CN107308666A - Sprinkling falling-film evaporator - Google Patents

Sprinkling falling-film evaporator Download PDF

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Publication number
CN107308666A
CN107308666A CN201710697044.8A CN201710697044A CN107308666A CN 107308666 A CN107308666 A CN 107308666A CN 201710697044 A CN201710697044 A CN 201710697044A CN 107308666 A CN107308666 A CN 107308666A
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CN
China
Prior art keywords
pipe
jet pipe
thermal source
heat exchanger
longitudinal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710697044.8A
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Chinese (zh)
Inventor
马括
杨波
楼波
王小聪
李仕平
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Guangzhou Special Pressure Equipment Inspection and Research Institute
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Guangzhou Special Pressure Equipment Inspection and Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Special Pressure Equipment Inspection and Research Institute filed Critical Guangzhou Special Pressure Equipment Inspection and Research Institute
Priority to CN201710697044.8A priority Critical patent/CN107308666A/en
Publication of CN107308666A publication Critical patent/CN107308666A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/0011Heating features
    • B01D1/0041Use of fluids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/02Evaporators with heating coils
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/16Evaporating by spraying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/22Evaporating by bringing a thin layer of the liquid into contact with a heated surface

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention discloses a kind of sprinkling falling-film evaporator, including heat exchanger shell, and it is arranged on thermal source coiled pipe and cloth liquid jet pipe inside the heat exchanger shell, the thermal source coiled pipe is longitudinally disposed, the upper end mouth of pipe of the thermal source coiled pipe is heat source medium intake, the lower end mouth of pipe of the thermal source coiled pipe is heat source medium outlet, the thermal source coiled pipe is formed with many spaced horizontally-arranged pipes between its upper pipes mouthful and the lower end mouth of pipe, the cloth liquid jet pipe includes longitudinal jet pipe and at least one horizontal jet pipe on longitudinal jet pipe, the upper end mouth of pipe closing of longitudinal jet pipe, the lower end mouth of pipe of longitudinal jet pipe is organic media intake, the at least one horizontal jet pipe is arranged at intervals along the longitudinal direction, the horizontal jet pipe is nested between the two adjacent horizontally-arranged pipes of the thermal source coiled pipe, the horizontal jet pipe is provided with nozzle.The sprinkling falling-film evaporator, it is possible to increase the uniformity of heat exchange, improves heat-transfer effect.

Description

Sprinkling falling-film evaporator
Technical field
The present invention relates to vaporizer technology field, more particularly to a kind of sprinkling falling-film evaporator.
Background technology
With the shortage of fossil energy and becoming increasingly conspicuous for environmental problem, the middle-low temperature heat of industrial system utilizes, The renewable energy power generation such as heat mode is increasingly paid attention to using organic media Rankine cycle acting by people.In the circulating cycle, steam It is to realize that organic media converts from liquid to gaseous state and produces the main heat exchanger components of superheated steam to send out device.Wherein, falling liquid film is sprayed Evaporator uses the impacting type heat convection mode that organic media is sprayed, and preferable heat-transfer effect can be played, in industrial system In be widely used.Traditional, the spray piping of sprinkling falling-film evaporator is typically located at the top of heating tube bundle, whole heat exchanger Region heat exchange is not uniform enough, and overall heat-transfer effect still has room for improvement.
The content of the invention
Based on this, it is necessary to provide a kind of sprinkling falling-film evaporator, sprinkling falling-film evaporator heat exchange is uniform, heat-transfer effect It is high.
Its technical scheme is as follows:
A kind of sprinkling falling-film evaporator, including heat exchanger shell, and it is arranged on the thermal source inside the heat exchanger shell Coiled pipe and cloth liquid jet pipe, the thermal source coiled pipe are longitudinally disposed, and the upper end mouth of pipe of the thermal source coiled pipe is heat source medium Intake, the lower end mouth of pipe of the thermal source coiled pipe is heat source medium outlet, the thermal source coiled pipe its upper pipes mouthful with Many spaced horizontally-arranged pipes are formed between the mouth of pipe of lower end, the cloth liquid jet pipe includes longitudinal jet pipe and located at described vertical To at least one horizontal jet pipe on jet pipe, the upper end mouth of pipe closing of longitudinal jet pipe, the lower end mouth of pipe of longitudinal jet pipe For organic media intake, at least one horizontal jet pipe is arranged at intervals along the longitudinal direction, and the horizontal jet pipe is nested in institute Between the two adjacent horizontally-arranged pipes for stating thermal source coiled pipe, the horizontal jet pipe is provided with nozzle.
