. The electric cylinder further comprises acooling mechanism, wherein the cooling mechanism is provided with a lubricating oil circulation channel; the lubricating oil circulation channel comprises a first oil storage area formed by the frontend cover and the gap between the machine case and the motor, a second oil storage area formed in the machine case, and a third oil storage area formed by the rear end cover and the gap between the machine case and the motor, wherein the first oil storage area is communicated with the second oil storage area, and the second oil storage area is communicated with the third oil storage area. The cooling mechanism is utilized to transfer the heat in the electric cylinder out of the machine case through circulation flowing in the lubricating oil circulation channel, the double effects of cooling and lubricating of the electric cylinder are achieved, thermal abrasion is reduced, the stability of the electric cylinder is improved, and the service life of the electric cylinder is prolonged.

An LED module employing vacuum phase change technology and applicable to LED lighting is mainly technically characterized in that a radiator is a bottom plate internally provided with a vacuum cavity filled with a cryogenic medium, the vacuum cavity is internally provided with a narrow-tube passage which is a hollow tube surrounding the vacuum cavity, and the peripheral wall of the vacuum cavity is provided with a micro-groove structure, namely corrugated grooves are connected into a groove-line structure. The LED module is in the overall vacuum sealed structure with the surrounding radiating fins, a principle of heat conduction of thermal tubes is generated, heat conduction and heat dissipation is more efficient than that of the thermal tubes, and heat conduction and heat dissipation are improved. The LED module with the special structure has the advantages that the cooling medium can quick gasify at low temperature to allow quick start of heat dissipation; the cooling medium is used with a new cooling medium, gasifying temperature is greatly lowered, heat dissipation speed is increased, and intermediate and marginal thermal gradient is decreased.

The invention relates to a ladle bottom structure capable of reducing continuous casting ladle cast residues. The ladle bottom structure is characterized in that a ladle bottom and ladle walls form a ladle inner cavity together; the ladle bottom structure comprises a first flat surface, a second flat surface and a transition curved surface; the first flat surface is internally provided with a ladle outlet; the second flat surface is internally provided with a vent brick; the second flat surface is higher than the first flat surface; the transition curved surface is connected with the first flat surface and the second flat surface. The ladle bottom structure has the following advantages: (1) ladle cast residues can be greatly reduced, and the cast residues can be reduced by above 70% on the premise of preventing ladle slagging; (2) the transition between the second flat surface and the first flat surface is smooth, so that circulation flow of molten steel in a low-lying area during an argon blowing process can be ensured; (3) the ladle bottom structure is relatively simple, less in construction difficulty and low in maintenance cost.

The invention discloses an observable wheat germinating device, and belongs to the technical field of wheat germinating equipment. The observable wheat germinating device comprises a box body and a box cover, wherein the lower end of the box body is provided with universal wheels capable of being braked, the upper end of the box body is provided with the box cover, the side face of the box cover is provided with a handle, the top face of the box cover is provided with breathable holes, the bottom face of the inner portion of the box body is provided with a groove, the groove is provided with awater absorption layer, the water absorption layer is provided with a separation layer, the four corners of the box body are provided with water injection ports respectively, the inner side wall of the lower portion of the box body is provided with a carbon dioxide detector, the inner side wall of the upper portion of the box body is provided with a temperature detector and lighting equipment, the inner wall of the upper portion of the box body is provided with an oxygen production outlet and a sprayer, the outer wall of the box body is provided with a control panel, the lower portion of thebox body is provided with an exhaust port, and the bottom face of the box body is provided with a driving power supply and an oxygenator. The observable wheat germinating device has the advantages that the use is simple and convenient, the practicability is high, the seed deviation is effectively prevented, and the uniform distribution of seeds is ensured, thereby ensuring the high survival rate of wheat seedlings.

The invention discloses a damage-free waste drilling fluid processing process, which comprises the following steps of: firstly drilling a wellhead by a drilling machine, and injecting wellhead slurry; passing a mixture of waste drilling fluid and the wellhead slurry through a vibration sieve to be filtered for obtaining rock debris, and meanwhile, feeding filter liquid into a desander; putting the obtained rock debris into a cleaner a, performing cleaning through externally injected clean water to obtain clean rock debris and medium-coarse sand, and meanwhile, merging the clean water a into circulation water; passing the filter liquid through the desander to obtain medium-fine sand; putting the obtained medium-fine sand into a cleaner b; using introduced clean water for cleaning to obtain clean sand; merging cleaning water b into the circulation water; and meanwhile, feeding the filter liquid obtained after passing through the desander into a desilter. The damage-free waste drilling fluid processing process has the advantages that through the principle, on the premise of not easily causing rock framework collapse due to clay mineral swelling and transportation, various different solid-phase particles in the waste drilling fluid can be processed; the circulation flowing use of the waste drilling fluid is ensured; and the condition that the fluid cannot reach a borehole from a flow storage layer is avoided.

