RU2430769C1 - Scrubber with moving nozzle - Google Patents

Scrubber with moving nozzle Download PDF

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Publication number
RU2430769C1
RU2430769C1 RU2010129595/05A RU2010129595A RU2430769C1 RU 2430769 C1 RU2430769 C1 RU 2430769C1 RU 2010129595/05 A RU2010129595/05 A RU 2010129595/05A RU 2010129595 A RU2010129595 A RU 2010129595A RU 2430769 C1 RU2430769 C1 RU 2430769C1
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RU
Russia
Prior art keywords
nozzle
axis
mixing chamber
manifold
scrubber
Prior art date
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RU2010129595/05A
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Russian (ru)
Inventor
Олег Савельевич Кочетов (RU)
Олег Савельевич Кочетов
Мария Олеговна Стареева (RU)
Мария Олеговна Стареева
Original Assignee
Олег Савельевич Кочетов
Мария Олеговна Стареева
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Application filed by Олег Савельевич Кочетов, Мария Олеговна Стареева filed Critical Олег Савельевич Кочетов
Priority to RU2010129595/05A priority Critical patent/RU2430769C1/en
Application granted granted Critical
Publication of RU2430769C1 publication Critical patent/RU2430769C1/en

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Abstract

FIELD: process engineering.
SUBSTANCE: invention relates to wet dust separation and may be used in chemical, textile, light industries, etc, for dusty gas cleaning. Scrubber comprises case with dusty and cleaned gas branch pipes, sprinkler made up of manifold with nozzles, bottom distributing plate and top limiting plate with filler material arranged there between, liquid trap and slime discharge device. Plates and filler material are made from flexible materials. Vibrator is arranged on top and bottom plates. Every nozzle comprises axially symmetric case wit its axis perpendicular to manifold tube opening axis. Straightening element with central sleeve is arranged in nozzle on manifold tube flow opening side. Radial vanes are rigidly jointed with sleeve. Nozzle case has two ledges opposed perpendicular to nozzle axis to allows fastening to manifold by locks. Nozzle case bottom has taper throttle orifice communicated with mixing chamber arranged between throttle orifice and mixing chamber. Mixing chamber inner surface has screw-like grooves.
EFFECT: higher efficiency and reliability of dust separation.
3 dwg

Description

The invention relates to techniques for wet dust collection and can be used in chemical, textile, food, light and other industries for the purification of dusty gases.

The closest technical solution to the claimed object is a scrubber with a movable nozzle, known from RF patent No. 2280492 (prototype), comprising a housing with nozzles for dusty and purified gas, an irrigation device, a lower support and distribution plate and an upper restrictive plate, between which there is a layer nozzle, and device for removal of sludge.

The disadvantage of the prototype is the relatively low efficiency of the dust collection process due to the underdeveloped surface of the nozzle.

The technical result is an increase in the efficiency and reliability of the dust collection process, as well as a decrease in the metal consumption and vibroacoustic activity of the apparatus as a whole.

This is achieved by the fact that in a scrubber with a movable nozzle containing a housing with nozzles for dusty and purified gas, an irrigation device made in the form of a manifold with nozzles, a lower support and distribution plate and an upper restriction plate, between which there is a nozzle layer, a spray catcher and a device for the removal of sludge, the lower support and upper restrictive plates and nozzles are made of elastic materials, and a vibrator is installed on the upper and lower plates, each of the nozzles soda neighs the housing, which is made hollow, axisymmetric, whose axis is perpendicular to the axis of the hole of the manifold pipe, and on the side of the flow hole of the manifold pipe, a straightening element is installed in the nozzle, made in the form of a ring having a central sleeve, to which at least radially spaced three blades connected to the nozzle body, and the body is made with two ledges opposite to the nozzle axis perpendicular to the axis of the nozzle, through which clamps are secured through the nozzle locks is mounted on the collector, while in the lower part of the nozzle body there is a conical throttle hole connected to the mixing chamber, which is located between the throttle hole and the straightening element, and there are screw-like grooves on the inner surface of the mixing chamber, while the nozzle is made spherical in which there are non-through radial recesses, the recesses being in the form of cylindrical, conical surfaces or any surface of bodies of revolution, for example a paraboloid.

Figure 1 shows a scrubber with a movable nozzle, figure 2 - the shape of the nozzle, figure 3 is a diagram of the nozzle.

