CN1249032A - Liquid distributor, fallig film heat exchanger and absorption refrigerator - Google Patents
Liquid distributor, fallig film heat exchanger and absorption refrigerator Download PDFInfo
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- CN1249032A CN1249032A CN97182043A CN97182043A CN1249032A CN 1249032 A CN1249032 A CN 1249032A CN 97182043 A CN97182043 A CN 97182043A CN 97182043 A CN97182043 A CN 97182043A CN 1249032 A CN1249032 A CN 1249032A
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- 238000010521 absorption reaction Methods 0.000 title claims description 30
- 238000009826 distribution Methods 0.000 claims abstract description 170
- 238000012546 transfer Methods 0.000 claims description 139
- 239000012530 fluid Substances 0.000 claims description 61
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- 238000001179 sorption measurement Methods 0.000 description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Abstract
Inexpensive liquid distributor which ensures uniform liquid distribution even when the liquid distributed is placed inclininlgy or even when foreign matter such as metal particles are mixed in the liquid. This liquid distributor is rectangular in cross section, and has an opening constituting a liquid inlet and distribution ports constituting liquid outlets. The liquid distributor comprises a primary distribution dust provided with the distribution ports at a side wall thereof, and box-shaped secondary distribution trays spaced from the sides and the bottom of the primary distribution duct and arranged in the lengthwise direction of the primary distribution duct. Liquid dripping holes from which the liquid is dripped are made in the bottom walls of the secondary distribution trays. This liquid dispenser is incorporated in a falling film heat exchanger and an absorbtion refrigerator.
Description
Technical field
The present invention relates to liquid dispensing apparatus, fallig film heat exchanger and absorption refrigerating machine.
Background technology
The fallig film heat exchanger of prior art is with liquid dispensing apparatus drip formula, fountain etc., and its fallig film heat exchanger that is used is used for evaporimeter, absorber, the regenerator of absorption refrigerating machine, the low-temperature regenerator of double utility absorption refrigerating machine more.For example, in evaporimeter, in closed container, flatly dispose many heat-transfer pipes and form nest of tubes, making the cooling medium that are accompanied by evaporation on the surface of this nest of tubes is that cooling medium liquid flows down, absorb steam by the absorber that connects above-mentioned closed container, thereby promote the evaporation of cooling medium liquid, and by its heat of evaporation by the heat exchange media in the heat-transfer pipe cooling tube.
Evaporation is carried out at the gas-liquid interface of the cooling medium liquid that covers tube surface, and the area of the part that is covered by cooling medium liquid is good more at the big more then volatility of whole area proportion of tube surface.Do not form the ratio that the cooling medium liquid that flows down liquid film can increase this area by supplying with along each heat-transfer pipe length direction with omitting.In addition, when vertically disposing multiple row heat-transfer pipe group time, supply with cooling medium liquid by length direction with omitting, can increase area by the cooling medium liquid cover part at the whole area proportion of tube surface, the performance of raising evaporimeter along the heat-transfer pipe of the epimere of each pipe row.
Therefore, in order to improve volatility, need distribute equably along each heat-transfer pipe total length to form the cooling medium liquid that flows down liquid film.In addition,, need positively on the heat transfer nest of tubes, to distribute all cooling medium liquid, flow down the invalid cooling medium liquid that liquid film just falls can not produce not form in order to form liquid film in the scope of broadness by limited cooling medium liquid quantity delivered.About this point, compare with the fountain that scatters liquid along the plane the samely, can be positively have advantage to the formula of dripping of tube surface feed fluid.
As the formula liquid dispensing apparatus that drips, for example there is the Japanese patent gazette spy to open the device of flat 5-172438 number record.In this device, promptly distribute performance in order to improve the distribution of scattering density, the primary distribution that is configured abreast with branch's header, with heat-transfer pipe with distributing pipe, disperse prevents to divide adapted drop dispersion plate to make up with cover plate, next time, the formation formula distributor that drips.
In addition, as another formula liquid dispensing apparatus that drips, for example there is the Japanese patent gazette spy to open the device of flat 7-4782 number record.In this device, has the chevron secondary distribution guide way of big width with the bottom of dish with the box-shaped primary distribution of heat-transfer pipe configured in parallel, in the four directions of the liquid blocking portion of guide way plug is set and ends wall, form plate-like, store liquid in the above, thereby prevent to disconnect at the liquid level of the occasion inclination upper side that is obliquely installed with guide way.
In addition, the method that performance descends when preventing that the heat-transfer pipe shape from causing the absorption refrigerating machine body to be obliquely installed, as the device that the Japanese patent gazette spy opens flat 8-159605 number record, dispose a plurality of recesses that extend towards tube axial direction intermittently along tube axial direction at heat-transfer pipe.
Above-mentioned fountain liquid dispensing apparatus need be provided with nozzle below the distributing pipe that be arranged in parallel with heat-transfer pipe; for micronize needs minor diameter dispense orifice below the 4mm, so, the occasion of sneaking at foreign matters such as metallics; dispense orifice is stopped up by foreign matter, occurs scattering bad.
In addition, in being recorded in the device that above-mentioned spy opens flat 5-172438 communique, 2 biographies heat pipes need 1 distributing pipe and attached cover plate and drop dispersion plate, and are complex-shaped, the cost height.In addition, open the liquid distribution device of putting down in writing in the flat 7-4782 communique above-mentioned spy, also need have the guide way that plug ends wall to 2 biographies heat pipes at a dish with in the four directions, in order successfully to make under the fluid drips, need each guide way extend be provided with towards below the projection etc. of dripping of extending, make part count many, and complex structure, thereby the cost height.
Being provided with the guide way that plug ends wall in the four directions is a kind of plate-like, can store liquid in the above, is producing the occasion of inclination because of condition is set, and primary distribution moves to the inclination lower side with the liquid of dish outflow because of being tilted on the guide way.As a result, side and lower side up, the dark pressure head that forms of the liquid of dispensing orifice is obviously different, and the flow of being located at the hole of dripping of inclination upper side reduces, and increases at the lower side flow.Like this, when liquid dispensing apparatus is obliquely installed, can stop liquid to flow out, but the skewness of length direction is still obvious from the inclination lower side of guide way.
