CN101613132A

CN101613132A - Flash-boiling evaporators

Info

Publication number: CN101613132A
Application number: CN200810122720A
Authority: CN
Inventors: 刘正生
Original assignee: ZHENJIANG ZHENGHONG TEXTILE MACHINERY CO Ltd
Current assignee: ZHENJIANG ZHENGHONG TEXTILE MACHINERY CO Ltd
Priority date: 2008-06-26
Filing date: 2008-06-26
Publication date: 2009-12-30

Abstract

The present invention relates to a kind of being used for from the equipment of solution sharing water, specifically is the flash-boiling evaporators that uses in the technologies such as comprehensive treating process of dense place, waste water of a kind of manufacturing at fresh water, solution.It includes the multistage evaporation condensing unit, and the unitary bottom of evaporative condenser is an evaporator room, and the unitary top of evaporative condenser is condensing chamber, and the condensing chamber bottom is a condensate draining; In the unitary outer setting of evaporative condenser solution feed pump is arranged, the drain pipe of solution feed pump passes in the unitary evaporator room of first step evaporative condenser; The unitary evaporator room of first step evaporative condenser is provided with the taphole that leads to first recycle pump, the drain pipe of first recycle pump enters a heating unit after passing the unitary condensing chamber of part or all of evaporative condenser, and the drain pipe of heating unit feeds the unitary evaporator room of last step evaporative condenser; First step evaporative condenser is unitary to communicate with outside negative pressure environment.The present invention is rational in infrastructure, energy utilization rate is high, evaporation and concentrated effect are good.

Description

Flash-boiling evaporators

Technical field

The present invention relates to a kind of being used for from the equipment of solution sharing water, specifically is the flash-boiling evaporators that uses in the technologies such as comprehensive treating process of dense place, waste water of a kind of manufacturing at fresh water, solution.

Background technology

In the equipment such as comprehensive treating process of the dense place of the manufacturing of some fresh water, solution, waste water, often need solution heating evaporation with lower concentration, in order to the water sepn in the solution is come out, and then obtain the solution or the purified water of high density.For example the alkali lye of employed high density becomes the waste lye of lower concentration after being used to complete in dyeing process, for waste lye all is that the mode that adopts dealkalize to purify the back discharging is handled traditionally, such processing mode not only causes the waste at raw material, and still can cause the pollution of environment.

Summary of the invention

Technical problem to be solved by this invention is, provide a kind of rational in infrastructure, energy utilization rate is high, evaporation and the good flash-boiling evaporators of concentrated effect.

Flash-boiling evaporators of the present invention includes the multistage evaporation condensing unit, and the unitary bottom of evaporative condenser is an evaporator room, is connected in series successively by throttling valve between the unitary evaporator room of evaporative condensers at different levels; The unitary top of evaporative condenser is condensing chamber, the condensation-water drain that the condensate draining of condensing chamber bottom connects step by step and finally leads to the outside in the setting of place, first step evaporative condenser unit; In the unitary outer setting of evaporative condenser the solution feed pump that is used for extracting pending dilute solution is arranged, the drain pipe of solution feed pump passes in the unitary evaporator room of first step evaporative condenser; The unitary evaporator room of first step evaporative condenser is provided with the taphole that leads to first recycle pump, the drain pipe of first recycle pump enters a heating unit after passing the unitary condensing chamber of part or all of evaporative condenser, and the drain pipe of heating unit feeds the unitary evaporator room of last step evaporative condenser; First step evaporative condenser is unitary to communicate with outside negative pressure environment.

Described heating unit is a steam heater.

First step evaporative condenser unit communicates with outside negative pressure environment by condensation-water drain, and described outside negative pressure environment is a water of condensation collecting chamber, and the rising pipe of water of condensation collecting chamber bottom leads to a condensation water tank through the water of condensation collecting pump; The upper opening of water of condensation collecting chamber communicates with a water of condensation spray tube, the jet orifice of water of condensation spray tube lower end is aimed at the condensation water tank of below, the water of condensation rising pipe of condensation water tank leads to the inlet of water of condensation spray tube upper end through a water of condensation recycle pump, the injection that circulates by water of condensation forms negative pressure in the water of condensation collecting chamber.

