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49results about How to "Increase the number of openings" patented technology

Region operating system and scheduling strategy of wind power heating

The invention provides a region operating system and scheduling strategy of wind power heating, and belongs to the technical field of wind power heating. A central control layer of the system can sequentially send an operating state signal of each user to a user terminal layer automatically within each operating time period according to the sequence from poor to good of the building heat preservation performance in a region, and the user terminal layers control start and stop of a heating cable in a phase change energy storage floor or provide operating suggestion information for the users according to received control signals. An operation module of the central control layer can obtain a heating electricity consumption predicted value in a next operating time period according to heating electricity historical data, historical meteorological data and meteorological prediction data and send the predicted value back to a power grid. The problems that the existing wind power heating technology cannot determine region heating electricity consumption requirements, and then the wind power consumption capacity in the power grid is weakened are solved. The region operating system and scheduling strategy of wind power heating can be used for wind power heating.
Owner:HARBIN INST OF TECH

Argillaceous sandstone geological pipe jacking construction process

ActiveCN110864162AGive full play to the effect of drag reductionIncrease the number of openingsPipe laying and repairMud systemsSlurry
The invention discloses an argillaceous sandstone geological pipe jacking construction process. The process comprises the following steps of adopting a thixotropic slurry system to inject thixotropicslurry circumferentially into a concrete pipe, specifically, the concrete pipe comprises a plurality of pipe joints, slurry sleeves are arranged on the pipe joints at the head, slurry sleeves are arranged on the pipe joints in the middle at intervals, grouting holes are distributed in the slurry sleeves in the circumferential direction, and the thixotropic slurry system comprises a grouting pump and a grouting pipeline; mixing grouting materials with water and then stirring to obtain the required slurry during mixing the slurry, and using the slurry after standing for 24 hours; and grouting with the grouting pump, using a pressure gauge and a flow gauge to control the grouting pressure to be 1.1-1.2 times the water depth in the grouting process, and simultaneously controlling the groutingquantity, wherein the grouting pipeline comprises a main pipe and a plurality of branch pipes connected with the main pipe, and the branch pipes convey the slurry fed by the pressure in the main pipeto each grouting hole. Besides the slurry sleeves at the head of a tool for pressure feeding of slurry, the slurry sleeves are additionally arranged on the middle pipe joints, so that a slurry supporting ring belt around the pipe is formed through the slurry sleeves.
Owner:国网浙江省电力有限公司宁波市镇海区供电公司 +1

Braking energy storage device for pure electric bus and working method thereof

The invention discloses a braking energy storage device for a pure electric bus and a working method thereof. The braking energy storage device for the pure electric bus comprises an air compressor, acopper coil tube, a condenser, a dryer, a four loop, a foot operated brake valve, a hand brake valve, a regenerated air reservoir, a front braking air reservoir, an auxiliary air reservoir, a hand braking air reservoir, a rear braking air reservoir and a controller; the air compressor, the copper coil tube, the condenser, the dryer and the regenerated air reservoir are connected with each other in sequence through copper pipes and mutually form a main air source pipeline; the four loop, the front braking air reservoir, the auxiliary air reservoir, the hand braking air reservoir, the rear braking air reservoir, the foot operated brake valve, the hand brake valve and the controller are connected with each other through nylon pipes to form a braking energy supply assembly; and according to the working method, condensation and sewage draining of the pipeline are realized in an electric controlled and temperature controlled manner; and the controller controls the air compressor to start and stop. According to the braking energy storage device for the pure electric bus and the working method thereof, the working efficiency of a braking system is enhanced on the basis of guaranteeing thesafety and reliability of the whole braking system, and the energy utilization efficiency is enhanced.
Owner:ANHUI ANKAI AUTOMOBILE

CRB600H prepared without low-temperature annealing treatment, and rolling process thereof