Because primary distribution is open shape with dish, so, for the distribution of primary distribution, in the occasion that is obliquely installed, because of the different maldistributions that cause of the pressure head of the dark generation of liquid of the dispensing orifice of its upper side and lower side with the liquid of dish.
Opening flat 5-172438 communique, spy above-mentioned spy opens in any one device of flat 7-4782 communique record, be to be fixed as 2 row from the columns of the heat-transfer pipe of single liquid dispensing apparatus feed fluid, so, when the set by them is set at odd number with the columns of the heat-transfer pipe of fallig film heat exchanger, can form the liquid quantity delivered that flows down liquid film at biographies heat pipe row does not supply on the heat-transfer pipe, drop to the bottom of heat exchanger, become useless distribution, design freedom is low, hinders the optimization of considering performance, performance, size, cost.
In addition, open in the device of flat 8-159605 communique record above-mentioned spy, by disposing a plurality of recesses that extend along tube axial direction intermittently along tube axial direction in tube surface, though can make and can not descend because of inclination causes performance, but because prerequisite is to make liquid in the heat-transfer pipe uniform distribution of epimere and drip, so its effect does not reach the degree of the essence of dealing with problems.
The object of the present invention is to provide a kind of liquid dispensing apparatus,, also can realize good distribution even this device produces inclination when being provided with.
Another object of the present invention is to provide a kind of liquid dispensing apparatus, even foreign matter such as pick-up metal particle in the liquid of this device on the heat-transfer pipe that should drip also can be got rid of its influence, realizes the good distribution of liquid for a long time.
Another object of the present invention is to provide a kind of liquid dispensing apparatus, the saturated vapour pressure of the liquid even this device should drip on the heat-transfer pipe is different with the vapour pressure in the fallig film heat exchanger, also can not absorb, evaporate voluntarily and boiling causes distributing, scatters unstable, realize stable liquid supply, drip because of rapid steam.
Another object of the present invention is to provide a kind of liquid dispensing apparatus, the simple shape of this liquid dispensing apparatus, and cost is low.
Another object of the present invention is by using the aforesaid liquid distributor that a kind of high performance fallig film heat exchanger and high performance absorption refrigerating machine are provided.
Another object of the present invention is a kind of fallig film heat exchanger and absorption refrigerating machine, and wherein, the columns of heat-transfer pipe is not restricted, and the design freedom height can consider that performance, size, cost carry out optimization.
The announcement of invention
Above-mentioned purpose can realize by a kind of like this liquid dispensing apparatus is provided, this liquid dispensing apparatus will be accompanied by phase transformation in heat exchanging process liquid distributes from top and spreads on the heat transfer nest of tubes, wherein, this liquid dispensing apparatus is made of with dish with pipeline and secondary distribution primary distribution, this primary distribution forms as liquid outlet on the length direction of pipeline side by side with pipeline and is used for a plurality of dispensing orifices of dispense liquid, this secondary distribution is disposed at primary distribution with the pipeline below with this primary distribution of rim with the length direction of pipeline, corresponding above-mentioned dispensing orifice is divided into a plurality of zones along its length, and under each zone is formed for dripping the fluid drips of aforesaid liquid the hole.
In addition, above-mentioned purpose can realize by a kind of like this fallig film heat exchanger is provided, this fallig film heat exchanger has heat transfer nest of tubes and liquid dispensing apparatus, this heat transfer nest of tubes carries out heat exchange inside and outside pipe, this liquid dispensing apparatus distributes and the distribution heat exchange media from each the heat-transfer pipe top that constitutes this heat transfer nest of tubes, this heat exchange media is dirty down on one side at above-mentioned heat-transfer pipe outside wall surface formation liquid film in the gravity effect on one side, carries out heat exchange with the heat exchange media that flows through in the pipe; Wherein, the aforesaid liquid distributor is made of with dish with pipeline and secondary distribution primary distribution, this primary distribution forms as liquid outlet on pipe lengths side by side with pipeline and is used for a plurality of dispensing orifices of dispense liquid, this secondary distribution is disposed at primary distribution with the pipeline below with this primary distribution of rim with the length direction of pipeline, corresponding above-mentioned dispensing orifice is divided into a plurality of zones along its length, and under each zone is formed for dripping the fluid drips of aforesaid liquid the hole, each heat-transfer pipe that constitutes above-mentioned heat transfer nest of tubes is parallel with hole under the fluid drips that is formed at the aforesaid liquid distributor.
In addition, above-mentioned purpose can realize by a kind of so multiple effectiveness absorption refrigerating machine is provided, this multiple effectiveness absorption refrigerating machine has evaporimeter, absorber, high-temp regenerator, low-temperature regenerator, liquid dispensing apparatus and condenser, this liquid dispensing apparatus is assembled into these evaporimeters, absorber, high-temp regenerator, low-temperature regenerator, joins from the heat transfer nest of tubes top of carrying out heat exchange inside and outside pipe and scatters heat exchange media; Wherein, fallig film heat exchanger is assembled into above-mentioned evaporimeter at least, absorber, in the low-temperature regenerator any one, in this fallig film heat exchanger, the aforesaid liquid distributor is made of with dish with pipeline and secondary distribution primary distribution, this primary distribution forms as liquid outlet on pipe lengths side by side with pipeline and is used for a plurality of dispensing orifices of dispense liquid, this secondary distribution is disposed at primary distribution with the pipeline below with this primary distribution of rim with the length direction of pipeline, corresponding above-mentioned dispensing orifice is divided into a plurality of zones along its length, and under each zone is formed for dripping the fluid drips of aforesaid liquid the hole, each heat-transfer pipe that constitutes above-mentioned heat transfer nest of tubes is parallel with hole under the fluid drips that is formed at the aforesaid liquid distributor.
