CN103512286B - A kind of diffusing device - Google Patents
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- CN103512286B CN103512286B CN201310451265.9A CN201310451265A CN103512286B CN 103512286 B CN103512286 B CN 103512286B CN 201310451265 A CN201310451265 A CN 201310451265A CN 103512286 B CN103512286 B CN 103512286B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000012530 fluid Substances 0.000 claims abstract description 32
- 239000011148 porous material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 238000009991 scouring Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
本发明公开了一种散流装置，该散流装置安装于布水管道上，包括有管嘴与散流体，管嘴与所述布水管道上的布水孔相连接，所述的散流体包括有外层、内层，外层与内层之间通过相互配合的连接柱与卡槽固定连接，此外，所述散流体分为两段，一段为球面部分、一段为径向圆盘面部分，所述管嘴与外层的球面部分相连，流体通过管嘴从散流体内、外层的缝隙进行散流。该散流装置可安装于多种布水器（八角型布水器、直线型布水器等）的布水管道上，其结构简单，不易堵塞，可有效地增大布水长度，减小布水口流速。
The invention discloses a diffuser device, which is installed on a water distribution pipeline and includes a nozzle and a diffuser, the nozzle is connected with a water distribution hole on the water distribution pipeline, and the diffuser It includes an outer layer and an inner layer, and the outer layer and the inner layer are fixedly connected to the card slot through a connecting column that cooperates with each other. In addition, the diffuser is divided into two sections, one section is a spherical part, and the other section is a radial disc surface part, the nozzle is connected with the spherical part of the outer layer, and the fluid is diffused from the gap between the inner and outer layers of the diffuser through the nozzle. The diffuser can be installed on the water distribution pipes of various water distributors (octagonal water distributors, linear water distributors, etc.). Distributor outlet velocity.
Description
技术领域 technical field
本发明涉及一种用于自然分层法水蓄冷可有效降低布水口流速的技术，具体地说是一种散流装置。 The invention relates to a technique for effectively reducing the flow velocity of a water distribution outlet for water storage in a natural stratification method, in particular to a diffuser.
背景技术 Background technique
自然分层技术越来越多地被运用到水蓄冷系统中，而该技术的关键在于设计合理有效的布水系统，以减小斜温层厚度，提高蓄冷效率。目前现有的布水系统尽管已较多的采用多次布水并配合各类新型布水器的方式，但是针对较大流量的水蓄冷系统而言，仍然未能普遍取得较好的斜温层效果，这主要是由于这些布水方法未能将布水口的流速控制的足够低。 Natural stratification technology is increasingly being used in water storage systems, and the key to this technology is to design a reasonable and effective water distribution system to reduce the thickness of the thermocline layer and improve the storage efficiency. Although the existing water distribution system has adopted multiple water distribution and various new water distributors, it still fails to achieve a good slope temperature for the water storage system with a large flow rate. This is mainly due to the failure of these water distribution methods to control the flow rate of the water distribution port low enough.
而布水系统的设计好坏主要取决于与斜温层相关的水力学特性参数弗兰德数（Fr）以及布水口雷诺数。由于只有当Fr≤1时，进口水流中浮力大于惯性力，即可形成很好的重力流，即冷热水的混合现象并不明显，因此一般设计的原则会使Fr≤1，根据Fr公式：Fr=q/(ghi 3(ρi-ρn)/ρn)0.5，其中q为布水器单位长度的体积流量（m3/m﹒s），而q=Q/L,Q为通过布水器的最大流量（m3/h）,L为布水器的有效长度（m）；g为重力加速度；hi为布水器最小进口高度（m）；ρi为进口水密度（kg/m3）；ρn为周围水密度（kg/m3）。而决定斜温层厚度的另一重要参数为布水口Re数，Re为q与水的运动粘度之比。综上可以发现，流量越大，Fr数及进出水口Re越大，只能通过提高布水长度L，以减小单位长度水的体积流量q，从而实现较低的布水口流速，以减少冷热水混合。 The design of the water distribution system mainly depends on the hydraulic characteristic parameters related to the thermocline layer, the Flanders number (Fr) and the Reynolds number of the water distribution outlet. Since only when Fr≤1, the buoyancy force in the inlet water flow is greater than the inertial force, a good gravity flow can be formed, that is, the mixing phenomenon of cold and hot water is not obvious, so the general design principle will make Fr≤1, according to the Fr formula : Fr=q/(gh i 3 (ρ i- ρ n )/ρ n ) 0.5 , where q is the volumetric flow per unit length of the water distributor (m 3 /m.s), and q=Q/L,Q is the maximum flow through the water distributor (m 3 /h), L is the effective length of the water distributor (m); g is the acceleration of gravity; hi is the minimum inlet height of the water distributor (m); ρ i is the inlet water density (kg/m 3 ); ρ n is the surrounding water density (kg/m 3 ). Another important parameter that determines the thickness of the thermocline layer is the Re number of the outlet, and Re is the ratio of q to the kinematic viscosity of water. In summary, it can be found that the greater the flow rate, the greater the Fr number and the Re of the water inlet and outlet. The only way to reduce the volumetric flow q of water per unit length is to increase the water distribution length L, so as to achieve a lower flow rate at the water distribution port to reduce cooling. hot water to mix.