ActiveCN108286022AIncrease the area reduction rate of the rolled pieceIncrease the number of openingsWork cooling devicesMetal rolling arrangementsWire rodProduction line
The invention discloses CRB600H prepared without low-temperature annealing treatment, and a rolling process thereof, and relates to the technical field of metallurgy. The CRB600H comprises the following components in percentage by weight: 0.18%-0.25% of C, 0.35%-0.45% of Si, 0.5%-1.2% of Mn, 0.01%-0.04% of P, 0.01%-0.02% of S, 0.003%-0.007% of N, 0.1%-0.5% of Cr, 0.020%-0.040% of V, and the balance Fe and inevitable impurities. The rolling process for the CRB600H mainly comprises the following steps: base metal preparation, loading for round wire rods onto a production line, mechanical descaling, lubrication, pre-rolling ribbing and drawing, stress relief, and winding. The CRB600H prepared without the low-temperature annealing treatment does not need to be subjected to the low-temperatureannealing treatment, and the extensibility of the CRB600H is excellent while the yield strength and the tensile strength of the CRB600H reach the standards. The rolling process for the CRB600H prepared without the low-temperature annealing treatment is simple, saves the production cost, avoids the resource waste, achieves energy conservation and environment protection, and increases the economic benefits.
Owner:ANHUI BRC & MA STEEL WELDMESH

Control device and control method for stabilizing pressure of pneumatic branch pipe network

PendingCN107035970ASmall pressure fluctuation rangeImprove overall air supply qualityPipeline systemsPressure rangeTubular network
The invention discloses a control device and a control method for stabilizing the pressure of a pneumatic branch pipe network. The control device consists of an air source, a separator, an air storage tank, a stop valve, a pressure sensor, a proportional throttling valve, other normal air use equipment, intermittent high-flow air use equipment and a programmable controller; each branch proportional throttling valve is respectively mounted in an inlet of the intermittent high-flow air use equipment of a conveying pipe network; each branch pressure sensor is respectively mounted in an inlet of each branch proportional throttling valve; and the pressure sensor and the proportional throttling valve are respectively connected to the programmable controller through leads. The control method comprises the following steps: when a measured pressure value of an air use branch is not in an allowed pressure range set by the branch, a corresponding control quantity gradually increased or decreased along a parabola is output to the proportional throttling valve; and the openness of a valve port of the proportional throttling valve is reversely adjusted to stabilize the pressure of the air use branch, so that the air supply quality of the whole pneumatic pipe network branch is improved.
Owner:HENAN POLYTECHNIC UNIV

Low temperature compensating device based on external environment temperature of refrigerator, and single low temperature compensation refrigerator

The invention relates to a low temperature compensating device based on external environment temperature of a refrigerator, and a single low temperature compensation refrigerator. The low temperature compensating device comprises a temperature sensing probe, a heating element and a microprocessor, wherein the microprocessor is used for controlling start of the heating element according to the external environment temperature, detected by the temperature sensing probe, of the refrigerator; the heating element starts to heat a refrigerating chamber so as to increase the start times of a refrigeration system and prolong the total running time, so that the temperature of a freezing chamber can be reduced. The refrigerator comprises the refrigerating chamber and the freezing chamber, wherein the refrigerating chamber and the freezing chamber are capable of realizing refrigeration simultaneously during work of the refrigeration system; the longer the running time of the refrigeration system is, the better the temperature reduction effect of the freezing chamber is; the heating element arranged inside the refrigerating chamber can be intelligently started according to the external environment temperature of the refrigerator, so that the running time of the refrigeration system can be prolonged and the start times of the refrigeration system can be increased, and thus the temperature of the freezing chamber can be lowered to satisfy the temperature requirements of the freezing chamber.
Owner:MOBICOOL ELECTRONICS (ZHUHAI) CO LTD

Sound wave temperature measurement cooperative control cement kiln SNCR denitration system and working principle thereof