The simple declaration of accompanying drawing
Fig. 1 is the local section perspective view that liquid dispensing apparatus one form of implementation of the present invention is shown.
Fig. 2 be illustrate liquid dispensing apparatus cross-section structure among Fig. 1 and with the sectional drawing of the position relation of heat transfer nest of tubes.
Fig. 3 is the side view of liquid dispensing apparatus among Fig. 1.
Fig. 4 is the side view that the form of the heat transfer nest of tubes that drips when liquid dispensing apparatus shown in Figure 1 is obliquely installed vertically is shown and flows down the form of liquid film.
Fig. 5 be use deviation with mean value illustrate primary distribution from liquid dispensing apparatus shown in Figure 1 with pipeline to the figure of secondary distribution with the flow of dish.
Fig. 6 is the perspective view that the passage of liquid dispensing apparatus shown in Figure 1 is shown.
Fig. 7 is the decomposition diagram of liquid dispensing apparatus shown in Figure 1.
Fig. 8 is the decomposition diagram of the secondary distribution of liquid dispensing apparatus shown in Figure 7 with dish.
The secondary distribution of another form of implementation of Fig. 9 liquid dispensing apparatus of the present invention decomposition diagram of dish.
Figure 10 illustrates the secondary distribution decomposition diagram that coils of another form of implementation again of liquid dispensing apparatus of the present invention.
Figure 11 is the in-built sectional drawing that a form of implementation of fallig film heat exchanger of the present invention is shown.
Figure 12 is the system diagram that absorption refrigerating machine one form of implementation of the present invention is shown.
Implement optimised form of the present invention
Below, 1-4 illustrates form of implementation of the present invention with reference to the accompanying drawings.
As shown in Figure 1, liquid dispensing apparatus constitutes the pipe arrangement 3 of continue oriented liquid dispensing apparatus feed fluid and influent header 4 with pipeline 1 and opening secondary distribution with dish group 2 by the hermetic type primary distribution.The bottom of header 4 and primary distribution are with being communicated with in the pipeline 1.
The 1st member of formation 10 of コ font section constitutes with second member of formation 15 with downward コ font section by having upwards with pipeline 1 in primary distribution, and inboard section configuration is a rectangle.In addition, be respectively equipped with identical shaped a plurality of liquid distribution apertures 11 in the left and right side of the 1st member of formation 10, they about each 1 row promptly have central point on the axial straight lines of primary distribution with pipeline 1 of 2 row, and all be identical shaped.
The vertical component effect 15a of the 2nd member of formation 15 forms and will guide to the guide plate of secondary distribution with dish from the liquid that dispensing orifice 11 flows out, and a plurality of passages 16 are set.This passage 16 is used the pars intermedia opening of each liquid distribution aperture 11 of pipeline 1 in primary distribution when observing liquid dispensing apparatus from the side.In addition, though do not illustrate in the drawings, in fact the both ends of first member of formation 10 are that short leg becomes and prevents that the plug that liquid flows out from ending wall, therefore, primary distribution becomes airtight shape with pipeline 1, except with the interconnecting part of influent header 4 and liquid distribution aperture 11 do not have other and outside interconnecting part.
Secondary distribution with dish group 2 by a plurality of dish 2a, 2b ..., 2m (with reference to Fig. 5) constitutes, and is provided with hole 21 under a plurality of fluid drips at these dishes, form around it towards below projection 22.Primary distribution is located at about pipeline symmetrically with a plurality of liquid distribution apertures 11 of pipeline 1, about each set of dispense hole of 1 corresponding with each dish respectively.Therefore, coil corresponding primary distribution and be respectively two with the liquid distribution aperture 11 of pipeline 1, number is identical with each.Secondary distribution with the dish 2a, 2b ..., be provided with that hole 21 is processed to form by plunging (バ one リ Application グ) under a plurality of fluid drips below the 2m, be formed at around it towards the projection 22 of below plunging add man-hour the member by making the face of trying to get to the heart of a matter towards below form.
The liquid that is assigned with guides to header 4 by pipe arrangement 3, flows into the primary distribution pipeline, flows out from liquid distribution aperture 11 then.This liquid further by primary distribution with the vertical component effect 15a of the 2nd member of formation 15 of pipeline 1 guide to constitute secondary distribution with dish group 2 a plurality of dish 2a, 2b ..., 2m, then from be located at each the dish fluid drips under hole 21 drip on the heat transfer nest of tubes 51.
As described above, in this form of implementation, because the primary distribution pipeline is airtight shape, so, by suitably determining the internal diameter of liquid distribution aperture, the pressure differential that can be the dispensing orifice front and back with the flow resistance of liquid distribution aperture is set at bigger value, this liquid distribution aperture decision distribution from pipeline to each dish.
Therefore, even in the occasion that is obliquely installed vertically, also the distribution from pipeline to each dish is top dog the pressure differential of this flow resistance formation relatively, eliminates the influence because of the both ends difference of height that tilts to produce.
Further describe above-mentioned effect according to Fig. 5 below.
Transverse axis among the figure is for being the reel number of starting point with the influent header side, the longitudinal axis for from primary distribution with pipeline 1 supply to respectively coil 2a, 2b ..., 2m the relative deviation of the mean value of all dishes of fluid flow.In the drawings, establish liquid dispensing apparatus and be provided with obliquely vertically, illustrate that when the entrance side is watched leading section exceeds the occasion of the occasion of 30mm, low 30mm and for the liquid distribution characteristics of more complete horizontally disposed occasion.This partition characteristic through consider primary distribution with pipeline 1 internal friction loss, the leading section flow velocity descends that the static pressure that is brought is replied along with flowing to, the pressure loss of each liquid distribution aperture 11, and change at the pressure that the inclination of pipeline axial causes, and is that 13 occasion is calculated and obtained in secondary distribution with the number that coils.
As can be seen from Figure, even produce the difference of 30mm because of inclination makes leading section along the vertical direction from inlet at distributor, also the sendout of each dish can be suppressed at mean value ± 5% in, keep good partition characteristic.