In one of the embodiments, longitudinal jet pipe is arranged on the middle part of the heat exchanger shell, the longitudinal direction spray The both sides of pipe are equipped with the thermal source coiled pipe, and the both sides of longitudinal jet pipe are equipped with least one horizontal jet pipe, right The every horizontal jet pipe of side is answered to be nested between the two adjacent horizontally-arranged pipes of the thermal source coiled pipe of respective side.
In one of the embodiments, the cloth liquid jet pipe also includes connecting spray nozzle, and longitudinal jet pipe is at least two, The lower end of at least two longitudinal jet pipes is connected with the connecting spray nozzle, and the connecting spray nozzle is provided with to be sprayed with the longitudinal direction The connector of the lower end mouth of pipe connection of pipe.
In one of the embodiments, the sprinkling falling-film evaporator also includes baffle plate, and the baffle plate setting is in heat exchanger The top of the inside of housing, and the baffle plate is located at the top of the thermal source coiled pipe and cloth liquid jet pipe, the end of the baffle plate It is provided between the side wall of the heat exchanger shell on organic media outlet, the heat exchanger shell in the top of the baffle plate Provided with steam outlet, the steam outlet is connected with the organic media outlet.
In one of the embodiments, the horizontal jet pipe is at least two, positioned at the top the horizontal jet pipe with Flow distance is preset between the horizontally-arranged pipe of the top of the thermal source coiled pipe.
In one of the embodiments, the flow distance is 15mm~40mm.
In one of the embodiments, the horizontal jet pipe is provided with multiple nozzles, and multiple nozzles are in transverse direction It is arranged at intervals, is preset between the outermost nozzle of the heat exchanger shell and the side wall of the heat exchanger shell Exchange heat distance.
In one of the embodiments, the nozzle is arranged on the downside of the horizontal jet pipe, and the nozzle is tilted down 40 °~60 ° settings.
In one of the embodiments, the sprinkling falling-film evaporator also includes being arranged on outside the heat exchanger shell Woven hose, connecting tube and pump, the bottom of the heat exchanger shell are formed with liquid storage pool, thermal source coiled pipe and cloth the liquid jet pipe Be arranged on the top of the liquid storage pool, one end of the woven hose is connected with the liquid storage pool, the other end of the woven hose with The pump intake connection of the pump, one end of the connecting tube is connected with the pump discharge of the pump, the other end of the connecting tube and The organic media intake connection of longitudinal jet pipe.
In one of the embodiments, the bottom of the heat exchanger shell is additionally provided with liquid return hole, the liquid return hole with it is described Liquid storage pool is connected.
The beneficial effects of the present invention are:
The sprinkling falling-film evaporator, thermal source coiled pipe is used to convey heat source medium, the upper end mouth of pipe position of thermal source coiled pipe In the top of heat exchanger shell, the lower end mouth of pipe of thermal source coiled pipe is located at the bottom of heat exchanger shell, and heat source medium is situated between from thermal source The input of matter intake is exported after transmitting heat release cooling by horizontally-arranged pipe from heat source medium outlet, in transmitting procedure from top to bottom The temperature of heat source medium is gradually reduced, and cloth liquid jet pipe is used to convey organic media liquid, and the lower end mouth of pipe of longitudinal jet pipe, which is located at, to be changed The bottom of hot device housing, organic media passes through spray from the input of organic media intake flows into horizontal jet pipe from bottom to top Mouth is sprayed on the horizontally-arranged pipe of thermal source coiled pipe, and organic media follows Bernoulli equation principle in flow process, flowing it is dynamic Static energy can be changed into, more up flowing static pressure is bigger, and the injection flow sprayed by nozzle is also bigger, and then, organic media Injection flow is sized to, heat source medium temperature high position at nozzle injection corresponding with the temperature height of heat source medium Organic media flow correspondence is more, and the organic media flow correspondence that nozzle sprays at the low position of heat source medium temperature is few, can be with The heat exchange area inside whole heat exchanger shell is exchanged heat more uniform, improve heat-transfer effect;In addition, for the thermal source at same layer Heat source medium in medium and organic media, horizontally-arranged pipe is gradually reduced towards the direction temperature close to horizontal jet pipe, and transverse jet Organic media in pipe gradually increases towards the direction injection flow close to horizontally-arranged pipe, and the injection flow size of organic media also can Enough corresponding with heat source medium temperature height, heat exchange is uniform, and heat-transfer effect is good.The sprinkling falling-film evaporator, by setting The structure and arrangement of thermal source coiled pipe and cloth liquid jet pipe so that the injection flow size energy of organic media in heat transfer process It is enough corresponding with heat source medium temperature height, it is possible to increase the uniformity of heat exchange, improve heat-transfer effect.