The present invention by hot solution in evaporation cavity step by step decompression and expansion realize the evaporation of moisture content, make the steam that rises to the condensing chamber from evaporator room carry out heat exchange with the pipeline of carrying cold soln, utilize steam waste heat that the solution that does not enter heating unit is carried out preheating on the one hand, utilize cold soln to make the steaming condensation on the other hand as cooling medium, thereby improved the utilising efficiency of heat energy greatly, guaranteed evaporation and concentrated effect.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Embodiment

The each several part mark is as follows in the accompanying drawing: evaporative condenser unit 01, evaporator room 011, condensing chamber 012, condensate draining 013, condensation-water drain 014, throttling valve 015, solution feed pump 02, first recycle pump 03, the drain pipe 031 of first recycle pump, heating unit 04, water of condensation collecting chamber 05, water of condensation collecting pump 06, condensation water tank 07, water of condensation spray tube 08, jet orifice 081, water of condensation recycle pump 09.

As shown in the figure, this flash-boiling evaporators includes multistage evaporation condensing unit 01, and the unitary bottom of evaporative condenser is an evaporator room 011, is connected in series successively by throttling valve between the unitary evaporator room 011 of evaporative condensers at different levels; The unitary top of evaporative condenser is condensing chamber 012, and condensate draining 013 is arranged at the condensing chamber bottom; The heating unit 04 that is used for extracting the solution feed pump 02 of pending dilute solution and is used for heated solution is arranged in the unitary outer setting of evaporative condenser; First step evaporative condenser unit communicates with subnormal ambient.

In the working process, solution feed pump is delivered to dilute solution in the unitary evaporator room 011 of first step evaporative condenser.The dilute solution of being sent by first step evaporator room enters first recycle pump 03, the drain pipe 031 of first recycle pump enters its condensing chamber from third stage evaporative condenser unit, and enter heating unit 04 (steam heater) after passing third stage condensing chamber condensing chambers at different levels afterwards successively, enter its evaporator room through the solution after the heating unit heating from last step evaporative condenser unit, in the evaporator rooms at different levels before entering step by step by the throttling valve between each evaporator room again, in this process, because evaporator room 011 pressure reduces step by step, so solution has a decompression and expansion evaporating course step by step.The steam that evaporator room 011 evaporation produces rises and enters the condensing chamber 012 on top, and steam carries out heat exchange with the pipeline of carrying cold soln and is condensed in condensing chamber, and water of condensation compiles in condensate draining 013 and sent by condensation-water drain 014.

First step evaporative condenser unit communicates with outside negative pressure environment by condensation-water drain 014, and this subnormal ambient is a water of condensation collecting chamber 05, collects in water of condensation collecting chamber bottom condensate water and pumps into condensation water tank 07 by water of condensation collecting pump 06; The upper opening of water of condensation collecting chamber communicates with a water of condensation spray tube 08, the jet orifice 081 of water of condensation spray tube lower end is aimed at the condensation water tank 07 of below, water of condensation in the condensation water tank is by the inlet of water of condensation recycle pump 09 pump to water of condensation spray tube upper end, realize circulating and spraying of water of condensation, by the injection that circulates of water of condensation, with water of condensation collecting chamber 05 that the water of condensation spray tube communicates in form negative pressure.

Claims

1, a kind of flash-boiling evaporators is characterized in that: it includes multistage evaporation condensing unit (01), and the unitary bottom of evaporative condenser is evaporator room (011), is connected in series successively by throttling valve between the unitary evaporator room of evaporative condensers at different levels; The unitary top of evaporative condenser is condensing chamber (012), the condensation-water drain (014) that the condensate draining (013) of condensing chamber bottom connects step by step and finally leads to the outside in the setting of place, first step evaporative condenser unit; In the unitary outer setting of evaporative condenser the solution feed pump (02) that is used for extracting pending dilute solution is arranged, the drain pipe of solution feed pump passes in the unitary evaporator room of first step evaporative condenser (011); The unitary evaporator room of first step evaporative condenser is provided with the taphole that leads to first recycle pump (03), the drain pipe of first recycle pump (031) enters a heating unit (04) after passing the unitary condensing chamber of part or all of evaporative condenser (012), and the drain pipe of heating unit feeds the unitary evaporator room of last step evaporative condenser (011); First step evaporative condenser is unitary to communicate with outside negative pressure environment.

2, flash-boiling evaporators according to claim 1 is characterized in that: described heating unit (04) is a steam heater.

3, flash-boiling evaporators according to claim 1 and 2, it is characterized in that: first step evaporative condenser unit communicates with outside negative pressure environment by condensation-water drain (014), described outside negative pressure environment is a water of condensation collecting chamber (05), and the rising pipe of water of condensation collecting chamber bottom leads to a condensation water tank (07) through water of condensation collecting pump (06); The upper opening of water of condensation collecting chamber communicates with a water of condensation spray tube (08), the jet orifice (081) of water of condensation spray tube lower end is aimed at the condensation water tank of below, and the water of condensation rising pipe of condensation water tank leads to the inlet of water of condensation spray tube (08) upper end through a water of condensation recycle pump (09).