In this form of implementation, make relative each secondary distribution of liquid distribution aperture 11 with dish 2a, 2b ..., 2m is 2, make all liq dispensing orifice 11 be the circle of same radius, it is disposed 2 row and make the center on straight line along pipeline axial, thereby realize above-mentioned effect.
In addition, because primary distribution is a rectangle with the axial section configuration of pipeline, so when foreign matters such as pick-up metal particle in liquid, they influence little rectangle bight delay at liquid flow.Therefore, they are caught with pipeline by primary distribution, thereby can prevent because of flowing out to secondary distribution bad with dish group 2 the dripping of hole 21 of dripping that cause.
In addition, because primary distribution is arranged on the side of pipeline with the liquid distribution aperture 11 of pipeline 1,, and plays and prevent to flow out to of the effect of above-mentioned secondary distribution with dish groups 2 so the foreign matter of being caught by above-mentioned bight remains in the bottom.
Since the opening of this liquid distribution aperture make central spot than with conduit section along the plane that is divided into two up and down 13 high positions, so can keep a certain amount of, at the foreign matter of gravity effect deposit bottom in pipeline, can realize above-mentioned foreign matter seizure effect for a long time.
In addition, supply with each secondary distribution with dish 2a, 2b ..., 2m liquid thereby help primary distribution and be roughly equal flow with the good partition characteristic of pipeline.Therefore, the amount that remains in the liquid on each dish also equates substantially.
Therefore, as shown in Figure 4, even tilt to make the distribution of the amount of dripping of liquid dispensing apparatus integral body alternately to produce the many positions of the amount of dripping and few position because of the heat transfer nest of tubes, also can move toward the inadequate zone of the amount of dripping generation few, that flow down liquid film, flow down liquid film so can generate well in the broader region of the nest of tubes few part the highest except the position from the many positions of the amount of dripping of adjacency.
In this form of implementation, as shown in Figure 6, to be secondary distribution with the outside of pipeline 1 be communicated with space in the heat exchanger through the peristome 17 of passage 16 and end with dish group 2 top in primary distribution.Therefore, the vapour pressure in supplying to the liquid relatively hot interchanger of liquid dispensing apparatus is in the occasion of superheat state, evaporating with the stage self that pipeline 1 flows out from primary distribution, becomes saturation state.Therefore, the Shi Buhui that drips can realize under the smooth and stable fluid drips because of evaporating the outside of dispersing to the heat transfer nest of tubes voluntarily.
Because of secondary distribution with evaporating the steam that produces voluntarily as the with dashed lines arrow illustrates among Fig. 6 on the dish, the peristome 17 by passage 16 and end enters in the heat exchanger.
In this form of implementation, be that the vapour pressure of setting in the liquid relatively hot interchanger that should be assigned on the heat transfer nest of tubes 5 is a superheat state, and be provided with a plurality of passages 16 as shown in Figure 6, but when not being also can omit passage when under such condition, using liquid dispensing apparatus.But when starting, in the process of secondary distribution, need to discharge gas inside, so peristome 17 preferably is set with formation liquid level on coiling.
In this form of implementation, secondary distribution with the dish 2a, 2b ..., 2m a plurality of fluid drips of following formation under hole 21, be provided with around the hole 21 under these a plurality of fluid drips towards below projection 22, so liquid can drip really hole 21 under, can not be attached to below the dish, fall between heat transfer nest of tubes outside or the heat-transfer pipe, invalidly scatter.In addition, owing to projection 22 forms the following deformation of member of dish by plunging processing,, can make cost low so need not use new parts in addition.
In addition, under the fluid drips hole 21 in liquid dispensing apparatus integral body along assembly axis to forming multiple row, so dripping also is the multiple row shape, by each heat-transfer pipe in making these each row and being arranged at heat exchanger or the heat-transfer pipe row are corresponding longitudinally, can be positively all liq of supply be guided to the heat transfer nest of tubes.
Below, further specify liquid dispensing apparatus according to Fig. 7 and Fig. 8.
Liquid dispensing apparatus be used to by continuing to constitute primary distribution with the 1st member the 10, the 2nd member 15 of pipeline, and secondary distribution constitute with dish group 2, secondary distribution with dish group 2 as shown in Figure 8 will be identical shaped secondary distribution with coil 2a, 2b ..., 2h becomes row along primary distribution with the axially-aligned of pipeline.
At the continue peristome 41 of liquid supplying tubing of influent header 4 setting, make in the influent header 4 peristome 18 that is communicated with in pipeline with primary distribution with the 1st member 10 settings of pipeline in primary distribution.Secondary distribution dish 2a, 2b ..., 2h is roughly rectangular shape, so be easy to connect.Although distributor for the formula of dripping, the assembling of device integral body is also very easy, but be arranged at the axial columns in hole 21 under secondary distribution dish group 2 the fluid drips by increase, can 1 group be constituted to multiple row heat-transfer pipe feed fluid, can reduce the cost of fallig film heat exchanger integral body.
In addition, according to this form of implementation, with identical shaped dish 2a, 2b ..., 2h row shape configuration constitute secondary distribution with dish group 2, so, change entire length by the quantity that increases and decreases this dish, the heat exchangers different at capacity also can use same dish, thereby boost productivity by the batch process of same parts, promptly reduce cost.
Below, another form of implementation of the constructive method of liquid dispensing apparatus of the present invention is described according to Fig. 9.
Among the figure, it or not secondary distribution dish 2 by identical shaped a plurality of dish pie graphs 7, but with the identical dish body 25 of pipeline dish demarcation strip 26 is set with primary distribution in length, and constituting secondary distribution with coiling 2, this dish demarcation strip 26 is for being used to stop these zones device of liquid flow each other.
In this form of implementation constitute with the available 1 dish demarcation strip of part 26 of dish 2 inside owing to cut apart secondary distribution, so have the material of checking and regulating body can be less, can light-weighted effect.
Below, according to Figure 10 another form of implementation of the present invention is described.