Brief description of the drawings
Fig. 1 is the structural representation of the sprinkling falling-film evaporator described in the embodiment of the present invention;
Fig. 2 is the A-A sectional views in Fig. 1.
Description of reference numerals:
100th, heat exchanger shell, 110, steam outlet, 120, liquid storage pool, 130, liquid return hole, 200, thermal source coiled pipe, 210th, heat source medium intake, 220, heat source medium outlet, 230, horizontally-arranged pipe, 300, cloth liquid jet pipe, 310, longitudinal jet pipe, 312nd, organic media intake, 320, horizontal jet pipe, 330, nozzle, 340, connecting spray nozzle, 342, connector, 400, baffle plate, 500th, organic media outlet, 600, woven hose, 700, connecting tube, 800, pump.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing Give the better embodiment of the present invention.But, the present invention can be realized in many different forms, however it is not limited to herein Described embodiment.On the contrary, the purpose for providing these embodiments is to make to understand more the disclosure Plus it is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.On the contrary, when element be referred to as " directly existing " another element " on " when, In the absence of intermediary element.Term as used herein " vertically ", " level ", "left", "right" and similar statement are For illustrative purposes, it is unique embodiment to be not offered as.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " including one or more The arbitrary and all combination of related Listed Items.Term as used herein " first ", " second " etc. are used herein In distinguishing object, but these objects should not be limited by these terms.
As shown in figure 1, a kind of sprinkling falling-film evaporator, including heat exchanger shell 100, and it is arranged on the heat exchanger shell Thermal source coiled pipe 200 and cloth liquid jet pipe 300 inside body 100.The thermal source coiled pipe 200 is longitudinally disposed, the thermal source snake The upper end mouth of pipe of shape pipe 200 is heat source medium intake 210, and the lower end mouth of pipe of the thermal source coiled pipe 200 draws for heat source medium Outlet 220.The thermal source coiled pipe 200 is formed with many spaced horizontally-arranged pipes between its upper pipes mouthful and the lower end mouth of pipe 230.The cloth liquid jet pipe 300 includes longitudinal jet pipe 310 and at least one horizontal jet pipe on longitudinal jet pipe 310 320.The upper end mouth of pipe closing of longitudinal jet pipe 310, the lower end mouth of pipe of longitudinal jet pipe 310 is organic media intake 312.At least one horizontal jet pipe 320 is arranged at intervals along the longitudinal direction, and the horizontal jet pipe 320 is nested in the thermal source snake Between the two adjacent horizontally-arranged pipes 230 of shape pipe 200.The horizontal jet pipe 320 is provided with nozzle 330.
In the present embodiment, longitudinally refer to when sprinkling falling-film evaporator is located at normal operating condition with horizontal plane or substantially Vertical direction, laterally refers to and plane-parallel or direction that be substantially parallel.Specifically, when horizontal jet pipe 320 is many, The every horizontal correspondence of jet pipe 320 is nested between the wherein two adjacent horizontally-arranged pipes 230 of the thermal source coiled pipe 200.