The invention discloses a filling device special for an injectable suspension. The filling device comprises a dosing device, a dosing control valve and a filling head. The dosing device comprises a piston booster device and a dosing cavity. A dosing cavity inlet and a dosing cavity outlet are formed in the lower part of the dosing cavity. The dosing cavity is connected with the filling head. The dosing control valve is a three-way valve and comprises two inlets and a liquid outlet. One of the inlets is connected with the filling head. The other inlet is connected with the dosing cavity outlet.The filling head is internally provided with a control valve set. A liquid inlet, a dosing cavity connecting opening, a dosing control valve connecting opening, a filling opening and a liquid discharging opening are formed in the filling head. The dosing cavity connecting opening in the filling head is connected with the dosing cavity inlet. The dosing control valve connecting opening is connected with one inlet of the dosing control valve. The liquid discharging opening is controlled to communicate with the filling opening through a piston. A filling container is arranged at the lower part of the filling opening. Liquid can be made to be always at a circulation state in the filling process, the consistency of concentration of the injectable suspension is ensured, the filling quality is ensured, and a non-mixed suspension liquid can be filled.

The invention discloses an efficient landscape water body circular flowing apparatus. The efficient landscape water body circular flowing apparatus comprises a base and an apparatus body arranged on the base, wherein the base is provided with a rubber pad, the apparatus body comprises a power supply mechanism and a work mechanism connected to the front end of the power supply mechanism, the work mechanism comprises a rotation shaft and a water inlet pipe opening arranged at the front end of the rotation shaft, a water outlet hole is arranged above the rotation shaft, a solar panel is arranged above the power supply mechanism, a charging electric wire is arranged on the back side of the solar panel, a storage battery is arranged in the power supply mechanism, the solar panel and the charging electric wire are connected with the storage battery, and the storage battery is connected with the rotation shaft. Compared with the existing technical scheme, the efficient landscape water body circular flowing apparatus has the advantages that the structure is simple, the applicability is strong, the water circulation efficiency is high, and the economic cost is low.

The invention discloses a silent type cooling fan motor structure capable of preventing lubricating oil from leaking. The silent type cooling fan motor structure capable of preventing lubricating oilfrom leaking comprises an oil-containing bearing, an outer frame and a rotating shaft, wherein the rotating shaft is arranged inside the outer frame, the rotating shaft is arranged at the position, close to the middle, of the outer frame, the oil-containing bearing is arranged on the outer side of the rotating shaft, a middle pipe is arranged on the outer side of the oil-containing bearing, a buckle ring is arranged at the bottom of the oil-containing bearing, and an oil storage space is formed in the part, at the bottom of the buckle ring, of the middle pipe. According to the silent type cooling fan motor structure and the oil-containing bearing, the lubricating oil in a filling bearing system can be enabled to circulate inside the bearing system, and lubricating oil does not leak from the bearing system; the sufficient lubricating oil exists between the inner wall of a bearing inner hole and the shaft center in the operation process of a cooling fan rotor to form an oil film, the pressure of the oil film is sufficient to achieve the effect that the rotor is not inclined when the rotor operates, and the shaft center is not in contact with the inner wall of the bearing hole; and the cooling fan rotor is overturned in the operation process, so that friction abnormal noise caused by the contact between the shaft center and the bearing does not occur at any angle, and the servicelife of a cooling fan is longer.

The invention discloses an unmanned underwater vehicle dynamic performance overland test system and a test method thereof and belongs to the field of unmanned underwater vehicles. The test system structurally comprises an organic working medium evaporator, a preheater, a self-contained pressure regulator, a gas flotation turbine expansion generator, a simulated sea water condensing module and a working medium pump. A PLC controller can control a working medium pump driver according to detected data of an evaporator outlet pressure sensor and an evaporator outlet temperature sensor. The systemperforms overland simulation on the unmanned underwater vehicle working environment, accordingly, overland simulation operation on an unmanned underwater vehicle is achieved, the test flexibility anddynamic performance test efficiency of the system are improved, and the test cost is lowered. Meanwhile, the PLC controller judges whether the superheat degree at an inlet of the expansion generator is qualified or not according to the detected data of the evaporator outlet pressure sensor and the evaporator outlet temperature sensor, the system is regulated through the working medium pump driver,automatic control is achieved, and the working test stability is guaranteed.

The invention discloses a high-pressure water cooling resistor which structurally comprises a first pipeline, a box body, a wiring electrode plate, a water cooling resistor, a second pipeline, a radiator, an inlet/outlet and a processing device. When the high-pressure water cooling resistor is used, after water flow enters a threaded pipe, a spiral water path is formed in the threaded pipe due to inertia, and the speed of the water flow is increased; cooling liquid can quickly flow into the water cooling resistor through the threaded pipe to circularly flow, hot air on the threaded pipe is blocked through the heat insulation layer, and the threaded pipe is sealed by matching a rubber cushion and a spiral tightening strip with a conduction port, so that the rubber cushion and the spiral tightening strip are in a closed state, and the cooling liquid in the threaded pipe is prevented from flowing and permeating into the resistor; and the water cooling resistor is protected, so that the water cooling resistor can operate stably.