Liquid dispensing apparatus shown in the figure has the parts identical with Fig. 1-form of implementation shown in Figure 8 or form of implementation shown in Figure 9 and constitutes and interior shape, but following aspect difference.
That is, in Figure 10, primary distribution is located at length direction central portion above the above-mentioned pipeline 1 with the fluid intake of pipeline 1 and influent header 4.In this form of implementation, from inlet pipe arrangement 3 about the primary distribution of influent header 4 influent distributors is diverted to when laterally watching liquid dispensing apparatus with the liquid of pipeline, afterwards, the same with Fig. 1-Fig. 8 or form of implementation shown in Figure 9, be assigned to secondary distribution with dish 2 from liquid distribution aperture.
Like this, in liquid dispensing apparatus shown in Figure 10, primary distribution is located at length direction central portion above the above-mentioned pipeline 1 with the fluid intake of pipeline 1 and influent header 4, so, about the liquid of inflow is diverted to the flow that equates substantially separately., compare with the form of implementation of Fig. 1-shown in Figure 8, the maximum stream flow in the pipeline is roughly half for this reason.Therefore, can reduce the basal area of primary distribution, also reduce to be filled to the volume of inner fluid, so but have the effect of lightweight, cost degradation with pipeline.
In addition, relative Fig. 1～form of implementation shown in Figure 8, have and to realize the effect of 2 times fluid flow by the identical primary distribution of section with pipeline with its liquid dispensing apparatus that has been used, so the formation of Figure 10 is particularly suitable for using at large-scale jumbo fallig film heat exchanger the occasion of these liquid dispensing apparatus.
Below, the example of the form of implementation of fallig film heat exchanger of the present invention is described according to Fig. 2 and Figure 11.
Figure 11 is the in-built sectional drawing of form of implementation example that fallig film heat exchanger of the present invention is shown.As shown in the figure, fallig film heat exchanger 70 by casing be closed container 71, be arranged at its inner dissemination apparatus be liquid dispensing apparatus 72 and heat transfer nest of tubes 5, with form flow down liquid film the 1st heat exchange media from the heat exchanger exterior guiding to these heat transfer nest of tubes 5 surfaces inlet pipe arrangement 3 and influent header 4, for the moment store the liquid that falls from the nest of tubes surface lower liquid delay portion 6, from this liquid holdup portion 6 stream 80～90 of the outlet pipe arrangement 7 of guiding fluid outside and the 2nd heat exchange media that flows in heat-transfer pipe etc. is constituted.Here, liquid dispensing apparatus 72 is the aforesaid liquid distributor.
The stream 80～90 of the 2nd heat exchange media is made of inlet pipe arrangement the 80, the 1st header the 81, the 1st passage the 82, the 2nd header the 83, the 2nd passage the 84, the 3rd header the 85, the 3rd passage the 86, the 4th header the 87, the 4th passage the 88, the 5th header 89 of being located at casing 71 bottoms and the outlet pipe arrangement 90 of being located at casing 71 tops.
The the 1st～the 4th passage 82,84,86,88 is the stream of the pipe inboard of each little nest of tubes of the occasion that heat transfer nest of tubes 5 is divided into a plurality of little nest of tubes along short transverse.In addition, the outer space of the heat-transfer pipe in these streams 80～90 and the casing 71 does not have interconnecting part, is in released state fully.
Here, the heat-transfer pipe that constitutes heat transfer nest of tubes 5 is parallel to each other respectively, and also disposes abreast with liquid dispensing apparatus 72, and these liquid dispensing apparatus 72 and heat transfer nest of tubes 5 flatly are provided with.In addition, each heat-transfer pipe vertically forms multiple row in heat transfer nest of tubes 5, and this columns is 7 row.On the other hand, be provided with hole 21 under a plurality of fluid drips below liquid dispensing apparatus 72, as shown in figure 11, hole 21 is to form the multiple row parallel with primary distribution usefulness pipeline 1 under these a plurality of fluid drips as the form of liquid dispensing apparatus integral body.The columns that hole 21 forms under this fluid drips is 7 row as shown in Figure 2, and the columns that constitutes with each heat-transfer pipe in the above-mentioned heat transfer nest of tubes 5 is identical, is 100%.
The position of the row of the row in hole and heat-transfer pipe relation is positioned under each fluid drips the heat-transfer pipe row and is configured under the hole as shown in Figure 2 under the fluid drips.That is, make the center of the center line 51 of each heat-transfer pipe row by hole 21 under the fluid drips of portion provided thereon.
In this form of implementation, fallig film heat exchanger 70 moves as described below.
Supply to the 1st outer medium of heat-transfer pipe and flow into the liquid dispensing apparatus 72 of being located at topmost in the casing 71 through influent header 4 from inlet pipe arrangement 3.Spread to the surface that each heat-transfer pipe that constitutes heat transfer nest of tubes 5 is listed as the heat-transfer pipe of epimere at liquid dispensing apparatus 72 by the described liquid distributional effects of the form of implementation of aforesaid liquid distributor, formation flows down liquid film 52, on one side with heat-transfer pipe in the 2nd medium carry out heat exchange, one edge heat-transfer pipe group 5 flows down the liquid holdup portion 6 that arrives, afterwards, flow out to outside the heat exchanger from outlet pipe arrangement 7.
At this moment, the 2nd medium that supply in the heat-transfer pipe flow into the 1st header 81 in the heat exchanger 70 from inlet pipe arrangement 80, are assigned in the pipe of each heat-transfer pipe that constitutes the 1st passage 82, flow in pipe, carry out heat exchange simultaneously with along the 1st medium that flow down outside the pipe.The 2nd medium by the 1st passage 82 flow into the 2nd header 83 in each heat-transfer pipe, mix again.At the 2nd header 83, the 2nd media distribution of having mixed is carried out heat exchange in each the heat-transfer pipe pipe that constitutes the 2nd passage 84 with along outer the 1st medium that flow down of pipe, below similarly flow out to outside the heat exchanger from exporting pipe arrangement 90 by the 3rd header the 85, the 3rd passage the 86, the 4th header the 87, the 4th passage the 88, the 5th header 89.
