CN1045174A

CN1045174A - Jet-type mixing condenser

Info

Publication number: CN1045174A
Application number: CN 90105787
Authority: CN
Inventors: 魏仕英
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-03-22
Filing date: 1990-03-22
Publication date: 1990-09-05

Abstract

The present invention is a kind of novel mixing condenser, and it is that the multi-level water spray face is set in housing, and every layer of multilayer induced jet type swirling-flow atomizing nozzle of adorning one or more annular tilt axis focus arrangement.And be provided with loose flow cone plate and water proof ring.This device has the effect of bleeding strongly, excellent condensation effect, flow resistance is little, the discharge orifice is difficult for stopping up, simple in structure, easy to maintenance, working stability etc., can replace existing trickle orifice-plate type structure.Experiment shows that vacuum improves nearly 30 millibars in producing 130000 tons of vacuum salt production systems per year, and output increases by tens percent, can be widely used in the evaporation of light industry departments such as salt manufacturing, sugaring, saltcake, caustic soda, in the heat and mass system.

Description

Jet-type mixing condenser

This jet-type mixing condenser is a kind of novel mixing condenser.Belong to common apparatus.ICL is F28B.It can be widely used in light industries such as salt manufacturing, sugaring, caustic soda, saltcake and the energy, oil, and the evaporation of departments such as environmental protection is in the heat and mass system.

The effect of mixing condenser is the indirect steam condensation with last evaporator, and causes vacuum.The height of vacuum is to the production intensity of system, and energy resource consumption has intense influence.Mixing condenser commonly used has material filling type, trickle orifice-plate type, injecting type etc.Material filling type is to install filler to realize good mass transfer effect between gas-liquid two-phase in condenser shell.But big because of flow resistance, cost is high, maintenance capacity is big, so adopt in vacuum condensation.The condensation effect of ejector condenser is not as the trickle orifice-plate type, and except that steaming the spray condenser, other seldom adopts at present.The water-jetting type condenser adopts at industrial departments such as salt manufacturing, sugarings, but changes greatly because of performance is influenced by water temperature, and it is not high that the vacuum that causes becomes, so replaced by trickle orifice-plate type condenser gradually in four-effect evaporator system.Trickle orifice-plate type condenser is that installing multilayer sieve plate becomes water a shape and increases water droplet time of staying in vapour phase in housing.The sieve plate aperture is generally 5～8 millimeters.Yet, owing to its effect of following reason is unsatisfactory: 1. at present in the Chemical Manufacture water consumption of mixing condenser often up to per hour hundreds of tons even thousands of tons of.Calculating shows, if will be with 1 meter of flow ³The water in/time becomes the water droplet of 6 millimeters of diameters by sieve plate, need bore 35000 holes on sieve plate.Will be with 100 meters ³The water in/time becomes 6 millimeters water droplet, nearly 3500000 of sieve plate boring sums, and obviously this is difficult to accomplish.Cause and to drop with waterfall shape through most of cooling water that to carry out heat exchange be small part to drip shape form and steam.2. in the use, the sieve plate hole is very easily stopped up, and often needs the labor cleaning, and influence is produced., cause under the normal condition, flow resistance is 13～26 millibars for this reason, and high reaches more than 40 millibars, has influenced the raising of system vacuum degree, has limited four-effect evaporator system and has strided forward to the Increasing Production and Energy Saving higher level.

The purpose of this utility model had both overcome the deficiency of above-mentioned mixing condenser, provided that a kind of condensation effect is good, flow resistance is little, the novel mixing condenser of Increasing Production and Energy Saving obvious results.

