SU740265A1

SU740265A1 - Low-pressure gas flusher

Info

Publication number: SU740265A1
Application number: SU772490045A
Authority: SU
Inventors: Эдуард Игнатьевич Левданский; Николай Николаевич Жук; Анатолий Иванович Карпович
Original assignee: Гродненское производственное объединение "Азот" им.С.О.Притыцкого
Priority date: 1977-06-01
Filing date: 1977-06-01
Publication date: 1980-06-15

Description

' Изобретение относится к технике очистки пазов и может быть использовано в любой отрасли народного хозяйства, где требуется комплексная очистка низкоиапорных вентиляционных выбросов от вредных газовых примесей и твердых веществ. ⁵ '' The invention relates to techniques for cleaning grooves and can be used in any sector of the economy where complex cleaning of low-pressure ventilation emissions from harmful gas impurities and solids is required. ⁵

Известно устройство для взаимодействия газа с жидкостью, включающее цилиндрический корпус, внутри которого расположена контактная камера с полыми криволинейными лопастями £lj . ¹⁰ A device is known for the interaction of gas with a liquid, including a cylindrical body, inside which there is a contact chamber with hollow curved blades £ lj. ¹⁰

Основным назначением лопастей является ..распределение жидкости по высоте газового потока, входящего в вихревую камеру. Криволинейные лопасТи ^соединенные ₍внутренней полостью с уровнем жидкости на тарелке, не предназначены да и не смогут обеспечить при подаче в них под давлением жидкости инжекцию газового потока. _го The main purpose of the blades is .. distribution of the liquid along the height of the gas stream entering the vortex chamber. Curved blades ^ compound _(internal cavity with the liquid level on the plate, not intended and not be able to provide when submitting them under the pressure of the fluid injection of the gas stream. _Th

Наиболее близким к описываемому изобретению по Технической сущности и достигаемому результату является промыватель низконапорных газов, включающий цилинд2 рический корпус, внутри которого установлено контактное устройство, содержащее основание в виде усеченного конуса, на котором жестко закреплена многолопаст^ная рёшетка с трубой для подвода жидкости по центру [2].The closest to the described invention in terms of Technical essence and the achieved result is a low-pressure gas washer including a cylindrical housing, inside which a contact device is installed, containing a base in the form of a truncated cone, on which a multi-blade grate with a pipe for supplying liquid in the center is rigidly fixed [ 2].

Наиболее существенным недостатком известной конструкции является значительное гидравлическое сопротивление, которое определяется затратами энегрии на диспергирование жидкости газом и преодоление местных сопротивлений. Это ограничивает область применения, в частности, для комплексной очистки низконапорных вентиляционных выбросов, так как имеющееся сопротивление уменьшает произво’дительность всего технологического агре-» гата.The most significant drawback of the known design is the significant hydraulic resistance, which is determined by the energy costs of dispersing the liquid with gas and overcoming local resistance. This limits the scope, in particular, for the comprehensive cleaning of low-pressure ventilation emissions, as the existing resistance reduces the productivity of the entire process unit.

Целью изобретения является снижение' гидравлического сопротивления промывателя за счет инжекции газа высокоскорост^ ным потоком жидкости. Указанная цель достигается тем, что в предложенном промывателе на нижнем конце трубы для под3 740265 вода жидкости выполнены продольные прорези, промыватель снабжен полыми криво.....„линейными лопастями., одним концом за-» крепленными'в продольных прорезях, а другим - расположенными между лопастями решетки.The aim of the invention is to reduce the hydraulic resistance of the washer due to gas injection by a high-speed fluid flow. This goal is achieved by the fact that in the proposed washer at the lower end of the pipe for under 3 740265 liquid water longitudinal slots are made, the washer is equipped with hollow curved ..... "linear blades., One end is fixed in longitudinal slots, and the other - located between the blades of the lattice.

При этом наружный диаметр полых лопастей составляет 0,7-0,8 наружного диаметра многолопастной решетки.Moreover, the outer diameter of the hollow blades is 0.7-0.8 of the outer diameter of the multi-blade grate.

Кроме того, с целью создания оптимально ных условий инжекции газа жидкостью, отношение минимального расстояния между лопастями решетки к ширине полой лопаоти составляет 3-4.In addition, in order to create optimal conditions for gas injection by a liquid, the ratio of the minimum distance between the grating blades to the width of the hollow blade is 3-4.

На фиг. 1 дан предложенный промыватель, продольный разрез; на фиг. 2 - разрез А—А на фиг. 1.In FIG. 1 shows the proposed washer, a longitudinal section; in FIG. 2 — section A — A in FIG. 1.