As described above, can not supply with at each heat-transfer pipe total length one place with omitting and form the 1st medium that flow down liquid film 52, increase the area proportion in the whole area of tube surface that flows down liquid film 52 cover parts, improve the performance of heat exchanger.That is, can't help to flow down that liquid film covers and the ratio that can not carry out the part of heat exchange descends,, can realize miniaturization, lightweight, and the cost degradation of heat exchanger so the available heat transfer area that lacks than prior art obtains equal performance.
Because liquid dispensing apparatus can prevent foreign matter such as metallic and stop up the liquid hole of dripping between longer-term, so can obtain the few fallig film heat exchanger of deterioration year in year out, even liquid dispensing apparatus, heat exchanger or with its comprise wherein machine, system is provided with along the axioversion ground of liquid dispensing apparatus and heat transfer nest of tubes, also can distribute the 1st fluid promptly to supply to the heat transfer nest of tubes well, thereby obtain the good fallig film heat exchanger of stability when being obliquely installed.
In this form of implementation, because the secondary distribution at liquid dispensing apparatus is provided with passage with the top of coiling, so, even flow under the overheated or cold excessively state of the vapour pressure of the 1st medium in the relatively hot interchanger, the sharply destabilizing factor that absorbs of evaporation and steam voluntarily that also can get rid of the 1st medium, acquisition can successfully form secondary distribution with fallig film heat exchanger liquid level, that versatility is high on coiling.
In above-mentioned form of implementation, each heat-transfer pipe that constitutes heat transfer nest of tubes 5 is set respectively in parallel to each other, when the section direction in hole 21 is watched under comprising fluid drips, vertically form a plurality of row, and it is consistent with the center line in hole 21 under the fluid drips on top respectively to make the center line of these row promptly be connected to form the straight line 51 of central point of each heat-transfer pipe of these row.Promptly, the multiple row configuration that is formed at the vertical direction in the heat transfer nest of tubes 5 make center line be positioned at all liq drip axial row that hole 21 forms any under, so the 1st medium that drip from liquid dispensing apparatus 72 positively supply to central portion heat-transfer pipe, that watch from the section direction that each heat-transfer pipe that longitudinally is formed in all heat transfer nest of tubes 5 are listed as epimere.
Therefore, can get rid of supply to that section direction end causes from the disengaging of nest of tubes or directly drop to liquid holdup portion 6 etc. and flow down the hindering factor that liquid film forms.
In this form of implementation, along short transverse heat transfer nest of tubes 5 is divided into a plurality of little nest of tubes, portion forms 1-the 4th passage 82,84,86,88 that flows through the 2nd medium in the heat-transfer pipe within it, make above-mentioned the 2nd medium circulation successively from the little nest of tubes of bottom, formation flows down liquid film, carry out heat exchange with the 1st medium that flow towards the bottom from top, thereby can constitute contraflow heat exchanger, realize high-performance, high efficiency.
In addition, can be not yet do not constitute heat transfer nest of tubes 5, cut apart along short transverse with the set of straight tube, but constitute above-mentioned heat transfer nest of tubes 5 by a plurality of horizontal heat transfer parts and the aggregate that carries out the coil the turning part of 180 ° of directions conversion formed along short transverse be located between this heat transfer part, make the 2nd medium that in heat-transfer pipe, flow from the above-mentioned nest of tubes bottom circulation of crawling, at this moment also can obtain same effect.
In this form of implementation, owing to can supply with the 1st medium to all heat transfer nest of tubes that constitute by multiple row by single liquid dispensing apparatus, even so be the occasion of odd number at the columns of heat-transfer pipe, also can not produce the 1st medium unnecessary quantity delivered be assigned to the heat transfer nest of tubes.Therefore, the free degree the during design of fallig film heat exchanger uprises, and opens flat 5-172438 communique and compares with the occasion of the flat 7-4782 communique of Te Kai with being recorded in above-mentioned spy, can realize optimization.
As described above according to this form of implementation, can obtain such fallig film heat exchanger, this fallig film heat exchanger size is little, in light weight, cost is low, performance is high, efficient is high, deterioration is few year in year out, stability is good when being obliquely installed, the versatility height, design freedom is big, can carry out optimization.
Below, with reference to the form of implementation of Figure 12 and table 1 explanation absorption refrigerating machine of the present invention.Absorption refrigerating machine of the present invention is so-called absorption general name, comprises absorption refrigerating machine, absorbs cold warm water machine, the 1st kind of sorption type heat pump (thermal amplifier), the 2nd kind of sorption type heat pump (thermal converter).
This figure is the system diagram of the absorption cold warm water machine of absorption refrigerating machine one form of the present invention, and this expresses the title of the main machine that has used liquid dispensing apparatus and fallig film heat exchanger and the form of the phase transformation that produces outside heat-transfer pipe, form in fallig film heat exchanger and flow down the 1st medium of liquid film and flow through working fluid name in the absorption cold warm water machine of the 2nd medium in the heat-transfer pipe.