The sprinkling falling-film evaporator, thermal source coiled pipe 200 is used to convey heat source medium, the upper end of thermal source coiled pipe 200 The mouth of pipe is located at the top of heat exchanger shell 100, and the lower end mouth of pipe of thermal source coiled pipe 200 is located at the bottom of heat exchanger shell 100, heat Source medium is inputted by defeated from heat source medium outlet 220 after the transmission heat release cooling of horizontally-arranged pipe 230 from heat source medium intake 210 Go out, the temperature of heat source medium is gradually reduced from top to bottom in transmitting procedure, cloth liquid jet pipe 300 is used to convey organic media liquid Body, the lower end mouth of pipe of longitudinal jet pipe 310 is located at the bottom of heat exchanger shell 100, and organic media is defeated from organic media intake 312 Enter from bottom to top to flow into horizontal jet pipe 320, sprayed by nozzle 330 on the horizontally-arranged pipe 230 of thermal source coiled pipe 200, Organic media follows Bernoulli equation principle in flow process, and the kinetic energy of flowing is changed into static energy, more up flows static pressure more Greatly, the injection flow for spraying organic media by nozzle 330 is also bigger, and then, the injection flow of organic media be sized to The temperature height of heat source medium is corresponding, the organic media flow pair that nozzle 330 sprays at the high position of heat source medium temperature Ying Duo, the organic media flow correspondence that nozzle 330 sprays at the low position of heat source medium temperature is few, can make whole heat exchanger Heat exchange area heat exchange inside housing 100 is more uniform, improves heat-transfer effect;In addition, for the heat source medium at same layer and having Heat source medium in machine medium, horizontally-arranged pipe 230 is gradually reduced from edge to intermediate flow temperature, and having in horizontal jet pipe 320 Machine medium gradually increases from centre to edge flowing injection flow, and the injection flow size of organic media also can be with heat source medium Temperature height it is corresponding, heat exchange is uniform, and heat-transfer effect is good.The sprinkling falling-film evaporator, by setting thermal source coiled pipe 200 With the structure and arrangement of cloth liquid jet pipe 300 so that the injection flow of organic media is sized to and heat in heat transfer process The temperature height of source medium is corresponding, it is possible to increase the uniformity of heat exchange, improves heat-transfer effect.
In the present embodiment, longitudinal jet pipe 310 is arranged on the middle part of the heat exchanger shell 100.Longitudinal jet pipe 310 both sides are equipped with the thermal source coiled pipe 200.The both sides of longitudinal jet pipe 310 are equipped with least one transverse direction Jet pipe 320, it is two adjacent that the every horizontal jet pipe 320 of respective side is nested in the thermal source coiled pipe 200 of respective side Between the horizontally-arranged pipe 230.Using said structure, introduced by organic media intake 312 after organic media, organic media is first The nozzle 330 for flowing through longitudinal jet pipe 310 and then being transmitted separately to again on the horizontal jet pipe 320 of both sides, the horizontal jet pipe 320 of both sides The horizontally-arranged pipe 230 for spraying organic media and thermal source coiled pipe 200 respectively is exchanged heat, and heat exchange efficiency is high, heat transfer space utilization rate It is high.
Further, as shown in Figure 1 and Figure 2, the cloth liquid jet pipe 300 also includes connecting spray nozzle 340.Longitudinal jet pipe 310 be at least two, and the lower end of at least two longitudinal jet pipes 310 is connected with the connecting spray nozzle 340.The connection spray Pipe 340 is provided with the connector 342 connected with the lower end mouth of pipe of longitudinal jet pipe 310.By setting at least two longitudinal direction sprays Pipe 310, and longitudinal jet pipe 310 connected by connecting spray nozzle 340, can be by being passed through organic media, you can make at connector 342 Obtain organic media to input by the organic media intake 312 of longitudinal jet pipe 310, organic media flows through many longitudinal jet pipes 310, Then correspond to and transmit into the horizontal jet pipe 320 on every longitudinal jet pipe 310, sprayed by the nozzle 330 on each horizontal jet pipe 320 Go out and exchanged heat with thermal source coiled pipe 200, can further improve heat exchange efficiency, improve heat transfer space utilization rate.
