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讲讲什么是波纹管 ?

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讲讲什么是波纹管 ?

发布日期:2018-01-08 作者:贵阳波纹管 点击:

讲讲什么是波纹管 ?


贵阳波纹管

What is a bellows?

一、波纹管分类:

1. The classification of bellows:

翡翠棋牌波纹管大致可以从以下三个方面进行分类:

The bellows can be roughly classified from the following three aspects:

1、按层数分类,可以分为单层金属波纹管和双层金属波纹管,单层波纹管拥有优越的抗冲击和抗压能力,而双层波纹管相对于单层的,刚度要小一些。但是无论怎么分类,金属波纹管质量的好都是众所周知的。

1, according to the number of layers, it can be divided into single-layer metal bellows and double-layer metal bellows。 The single layer bellows have superior impact and compression resistance, while the double deck bellows are smaller than those of single-layer ones。 But no matter how it is classified, the quality of metal bellows is well known。

2、从成型工艺来分类,金属波纹管又可分为滚压成形、液压成型模式、沉积成型以及焊接成型等金属波纹管,这些都是源于金属波纹管它的很好的可塑性和韧性的优点,所以商家可以根据大小需求不同,把波纹管设计成不同形状适合使用的波纹管,不同方法压制成的金属波纹管的性能和作用也是不同的。

2, from the forming process of the classification of metal corrugated pipe can be divided into rolling forming, hydraulic forming mode, forming and welding deposition forming metal bellows, these are the advantages of the source in the metal bellows its good plasticity and toughness, so businesses can according to the needs of different sizes, the corrugated corrugated pipe design into different shapes suitable for use, performance and effect of different methods of metal corrugated pipe is pressed into a different.

3、根据焊接金属波纹管的用途来分类,大致可分为气密水密型和卷绕型。气密水密是专门输送气体煤气或者是热水器类的金属波纹管,它有良好的密封性,可以避免漏气漏水现象发生。而卷绕型金属波纹管,大多是用来做磁卡电话机或者台灯的波纹管,这类的波纹管的安全性是要很高的;

3。 According to the use of welded metal bellows, it can be divided into air tightness type and winding type。 Air tight water density is a kind of metal bellows that specializes in gas gas or water heater。 It has good sealing ability and can avoid leakage of air leakage。 The winding metal bellows are mostly used to make the bellows of the magnetic card telephone or desk lamp, and the safety of this kind of bellows is very high。

二、波纹管的使用要点

翡翠棋牌Two. The main points of the use of bellows

金属波纹管涵虽然具有许多优点,但如果安装不当或使用不合理,就不能取得理想的效果,甚至会带来经济损失。在使用或改装时必须注意下

Although the metal corrugated pipe culvert has many advantages, but if the installation is improper or the use is unreasonable, it can not achieve the ideal effect, and even bring economic loss. It is necessary to pay attention to the use of or modification

列事项:

Listed items:

1、防止金属波纹管涵承受扭曲剪力,在拧接头螺母时,应特别注意。

1, prevent the metal corrugated pipe culvert to bear the twisted shear, and should pay special attention to the screw joint nut.

2、合理选取实际弯曲半径R。R可按下式选取:R=KRmin。为波纹管许用最小弯曲半径。K为经验系数。K值选得太小,软管径反复弯曲,易产生疲劳破坏和应力集中;K值太大,则引起材料浪费并会给布置带来困难。一般在1~2。2范围内选取。

2. The actual bending radius R is selected reasonably. R can be pressed to select: R=KRmin. The minimum bending radius is allowed for the bellows. K is a coefficient of experience. The K value is too small and the hose diameter is bending repeatedly. It is easy to produce fatigue damage and stress concentration. The K value is too large, which causes the waste of materials and brings difficulties to the layout. It is generally in 1~2. 2 within the range.

3、在使用过程中,要保证软管编织网套不受磕、碰、磨、撞等方面的机械损伤。

3, in the use of the process, to ensure that the hose weave net sleeve is not subject to mechanical damage such as knock, touch, grinding, collision and so on。

4、正确选择金属波纹管公称长度L。波纹管的价格较高,长度取得太长,会增加不必要的投资,也会增加流动阻力,还可能引起附加振动。而长度不够,易在接头焊缝处弯曲,那金属波纹管不能在自然弯曲状态下工作,使用寿命就会缩短。对两平行段纵向移动配置的金属波纹管,应按下式确定: L=4R十0。5S+△式中:R一软管实际弯曲半径;S一对应热压板在启闭位置间的距离;△一热压板启闭位置中心与软管固定接头端的高差。显然,将金属波纹管固定端设置在压板启闭位置中心高度上,L最短。

