CN210915390U

CN210915390U - Spraying plate type liquid distributor with guide pipe

Info

Publication number: CN210915390U
Application number: CN201921792513.5U
Authority: CN
Inventors: 牟兴森; 马星臣; 梁刚涛; 沈胜强
Original assignee: Dalian University of Technology
Current assignee: Dalian University of Technology
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-07-03
Anticipated expiration: 2029-10-24

Abstract

The utility model belongs to the technical field of the liquid sprays, a spray plate-type liquid distributor with pipe is disclosed, include: the middle of the shell is provided with a spray chamber; the guide pipes are arranged on the bottom surface of the spray chamber according to actual requirements, have certain heights and are the same, and can be arranged to form a certain included angle with the bottom surface according to actual conditions; the baffle is positioned on one side of the spray chamber and separates the water inlet chamber from the spray chamber, and the bottom surface or the side surface of the water inlet chamber is provided with a water inlet; and the overflow plate is positioned on the other side of the spray chamber and separates the spray chamber from the overflow chamber, and the overflow chamber is provided with an overflow port. The utility model discloses a pipe, baffle and overflow plate isotructure can effectively reduce the inflow flow field to the influence that sprays the effect, prevents to spout the emergence of phenomenon to one side, guarantees the homogeneity of cloth liquid and the stability of spraying density.

Description

Spraying plate type liquid distributor with guide pipe

Technical Field

The utility model belongs to the technical field of falling liquid film technology liquid sprays, concretely relates to plate-type liquid distributor sprays with pipe.

Background

At present, a large number of falling film evaporators exist in a seawater desalination system, an absorption refrigeration system and a steam compression refrigeration system, a liquid distributor is one of important components, and the performance of the liquid distributor determines whether the whole system can normally and efficiently operate. The liquid distributor has the main function of uniformly distributing fluid entering the falling film evaporator, so that the falling film thickness on each heat exchange tube can ensure sufficient heat exchange and the dry wall phenomenon can not occur.

At present, the common liquid distributors for horizontal tube falling film evaporation generally include a nozzle type liquid distributor, a spray tube type liquid distributor and a spray plate type liquid distributor. The principle of the spray plate type liquid distributor is as follows; the liquid is conveyed to the spraying plate, flows out from holes or grooves formed in the spraying plate, falls onto the working tubes in the lower row under the action of gravity, and forms a falling liquid film on the tube bundles or the tube rows. The method has a simple structure, but is very easily influenced by an unstable flow field near a spraying port, so that the local spraying density is seriously uneven, and the efficiency of the whole system is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem among the prior art, providing a liquid spray set, it can effectively avoid spouting to one side to it has makes local spray density more stable even advantage in time and space.

The technical scheme of the utility model:

a spray plate type liquid distributor with a guide pipe comprises a shell 1, wherein the shell 1 is of an open box structure, and a spray chamber 5 is arranged in the middle of the box structure and is used for providing liquid with a certain liquid level height for the guide pipe 4; the guide pipes 4 are uniformly arranged on the bottom surface of the spray chamber 5, the guide pipes 4 penetrate through the bottom surface and have certain height, and the guide pipes 4 are arranged perpendicular to the bottom surface of the spray chamber 5 or form a certain included angle with the bottom surface of the spray chamber 5 according to actual conditions; the two ends of the partition plate 2 are connected to the inner wall of the shell 1, the partition plate 2 is used for separating the water inlet chamber 6 from the spray chamber 5, and the phenomenon that the flow of water at the water inlet 7 is unstable to disturb a flow field around the inlet of the conduit 4 to generate inclined spray is prevented; the bottom surface or the side surface of the water inlet chamber 6 is provided with a water inlet 7 which is connected with a water supply device; the overflow plate 3, the both ends of overflow plate 3 are connected on 1 inner wall of casing, and the separation of spray room 5 and overflow room 8 is realized to overflow plate 3, ensures that 5 water levels of spray room are unchangeable basically, and overflow room 8 sets up overflow mouth 9.

The height of the baffle plate 2 and the overflow plate 3 is lower than that of the shell 1.

