Jiangsu Shemar Electric Co., Ltd.

Jiangsu Shenma Electric Co., Ltd.

Jiangsu University

Shanghai Shemar Power Engineering Co., Ltd

Bin Ma

Jie Yu

Jiang Fang

Dequan Li

Qing Huang

Chao Liu

Aoyun Zhuang

Guiyan Ni

Bing Wang

Jie Tian

Jie Ma

Xuejun Cai

Shuchen Zhou

Yong Qiu

Qingzhan Wang

Ronghua Wang

Xizhong Liu

Weidi Cao

Yong Zhu

Libin Yang

Jianquan Jiang

Liquan Tang

Huaxi Xu

Xinyi Tang

Ke Rui

Yungang Wang

Shengjun Wang

A wall bushing, comprising a head assembly, a conductive rod, and a connecting terminal sealing and covering the head assembly and the conductive rod. The connecting terminal and the conductive rod are electrically connected. The head assembly includes a transition tank and a transition plate that are connected to each other. An upper end of the transition tank is provided with a first through hole, and a lower end of the transition tank is hole-through. The transition plate is provided with a second through hole. The conductive rod extends through the first through hole and the second through hole. The transition tank and the transition plate are fixedly connected such that an accommodation cavity is formed around the conductive rod and in the transition tank.

Wall bushing

The present disclosure discloses a composite crossarm and a power transmission tower. The composite crossarm includes two post insulators and two suspension insulators. Of the two post insulators and the two suspension insulators, one ends are configured to be connected to a tower body of a power transmission tower, and the other ends are connected together to form an end portion of the composite crossarm to hang a power transmission line. The two suspension insulators are located on same sides of the two post insulators and respectively arranged adjacent to the two post insulators. At the same time, an angle between the two post insulators ranges from 20° to 50°, and an angle between the post insulator and the suspension insulator adjacent thereto ranges from 15° to 45°. The composite crossarm according to the present disclosure is highly stable and convenient to for mounting grading ring.

Composite crossarm and power transmission tower

The present disclosure specifically discloses a substation frame, comprising: at least two supporting assemblies arranged at intervals along a first direction, at least one of the supporting assemblies comprising a first supporting part and a second supporting part that are connected to each other; and a beam assembly provided between two adjacent supporting assemblies. The first supporting part is located between the beam assembly and the second supporting part. The first supporting part is made of composite insulating material, and the second supporting part is made of metal material.

Substation frame

The present disclosure discloses a composite crossarm and a power transmission tower. The composite crossarm includes a post insulator and three suspension insulators. The post insulator and the suspension insulators each has an end configured to be connected to a tower body of the power transmission tower, and another end connected together to form an end of the composite crossarm that is configured to attach a transmission line. The three suspension insulators are arranged at intervals around the post insulator. Axes of two suspension insulators and an axis of the post insulator are in the same plane. The two suspension insulators whose axes are in the same plane as the axis of the post insulator are defined as first suspension insulators, the remaining suspension insulator is defined as a second suspension insulator. The two first suspension insulators form an angle ranged from 45° to 90°.

The present disclosure discloses a substation frame comprising: a supporting assembly comprising at least two supporting posts arranged at intervals, the at least two supporting posts comprising one side supporting post at each end; a beam assembly comprising a beam provided between every two adjacent supporting posts; and a side wire attaching assembly provided on at least one side supporting post and positioned on a side of the side supporting post facing away from the beam.

Provided is a flange () connected to an end of an insulating tube (), the flange includes a flange plate () abutting the end of the insulating tube, a groove () recessed toward inside of the insulating tube is disposed on the flange plate, the groove is connected to the insulating tube, an inflation valve () is disposed within the groove, the groove is filled with sealing material () which covers the inflation valve. Provided are also insulator and insulated support post using the flange. The flange, the insulator and insulated support post help to protect the inflation valve from external force and the groove is filled with the sealing material to ensure the sealing performance of the flange.

Flange, insulator and insulated support post

Disclosed in the present invention is a post insulator, comprising a hollow insulating tube, a shed positioned on a periphery of the hollow insulating tube, and an upper flange and a lower flange provided at two ends of the hollow insulating tube, wherein gas is sealed inside of the hollow insulating tube, and the absolute pressure of the gas is 0.1-0.15 MPa. Further disclosed is an insulated support post formed by the end-to-end connection of the post insulators. The post insulator and the insulated support post of the present invention solve an interface problem present in internal insulating solid material filling, and also solve a gas leaking problem that occurs when using high-pressure gas filling, such that the post insulator does not need to be detected and maintained. At the same time, the margin of the micro-water control range is improved, and micro-water control and production difficulty is reduced.

