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Fracturing base liquid mixer

PendingCN108371894AAchieve energy efficiency ratioCanto Efficiency RatioFlow mixersTransportation and packagingBusiness efficiencyFracture sites
The invention relates to the technical field of water-powder mixing or liquid mixing equipment in the construction operations of oil and gas fields and particularly relates to a fracturing base liquidmixer used in a construction process of an oil field fracturing site. The fracturing base liquid mixer comprises a rotational flow premixing device which comprises a liquid inlet, a feeding hole, a connecting component and an annulus, wherein the feeding hole is vertically formed, the liquid inlet is horizontally formed, the side wall of the feeding hole is connected with a sleeve, the connectingcomponent is arranged in the sleeve, the annulus is formed by the connecting component and the side wall of the feeding hole and is communicated with the liquid inlet, an oblique side is arranged atthe lower end part of the side wall of the feeding hole, an oblique plane is arranged at the upper part of the connecting component, and the oblique plane and the oblique side form certain angles witha vertical plane and are 0-80 degrees; and a reduced section, a throat pipe and a dispersion pipe are sequentially arranged at the lower part of the feeding hole. The fracturing base liquid mixer canmeet the requirements on the fracturing base liquid during large-scale operations in a fracturing operation site, the blending and mixing efficiencies are improved, the mixing quality of guanidine gum liquid is improved, and the optimal energy efficiency ratio is realized.
Owner:YANTAI JEREH PETROLEUM EQUIP & TECH

Dynamic parking navigation system used at inner part of parking lot

InactiveCN101789188AImprove parking efficiencyReduce time spent looking for a parking spaceIndication of parksing free spacesParking areaParking space
The invention relates to a dynamic parking navigation system used at the inner part of a parking lot. The dynamic parking navigation system is formed by the connection of an on-vehicle parking navigation terminal, a parking lot navigation server and a wireless parking space detecting network through wireless communication. The wireless parking space detecting network is formed by the connection of parking space detectors through wireless communication, and the parking space detectors are respectively arranged on parking spaces. The on-vehicle parking navigation terminal is arranged in a vehicle to be parked. By integrating the functions of detecting as well as collecting the parking spaces in the parking lot and positioning as well as navigating the vehicle to be parked, the dynamic parking navigation system thoroughly solves the problems of difficult parking space finding and difficult parking at the inner part of the parking lot, and meanwhile is convenient for a parking user to quickly as well as accurately find the target parking space. With full-automatic and intelligent navigation, the dynamic parking navigation system is of great significance in increasing the parking efficiency of the large-sized parking lot particularly the indoor parking lot, shortening the finding as well as waiting time of the user, and improving the utilizing rate of the parking spaces.
Owner:TIANJIN XINDIAN TECH DEV

Polymer/graphene anti-static coating, preparation method and application thereof

The invention discloses a polymer/graphene anti-static coating, a preparation method and application thereof. The coating comprises the following constituents by weight percent: 0.01 portions to 0.5 portions of graphene; 0 portion to 10 portions of conductive additive; 90 portions to 100 portions of polymer; and solvent; the preparation method thereof comprises the following steps: completely and uniformly mixing graphene and conductive additive in advance by various manners; preparing a graphene-conductive additive compound system; using the compound system as a base, adding in conductive additive and polymer along with the solvent, completely and uniformly mixing to obtain the coating. Additionally, an anti-static film can be prepared by using different film forming technologies. The polymer/graphene anti-static coating, the preparation method and application thereof effectively solve the problems that graphene in polymer is easy to agglomerate and difficult to be uniformly dispersed in the preparation process of anti-static coating and film; the anti-static performance and mechanical performance of the coating and the film are greatly increased; meanwhile, the preparation technology is easy to be operated; the production is continuous, and the coating and film are suitable for industrial production.
Owner:苏州格瑞丰纳米科技有限公司

Self-help type dish ordering method and system of restaurant intelligent terminal based on wireless network

The invention discloses a self-help type dish ordering method and system of a restaurant intelligent terminal based on a wireless network. The self-help type ordering method comprises the following steps that: S1, a customer browses dishes and orders on a dish ordering intelligent terminal; S2, the dish ordering intelligent terminal transmits dish ordering information of the customer to a server computer through the wireless network; S3, the server computer determines dish delivery ports according to names and types of the dishes ordered by the customer and distributing order information to kitchen intelligent terminals of the corresponding dish delivery ports; S4, the dish ordering intelligent terminal obtains making processes of ordered dishes fed back by key making nodes of a kitchen from the server computer; and S5, the server computer calculates predicted dish serving time of a corresponding dish according to dish queuing waiting time, standard making time, practical making time and delivering time, and feeds back the predicted dish serving time to the order intelligent terminal. The self-help type dish ordering method and system of the restaurant intelligent terminal based on the wireless network, disclosed by the invention, have the advantages of bringing convenience for the customer to immediately know making processes of ordered dishes, reducing error rate and increasing service efficiency and business volume of a restaurant.
Owner:神州美味(北京)信息科技有限公司

