CN2145184Y

CN2145184Y - Multi-efficient spurting desalination apparatus of seawater

Info

Publication number: CN2145184Y
Application number: CN92237784U
Authority: CN
Inventors: 徐惜民
Original assignee: CHANGZHOU ENERGY SOURCE EQUIPM
Current assignee: CHANGZHOU ENERGY SOURCE EQUIPM
Priority date: 1992-11-26
Filing date: 1992-11-26
Publication date: 1993-11-03
Anticipated expiration: 2002-11-26

Abstract

The utility model relates to a multi-efficiency spray type seawater desalting device which is used for freshwater preparation on fishing ships, supply ships, passenger and cargo ships, and coastal areas lack of freshwater resources, and solution concentration in the chemical industry, the medical preparation, and the drink industry and comprises a main body I, a main body II, a preheater, a condenser, a spray pump, and a pipe-line system. By adopting the techniques of transverse arrangement of a heating pipe and heat exchange of an enhanced pipe, the previously generated efficient steam of the main body I is used as the following efficient heat source of the main body II; namely the indirect steam is reused, so that the energy source is fully used, the consumption of the heat source is reduced, and the freshwater generating capacity is increased under the condition of the same heat source.

Description

Multi-efficient spurting desalination apparatus of seawater

The utility model relates to a kind of multiple-effect spray-type sea water desalinating plant, is used for the solution concentration that fresh water and chemical industry, pharmacy, beverage industry are produced in coastland that fishing boat, storeship, vessel, Freshwater resources lack and island.

Bottom water inlet spill-over is all adopted in the feedwater of known sea water desalinating plant or title water producing machine, and generating tube adopts to erect puts tube bank, is evaporated to and rises membrane type.Rising film-type evaporation is by the secondary steam that high-speed screw rises former water to be pasted the inside pipe wall towing to become film to be evaporated again, but in a single day it is very few to feed water, and then the top tube wall dried wall phenomenon occurs because of former water deficiency is difficult to wetting tube wall; Give water excess then can the film forming pipeline section of shape seldom, influence the evaporation of water amount, even water is full of in the whole pipe and can not produces water, the therefore difficult confluent of controlling.In the existing sea water desalinating plant, prolong and heating tube all adopt light pipe---and inside and outside ganoid pipe, heat transfer efficiency is lower.

In order to address the above problem, the Chinese utility model patent CN2101666U that Changzhou Energy Equipment Factory provides discloses a kind of " the light device of spray-type seawaterization ", the spray collection filter assembly that it is characterized in that adopting horizontal condenser and well heater, collection spray, water storage and be filtered into one and prolong and the heating tube strengthened, obtained that materials consumption is few, power consumption less, plant investment is few, volume is little and lightweight effect.

The purpose of this utility model is for the further development of above-mentioned " the light device of spray-type seawaterization " and perfect, the thermal source of a kind of steam that last effect is produced as next effect is provided, and promptly secondary steam utilizes and reduces the multiple-effect spray-type sea water desalinating plant that thermal source consumes.

Task of the present utility model is finished by following technical measures.

The utility model is made up of the controlling box that has salometer, visor, extraction pipe, valve, fresh water pipe, squirt pump, equilibration tube, fresh water pump, well heater, condenser, seawater pipe, water service pipe, thermometer and tensimeter, well heater is made up of heating tube bundle, and heating tube is surperficial spiral slot line porous metal pipe; Condenser is made up of the condensation tube bank, and prolong is surperficial spiral lanced fin metal tube.

Feature of the present utility model shown in Figure 1 is: installing has the aqueduct and the well heater of nozzle in the main body I, below the main body I, be provided with a main body II, wherein be provided with perforated tube and well heater, main body I bottom be connected with perforated tube in the main body II by aqueduct.Main body II below is provided with condenser, squirt pump and the fresh water pump of prolong.The tubing system of this device is: the vapour pipe of main body I is connected with the well heater import of main body II, the heater outlet of main body II is connected with the prolong import of condenser with vapour pipe, the prolong outlet of condenser is connected with the fresh water pump import, the dense water pipe of main body II is connected with squirt pump, the extraction pipe of main body I and main body II is connected with squirt pump, and the seawer outlet pipe of condenser is connected with the squirt pump import.

At preheater of main body I one side installing, be provided with well heater in the preheater, well heater is made up of heating tube bundle, and heating tube is spiral slot line porous metal pipes, heating tube in the preheater is connected with water service pipe with connecting leg respectively, and the heater outlet of main body I is connected with preheater.

This device with seawater as the water coolant of condenser, by special-purpose sea-water pump or other the satisfactory sea water systems supply seawater that links to each other with the import of condenser.The seawer outlet of condenser links to each other with the import of squirt pump, makes the squirt pump works better, produces that suction extracts non-condensable gases in the main body and concentrated seawater and with outside its discharger.