Post insulator and insulated support post

A composite crossarm fixed on a pole body of a transmission pole is disclosed. The composite crossarm includes: a core rod, an insulating layer and a load-bearing member. The insulating layer and the load-bearing member cover and are fixed to an outer peripheral surface of the core rod. The load-bearing member is positioned in a middle region of the core rod connected to the pole body, and the insulating layer is positioned in regions of the core rod other than the middle region. A transmission pole using the above composite crossarm is also disclosed. In the above manner, the load-bearing member is arranged at a position where the core rod is connected to the pole body in advance. On one hand, the core rod is able to be connected to the pole body without providing with a hole. On the other hand, the load caused by the fixed connection is applied on the load-bearing member directly, with no damage to the insulating layer. Both the load-bearing member and the insulating layer cover and are fixed on the outer peripheral surface of the core rod, so that the core rod is protected from external corrosion, to ensure the mechanical properties of the composite crossarm.

Composite crossarm and transmission pole

An overhead power distribution line () comprises a tension resistant pole (), two composite crossbeams () and tension resistant fixing members (). A middle portion of the composite crossbeam () is horizontally secured on the tension resistant pole (), and end portions of the composite crossbeam () are connected to the tension resistant fixing members (). The tension resistant fixing members () enable the two composite crossbeams () to integrally connect and are for fixing conducting lines. With the above configuration, two composite crossbeams () are secured on the same horizontal plane of the tension resistant pole (), thus satisfying vertical tension of a tension resistant requirement. Further, by using composited crossbeam bodies (), a dry arc distance is significantly increased, and electrical lightning resistance performance is enhanced, preventing incidents such as line disconnection and flashover caused by lightning strike. The composite crossbeams () are maintenance-free and do not require periodical inspection and maintenance, significantly reducing labor costs. The use of crossbeams () can further eliminate the use of tension insulators and simplify the structure of lines.

Overhead power distribution line

Provided is a cross arm with one end connected to a tower body and a free end for connecting a conducting wire. Free end comprises an end connecting piece and an extension piece. Extension piece is fixed with end connecting piece. Extension piece protrudes horizontally from end connecting piece. Conducting wire is connected to extension piece. An angle between extension piece and a cross arm center line is greater than that between conducting wire and cross arm center line. Cross arm free end includes a jumper wire device horizontally arranged on end connecting piece for hitching jumper wire. Extension piece use increases distance between conducting wire and tower body when turning angle condition is met. Gap requirement between conducting wire and tower body is met, and cross arm length increase is eliminated. Horizontally arranging jumper wire device on end connecting piece reduces distance between wire layers and tower body size.

Cross arm and angle tower and tension tower comprising the same

Provided are exosomes sourced from a granulocyte myeloid-derived suppressor cell and an application thereof. The exosomes are named as G-MDSC exo. Also provided is a use of the exosomes in preparing a drug used for suppressing autoimmune diseases. The G-MDSC exo can effectively suppress proliferation of CD4+T cells in vitro, promote induced proliferation of T regulatory (Treg) cells, alleviate foot swelling of model mice having delayed-type hypersensitivity, and suppress attacks of inflammatory bowel disease (IBD) and collagen-induced arthritis (CIA) of the mice.

Exosomes sourced from granulocytic myeloid-derived suppressor cells and application thereof

A shed housing is disclosed. The shed housing covers an insulator including at least one shed. The shed housing includes a receiving cavity allowing an upper surface and a lower surface of the shed to be received in the receiving cavity. The shed housing is provided with a mounting hole through which the insulator passes, and an opening corresponding to the mounting hole. The opening communicates the mounting hole with an outer edge of the shed housing. The mounting hole communicates with the receiving cavity. A first connecting portion and a second connecting portion cooperating with the first connecting portion are arranged respectively on both ends of the opening. When the first connecting portion is connected to the second connecting portion, the shed housing is closed along a circumferential direction. The shed housing is able to receive the entire piece of shed, and can be assembled on the shed without any additional connecting components, which is convenient and high-efficient and has good effect on preventing pollution flashover and rain flashover.

Shed housing

Disclosed are an insulated pipe and an insulated bushing. The insulated bushing () includes: an insulator () including an intermediate shed member (), and a lower flange () arranged on a lower end of the shed member; a head member () connected to an upper end of the insulator, wherein the head member includes an oil conservator () connected to the upper end of the insulator and a connecting terminal () connected to the oil conservator; and an insulated pipe () connected to the lower flange, wherein the insulated pipe includes a upper transformer pipe () and a lower oil-immersed pipe (), and the transformer pipe includes an inner pipe (), and a conductive layer arranged outside the inner pipe and configured to be grounded. The insulated pipe and the insulated bushing solve the problems of connection and sealing, and save material cost greatly.

Insulation pipe and insulation sleeve with such insulation pipe

A power transmission tower comprises a tower body () longitudinally arranged and cross arms () transversely arranged on the tower body. The tower body () is provided with a first transverse direction (Y) and a second transverse direction (X), which are perpendicular to each other, in the horizontal direction. A supporting piece (), which extends outwards from the tower body () in the first transverse direction (Y), is arranged on the power transmission tower. One end of the supporting piece () is fixed to the tower body () and the other end of the supporting piece () is a free end (). The cross arms () extend in the second transverse direction (X). One end of each cross arm () is connected to the free end () and the other end of each cross arm () is used for arranging overhead wires. The power transmission tower reduces corridor width and occupies less area.

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Nantong, China

Bin Ma