Промыватель для низконапорных газов состоит из цилиндрического корпуса 1, внутри которого установлен усеченный конус 2, сужающийся кверху, на котором жестко закреплена многолопастная решетка 3, отглушенная в верхней части. Подвод орошающей жидкости осуществляется во входной штуцер 4, а вывод через штуцер 5.2$ Труба 6 для подвода жидкости установлена по центру многолопастной решетки и отглушена в нижней части. В продольные сквозные прорези 7 подводящей трубы 6 жестко вмонтированы полые криволинейные лопасти 8, образующие инжекционный зазор 9 с лопастями 10 многолопастной решетки.The washer for low-pressure gases consists of a cylindrical body 1, inside of which there is a truncated cone 2, tapering upwards, on which a multi-blade grate 3 is rigidly fixed, muffled in the upper part. The irrigation fluid is supplied to the inlet nozzle 4, and the output through the nozzle 5.2 $ The pipe 6 for the fluid supply is installed in the center of the multi-blade grate and is muffled at the bottom. Hollow curved blades 8 are rigidly mounted in the longitudinal through slots 7 of the supply pipe 6, forming an injection gap 9 with the blades 10 of the multi-blade grating.

Промыватель работает следующим образом.The washer works as follows.

Орошающая жидкость под давлением подается во входной штуцер 4 и по трубе 6 через полые криволинейные лопасти 7 поступает в межлопастное пространство. На выходе из полых лопастей жидкость, имея высокую скорость, инжектирует за собой ’ через многолопастную решетку 3 газ, образуя вращающий газо-жидкостный поток. При контакте жидкости и газа происходит осаждение частиц пыли на капельках . жидкости (очистка от твердых веществ) или абсорбция газа (очистка от вредных газовых примесей) й совместное протекание процессов при комплексной очистке газа. Под действием центробежных сил жидкость отбрасывается на стенку цйлинд-50 рического корпуса 1, образуя турбулизированную пленку жидкости, которая служит второй зоной взаимодействия фаз.Irrigating fluid under pressure is supplied to the inlet fitting 4 and through the pipe 6 through hollow curved blades 7 enters the inter-blade space. At the exit from the hollow blades, the liquid, having a high speed, injects gas behind it ’through the multi-blade grating 3, forming a rotating gas-liquid flow. Upon contact of liquid and gas, dust particles are deposited on droplets. liquids (purification from solids) or gas absorption (purification from harmful gas impurities) and joint processes during complex gas purification. Under the action of centrifugal forces, the liquid is thrown onto the wall of the cylindrical 50 housing 1, forming a turbulent liquid film, which serves as the second zone of phase interaction.

За счет гравитационных сил пленка жид5 кости стекает вниз и выводится 'из' аппара- ; та через штуцер 5. Очишенный^газ _ вь»водитсяиз аппарата, В при необходимости подается на следующую студень промывателя. Таким образом,’в предлагаемой констмноголопастной решетки равно 0,7отношение минимального расстояния элементами многолопаточной рек ширине полых криволинейных ло4 оукции промывателя кинетическая энергия высокоскоростных струй жидкости используется для инжекции газового потока и образования Высокоразвитой и непрерывно обновляемой поверхности межфазного κοι>такта, что приводит к увеличению производительности и эффективности очистки низконапорных газов.Due to gravitational forces, the film of liquid flows down and is removed 'from' the apparatus; that through the nozzle 5. The purified gas _ gas в ”is taken from the apparatus, B, if necessary, is supplied to the next jelly of the washer. Thus, 'in the proposed constant-blade lattice, the ratio of the minimum distance by the elements of multi-blade rivers to the width of the hollow curvilinear washings of the washer is equal to 0.7, the kinetic energy of high-speed liquid jets is used to inject a gas stream and to form a highly developed and continuously updated interface surface κοι tact, which leads to an increase in productivity and cleaning efficiency of low pressure gases.

Исходя из экспериментальных данных, соотношение наружного диаметра полых криволинейных лопастей к наружному диаметру 0,8, а между шетки пастей равно 3-4. При таких оптимальных соотношениях достигается самая высокая степень очистки (до 99%) и наилучшая инжекция газа жидкостью с коэффициентом инжекции до 960.Based on experimental data, the ratio of the outer diameter of the hollow curved blades to the outer diameter of 0.8, and between the brush mouth is 3-4. With these optimal ratios, the highest degree of purification (up to 99%) and the best gas injection with liquid with an injection coefficient of up to 960 are achieved.