In the present embodiment, at least two longitudinal jet pipes 310 are spaced are arranged on the heat exchanger shell along the longitudinal direction 100 middle part, structure neat appearance.In the present embodiment, when longitudinal jet pipe 310 is at least two, positioned at longitudinal jet pipe The 310 thermal source coiled pipe 200 per sides corresponds at least two, the every thermal source coiled pipe 200 and every longitudinal jet pipe 310 are correspondingly arranged.
Further, the sprinkling falling-film evaporator also includes baffle plate 400.The baffle plate 400 is arranged on heat exchanger shell The top of 100 inside, and the baffle plate 400 is located at the top of the thermal source coiled pipe 200 and cloth liquid jet pipe 300.The gear Organic media outlet 500 is provided between the end of plate 400 and the side wall of the heat exchanger shell 100.The heat exchanger shell Steam outlet 110 is provided with 100 in the top of the baffle plate 400, the steam outlet 110 is drawn with the organic media Mouth 500 is connected.By setting baffle plate 400, the end of baffle plate 400 can form organic Jie between the side wall of heat exchanger shell 100 Matter outlet 500, and then so that organic media outlet 500 is arranged in the side-walls of heat exchanger shell 100, full after heat exchange Superheated steam, superheated steam edge can be further heated as along along journey flow to organic media outlet 500 with steam The side-walls for heat exchanger shell 100 lead to steam outlet 110 and discharged, and can reduce the dead angle of heat exchange, make full use of and change Heat transfer area inside hot device housing 100.In the present embodiment, the steam outlet 110 is used to be connected with steam pipe, and then will Superheated steam is drawn out to steam turbine acting.Alternatively, the steam outlet 110 is arranged on the heat exchanger shell 100 Upper end.
Alternatively, the portions end of the baffle plate 400 is connected with the side wall of the heat exchanger shell 100, the baffle plate 400 Remaining end and heat exchanger shell 100 side wall between form the organic media outlet 500, baffle plate 400 is simple in construction, Connected mode is simple.In the present embodiment, the upper end of longitudinal jet pipe 310 is connected with baffle plate 400, and longitudinal jet pipe 310 can pass through Baffle plate 400 is fixedly mounted on inside heat exchanger shell 100.
In the present embodiment, the horizontal jet pipe 320 is at least two, positioned at the horizontal jet pipe 320 of the top and institute Flow distance is preset between the horizontally-arranged pipe 230 of the top for stating thermal source coiled pipe 200.It so, it is possible to ensure following heat exchange Organic saturated vapor afterwards can be further heated to superheated steam when flowing up by the progress of thermal source coiled pipe 200.Enter One step, the flow distance is 15mm~40mm, it is ensured that organic saturated vapor after heat exchange can be effectively heated Vapours.Optionally, the flow distance is 20mm, can realize that organic saturated vapor is effectively heated superheated steam, again The heat transfer space inside heat exchanger shell 100 can be made full use of.
In the present embodiment, the horizontal jet pipe 320 is provided with multiple nozzles 330, and multiple nozzles 330 are in transverse direction It is arranged at intervals.Close to the outermost nozzle 330 and the heat exchanger shell 100 of the side wall of the heat exchanger shell 100 Side wall between be preset with heat exchange distance.And then, outermost nozzle 330 from the side wall of heat exchanger shell 100 have it is certain away from From leaving certain heat exchange area, be easy to after heat exchange below organic saturated vapor for producing can be by during flowing up Further it is heated to be superheated steam.Further, the flow distance is 15mm~40mm, it is ensured that leave effective heat-transfer surface Product, it is ensured that organic saturated vapor below can be effectively heated superheated steam.Optionally, the flow distance is 20mm, It can realize that organic saturated vapor is effectively heated superheated steam, the heat exchange inside heat exchanger shell 100 can be made full use of again Space.
In the present embodiment, the nozzle 330 is arranged on the downside of the horizontal jet pipe 320, and the nozzle 330 is tilted down 40 °~60 ° settings.And then, organic media can preferably be ejected into downwards the horizontally-arranged pipe of thermal source coiled pipe 200 by nozzle 330 230 surfaces, improve heat transfer effect.Alternatively, the nozzle 330 tilts down 45 ° of settings, and jeting effect is good.
