CN2834656Y

CN2834656Y - Evaporation condensation device capable of cleaning dirty automatically

Info

Publication number: CN2834656Y
Application number: CN 200520098920
Authority: CN
Inventors: 王勇; 刘萍
Original assignee: GUANGXI HUIYU TECHNOLOGY Co Ltd
Current assignee: GUANGXI HUIYU TECHNOLOGY Co Ltd
Priority date: 2005-11-22
Filing date: 2005-11-22
Publication date: 2006-11-08
Anticipated expiration: 2015-11-22

Abstract

The utility model relates to an evaporation condensation device capable of cleaning dirt automatically, wherein the upper part of an evaporator is connected with a separation chamber and the lower part is connected with an inert particle fluidizing device. An outer circulation pipe is arranged between the separation chamber and the inert particle fluidizing device, and the outer circulation pipe is provided with an inert particle filter. The lower part of the inert particle fluidizing device is connected with a solution pump communicated with the inert particle filter. The inert particle fluidizing device is provided with a lower partition plate, a steam lifter, a liquid averaging cap, a distributing plate and an outlet connecting pipe from top to bottom, wherein inert particles are arranged between the distributing plate and the steam lifter. The utility model has the advantages that the inert particles continuously impact each other and impact the inner wall of a heating pipe when concentrated solutions are evaporated. Thus, the dirt accumulation can be effectively prevented, the heat transfer is enhanced and the production capacity of the evaporator can be enhanced. Furthermore, the solution pump needs small power and the energy consumption of the solution pump is low. The inert particles have wide sources. The whole device has the advantage of simple and compact structure.

Description

From the snaking evaporation concentration device

Technical field

The utility model relates to multiple industrial from the snaking evaporation concentration device.

Background technology

At present, for weak solution is concentrated, weak solution need be placed evaporation concentrator to carry out indirect and handle.But used evaporation concentrator ubiquity the problem that the heating surface fouling is not only fast but also thick, need cyclic stop to clean now.Chinese patent " explosive evaporation device and method of operating with augmentation of heat transfer, good antiscale property performance " (patent No. 96120008.1) provides a kind of and be added with a certain amount of method of operating with metal or nonmetallic inert particle body of given shape and size in air-liquid-solid (solute) the three-phase stream in evaporimeter.But there is not inert particle fluidisation device in this vaporising device, the particle maldistribution also can cause part heating tube incrustation, forms the particle flux with certain movement flow pattern in order to make inert particle, must rely on forced circulation pump the certain flow rate circulation solution is provided, energy consumption is bigger.Occupation area of equipment is bigger simultaneously, the pipeline complexity.In the Chinese patent " the low flow velocity reinforced automatic cleaning type evaporimeter of contrary naturally circulation " (patent No. 03248001.6), a kind of technical scheme that plastic spiral is housed in steam booster device, the pipe that is equipped with in the boiling-house of the big degree of depth in heavy in section has been proposed, can under low flow velocity, clean automatically, low to the flow velocity and the power requirement of Natural Circulation; But this evaporimeter needs large-area heating clamber, boiling-house and vaporization chamber, and steel consumption is big, the helical structure complexity in the pipe, and difficulty of processing is big; In addition, plastic spiral hardness is low, to CaSO ₄, CaCO ₃Removing etc. high rigidity dirt layer is very difficult, and plastic spiral wearing and tearing back snaking ability descends greatly.

Summary of the invention

The technical problems to be solved in the utility model provide a kind of can on-line continuous snaking handle and simple in structure, steel consumption and energy consumption are low from the snaking evaporation concentration device.

The utility model solves the problems of the technologies described above with following technical scheme: vaporization chamber 7 tops meet separation chamber 3, and the below connects inert particle fluidisation device 15, between separation chamber and inert particle fluidisation device outer circulating tube 8 are arranged, and inert particle filter 10 is arranged on the outer circulating tube; Below inert particle fluidisation device, be connected with the solution pump 13 that communicates with the inert particle filter, lower baffle plate 22, steam lift 20, liquid uniforming cap 17, distribution plate 16 and outlet connecting pipe 12 are installed in the inert particle fluidisation device from top to bottom, inert particle 18 is housed between distribution plate and steam lift.

Steam lift is the ring pipe that many penetrating apertures are arranged on the tube wall.

Lower baffle plate 22 shape approximations are in gyroscope-like, and upper and lower side is the pinnacle.

With of the present utility model when the snaking evaporation concentration device evaporation and concentration solution, inert particle constantly from collide and with the collision of heating tube inwall, destroyed the wall boundary layer airflow, huge to tube wall dirt layer shearing force, effectively stop incrustation, strengthened heat transfer, improved the production capacity of evaporimeter.In addition, because steam lift ejection steam forms many, the low density steam bubble-material liquid mixtures of bubble, and there are not to produce between the outer loop pipe of steam bubble bigger density contrast and differential static pressure, strengthened the motive force of evaporation feed liquid circulation,, reduced system energy consumption so the solution pump power demand is little.The inert particle source is wide, is easy to produce, and complete machine structure is simple, compact.