The utility model has the advantages that: the utility model discloses spray chamber bottom evenly distributed have the pipe of same height, and the pipe has highly avoided the inflow flow field and the unstable inhomogeneous that causes that sprays of flow, and the pipe of arranging perpendicularly can prevent totally that the phenomenon of spouting to one side from producing, has ensured the homogeneity that sprays and has effectively sprayed the volume. The guide pipe can be arranged perpendicular to the bottom surface according to actual conditions, and can also have a certain inclination angle, and annular spraying, inclined spraying or other forms of spraying are formed aiming at a special liquid distribution environment; the utility model is also provided with a baffle plate which is used for separating the water inlet area from the spray chamber, thereby effectively reducing the disturbance of the water inlet flow to the flow field around the spray opening and ensuring the stability of the flow field in the spray chamber; the utility model discloses in still be equipped with the overflow plate, guaranteed the stability of spray chamber water level to spray density stability in time has been guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic cross-sectional view of the present invention.

In the figure: 1, a shell; 2, a partition board; 3, an overflow plate; 4, a conduit; 5, a spray chamber; 6, a water inlet chamber; 7, a water inlet; 8 an overflow chamber; 9 an overflow port.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 2, the utility model discloses spray plate liquid distributor includes casing 1, baffle 2, overflow plate 3, pipe 4, spray room 5, intake chamber 6, water inlet 7, overflow room 8, overflow mouth 9, and

baffle

2 and 3 casings of overflow plate divide into the three, are intake chamber 6, spray room 5 and overflow room 8 respectively, and 6 bottoms in intake chamber are equipped with the water inlet, and the fixed evenly distributed's of spray room 8 bottom surface pipe 4 that has the same height, overflow room 8 sets up overflow mouth 9.

The specific process is that the spraying fluid firstly enters the water inlet chamber 6, enters the spraying chamber 5 when the spraying fluid exceeds the height of the partition plate 2 or the height of the hole on the partition plate 2, and enters the spraying port for distributing liquid after the liquid level of the fluid in the spraying chamber 5 rises to the height of the conduit 4; when the fluid level continues to rise to the level of the overflow plate 3, the excess fluid enters the overflow chamber 8 and is discharged out of the liquid distribution device.

The above-mentioned embodiment is merely exemplary to illustrate the principles of the present invention, and not intended to limit the present invention, for example, in order to achieve the purpose of stabilizing the water level of the shower room as well, the overflow port can be set at the corresponding position on one side of the shower room to cancel the overflow plate structure. Many modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and the basic features of the present invention shall be included in the protection scope of the present invention.

Claims

1. The spray plate type liquid distributor with the guide pipe is characterized by comprising a shell (1), wherein the shell (1) is of an open box structure, and a spray chamber (5) is arranged in the middle of the box structure and is used for providing liquid with a certain liquid level height for the guide pipe (4); the guide pipes (4) are uniformly arranged on the bottom surface of the spray chamber (5), the guide pipes (4) penetrate through the bottom surface and have a certain height, and the guide pipes (4) are arranged perpendicular to the bottom surface of the spray chamber (5) or form a certain included angle with the bottom surface of the spray chamber (5); the two ends of the partition plate (2) are connected to the inner wall of the shell (1), the partition plate (2) is used for separating the water inlet chamber (6) from the spray chamber (5), and the phenomenon that the flow field around the inlet of the guide pipe (4) is disturbed to generate inclined spray due to unstable water flow of the water inlet (7) is prevented; the bottom surface or the side surface of the water inlet chamber (6) is provided with a water inlet (7) which is connected with a water supply device; the two ends of the overflow plate (3) are connected to the inner wall of the shell (1), the overflow plate (3) is used for separating the spray chamber (5) from the overflow chamber (8), the water level of the spray chamber (5) is ensured to be basically unchanged, and the overflow chamber (8) is provided with an overflow port (9).

2. The spray plate type liquid distributor with guide pipe according to claim 1, characterized in that the height of the baffle plate (2) and the overflow plate (3) is lower than the height of the shell (1).