The invention relates to a sound wave temperature measurement cooperative control cement kiln SNCR denitration system and a working principle thereof. The sound wave temperature measurement cooperative control cement kiln SNCR denitration system comprises a first air pipe, a second air pipe and a computer, wherein the first air pipe and the second air pipe are both provided with a plurality of denitration devices, and each denitration device comprises an ammonia water pipeline, a compressed air pipeline and a temperature measurement combination; and the temperature measurement combination comprises a plurality of sound wave temperature measurement devices which are distributed at equal angles in the circumferential direction, air inlets of the sound wave temperature measurement devices areconnected to one end of the compressed air pipeline in parallel, and a denitration combination is further arranged above the temperature measurement combination. According to the invention, the plurality of denitration devices are arranged in the flue gas flowing direction, and the temperature measurement combinations in the plurality of denitration devices can accurately measure the temperaturedata of any position in the flue gas flowing process, so that the temperature data of flue gas can be measured in real time. In addition, the distance between the temperature measurement combination and the denitration combination in each denitration device is small, and the ammonia spraying amount can be accurately and quickly determined by a plurality of ammonia water spray guns in the denitration combination according to the temperature of the flue gas at the nearby position, so that the denitration control difficulty is reduced, and the control flexibility is greatly improved.
Owner:NANJING KISEN INT ENG

A Centrifugal Compressor Vaneless Diffuser Stability Expansion System

ActiveCN106065877BImprove flow statusTo achieve the purpose of expanding stabilityPump componentsPumpsReturn channelForce sensor
The invention relates to a stabilizing system for a bladeless diffuser of a centrifugal compressor. In the stabilization system, return channels with openings at both ends are provided on the inner wall of the vaneless diffuser, and the return channels are arranged in a straight line along the radial direction of the vaneless diffuser. There are several return passages, and several return passages are arranged along the circumferential direction of the vaneless diffuser; dynamic pressure sensors are also provided in the present invention, and the distribution of the dynamic pressure sensors in the circumferential direction of the vaneless diffuser is related to the distribution of the return passages. The distribution of the dynamic pressure sensor in the radial direction of the vaneless diffuser includes at least two positions of the return inlet and the return outlet of the return passage. There is an opening and closing device in the return channel, and the controller can individually control the opening and closing device in any return channel. The invention realizes the active and intelligent expansion and stability of the vaneless diffuser without affecting the performance and efficiency of the compressor under the design working condition through the active intelligent control mode.
Owner:HEFEI GENERAL MACHINERY RES INST

LED display screen energy saving method, device and equipment and storage medium

The invention discloses an LED display screen energy saving method and device, equipment and a storage medium. The method comprises the steps of collecting display data; updating the display data of the next line when the line scanning period enters the shadow elimination time, and calculating the signal pulse width of the display data in each column driving signal of the next line at the shadow elimination time, wherein the vanishing time is a time slot between line scanning pulses of adjacent line scanning signals; judging the working mode of the driving circuit of the column driving module corresponding to each column driving signal based on the signal pulse width, and adjusting the driving circuit of the column driving module corresponding to each column driving signal according to the working mode. Compared with the prior art that the energy-saving mode can be triggered only when the next frame of data is all-zero data, the signal pulse width of the display data in each column driving signal is judged in the vanishing time, the starting frequency of the energy-saving mode of the column driving module in the row scanning period is increased, and therefore the energy-saving efficiency of the LED display screen is improved.
Owner:SHENZHEN SUNMOON MICROELECTRONICS

Compound bone arthralgia plaster medicine and preparation method

The invention belongs to the technical field of traditional Chinese medicine preparation, and discloses a compound bone arthralgia plaster medicine, a preparation method and application. The compoundbone arthralgia plaster medicine comprises the following components according to weight: 20 g of garden balsam stem, 20 g of lycopodium clavatum, 20 g of Chinese angelica, 20 g of notopterygium root,15 g of radix angelicae pubescentis, 25 g of lithospermum, 10 g of asarum, 20 g of cassia twigs, 10g of radix aconite, 10 g of radix aconiti kusenzoffii, 20 g of radix clematidis, 15 g of golden cypress, 20 g of radix angelicae, 15 g of prepared frankincense, 15 g of prepared myrrh, 15 g of carthamus tinctorious, 10 g of arisaema heterophyllum blume, 10 g of stiff silkworm, 10 g of raw nux vomica,15 g of ephedra and 20 g of radix stephaniae tetrandrae. According to the compound bone arthralgia plaster medicine provided by the invention, the affected parts are locally and directly stimulated through point application therapy, the efficacy of the medicine directly reaches the affected parts, the therapy is more targeted, the part selection is accurate, the duration is long, the curative effect is definite, the medicine is safe and free of wound, and the medicine has the advantages of being simple, economical and practical and can be widely applied clinically.
Owner:武汉市第三医院