Description of drawings

Fig. 1 is the structural representation of the utility model from the snaking evaporation concentration device.

The specific embodiment

Heating fumigators 5 hypomeres are vaporization chamber 7, epimere is separation chamber 3, in vaporization chamber 7, the heating tube 23 that passes upper perforated plate 25 and lower perforated plate 9 is located at around the central tube 24 that passes vaporization chamber, the following termination lower baffle plate 22 of central tube 24, upper perforated plate 25 and lower perforated plate 9 connect separation chamber 3 and inert particle fluidisation device 15 respectively; Overhead gage 4, steam-water separator 2 and juice vapour outlet 1 are arranged in the separation chamber; Between separation chamber and inert particle fluidisation device, outer circulating tube 8 is arranged, inert particle filter 10 is arranged on the outer circulating tube; Lower baffle plate 22, steam lift 20, liquid uniforming cap 17, distribution plate 16 and outlet connecting pipe 12 are installed in the inert particle fluidisation device from top to bottom, and lower baffle plate 22 shape approximations are in gyroscope-like, and upper and lower side is the pinnacle; Steam lift 20 is ring pipes that many penetrating apertures are arranged on the tube wall, links to each other with the jet chimney of outside.Inert particle 18 is housed between distribution plate and steam lift.Below inert particle fluidisation device, be connected with the solution pump 13 that communicates with inert particle filter 10.

When start vaporizer concentrates, weak solution flows into inert particle fluidisation device 15 from feed pipe 19, be mixed together with the inert particle 18 of boiling, the steam dilution that is sprayed by steam lift 20 simultaneously, after reducing, density is sucked into heating tube 23, inert particle 18 rolls in heating tube 23 and washes away, bump heating tube wall, weak solution is entered the Steam Heating evaporation of vaporization chamber 7 from steam inlet 6, volumetric expansion, flow velocity is accelerated, solution and inert particle 18 are upwards sprayed from heating tube 23 together, liquid level falls back after being stopped by overhead gage 4, the top steam-water separator 2 that rises to separation chamber 3 behind the steam baffling again from the next door of overhead gage 4 carries out carbonated drink to be separated the back and discharges from juice vapour outlet 1, part inert particle 18 and solution fall from central tube 24 and are circulated back in the inert particle fluidisation device 15, stopped by lower baffle plate 22 and to rise to heating tube 23 recirculation behind the baffling again, another part refluxes downwards from outer circulating tube 8, through inert particle filter 10 time, inert particle directly flows back to inert particle fluidisation device 15, after filtrate is pressurizeed by solution pump 13 through inlet connecting branch 11, small part is discharged from discharging opening 14, major part is compressed into inert particle fluidisation device 15 through outlet connecting pipe 12, filtrate holds up inert particle 18 equably behind distribution plate 16 and liquid uniforming cap 17, the inert particle 18 of fluidized state is with after the feed liquid of being come in by outer circulating tube 8 is mixed, enter heating tube 23 once more, thereby realize that inert particle 18 and feed liquid constantly circulate in heating tube 23 and outer circulating tube 8, be heated in feed liquid, evaporation, when concentrating, inert particle constantly clashes into the tube wall that cleans heating tube 23, reaches antiscale, scale removal and augmentation of heat transfer, the purpose of enhancing productivity.The condensate pipe 21 of vaporization chamber 7 bottoms is discharged for condensed water.

Distribution plate 16 and liquid uniforming cap 17 balance the boiling inert particle in the fluidisation device, guarantee that the inert particle quantity that is assigned in each heating tube is even, make every heating tube obtain farthest anti-scale removal effect.

Claims

1. one kind from the snaking evaporation concentration device, tubular evaparator is arranged, inert particle, it is characterized in that the evaporimeter top meets the separation chamber, the below connects inert particle fluidisation device, between separation chamber and inert particle fluidisation device outer circulating tube is arranged, and the inert particle filter is arranged on the outer circulating tube; Below inert particle fluidisation device, be connected with the solution pump that communicates with the inert particle filter, in the inert particle fluidisation device lower baffle plate, steam lift, liquid uniforming cap, distribution plate and outlet connecting pipe are installed from top to bottom, between distribution plate and steam lift, inert particle are housed.

2. as claimed in claim 1 from the snaking evaporation concentration device, it is characterized in that the lower baffle plate shape approximation in gyroscope-like, upper and lower side is the pinnacle.

3. as claimed in claim 1 or 2 from the snaking evaporation concentration device, it is characterized in that steam lift is the ring pipe that many penetrating apertures are arranged on the tube wall.