SU1233920A1 - Venturi tube - Google Patents

Description

The invention relates to the purification of dust-laden gases containing suspended solids, and can be used in metallurgical and industrial processes.

The aim of the brewing process is to increase the efficiency of filtering when cleaning dusty gases of variable flow rate and to separate the droplets of the corrosive liquid from () 3i) G110toto further distribute them in the droplet separator.

On (() H1 1 shows the device, about-I1II view: in Fig. 2, view A in Fig. I; in Fig. 3 - section BB in Fig. 1.

Venturi tube contains tangsntsial-1P) 1Y PIPELING branch pipe 1, opomaioatee device 2, subfusor 3, neck 4, diffuser 5, obg, (1 odn kaial 6, content and cut-routs 7, connected tangentially to the pack, 4 louver 4, and a means of atomic-cutting 7, connected tangentially to the pack, 4 and 7 slots, and a carrier of the cuttings 7, connected tangentially to the pack, 4 and 7, and a carrier of the cuttings 7, connected tangentially to the pack, 4 and 7, and a carrier of the cuttings 7, connected tangentially to the pack, 4, and one means of the cut-offs 7, connected to the tangential to the pack, 8, and one means of the cuttings 7, connected to the tangential to the pack, 1 kayal 6, and the carrier of the cuttings 7, connected to the tangential to the pack, 1 kaial 6, and the means of the cut-offs 7 8 with a locking and adjusting device 9 to the inlet nozzle 1. The nozzle 7 has a spray device 10.

The proposed device works in the following way.

The dusty gas from the process equipment to the gas flue gas duct through the gas pipe 11, and the inlet supply pipe 1 enters the confusor 3 of the Venturi pipe, where it is ejected using an orienting device 2. The neck 4 and the diffuser 5 pass through, the dust is moistened and the osseSut1stvennoe influence on the degree of purification of the aza also has the place of installation of the node on the pipe in the neck of the Venguri pipe.

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1.5d | -99.9

99.0

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gives a drop of liquid. Thus, the gas is cleaned from suspended particles found in it. Thanks to the tangential node to the confusor of the Venturi tube, the gas note is rotated; a single-n () stunter movement, which contributes to the turbulization of the flow and the intensification of dust sedimentation on a ca11,: 1 liquid.

In order to maintain a given rotationally unavailable motion and necessary resistance of the Venturi tube, at a varying volume of gas, a part of the dusty gas notoka in the gas duct 8 and the nozzle 7 are tangentially brought to the beginning of the neck 4.

In this way, the resistance of the Venturi tube is regulated by increasing or decreasing the turbulence of the gas flow from the throat of the Venturi tube due to a tangibly added additional volume of gas to the beginning of the throat.

The height of the supporting pipe is 0.5-0.6 the length of the neck (Fr.) with its length equal to. 1,0 to diameter of a mouth (dr.). With a neck length of 1.5 times the diameter and above, the height of the outlet pipe is 0.7-0.9 of the neck length.

In tab. Figure 1 shows the dependences of the degree of gas purification () on the height of the supply pipe (H) with a neck length of 1 dr. and 1,5 dr.

Table 1

In tab. 2 shows the dependencies of the gas cleaning wall on the installation site of sodium bpc with the neck length equal to 1 d p i 1.5 dp.

table 2

97.3 98.7

From tab. 1 it follows that a further increase in the heights of the inlet pipe ne does not increase the degree of cleaning, but only leads to an increase in the metal intensity of the installation.

In order to improve the cleaning of the gas supplied through the pipe 7, water is fed into it through the 10010 device, its device 10.

The supply of a part of the gas flow over the SMC to the throat of the Venturi tube is possible due to the difference in vacuum across the Venturi tube, i.e. at the entrance to the confusion: r: r half. The adjustment of the volume of the sucked in gas throat is carried out with the help of a porn control device 9.

In id

fig 3

Claims (3)

1. VENTURI PIPE containing a confuser with a tangential inlet pipe and an irrigation device, a neck and a diffuser, characterized in that. in order to increase the efficiency of gas purification at variable flow rates, it is equipped with a bypass channel made of interconnected gas duct and nozzle connected tangentially to the beginning of the neck, a locking-regulating device located in the channel, and an additional irrigation device located in the channel nozzle. 2. Venturi pipe by π. I, characterized in that the height of the channel nozzle is 0.5 to 0.6 of the length of the neck with its length equal to the diameter. 3. Venturi pipe but π. 1. different gem. that the height of the channel nozzle is 0.7-0.9 of the length of the neck with its length equal to 1.5 diameter or more. Riga 1 GF ”sf co with GF