Stability extension system for vaneless diffuser of centrifugal compressor

ActiveCN106065877AImprove flow statusTo achieve the purpose of expanding stabilityPump componentsPumpsControl mannerEngineering
The invention relates to a stability extension system for a vaneless diffuser of a centrifugal compressor. According to the stability extension system, backflow channels are arranged on the inner side wall of the vaneless diffuser, wherein openings are formed in the two ends of each backflow channel, and the backflow channels are linearly distributed in the radial direction of the vaneless diffuser. The multiple backflow channels are distributed in the circumferential direction of the vaneless diffuser. Dynamic pressure sensors are further arranged in the stability extension system, distribution, in the circumferential direction of the vaneless diffuser, of the dynamic pressure sensors is consistent with the arrangement of the backflow channels, and the distribution positions, in the radial direction of the vaneless diffuser, of the dynamic pressure sensors at least include the positions of backflow inlets of the backflow channels and the positions of backflow outlets of the backflow channels. Opening and closing devices are arranged in the backflow channels. A controller can independently control the opening and closing device in any backflow channel. By means of the active intelligent regulation and control manner, under the condition that the performance and efficiency of a compressor under the design condition are not influenced, active and intelligent stability extension of the vaneless diffuser is achieved.
Owner:HEFEI GENERAL MACHINERY RES INST

Anion intelligent oil saving and emission reduction system for automobile fuel oil engine and running method of system

The invention relates to an anion intelligent oil saving and emission reduction system for an automobile fuel oil engine and a running method of the system, and belongs to the field of anion and engine fuel oil. The system comprises anion generators, an engine rotating speed collection device, an information analysis control center, an information processing device and a grounded guide chain. According to the system, the air anion concentration of the end of an engine gas inlet can be adjusted according to the output power of the automobile fuel oil engine, combustion efficiency is further increased, and the effects of oil saving and emission reduction are achieved; the air anion concentration of the end of an engine exhaust port can be adjusted according to the output power of the automobile fuel oil engine, and tail gas is further purified; and in addition, when it is detected that the automobile engine is in an idling state for a long time, the number of the started anion generatorsof the end of the engine gas inlet can be improved, carbon deposition is further eliminated, the defect that current anion oil saving systems cannot achieve intelligent adjusting according to engineoutput power is finally effectively overcome, and the high efficiency, energy saving and emission reduction comprehensive effects are achieved.
Owner:秦皇岛零叁邀柒科技开发有限公司

Automatic bagged material feeding device and feeding machine comprising same

The invention discloses an automatic bagged material feeding device and a feeding machine comprising the same. The automatic bagged material feeding device comprises a material conveying belt, a material bin and a bag breaking mechanism, the bag breaking mechanism comprises a feeding chamber, a bag clearing rotating disc, a bag breaking piece and a driving mechanism, the feeding chamber is of a structure with the two ends open, the bottom end of the feeding chamber communicates with the material bin, the section of the upper half portion of the feeding chamber is in a trapezoid shape, the section of the lower half portion of the feeding chamber is in a square shape, the discharging end of the material conveying belt is located above the feeding chamber, the bag clearing rotary disc is coaxially provided with a second connecting shaft, the second connecting shaft is connected with the feeding chamber through a rotary disc support, and the second connecting shaft is connected with the driving mechanism through a belt; and the bag clearing rotating disc is provided with bag claws in the circumferential direction of the bag clearing rotating disc, wherein the bag claws are used for bringing out empty bags in the feeding chamber when the bag clearing rotating disc rotates. According to the automatic feeding device, automatic feeding, bag breaking and bag clearing are achieved, manual carrying and bag opening are not needed, and potential safety hazards are effectively avoided.
Owner:广西贵港和乐门业有限公司
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