As thermal source or other the suitable fluids hot water that adds as this device, these current flow into preheater as preheater thermal source, heated feed water to this device behind the well heater of main body I with diesel coolant.

Seawater---former water enters the well heater in the preheater and be drizzle shape or the vaporific spray heater surfaces in the main body I by aqueduct from nozzle after preheating, carburation by evaporation in a vacuum after the heating, and this is an effect; The water vapor that generates rises and enters the well heater of main body II through vapour pipe.Unevaporated seawater sprays through the perforated tube that aqueduct enters the main body II in the main body I, is injected in main body II heater surfaces and is heated the back carburation by evaporation, and this is two effects.Steam rises to and is condensed into water after vapour pipe enters condenser; The seawater that steam in the tube bank of main body II well heater is sprayed at heater surfaces is condensed into water, flows into the condenser cooling by main body II heater outlet, and two strands of distilled water are assembled after the salometer detection is extracted out by fresh water pump, enter sump through water outlet.

The dense water of a part of failing in the feedwater to be subjected to thermal evaporation is delivered to outside this device with seawater after dense water pipe is extracted out by squirt pump.Main intravital non-condensable gases is pumped in the squirt pump by the vertical bleeding point of main body and is taken away by seawater through the squirt pump outlet, thereby makes main intravital air pressure step-down reach certain vacuum tightness.

The utility model compared with prior art has following advantage:

1, the utility model is further perfect on original " spray-type sea water desalinating plant " structure, adopt the spray-type feedwater, well heater is horizontal and the basis of enhanced tube heat transfer technology on, the steam that last effect is produced is as the thermal source of next effect, be the utilization again of secondary steam, greatly reduce thermal source consumption.

2, the utility model adopts twice spray and repeatedly utilizes steam, after vapour pipe enters condenser, be condensed into the seawater that the steam in the tube bank of water and main body II well heater sprayed at the well heater outside surface by the steam that rises in the main body II and be condensed into water, flow into the condenser cooling through main body II heater outlet again, two strands of water compile, thereby fresh water yield increases greatly under identical thermal source condition.

The explanation of accompanying drawing drawing:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A sectional view among Fig. 1.

Fig. 3 is the B-B sectional view among Fig. 1.

Fig. 4 is the C-C sectional view among Fig. 1.

Following the utility model will describe in detail embodiment (in conjunction with the accompanying drawings).

The utility model shown in Figure 1 is made up of the controlling box 1 that has salometer 2, visor 6, extraction pipe 12, valve (13,24 and 37), fresh water pipe 19, squirt pump 16, equilibration tube 17, fresh water pump 18, well heater (5,11 and 34), condenser 20, seawater pipe 21, water service pipe 22, thermometer 26 and tensimeter 27, main body I 31 and main body II 10.Well heater (5,11 and 34) is made up of heating tube bundle, and heating tube 32 is surperficial spiral slot line porous metal pipe; Condenser 20 is made up of the condensation tube bank, and prolong 33 is surperficial spiral slot line lanced fin metal tube.

Set gradually aqueduct 3, nozzle 4 and well heater 5 in the main body I 31 from top to bottom.Set gradually perforated tube 8 and well heater 11 in the main body II 10 from top to bottom, main body I 31 bottoms are connected with perforated tube 8 in the main body II 10 by aqueduct 7.

Main body II 10 belows are provided with condenser 20, squirt pump 16 and the fresh water pump 18 of prolong 33.The vapour pipe 25 of main body I 31 is connected with well heater 11 imports of main body II 10, well heater 11 outlet 23 of main body II 10 all is connected with prolong 33 imports of condenser 20 with vapour pipe 9, prolong 33 outlets of condenser 20 are connected with fresh water pump 18 imports, the dense water pipe 14 of main body II 10 is connected with squirt pump 16, the extraction pipe 12 of main body I 31 and main body II 10 is connected with squirt pump 16, and the seawer outlet pipe 35 of condenser 20 links to each other with squirt pump 16 imports.

At preheater 28 of main body I 31 1 sides installings, be provided with well heater 34 in the preheater 28, well heater 34 is made up of heating tube bundle, and heating tube 32 is spiral slot line porous metal pipes.Well heater 34 is connected with water service pipe 22 with connecting leg 36 respectively, and connecting leg 36 is connected with aqueduct 3, and preheater is connected with well heater 5 outlets of main body I 31.The thermal source of this device flows out the back from 5 outlets 29 of main body I 31 well heaters and flows into the thermal source of preheater as preheater.

With flow is 0.5～1m ³/ h, salt concentration are that 10PPm, pressure are the diesel coolant of 0.06MPa or suitable fluid that other temperature are 50～80 ℃ hot water that adds as this device.These devices are introduced in its well heater 5 imports 30 from main body I 31, and the preheater 28 of flowing through after heater outlet 29 water outlets, returned into diesel engine cooling system from its outlet water outlet and carry out normal circulation.