In the present embodiment, the sprinkling falling-film evaporator also includes being arranged on the transfusion outside the heat exchanger shell 100 Pipe 600, connecting tube 700 and pump 800.The bottom of the heat exchanger shell 100 is formed with liquid storage pool 120, and the thermal source is snakelike Pipe 200 and cloth liquid jet pipe 300 are arranged on the top of the liquid storage pool 120.One end of the woven hose 600 and the liquid storage pool 120 connections, the other end of the woven hose 600 is connected with the pump intake of the pump 800.One end of the connecting tube 700 and institute State the pump discharge connection of pump 800, the organic media intake 312 of the other end of the connecting tube 700 and longitudinal jet pipe 310 Connection.Using said structure, the bottom of heat exchanger shell 100 is liquid storage pool 120, can store and collect organic media, fraction Spraying the surface of thermal source coiled pipe 200 can drop onto downwards in liquid storage pool 120 without the organic media as steam, collect Organic media liquid after woven hose 600 by pump 800 act on input to connecting tube 700, then conveyed by connecting tube 700 Into longitudinal jet pipe 310, circulation is formed, the recycling of organic media is realized.
Further, the bottom of the heat exchanger shell 100 is additionally provided with liquid return hole 130, and the liquid return hole 130 stores with described Liquid pool 120 is connected.And then, superheated steam by steam outlet 110 discharge be incorporated into steam turbine acting be over after, condense Organic media into liquid can send back to liquid storage pool 120 by liquid return hole 130 again again, pass through woven hose 600, pump 800 and company Adapter 700 is transported to cloth liquid jet pipe 300, realizes recycling for organic media.
The operation principle of sprinkling falling-film evaporator described in the present embodiment is as follows:Hollow arrow is simply illustrated in Fig. 1 Heat source medium, organic media flow to schematic diagram.As shown in Figure 1 and Figure 2, middle low-temperature heat source medium is from the top of heat exchanger shell 100 Heat source medium intake 210 input, from the thermal source of the bottom of heat exchanger shell 100 after the heat release of thermal source coiled pipe 200 cooling Medium outlet 220 is discharged, and temperature is gradually reduced in middle low-temperature heat source medium course of conveying, such as can be reduced to 50 DEG C from 150 DEG C Left and right.Organic media such as R245fa inputted from the organic media intake 312 of the bottom of heat exchanger shell 100 flow from bottom to top into Enter in longitudinal jet pipe 310 and horizontal jet pipe 320, organic media follows Bernoulli equation principle, more past upstream in flow process Dynamic and static pressure is bigger, and the injection flow sprayed by nozzle 330 is also bigger.Middle low-temperature heat source medium is with organic media in heat exchanger shell The inside of body 100 is exchanged heat, and the injection flow of organic media is sized to just corresponding with the temperature of heat source medium, entirely changes Heat exchange area heat exchange inside hot device housing 100 is uniform, and heat-transfer effect is good.120 DEG C can be heated to be after organic media heat exchange Superheated steam, is then drawn out to steam turbine by organic media outlet 500, steam outlet 110 and does work.Acting be over Afterwards, organic media condenses into liquid and sends back to liquid storage pool 120 by liquid return hole 130 again again, and part spray arrives thermal source coiled pipe 200 Downward drip of organic media liquid that surface turns into steam is also pooled in liquid storage pool 120, with passing through organic Rankine bottoming cycle Low temperature organic media liquid mixing afterwards, then low-temperature heat source Jie in absorption repeatedly is transmitted back to inside heat exchanger shell 100 by pump 800 The heat of matter, realizes cycle heat exchange.Sprinkling falling-film evaporator described in the present embodiment, it is specifically a kind of to be used in industrial system Falling film evaporation heat exchanger in the organic media Rankine cycle of the renewable energy power generations such as low temperature heat, underground heat etc., passes through Injection flow size is corresponding with heat source medium temperature height when design to exchange heat, simple in construction, can effectively improve overall biography Thermal effect, makes full use of the heat transfer space inside heat exchanger shell 100, and heat exchange is uniform, and the thermal efficiency is high.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

1. a kind of sprinkling falling-film evaporator, it is characterised in that including heat exchanger shell, and be arranged in the heat exchanger shell The thermal source coiled pipe and cloth liquid jet pipe in portion, the thermal source coiled pipe are longitudinally disposed, and the upper end mouth of pipe of the thermal source coiled pipe is Heat source medium intake, the lower end mouth of pipe of the thermal source coiled pipe is heat source medium outlet, and the thermal source coiled pipe is thereon Many spaced horizontally-arranged pipes are formed between end pipe mouthful and the lower end mouth of pipe, the cloth liquid jet pipe includes longitudinal jet pipe and set In at least one horizontal jet pipe on longitudinal jet pipe, the upper end mouth of pipe of longitudinal jet pipe is closed, longitudinal jet pipe The lower end mouth of pipe is organic media intake, and at least one horizontal jet pipe is arranged at intervals along the longitudinal direction, the horizontal jet pipe It is nested between the two adjacent horizontally-arranged pipes of the thermal source coiled pipe, the horizontal jet pipe is provided with nozzle.