发明内容 Contents of the invention
本发明的目的在于提供一种散流装置，可进一步增大布水器的布水长度，降低布水口的流速，压缩斜温层厚度，提高蓄冷效率的散流装置。它可安装于多种布水器（八角型布水器、直线型布水器等）的布水管道上，与其布水孔连接，其结构简单，不易堵塞，可有效地增大布水长度，减小布水口流速。 The object of the present invention is to provide a diffuser, which can further increase the water distribution length of the water distributor, reduce the flow velocity of the water distributor, compress the thickness of the thermocline layer, and improve the cooling efficiency of the diffuser. It can be installed on the water distribution pipes of various water distributors (octagonal water distributors, linear water distributors, etc.), and connected to its water distribution holes. Its structure is simple, not easy to block, and can effectively increase the length of water distribution. , to reduce the flow velocity of the nozzle.
本发明解决其技术问题所采用的技术方案为： The technical scheme that the present invention solves its technical problem adopts is:
一种散流装置，该散流装置安装于布水管道上，其特征在于，该散流装置包括有管嘴与散流体，管嘴与所述布水管道上的布水孔相连接，所述散流体包括有外层、内层，外层与内层之间通过相互配合的连接柱与卡槽固定连接，所述散流体分为两段，一段为球面部分、一段为径向圆盘面部分，所述管嘴与外层的球面部分相连，流体通过管嘴从散流体内、外层的缝隙进行散流。 A diffuser, which is installed on a water distribution pipeline, is characterized in that the diffuser includes a nozzle and a diffuser, and the nozzle is connected to a water distribution hole on the water distribution pipeline. The dispersing fluid includes an outer layer and an inner layer, and the outer layer and the inner layer are fixedly connected to the slot through the connecting column that cooperates with each other. The dispersing fluid is divided into two sections, one section is a spherical part, and the other section is a radial disc The surface part, the nozzle is connected with the spherical part of the outer layer, and the fluid diffuses from the gap between the inner and outer layers of the diffuser through the nozzle.
所述散流体外层呈帽状，且管嘴的轴线与散流体的轴线相重合。 The outer layer of the diffuser is cap-shaped, and the axis of the nozzle coincides with the axis of the diffuser.
所述散流体外层圆盘面部分内侧均匀的设有4个连接柱，且散流体内层与外层连接柱的相应位置设有4个卡槽。 The inside of the disc surface of the outer layer of the diffuser is uniformly provided with 4 connecting columns, and the corresponding positions of the inner layer of the diffuser and the outer layer of the connecting columns are provided with 4 slots.
流体通过管嘴进入散流体内层，先通过一段球面，再通过一段径向的圆盘面，从而实现整流及降低流速的目的。 The fluid enters the inner layer of the diffused fluid through the nozzle, first passes through a section of spherical surface, and then passes through a section of radial disc surface, so as to achieve the purpose of rectification and reduction of flow velocity.
散流体内层的球面，利用附壁效应降低流速，即流体离开本来的流动方向，改为随著凸出的物体流动，当流体与它流过的物体表面之间存在面摩擦时，流体的流速会减慢。 The spherical surface of the inner layer of the diffuse fluid uses the Coanda effect to reduce the flow velocity, that is, the fluid leaves the original flow direction and flows with the protruding object. When there is surface friction between the fluid and the surface of the object it flows through, the flow of the fluid The flow rate will slow down.