This novel mixing condenser is that following mode constitutes:

The water spray face that (contains one deck) more than one deck is set in the housing of condenser, and every layer of water spray face constitutes by installing the multiple induced jet type swirling-flow atomizing nozzle (5) that (contains) more than.(hereinafter to be referred as shower nozzle (5).) this shower nozzle (5) is provided with multistage shower nozzle and Taper Pipe to produce self-priming inside and outside mixing of multiple injection, simultaneously, be provided with spin chamber, center exhaust tube, many spray orifices loose flow cone, to obtain more satisfactory spray effect.Now submitted patent application, application number 89104110.9 and 89213235.3.The applying date 891012.

If when a plurality of shower nozzles (5) are set, then establish an annular water chamber for every layer at the inwall or the outer wall of housing, shower nozzle (5) is communicated with annular water chamber by flange, water pipe, and annular water chamber is responsible for water inlet by the water inlet arm and is connected.The retaining ring that is fixed in housing is set between the adjacent two layers water spray face, flows down along the condenser shell inwall to avoid current.The retaining ring top is provided with the diffusing flow cone plate of taper of a porous, and is fixed on retaining ring or the housing.The flow cone plate that looses not only can stop water to be flowed directly to bottom but also can dispersant liquid drop.A plurality of shower nozzles are circular layout, tilt to install, and every layer of each shower nozzle axis is gathered on loose flow cone plate center or the condenser central axis.Basecoat can adopt spray or spray remainder layer employing spray down down.To low discharge spray mixing condenser then every layer a shower nozzle (5) is set, and the housing in basecoat shower nozzle water spray face outside adopts Taper Pipe and the straight tube structure that links to each other, constitute an eddy flow water sprayer, two interlayers are only established retaining ring, and shower nozzle (5) only directly links to each other with water inlet pipe with flange.Outlet pipe links to each other with the housing bottom.Air inlet pipe is connected with housing wall lower end and top respectively with exhaust outlet.And at the upper and lower hand-hole of offering respectively of housing wall.

Further specify below in conjunction with accompanying drawing

One of Fig. 1, this condenser embodiment

There are diffusing flow cone plate in many shower nozzles multilayer layout, annular water chamber outside housing

Two of Fig. 2, this condenser embodiment

Many shower nozzles multilayer arranges that there is diffusing flow cone plate in annular water chamber in housing

Three of Fig. 3, this condenser embodiment

The flow cone plate of loosing is arranged, do not had to single shower nozzle multilayer

See Fig. 1, Fig. 2, item (1) annular water chamber, (2) housing, item (3) retaining ring, item (4) hand-hole, item (5) shower nozzle, item (6) gas outlet, item (7) water inlet arm, the diffusing flow cone plate of item (8).Item (9) water inlet manifold, item (10) outlet pipe, item (11) air inlet pipe, item (12) shower nozzle flange, the low pressure cooling water path water inlet arm (8) that is entered by water inlet manifold (9) enters each layer annular water chamber (1), and the indirect steam of vapo(u)rization system is entered in the housing (2) by air inlet pipe (11).Water inlet forms vaporific placement jet by multiple induced jet type swirling-flow atomizing nozzle (5) injection indirect steam or on-condensible gas.Ground floor rotating jet group arranges that making it to form a taper impacting jet bores because shower nozzle annular tilt axis is assembled, its mass transfer area is big, can stop the indirect steam of shower nozzle injection to pass through once more,, most of indirect steam is condensed so strengthened mass transfer effect.The indirect steam that is not condensed continues to rise, cooled off by the water smoke adverse current of second layer jet head sets again, in like manner, owing to form the impacting jet awl, still need pass two layers of jet awl with this part steam and arrive the gas outlet, make it to reach abundant condensation, fixed gas is discharged by gas outlet (6), by the retaining ring (3) and the diffusing flow cone plate (8) that are provided with, stoped second layer current to flow down and the direct projection bottom, and diffusing flow cone has played the dispersant liquid drop effect along wall.Just generally, comparing with the drip water plate cellular type in the housing almost is the void tower state, retaining ring and diffusing flow cone plate is only arranged, and enough big circulating face is arranged again between the two, so minimum to the flow resistance of fixed gas.