The scrubber with a movable nozzle contains a housing 1 with nozzles 2 and 3, respectively, for dusty and purified gas (air), an irrigation device containing a collector 7 with nozzles 9, a lower support and distribution plate 4 and an upper limit plate 6, between which the nozzle layer 5 is located , a spray trap 13 and a device for removing sludge 8 (Fig. 1). The lower 4 supporting distribution and upper 6 restrictive plates and nozzle 5 are made of elastic materials. A vibrator (not shown) can be installed on the lower support-distribution plate 4. On the upper restrictive plate 6 can be installed a vibrator (not shown). On the lower 4 supporting distribution and upper 6 restrictive plates can be installed on a vibrator (not shown).

The spray catcher 13 is made in the form of concentric cylindrical rings with a thickness of 1 ... 2 mm with a distance between them of 3 ... 4 mm. The spray catcher is made in the form of concentrically arranged rings having, in cross section passing through the axis of the ring, a zigzag profile, for example a sinusoidal one, moreover, the thickness of the rings is 1 ... 2 mm, and the distance between them is 3 ... 4 mm. The spray catcher is made in the form of concentrically arranged rings having a section in the section passing through the axis of the ring, a profile consisting of series-connected circles, with the rings having a maximum thickness of 3 ... 4 mm and a distance between them of 4 ... 5 mm (not shown in the drawing) .

To increase the degree of purification of the gas stream from the target component by increasing the contact area of the nozzle with the absorbent, it is made spherical in shape 10 (FIG. 2), non-through radial recesses are made in it, the recesses being in the form of a cylindrical 12, conical 11 surfaces or any surface of bodies rotation, for example a paraboloid.

The nozzle 9 for spraying liquid (absorbent) is located on the collector 7 having a flow hole 14. Each of the nozzles (Fig. 3) is made in the form of a hollow axisymmetric body 15, the axis of which is perpendicular to the axis of the collector 7, and the body is made in the form of a body of revolution formed by a second-order curve, for example, spherical, in the form of a truncated ellipsoid or rotation paraboloid, etc. A straightening element 19 is installed on the side of the flow opening 14 of the pipeline in the nozzle, which dampens the turbulence of the fluid flow and extending from the conduit to the nozzle. The straightening element is made in the form of a ring having a central sleeve with which at least three blades 20 are radially spaced and rigidly connected to the nozzle body 15. The housing 15 is made with two opposite steps, perpendicular to the axis of the nozzle, ledges 18, through which through the clamps 16 with locks 17 the nozzle is fixed to the manifold 7. In the lower part of the housing 15 of the nozzle there is a tapered calibrated throttle hole 22 connected to the mixing chamber 21, which located between the hole 22 and the straightening element. The mixing chamber 21 is intended to form a vortex turbulent flow formed at the outlet of the nozzle opening 22. For this purpose, there are helical grooves (not shown in the drawing) on the inner surface of the mixing chamber, which can be formed by turning by copying or obtained by injection molding. As a result of this, a finely dispersed and uniform jet of liquid is formed at the outlet of the nozzle.

A scrubber with a movable nozzle operates as follows.

The dusty gas stream enters the housing 1 through the inlet of the dusty gas stream 2 and meets a curtain from the nozzle 5, which is wetted with water or other absorbent from an irrigation device made in the form of a collector 7 with nozzles 9. A device 8 for removing sludge is used sludge in the form of a channel in the bottom of the housing or a separate mechanism. To ensure free movement of the nozzle 5 in the gas-liquid mixture, its density should not exceed the density of the liquid. The process of dust collection takes place in the optimal hydrodynamic regime of a gas scrubber, characterized by a regime of fully developed fluidization. To intensify the hydrodynamic regime, a vibrator can be installed on the lower support plate 4 (not shown in the drawing), or a vibrator can be installed on the upper restriction plate 6 (not shown in the drawing), or simultaneously on the lower 4 distribution and upper 6 restrictive plates can be installed on a vibrator (not shown). This will allow the scrubber to switch to the vibro-fluidized bed mode, in which the efficiency of the interaction of the nozzle 5, irrigated by the liquid, with the gas phase will increase, and consequently, will increase the overall efficiency of the apparatus. The implementation of the nozzle 5, the lower 4 of the support distribution and upper 6 restrictive plates of elastic material will allow under certain conditions to create a mode of oscillation or self-oscillation, which will also increase the efficiency of interaction of the nozzle 5 with the irrigated liquid. Moreover, to reduce the vibro-acoustic activity of the apparatus and its metal consumption, as well as to increase its reliability, the proposed device provides the following measures: a layer of soft vibration-damping material, for example, VD-17 mastic, is applied to the surface of the parts, and the ratio between the thickness of the metal and the vibration-damping coating is in the optimal range values: 1 / (2.5 ... 4).