Table 1
| The title of main machine | The phase deformation type that heat-transfer pipe is outer | The 1st medium that heat-transfer pipe is outer | The 2nd medium in the heat-transfer pipe |
| Evaporimeter | Produce steam (evaporation) from cooling medium liquid | Cooling medium liquid | Cold water |
| Absorber | Steam absorbs absorbent solution | Absorbent solution (concentrated solution → weak solution) | Cooling water |
| Low-temperature regenerator | Produce steam from absorbent solution | Absorbent solution (weak solution → concentrated solution) | Refrigerant vapor (at in-tube condensation) |
Absorbing cold temperature machine is made of high-temp regenerator 101, low-temperature regenerator 102, condenser 103, evaporimeter 104, absorber 105, low temperature heat exchanger 106, high-temperature heat exchanger 107 and the pipe arrangement class and the pump that connect them.This high-temp regenerator 101 concentrates absorbent solution by the thermal source heating of outside; This low-temperature regenerator 102 forms the liquid film that flows down of absorbent solution outside heat-transfer pipe, the heat energy heating of the refrigerant vapor that is produced by above-mentioned high-temp regenerator 101 concentrates; The refrigerant vapor that these condenser 103 condensations are produced by this low-temperature regenerator 102 and is produced by high-temp regenerator 101 and mixes in the cooling medium liquid of the in-tube condensation of low-temperature regenerator 102; This evaporimeter 104 forms cooling medium liquid outside pipe the liquid film that flows down makes its evaporation, the cold water in the cooling tube; This absorber 105 absorbs the refrigerant vapor that this evaporimeter 104 produces by the liquid film that flows down of absorbent solution, will remain low pressure in the container, promotes evaporation; This low temperature heat exchanger 106 and high-temperature heat exchanger 107 reclaim sensible heat from the absorbent solution that is recycled to absorber 105 by above-mentioned high-temp regenerator 101 and low-temperature regenerator 102.
In this form of implementation, low-temperature regenerator 102, evaporimeter 104, absorber 105 use the formation of liquid dispensing apparatus of the present invention and fallig film heat exchanger relatively.
The following describes the method that in these 3 main machines, is suitable for liquid dispensing apparatus of the present invention and flow liquid membrane type heat exchanger.Here, absorbing cold warm water machine is general double utility type, and as working fluid, making water is refrigerant, uses lithium bromide water solution to be absorbent solution.Absorbing cold warm water machine is illustrated with the situation of carrying out the cold air operation.
The heat exchange media of evaporimeter 104 is cooling medium liquid that flows into from condenser 103 and the cold water that circulates between cold air load system and absorption cold warm water machine.Cooling medium liquid flow down liquid film in order to need to form by gas-liquid interface evaporation, is stored in the bottom of evaporimeter 104 for the moment as the 1st medium of fallig film heat exchanger, is scattered with pump feed fluid distributor 72e by the refrigerant of being located at the evaporimeter bottom.
On the other hand, the 2nd medium that flow through in the heat-transfer pipe are at the cold air load system and absorb the cold water that circulates between the cold warm water machine.The cooling medium liquid formation of supplying with on the heat transfer nest of tubes from liquid dispensing apparatus 72e flows down liquid film, evaporates from the cold water draw heat that flows through in the pipe.By this effect the cold water in the cold air load pipe is cooled off, this Cold water supply to cold air load system, is carried out the cold air operation.Can not evaporate the cooling medium liquid that runs down into container bottom and mix, once more feed fluid distributor 72e with the cooling medium liquid that flows into from condenser 103.
The heat exchange media of absorber 105 cools off cooling water with the absorbability of keeping absorbent solution for the absorbent solution of coming through low temperature heat exchanger 106 circulations from regenerator system with it.Absorbent solution flows down liquid film for the refrigerant vapor that absorbs evaporimeter by gas-liquid interface need form, so, make the 1st fluid feed fluid distributor 72a, and to make the 2nd medium that flow in heat-transfer pipe be cooling water as fallig film heat exchanger.The absorbent solution that runs down into the bottom behind the absorption refrigerant vapor is delivered to regenerator system through low temperature heat exchanger 106 once more by the solution circulation pump 107 that is arranged at absorber 105 bottoms.
The heat exchange matchmaker of low-temperature regenerator 102 is for the absorbent solution that is diverted to the low-temperature regenerator 102 behind high-temp regenerator 101 and the low-temperature regenerator 102 from absorber 105 through low temperature heat exchangers 106 and produce in high-temp regenerator 101 and the refrigerant vapor of condensation in low-temperature regenerator.Absorbent solution flows down liquid film in order to form by gas-liquid interface generation refrigerant vapor, as the 1st fluid feed fluid distributor 72g of fallig film heat exchanger.
On the other hand, refrigerant vapor also is the medium that produce phase transformation in low-temperature regenerator, do not flow down liquid film and form gas-liquid interface naturally yet even do not form by condensation at heat-transfer area in the occasion of condensation, so, when supplying in the heat-transfer pipe as the 2nd medium and behind in-tube condensation, guiding in the condenser 103.The absorbent solution that produces refrigerant vapor and run down into the bottom is circulated again into absorber 104 with the absorbent solution of high-temp regenerator 101.
As described above, in the form of implementation of Figure 12, owing to fallig film heat exchanger is set, so can obtain that size is little, in light weight, cost is low, performance is high, efficient is high, deterioration is few year in year out, stability is good when being obliquely installed, versatility is high, design freedom is big, also can carry out optimized absorption refrigerating machine at the low-temperature regenerator 102, evaporimeter 104, the absorber 105 that absorb cold warm water machine.
In the circulatory system of the refrigerant of absorption refrigerating machine and absorbent solution except that be provided with circulation with pump, also be provided with the magnetic valve that is used for the control of solution internal circulating load and adjustable resistance valve, be used for suitably keeping the fluid key elements such as ball-cock assembly of the solution amount of high-temp regenerator when dispatching from the factory and during maintenance when used flow control valve and open and close valve, operation.When these circulatory system pick-up metal particles or copper coating are peeled off the foreign matter of generation, these foreign matters are by catching as the liquid dispensing apparatus 72e of the evaporimeter 104 of a coolant circulating system part with as liquid dispensing apparatus 72a, the 72g of an absorbent solution circulating system part, the action that can prevent pump problem that these foreign matters cause and various fluid key elements is bad, the obturation of fine channel, obtains the high absorption refrigerating machine of reliability.
As described above, according to the present invention, in liquid dispensing apparatus and fallig film heat exchanger, even heat exchanger body or the device body that comprises this heat exchanger are obliquely installed, or the liquid that distributes is supplied with to cross cold or overheated state, also can obtain good distribution performance, form and to flow down liquid film, in addition, can remove the foreign matter of sneaking in the working fluid well, making year in year out, deterioration diminishes, can freely set the columns of heat-transfer pipe, thereby make the design freedom height, and can low-costly realize above-mentioned advantage.