Claims

(54) LOW CAPTURE WASH V. -. I, the invention relates to a technique for cleaning gases and can be used in any branch of the national economy where complex cleaning of low-pressure ventilation outlets from feed gas gases and solids is required. A device for interaction of a gas with a liquid is known, comprising a cylindrical housing, inside which there is a hollow curvolv-1 contact box; Neutral blades 1 The main purpose of the blades is the c-distribution of the height of the gas entering the vortex chamber. The curvilinear lobes, and the internal cavity connected to the level of the liquid on the plate, are not intended and will not be able to provide an injection of a gas current when the liquid pressure is injected into them. The closest to the described invention by its technical essence and the achieved result is a washer gas condenser, including a (n) n): GAS-housing, inside which a contact device is installed, containing a base in the form of a truncated cone, on which a multi-grate with pipe supplying bone to the center 2. The most significant disadvantage of the known construction is the considerable hydraulic resistance, which is determined by the energy required for dispersion vanie gas liquids and to overcome local resistance. This is limited to the area of infusion, in particular, for complex cleaning of low-pressure ventilation emissions, since the available resistance reduces the productivity of the entire instrumental aggregate. The purpose of the invention is to reduce the hydraulic resistance of the washer by injecting gas W, 1 with a high speed liquid. This goal is achieved by the fact that in the proposed washer, at the lower end of the pipe for sub-water-liquid, longitudinal slots are made, the washer is equipped with hollow curved linear blades, one end behind-k fastened in the longitudinal slots, and the other between the blades of the grate. In this case, the outer diameter of the hollow blades is 0.7-0.8 of the outer diameter of the multi-blade grid. In addition, in order to create optimal conditions for the injection of gas with a flush, the ratio of the minimum distance between the lottery sieves to the width of a hollow blade is 3-4. FIG. 1 given the proposed washer, longitudinal section; in FIG. 2, a cut A-A in FIG. 1. The washer for low-pressure gazb consists of a cylindrical body 1, inside which a truncated cone 2 is installed, tapering upwards, on which a multi-blade grill 3 is fixed, damped at the top. The irrigating fluid is fed into the inlet nozzle 4, and the outlet through the nozzle 5 is provided. The pipe 6 for the fluid inlet is installed at the center of the multi-blade grille and is muffled at the bottom. Hollow curved blades 8 are rigidly embedded into the through-through prsrezi 7 of the inlet pipe 6, which form the injection gap 9 with the blades 10 of the multi-blade paddle. The washer works as follows. The irrigating fluid under pressure is fed into the inlet fitting 4 and through pipe 6 through hollow curvilinear blades 7 enters the inter-blade space. At the exit of the hollow blades, the liquid, having a high flow rate, injects behind itself, through the multi-blade grid 3, a gas forming a gas-liquid flow. At the stage of liquid and gas deposition of dust particles on droplets occurs. liquids (purification from solids) or gas (clearing gas from harmful gas impurities) and co-flow processes during | complex gas cleaning. Under the action of centrifugal forces, the liquid is thrown onto the wall of the cylindrical body 1, forming a turbulized film of liquid, which serves as the second zone of interaction between the phases. Due to the gravitational forces of the fluid, the fluid flows downward and is brought out of the apparatus through nozzle 5. Very high, out of the apparatus, & when neo & bridges are fed to the next stage of the washer. Thus, in the proposed Kak 5 offer, the kinetic energy of high-speed liquid jets is used to inject the gas stream and form a rapidly expanding and continuously renewed interfacial surface, which leads to an increase in the productivity and efficiency of cleaning low-pressure gases. . The output from the experimental data is that the ratio of the outer diameter of the polys of curvilinear blades to the outer diameter of the multi-blade grid is 0.70, 8 and the ratio of the minimum distance between elements of the multi-blade grid to the width of hollow curvilinear blades is 3-4. With such optimal ratios, the highest degree of purification is achieved (up to 9%) and the best injection of gas with a liquid with an injection ratio of up to 96O. Claim 1. A low-pressure gas washer, comprising a cylindrical body, inside which a contact device is installed, comprising a frustoconical base on which a multi-blade rigidly fixed grid with a pipe for supplying liquid in the center, characterized in that, in order to reduce the hydraulic resistance due to the injection of high-velocity jets of gas gas, on the lower pipe for the supply of liquid, longitudinal slits, sleep washes & hollow curvilinear l on the tails, at one end fixed in the longitudinal planes, and on the other - located between the grate blades. 2. The washer according to claim 1, wherein the outer diameter of the hollow blades is 0.7-0.8 of the outer diameter of the multi-blade grid. 3. The washer according to claim 1, in connection with the fact that, in order to create optimal conditions for the injection of gas, the bone & bone, the ratio of the minimum distance between the blades of the lattice to the width of the blade is 3- four. Sources of information taken into account during the examination 1. Application No. 2385427 / 23-26, dated 12.О7.76, cl. B O1 T) D / ZO, according to which a decision was made to issue an IHO certificate,

2. Yes Vk № 2366915 / 23-26, from 01.06.76, cl. B 01 B 3/30, according to which the decision to issue the author's witness was made.