Rail type conveyer

A track-type conveyor comprises a machine rack, a drive belt wheel, a drive belt wheel, a synchronous belt, a motor, a long linear guide rail, clips and a clip support mechanism; the drive belt wheel and the driven belt wheel are respectively fixed on the machine rack; the long linear guide rail is arranged on the machine rack; the clips are respectively positioned on two clip spacer plates on the clip support mechanism which can realize the displacement transformation among clips; each clip spacer plate in the clip support mechanism is matched with a short linear guide rail in the clip support mechanism through a clip slider connected with the clip spacer plate; the clip spacer plate is driven by a drive mechanism which is fixed in a short guide rail mounting plate to enable the two clip spacer plates to be furled and opened along the short linear guide rail; and the short guide rail mounting plate of the clip support mechanism is connected with the synchronous belt and also matched with the long linear guide rail through a main slider connected with the short guide rail mounting plate. The invention is characterized by simple structure, small size, easy installation and detachment, as well as fast delivery speed, which can rapidly deliver the packages conveyed from an automatic clip feeder to the predetermined locations in accordance with the scheduled itinerary.
Owner:湖北恒普自动化装备有限公司

Vehicle-mounted high-speed road inspection system and data acquisition and processing method

The invention discloses a vehicle-mounted high-speed road inspection system, and a data acquisition and processing method based on the vehicle-mounted high-speed road inspection system. The inspection system aims to the technical disadvantage in an existing high-speed road inspection method, a movable inspection vehicle is adopted as a carrying platform for carrying multiple data collecting equipment, and the time synchronization, state response, data transmission and storage of each piece of data collecting equipment as well as data collecting equipment integration and monitoring technologies are organically adjusted through a high-precision synchronous controller; the operation reliability of the vehicle-mounted high-speed road inspection system is guaranteed, a data fusion technology and the true color valuation are used for achieving a real three-dimensional expression of a space surface feature, the result output and management are finished in a customizing manner, different requirements of clients are met, the quality of inspection on a road is greatly improved and the speed of the inspection on the road is greatly increased, and the in-time effective data reference is provided for road construction maintenance and management of a high-speed road department.
Owner:QINGDAO XIUSHAN MOBILE SURVEYING CO LTD

A resource allocation, transmission method and device for reference signals

The invention discloses a resource distribution method of reference signals, comprising distributing a code channel for the reference signal in a basic frequency hopping bandwidth; and distributing different frequency hopping bandwidths for reference signals in at least two code channels. The invention also discloses a resource distribution device of reference signals, a transmitting method and device of reference signals. With the invention, reference signals with different bandwidths can exist simultaneously, different request of users for the bandwidth can be satisfied. The method can support that a plurality of users simultaneously perform quality measurement of channels with different bandwidths when the method is used for channel quality measurement, thereby increasing flexibility of the system; at the same time, sequences used by the code channels adopt the sequences with the CAZAC characteristic, channel estimation performance is improved, in addition, with the invention according to the invention, the system avoids generation of sequences with different lengths, thereby avoiding interference between short and long sequences in surrounding cells and reducing the complexity of sequence design.
Owner:HUAWEI TECH CO LTD

Network television direct broadcasting system

The invention provides a network television direct broadcasting system. The system comprises a streaming media signal acquisition server, a streaming media signal receiving server and a streaming media content transmitting server, wherein the streaming media signal acquisition server is used for acquiring the original streaming media signal from a program signal source in real time and generating a streaming media direct broadcasting file by coding; the streaming media signal receiving server is used for acquiring the streaming media direct broadcasting file from the program signal source in real time and buffering streaming segments; the buffering of the streaming segments is to establish an index for each key frame of the streaming media direct broadcasting file; and the streaming media content transmitting server is used for acquiring the streaming media direct broadcasting file from the streaming media signal receiving server and transmitting the streaming media direct broadcasting file to a network player for playing in real time. The system has the functions of direct broadcasting, playback, multi-screen signal acquisition, code optimization, multi-rate coding, automatic cutting, multi-packet transmission and the like.
Owner:CHINA DIGITAL VIDEO BEIJING
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