流体通过内层球面流向内、外层的圆盘面之间，既可整流，又可在流经上一段球面的基础上进一步加大了布水长度，从而使得流体的出口流速得以明显的降低。 The fluid flows between the inner and outer disc surfaces through the inner spherical surface, which can not only rectify, but also increase the length of water distribution on the basis of flowing through the previous spherical surface, so that the outlet velocity of the fluid can be significantly reduced .
流体通过散流体内、外层的缝隙进行散流，对内层表面有较强的冲刷能力，因此可很大程度降低结垢的可能。 The fluid diffuses through the gaps in the inner and outer layers of the diffuser, and has a strong scouring ability on the surface of the inner layer, so the possibility of fouling can be greatly reduced.
本发明使流体通过管嘴进入散流体内层，先通过一段球面，再通过一段径向的圆盘面，从而实现整流及降低流速的目的。通过球面主要是使流体离开本来的流动方向，改为随著凸出的物体流动，当流体与它流过的物体表面之间存在面摩擦时，流体的流速会减慢，而流体再通过内层球面流向内、外层的圆盘面之间，即类似于径向圆盘型布水器的原理，即可整流，又在流经上一段球面的基础上进一步加大了布水长度。即是由于该装置流量通道的改变，增强了线性流，从而整个布水系统在前一级布水的基础上加大了散流长度。 The invention allows the fluid to enter the inner layer of the diffused fluid through the nozzle, first pass through a section of spherical surface, and then pass through a section of radial disk surface, so as to achieve the purpose of rectifying and reducing the flow velocity. Passing through the spherical surface is mainly to make the fluid leave the original flow direction and flow with the protruding object instead. When there is surface friction between the fluid and the surface of the object it flows through, the flow velocity of the fluid will slow down, and the fluid will pass through the inner surface again. The spherical surface of the first layer flows between the inner and outer disc surfaces, which is similar to the principle of the radial disc water distributor, which can rectify the flow, and further increase the length of the water distribution on the basis of flowing through the upper spherical surface. That is, due to the change of the flow channel of the device, the linear flow is enhanced, so that the entire water distribution system increases the length of the diffuse flow on the basis of the previous level of water distribution.
本发明的优势在于：在各类布水系统的末端安装该装置，布水长度会得到明显的增大，而由于流体通过了球面以及径向圆盘面，使得流体的出口流速得以明显的降低，且还有利于均匀布水；另外，由于流体是通过散流体内、外层的缝隙，对内层表面有较强的冲刷能力，因此可很大程度降低结垢的可能。 The advantage of the present invention is that: installing the device at the end of various water distribution systems can significantly increase the length of water distribution, and since the fluid passes through the spherical surface and the radial disk surface, the outlet velocity of the fluid can be significantly reduced , and it is also conducive to uniform water distribution; in addition, because the fluid passes through the gap between the inner and outer layers of the diffuser, it has a strong scouring ability on the surface of the inner layer, so the possibility of scaling can be greatly reduced.
附图说明 Description of drawings
图1是本发明的安装示意图。 Fig. 1 is the installation diagram of the present invention.
图2是本发明的结构示意图。 Fig. 2 is a structural schematic diagram of the present invention.
图3是图2的剖面视图。 FIG. 3 is a sectional view of FIG. 2 .
具体实施方式 Detailed ways
以下结合附图对本发明作进一步的说明： The present invention will be further described below in conjunction with accompanying drawing:
一种散流装置，该散流装置安装于布水管道上，该散流装置1包括有管嘴3与散流体4，管嘴3与布水管道2上的布水孔相连接，散流体4包括有外层6、内层5，外层6与内层5之间通过相互配合的连接柱7与卡槽8固定连接，散流体4包括有球面部分9、径向圆盘面部分10，所述管嘴3与外层的球面部分相连，且管嘴3的轴线与散流体4的轴线相重合。 A diffuser device, the diffuser device is installed on the water distribution pipeline, the diffuser device 1 includes a nozzle 3 and a diffuser 4, the nozzle 3 is connected to the water distribution hole on the water distribution pipeline 2, the diffuser 4 includes an outer layer 6 and an inner layer 5, and the outer layer 6 and the inner layer 5 are fixedly connected to the slot 8 through a connecting column 7 that cooperates with each other. The diffuser 4 includes a spherical part 9 and a radial disc part 10 , the nozzle 3 is connected to the spherical part of the outer layer, and the axis of the nozzle 3 coincides with the axis of the diffuser 4 .