See Fig. 3, low discharge is sprayed mixing condenser, establish a shower nozzle (5) for every layer.Shower nozzle (5) constitutes an eddy flow water sprayer with Taper Pipe (13) and straight tube (14), has condensation concurrently and the double action of bleeding.Establish retaining ring (3) in the housing (2), but do not establish the flow cone plate that looses, shower nozzle (5) footpath flange (15) directly is responsible for (9) with water inlet and is linked to each other.

The techno-economic effect of this jet-type mixing condenser is as follows:

1, this device is to adopt the low pressure and mass flow multiple induced jet type swirling-flow atomizing nozzle to be contained in the mixing condenser, cancels existing trickle orifice-plate type structure. It not only has consumingly air-extraction function, excellent condensation effect, and minimum flow resistance, and strengthen stable equipment operation, and sometimes can reduce cooling water inflow, cause the huge multi-effect evaporation system energy consumption of power consumption greatly to descend. As: certain saltworks's output is that 130,000 ton/years quadruple effect vacuum salt production system substitutes trickle orifice-plate type condenser by this device. Should Installing former output is 1600m³/ h, hydraulic pressure 0.06MPa. System vacuum degree 0.092MPa, condenser flow resistance 40mba, under the same conditions, after the transformation, spraying the mixing condenser flow resistance is 6.6mba, reduces 33.4mba, the system vacuum degree is brought up to 0.095MPa, improves nearly 30mba. Through looking into survey, system throughput increases by 13%, is equivalent to 1.7 ton/years, after again the ejector condenser pressure of supply water is down to 0.02MPa, be about to the water yield and reduce to about 1350m³/ h, systematic parameter is unchanged.

2, the low discharge that provides of this device sprays mixing condenser and can play condensation and the double action of bleeding, and replaces existing steam jet pump. Make that the steam jet pump operating back pressure descends, rate of air sucked in required is big, working steam pressure and reducing noise have obvious energy-saving effect and the scope that extends one's service.

Claims

1, a kind of jet-type mixing condenser, have housing [2], water inlet manifold [9], water inlet arm [7], outlet pipe [10], air inlet pipe [11], gas outlet [6], manhole [4], it is characterized in that being provided with in the condenser shell [2] one deck water spray face of above (containing one deck), every layer of water spray face constitutes by installing the multiple induced jet type swirling-flow atomizing nozzle [5] that (contains) more than.(hereinafter to be referred as shower nozzle [5]).

2, by the described condenser of claim 1, it is characterized in that one annular water chamber (1) being set at housing (2) inwall or every layer of water spray face of outer wall, be communicated with by water pipe and flange (12) between shower nozzle (5) and the annular water chamber (1), the retaining ring (3) that is fixed in the housing is set between the adjacent two layers water spray face; In retaining ring (3) top the diffusing flow cone plate (8) of one porous taper is set, and is fixed on retaining ring (3) or the housing (2).

3, by claim 1,2 described condensers, it is characterized in that being provided with a plurality of shower nozzles that are circular layout (5), and shower nozzle (5) tilts to install, every layer of each nozzle axis line focus certain some basecoat shower nozzle (5) on diffusing flow cone plate (8) center or condenser central axis can adopt spray or spray down, and remainder layer adopts spray down.

4, by the described condenser of claim 1, it is characterized in that being provided with a shower nozzle (5), basecoat water spray face enclosure location adopts Taper Pipe (13) and the straight tube that links to each other (14), establish retaining ring (3) between the adjacent two layers water spray face, and shower nozzle (5) is connected directly with water inlet manifold (8) through flange (15).

5,, it is characterized in that multiple induced jet type family stream atomizer (5) is the new type nozzle that has adopted multistage shower nozzle and Taper Pipe and be provided with spin chamber, center exhaust tube, the diffusing flow cone of many spray orifices simultaneously by the described condenser of claim 1.