A diversion-type liquid distribution plate in a falling film evaporator and its application method
A falling-film evaporator and liquid distribution technology, applied in separation methods, evaporator accessories, chemical instruments and methods, etc., can solve problems such as poor liquid distribution uniformity, and achieve the effect of reducing pressure loss and reducing obstruction.
Active Publication Date: 2022-04-15
江苏一万节能科技股份有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a flow-guided liquid distribution plate in a falling film evaporator and its use method, which solves the technical problem of poor liquid distribution uniformity when the distribution plate is distributed in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0038] Such as Figure 1-3 As shown, the guide type liquid distribution plate in a falling film evaporator provided in this embodiment includes:
[0039] Distribution plate 1;
[0040] A plurality of airfoil guide vanes 2, the airfoil guide vanes 2 are distributed on the distribution plate 1 at intervals, and the blade roots of the airfoil guide vanes 2 are connected to the distribution plate 1 through a vertical smooth transition ;
[0041] Sieve holes 3 are provided on the distribution plate 1 at intervals.
[0042] The embodiment of the present application discloses a liquid distribution plate, which can make the liquid more concentrated when it enters, and the velocity distribution is more uniform; the orifice near the incoming liquid can make the liquid flow downward due to the action of gravity; the airfoil guides the flow Due to the accelerated speed of the liquid on the blade part, and the two streams of liquid ejected in the same direction and faster speed, the sta...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a flow-guiding liquid distribution plate and a method in a falling film evaporator, which is composed of two parts: a distribution plate and an airfoil guide vane. Adding airfoil guide vanes to the vortex part of the liquid flow can change the flow direction of the liquid, so that the liquid can be evenly distributed on the plate under the same working conditions. The front end of the added airfoil guide vane adopts a shape with a small leading edge radius, and the leading edge begins to separate from the liquid when the angle of attack is small, so as to reduce the obstruction of the guide vane to the incoming liquid, thereby reducing the pressure of the liquid. loss; the shape of the tail end of the guide vane is designed as a sharp shape, which can well control the shedding frequency of the vortex at the outflow and the thickness of the boundary layer near the guide vane. Cutting and combing into countless small vortices, and effectively separating and guiding the liquid at the root of the guide vane, the invention solves the technical problem of poor liquid distribution uniformity in the prior art when the distribution plate is distributing.
Description
technical field [0001] The invention relates to the technical field of falling film evaporator accessories, in particular to a flow-guiding liquid distribution plate in a falling film evaporator and a method for using the same. Background technique [0002] In food, pharmaceutical, seawater desalination, petrochemical and other industries, the application of falling film evaporators is ubiquitous, and the normal operation of falling film evaporators is inseparable from the reasonable arrangement of liquid distributors, so that the liquid is evenly distributed on the sieve plate On the top, the liquid film is evenly distributed along the periphery of the liquid pipe. Therefore, the fluid distribution plate is a key component of the falling film evaporator. Whether its design is reasonable or not directly affects the liquid film forming effect, heat and mass transfer efficiency and operation stability of the evaporator, thereby affecting production capacity, product effect and...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B01D1/22B01D1/30
CPCB01D1/22B01D1/30
Inventor 何纬峰刘允韩东洪忠顾有三岳晨蒲文灏
Owner 江苏一万节能科技股份有限公司