散流体外层圆盘面内侧均匀的设有4个连接柱，且散流体内层与外层连接柱的相应位置设有4个卡槽。 Four connecting columns are uniformly arranged on the inner side of the disc surface of the outer layer of the diffuser, and four slots are provided at the corresponding positions of the connecting columns between the inner layer of the diffuser and the outer layer.
流体通过散流体内、外层的缝隙进行散流，散流体外层6主要用于整流，而水流更多地会沿着内层5进行散流。其中，所述散流体的内层5与外层6通过连接柱7与卡槽8相连接，管嘴3与散流体外层6整体成型，所述散流体4主要包括两段，一段为球面9，一段为径向圆盘面10，整个散流体呈帽状。 The fluid is diffused through the gaps in the inner and outer layers of the diffuser, the outer layer 6 of the diffuser is mainly used for rectification, and the water flow is mostly diffused along the inner layer 5 . Wherein, the inner layer 5 and the outer layer 6 of the diffuser are connected to the slot 8 through the connecting column 7, the nozzle 3 and the outer layer 6 of the diffuser are integrally formed, and the diffuser 4 mainly includes two sections, one of which is spherical 9. One section is a radial disc surface 10, and the entire diffuser is in the shape of a cap.
本发明所述一种散流装置的球面9是利用了附壁效应来降低流体的流速，即流体离开本来的流动方向，改为随著凸出的物体流动，当流体与它流过的物体表面之间存在面摩擦时，流体的流速会减慢。而另外，本发明所述的一种散流装置的径向圆盘面10，则是参照径向圆盘型布水器的基本原理，流体通过内层球面流经内、外层之间的圆盘面之间，既可整流，又可进一步加大布水长度，这主要由于因装置流量通道的改变，增强了线性流，从而整个布水系统在前一级布水的基础上加大了散流长度，而由于流体是通过散流体内、外层的缝隙，对内层表面有较强的冲刷能力，因此可很大程度降低结垢的可能。 The spherical surface 9 of a kind of diffusion device of the present invention utilizes the Coanda effect to reduce the flow velocity of the fluid, that is, the fluid leaves the original flow direction and flows with the protruding object instead. When the fluid and the object it flows through When there is surface friction between surfaces, the flow of fluid slows down. In addition, the radial disc surface 10 of a diffuser device according to the present invention refers to the basic principle of the radial disc water distributor, and the fluid flows through the inner layer spherical surface and the space between the inner layer and the outer layer. Between the disc surfaces, it can be rectified and the length of water distribution can be further increased. This is mainly because the linear flow is enhanced due to the change of the flow channel of the device, so that the entire water distribution system is enlarged on the basis of the previous level of water distribution. The length of the diffused flow is reduced, and since the fluid passes through the gap between the inner and outer layers of the diffused fluid, it has a strong scouring ability on the surface of the inner layer, so the possibility of fouling can be greatly reduced.
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| CN104296289A (en) * | 2014-10-17 | 2015-01-21 | 中山市蓝水能源科技发展有限公司 | A water distributor in a thermospheric water storage system |
| CN104596003B (en) * | 2015-01-04 | 2017-08-25 | 深圳市奥宇节能技术股份有限公司 | Air conditioner water cold accumulation system water-distributing device |
| CN107045079B (en) * | 2017-05-28 | 2019-05-03 | 西南交通大学 | A system and method for multi-directional monitoring of impingement dispersion |
| CN108775662B (en) * | 2018-07-24 | 2024-02-02 | 中国科学院广州能源研究所 | Secondary self-rectifying water distributor |
| CN115325717B (en) * | 2022-10-14 | 2023-01-31 | 中国核动力研究设计院 | Heat exchange device and Brayton cycle system |
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