2. sprinkling falling-film evaporator according to claim 1, it is characterised in that longitudinal jet pipe is arranged on the heat exchange The middle part of device housing, the both sides of longitudinal jet pipe are equipped with the thermal source coiled pipe, and the both sides of longitudinal jet pipe are equipped with At least one horizontal jet pipe, the every horizontal jet pipe of respective side is nested in the two of the thermal source coiled pipe of respective side Between the adjacent horizontally-arranged pipe.
3. sprinkling falling-film evaporator according to claim 2, it is characterised in that the cloth liquid jet pipe also includes connection spray Pipe, longitudinal jet pipe is at least two, and the lower end of at least two longitudinal jet pipes is connected with the connecting spray nozzle, described Connecting spray nozzle is provided with the connector connected with the lower end mouth of pipe of longitudinal jet pipe.
4. sprinkling falling-film evaporator according to claim 1, it is characterised in that also including baffle plate, the baffle plate setting exists The top of the inside of heat exchanger shell, and the baffle plate is located at the top of the thermal source coiled pipe and cloth liquid jet pipe, the baffle plate End and the heat exchanger shell side wall between be provided with organic media outlet, in the baffle plate on the heat exchanger shell Top be provided with steam outlet, the steam outlet connects with the organic media outlet.
5. sprinkling falling-film evaporator according to claim 1, it is characterised in that the horizontal jet pipe is at least two, position In the top the horizontal jet pipe and the thermal source coiled pipe the top horizontally-arranged pipe between be preset with flow distance.
6. sprinkling falling-film evaporator according to claim 5, it is characterised in that the flow distance is 15mm~40mm.
7. sprinkling falling-film evaporator according to claim 1, it is characterised in that the horizontal jet pipe is provided with multiple sprays Mouth, multiple nozzles are arranged at intervals in transverse direction, close to the heat exchanger shell the outermost nozzle with it is described Heat exchange distance is preset between the side wall of heat exchanger shell.
8. sprinkling falling-film evaporator according to claim 7, it is characterised in that the nozzle is arranged on the horizontal jet pipe Downside, the nozzle tilts down 40 °~60 ° settings.
9. the sprinkling falling-film evaporator according to claim any one of 1-8, it is characterised in that also including being arranged on described change Woven hose, connecting tube and the pump of hot device hull outside, the bottom of the heat exchanger shell are formed with liquid storage pool, the thermal source snake Shape pipe and cloth liquid jet pipe are arranged on the top of the liquid storage pool, and one end of the woven hose is connected with the liquid storage pool, described defeated The other end of liquid pipe is connected with the pump intake of the pump, and one end of the connecting tube is connected with the pump discharge of the pump, the company The other end of adapter is connected with the organic media intake of longitudinal jet pipe.
10. sprinkling falling-film evaporator according to claim 9, it is characterised in that the bottom of the heat exchanger shell is also set There is liquid return hole, the liquid return hole is connected with the liquid storage pool.
CN201710697044.8A 2017-08-15 2017-08-15 Sprinkling falling-film evaporator Pending CN107308666A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108117214A (en) * 2017-12-25 2018-06-05 重庆大学 Shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method and equipment
CN113692641A (en) * 2019-04-17 2021-11-23 株式会社威尔康 Gasifier and method for producing same

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