4, the correct selection of the nominal length of the metal bellows L。 The price of the bellows is higher and the length is too long, which will increase the unnecessary investment, increase the flow resistance, and may also cause additional vibration。 But the length is not enough, easy to bend in the weld joint, the metal bellows can not work in the natural bending state, the service life will be shortened。 The metal bellows for vertical movement configuration of two parallel segments should be pressed to determine: L=4R ten 0。 The 5S+ type: R a hose actual bending radius; a S corresponding to the hot plate in the opening and closing position of the distance between a hot plate opening height; a closed position and fixed ends of the hose center。 It is obvious that the fixed end of the metal bellows is set at the center height of the press and closed position, and the L is the shortest。


三、贵阳波纹管认为预应力金属波纹管的优点

Three. The advantages of the bellows in Guizhou as the prestress metal bellows

1、预应力金属波纹管采用双螺纹,强凰刚度等性能指标比采用单螺纹好。

1, the prestressed metal bellows with double thread, strong Phoenix stiffness than the single thread performance is good。

2、与混凝土粘结好,工程适应性强。能保证钢绞线孔道有较好的质量,达到直线平直,曲线圆滑,对于大跨径桥梁的长钢束,其优越性更显突出。

2。 Good adhesion to concrete and strong adaptability in engineering。 To ensure the steel wire channel has better quality, reach the line straight, smooth curves, steel beam for long-span bridges, its superiority is more prominent。

3、管道摩阻损失小。由于预应力金属波纹管与钢绞线为点接触,管道的摩擦系数和偏差系数小,从而减小摩阻损失,增大有效预应力。经多次试验,钢绞线与管道壁的摩擦系数拜值为0。16~0。22,平均为0。19;偏差系数k值,为(0。6~1。0)x10一sl。,平均为o。8x10一3Zm。 4、预应力金属波纹管的工效高,经济效益显著。使用波纹管能保证工程质量,且操作方便,穿束方便,能缩短工期,节省投资,经济效益显著。

3, the loss of pipe friction is small. Due to the point contact between the prestressed metal bellows and the steel strands, the friction coefficient and the deviation coefficient of the pipe are small, thus reducing the friction loss and increasing the effective prestress. After many tests, the friction coefficient of the steel strand and the pipe wall is 0. 16~0. 22, the average is 0. 19; the deviation coefficient K value is (0.  6~1. 0) X10 a sl. The average is o. 8x10 a 3Zm. 4. The prestress metal bellows have high efficiency and remarkable economic benefit. The use of bellows can ensure the quality of the project, easy to operate, easy to wear, shorten the time limit, save investment, and have significant economic benefits.

四、使用金属波纹管的注意事项 采用金属波纹管能保证预应力管道有好的质量,并利于穿束,保证钢束位置。 1、由于卷好的金属波纹管长度较长,体积较大,一般是工程单位向厂方提规格、数量,由厂方带设备及材料到施工现场加工。这样既可大大减少波纹管的损耗(短头、碰伤、锈蚀等),又能满足需方的各项要求,并节约经费。 2、金属波纹管现场卷制好后,应存放在千燥场地,下面用档距为1。6m的木板多档架空,上面覆盖防雨油布等遮盖物,堆放高度不宜超过7m。 3、搬运过程中轻拿轻放,不得同其它材料、设备混装。如一次施工用量大,可使用木框架装运,而不宜直接用钢丝绳大捆绑扎吊运。 4、金属波纹管安装后,不得在管子上面堆放其它材料和杂物,以免管道受到碰压变形。

Four, attention should be paid to the use of metal bellows. Metal bellows can ensure good quality of prestressed pipes, and facilitate wear and ensure the location of steel bunches. 1, as the rolled metal bellows are long and large in volume, the general specification is for the engineering units to make specifications and quantities to the factory, and the factory will bring the equipment and materials to the construction site.  This can greatly reduce the loss of bellows (short head, bruise, corrosion, etc.), and can meet the requirements of the demand side, and save funds. 2, metal bellows site rolled, should be stored in a dry place, the span is 1. 6m board file overhead, covered with tarpaulin rain cover, stacking height should not exceed 7m. 3, in the process of handling gently, not with other materials, mixing equipment. If a large amount of construction is used, it can be shipped with a wooden frame, but it is not suitable to be directly tied with a wire rope. 4. After the installation of the metal bellows, no other materials and sundries should not be stacked on the pipe, so as to prevent the pipe from being pressed and deformed.


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