The nozzle 9 of the irrigation device operates as follows.

Liquid under pressure enters from the nozzle inlet 14 of the manifold 7 into the nozzle and encounters a straightening element 19 in its path, which dampens the turbulence of the fluid flow from the manifold to the nozzle. The mixing chamber 21 is intended for the formation of a vortex turbulent flow formed at the outlet of the nozzle orifice 22, as a result of which a finely dispersed and uniform liquid spray is formed at the nozzle exit. The nozzle is easy to manufacture and maintain.

The scrubber can be used to clean fine dust and humidify air in ventilation units and air conditioning units, as well as in trapping mists, readily soluble dust, as well as in the process of dust collection, gas cooling and absorption of packed gas washers. The effectiveness of the proposed design of the nozzle scrubber increases due to the larger interaction surface of the nozzle in the above processes, as well as the optimization of the hydrodynamic situation and amounts to about 97% when collecting dust particles larger than 2 microns in size.

Claims (1)

  1. A scrubber with a movable nozzle, comprising a housing with nozzles for dusty and purified gas, an irrigation device made in the form of a collector with nozzles, a lower support plate and an upper restrictor plate, between which there is a nozzle layer, a spray catcher and a device for removing sludge, the lower, supporting distribution and upper, restrictive plates and nozzle are made of elastic materials, and a vibrator is installed on the upper and lower plates, characterized in that each nozzle contains t the housing, which is made hollow, axisymmetric, whose axis is perpendicular to the axis of the hole of the pipe of the collector, and on the side of the flow hole of the pipe of the collector in the nozzle there is a straightening element made in the form of a ring having a central sleeve to which at least radially spaced three blades connected to the nozzle body, and the body is made with two ledges opposite to the nozzle axis perpendicular to the axis of the nozzle, through which clamps are secured through the nozzle locks at the bottom of the nozzle body, a conical throttle hole is made, connected to the mixing chamber, which is located between the throttle hole and the straightening element, and there are helical grooves on the inner surface of the mixing chamber.
RU2010129595/05A 2010-07-19 2010-07-19 Scrubber with moving nozzle RU2430769C1 (en)

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RU2010129595/05A RU2430769C1 (en) 2010-07-19 2010-07-19 Scrubber with moving nozzle

Publications (1)

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RU2430769C1 true RU2430769C1 (en) 2011-10-10

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2531830C1 (en) * 2013-04-05 2014-10-27 Олег Савельевич Кочетов Scrubber with moving nozzle
RU2568701C1 (en) * 2015-01-20 2015-11-20 Олег Савельевич Кочетов Scrubber with moving nozzle
RU2576294C1 (en) * 2014-10-16 2016-02-27 Олег Савельевич Кочетов Kochetov's packing for scrubber
RU2581381C1 (en) * 2014-10-30 2016-04-20 Олег Савельевич Кочетов Device for water treatment
RU2591270C2 (en) * 2014-10-16 2016-07-20 Олег Савельевич Кочетов Scrubber with moving nozzle
CN111228933A (en) * 2020-02-26 2020-06-05 深圳市和科达超声设备有限公司 Laser cutting dust collector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
БОЛЬШОЙ ЭНЦИКЛОПЕДИЧЕСКИЙ СЛОВАРЬ. МАТЕМАТИКА/ Гл. ред. Ю.В. Прохоров. - М.: Большая Российская энциклопедия, 2000, с.126. КОРН Г., КОРН Т. Справочник по математике для научных работников и инженеров. Определения, теоремы, формулы. - М.: Наука, 1984, с.64-67. ЮШИН В.В. и др. Техника и технология защиты воздушной среды. - М.: Высшая школа, 2008, с.234-235, рис.5.73, 5.74. *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2531830C1 (en) * 2013-04-05 2014-10-27 Олег Савельевич Кочетов Scrubber with moving nozzle
RU2576294C1 (en) * 2014-10-16 2016-02-27 Олег Савельевич Кочетов Kochetov's packing for scrubber
RU2591270C2 (en) * 2014-10-16 2016-07-20 Олег Савельевич Кочетов Scrubber with moving nozzle
RU2581381C1 (en) * 2014-10-30 2016-04-20 Олег Савельевич Кочетов Device for water treatment
RU2568701C1 (en) * 2015-01-20 2015-11-20 Олег Савельевич Кочетов Scrubber with moving nozzle
CN111228933A (en) * 2020-02-26 2020-06-05 深圳市和科达超声设备有限公司 Laser cutting dust collector

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