Connect the power supply of electric control box 1, regulate salometer 2, adjust the extreme value of output water salt concentration on demand.Opening seawater outlet valve in the sea water system, start sea-water pump (or the sea water system valve of outwarding winding), is that 4～28 ℃, flow are 3～6m with temperature ³/ h, pressure are that the sea intake 21 that the seawater of 0.25MPa is introduced this device enters condenser 20, discharge through squirt pump 16 by condenser 20 back parts, make squirt pump 16 works better, and another part flows into water service pipe 22.

Slowly open the valve 24 of water service pipe 22, seawater (former water) enters preheater 28 preheatings after aqueduct 3 is drizzle shape or the vaporific spray surface at the well heater 5 of main body I 31 from nozzle 4, from the spray situation that visor 6 is observed feedwater, regulate feed-water valve 24 nozzle 4 is normally sprayed water.Carburation by evaporation in a vacuum after the seawater on well heater 5 surfaces of main body I 31 is heated, stoste can not undergo phase transition.

The water vapor rising that produces enters vapour pipe 25 and enters in well heater 11 tube banks of main body II 10.Unevaporated seawater enters ejection behind the perforated tube 8 of main body II through aqueduct 7 in main body I 31, and spray is heated the back carburation by evaporation on the surface of the well heater 11 of main body II.Steam rises to and is condensed into water after vapour pipe 9 enters condenser 20; The seawater that steam in 11 tube banks of main body II 10 well heaters is sprayed at well heater 11 outside surfaces is condensed into water, enter condenser 20 coolings by main body II well heater 11 outlets 23 outflows, two strands of water are assembled after salometer 2 detects, the fresh water that meets predetermined salt concentration requirement is extracted out by fresh water pump 18, enters sump through fresh water pump outlet 19.In the main body II 10 unevaporated concentrated seawater through valve 37 by squirt pump 16 dischargers outside.

Under squirt pump 16 effects, along with main body I well heater 5 continuous supply thermals source and condenser 20 continuous supply seawater and low-temperature receivers, the energy of water vapor is constantly changed, and just continuously produces fresh water.The unevaporated seawater (concentrated seawater) of main body II 10 inside through fresh water pipe 14 enter squirt pump 16 with seawater outside seawer outlet 15 dischargers.More than be embodiment 1 of the present utility model.

Embodiment 2, and the structure of embodiment 2 is identical with embodiment 1.When this device was used for the solution concentration of chemical industry, pharmacy, beverage industry, its flow process was identical with embodiment 1, and valve-off 37 is opened valve 13, and concentrated solution is collected through valve 13.

Claims

1, a kind of multiple-effect spray-type sea water desalinating plant, be used for fishing boat, storeship, vessel, fresh water and chemical industry are produced in coastland and island that Freshwater resources lack, pharmacy, the solution concentration of beverage industry, by the controlling box that has salometer [2] [1], visor [6], extraction pipe [12], valve [13,24 and 37], fresh water pipe [19], squirt pump [16], equilibration tube [17], fresh water pump [18], well heater [5,11 and 34], condenser [20], seawater pipe [21], water service pipe [22], thermometer [26] and tensimeter [27] are formed, well heater [5,11,34] form by heating tube bundle, heating tube [32] is surperficial spiral slot line porous metal pipe, condenser [20] is made up of the condensation tube bank, prolong [33] is surperficial spiral slot line lanced fin metal tube, it is characterized in that:

A) in main body [31], be provided with aqueduct [3] and the well heater [5] that has nozzle [4];

B) in main body [31] below a main body [10] is arranged, wherein be provided with perforated tube [8] and well heater [11], will be connected with perforated tube [8] in the main body [10] bottom the main body [31] by aqueduct [7];

C) main body [10] below is provided with the condenser [20] that has prolong [33], squirt pump [16] and fresh water pump [18], the vapour pipe [25] of main body [31] is connected with well heater [11] import of main body [10], well heater [11] outlet [23] of main body [10] all is connected with prolong [33] import of condenser [20] with vapour pipe [9], prolong [33] outlet of condenser [20] is connected with fresh water pump [18] import, the dense water pipe [14] of main body [10] is connected with squirt pump [16], the extraction pipe [12] of main body [31] and main body [10] is connected with squirt pump [16], and the seawer outlet pipe [35] of condenser [20] is connected with squirt pump [16] import;

D) at main body [31] one a sides installing preheater [28], be provided with well heater [34] in the preheater [28], well heater [34] is connected with water service pipe [22] with connecting leg [36] respectively, and connecting leg [36] joins with aqueduct [3], and the import of preheater [28] is connected with well heater [5] outlet of main body [31].