Low-temperature regenerator by this fallig film heat exchanger being applicable to absorption refrigerating machine, evaporimeter, absorber etc. can be realized miniaturization, lightweight, the cost degradation of absorption refrigerating machine, and can improve reliability.
Claims (16)
1, a kind of liquid dispensing apparatus, the liquid that will be accompanied by phase transformation in heat exchanging process distributes from top and spreads on the heat transfer nest of tubes, it is characterized in that: constitute with dish with pipeline and secondary distribution by primary distribution, this primary distribution with pipeline on the length direction of pipeline, form side by side as liquid outlet and also be used for dispense liquid a plurality of dispensing orifices, this secondary distribution is disposed at primary distribution with the pipeline below with this primary distribution of rim with the length direction of pipeline, corresponding above-mentioned dispensing orifice is divided into a plurality of zones along its length, and under each zone is formed for dripping the fluid drips of aforesaid liquid the hole.
2, liquid dispensing apparatus as claimed in claim 1, it is characterized in that: by constituting from コ font the 1st member that upward opening is installed to the コ of under shed font the 2nd member below, secondary distribution constitutes with the コ character form component of dish by upward opening with pipeline in primary distribution.
3, liquid dispensing apparatus as claimed in claim 1 is characterized in that: dispensing orifice has central point in the position of コ font the 1st member side central authorities that are higher than upward opening.
4, liquid dispensing apparatus as claimed in claim 1 is characterized in that: be formed at the secondary distribution square one-tenth projection from the bottom surface on every side in hole under the fluid drips of dish down.
5, liquid dispensing apparatus as claimed in claim 2 is characterized in that: secondary distribution is divided into a plurality of zones with the long member of box-shaped of the コ font of dish by will being upward opening by demarcation strip and forms.
6, liquid dispensing apparatus as claimed in claim 2 is characterized in that: secondary distribution forms with the box component of the コ font of dish by connecting a plurality of upward openings.
7, liquid dispensing apparatus as claimed in claim 2 is characterized in that: use the length direction side under shed コ font the 2nd member of pipeline to form passage in primary distribution.
8, liquid dispensing apparatus as claimed in claim 7 is characterized in that: passage is formed at the pars intermedia of each dispensing orifice.
9, a kind of fallig film heat exchanger, have heat transfer nest of tubes and liquid dispensing apparatus, this heat transfer nest of tubes carries out heat exchange inside and outside pipe, this liquid dispensing apparatus distributes and the distribution heat exchange media from each the heat-transfer pipe top that constitutes this heat transfer nest of tubes, this heat exchange media is dirty down on one side at above-mentioned heat-transfer pipe outside wall surface formation liquid film in the gravity effect on one side, carries out heat exchange with the heat exchange media that flows through in the pipe; It is characterized in that: the aforesaid liquid distributor is made of with dish with pipeline and secondary distribution primary distribution, this primary distribution with pipeline on pipe lengths, form side by side as liquid outlet and also be used for dispense liquid a plurality of dispensing orifices, this secondary distribution is disposed at primary distribution with the pipeline below with this primary distribution of rim with the length direction of pipeline, corresponding above-mentioned dispensing orifice is divided into a plurality of zones along its length, and under each zone is formed for dripping the fluid drips of aforesaid liquid the hole, each heat-transfer pipe that constitutes above-mentioned heat transfer nest of tubes is parallel with hole under the fluid drips that is formed at the aforesaid liquid distributor.
10, fallig film heat exchanger as claimed in claim 9 is characterized in that: the columns that makes the heat-transfer pipe that constitutes the heat transfer nest of tubes is in 90～100% scope of the columns that forms hole under the fluid drips.
11, fallig film heat exchanger as claimed in claim 9 is characterized in that: along short transverse the heat transfer nest of tubes is divided into multigroup, the heat exchange media that flows through in the heat-transfer pipe is flowed successively from the group of below.
12, a kind of fallig film heat exchanger, have heat transfer nest of tubes and liquid dispensing apparatus, this heat transfer nest of tubes carries out heat exchange inside and outside pipe, this liquid dispensing apparatus distributes and the distribution heat exchange media from each the heat-transfer pipe top that constitutes this heat transfer nest of tubes, this heat exchange media is dirty down on one side at above-mentioned heat-transfer pipe outside wall surface formation liquid film in the gravity effect on one side, carries out heat exchange with the heat exchange media that flows through in the pipe; It is characterized in that: the aforesaid liquid distributor is made of with dish with pipeline and secondary distribution primary distribution, this primary distribution with pipeline on pipe lengths, form side by side as liquid outlet and also be used for dispense liquid a plurality of dispensing orifices, this secondary distribution is disposed at primary distribution with the pipeline below with this primary distribution of rim with the length direction of pipeline, corresponding above-mentioned dispensing orifice is divided into a plurality of zones along its length, and under each zone is formed for dripping the fluid drips of aforesaid liquid the hole, each heat-transfer pipe that constitutes above-mentioned heat transfer nest of tubes is parallel with hole under the fluid drips that is formed at the aforesaid liquid distributor, the columns of the heat-transfer pipe of formation heat transfer nest of tubes is in the scope that forms the 90-100% of the columns in hole under the fluid drips, above-mentioned heat transfer nest of tubes is divided into multigroup along short transverse, and the heat exchange media that flows through in the heat-transfer pipe flows successively from the group of below.
13, a kind of absorption refrigerating machine, for single-action is used, have absorption refrigerating machine, evaporimeter, absorber, regeneration organ pipe, liquid dispensing apparatus and condenser, this liquid dispensing apparatus is assembled into these evaporimeters, absorber, regenerator, joins from the heat transfer nest of tubes top of carrying out heat exchange inside and outside pipe and scatters heat exchange media; It is characterized in that: fallig film heat exchanger is assembled into above-mentioned evaporimeter at least, absorber, in the regenerator any one, in this fallig film heat exchanger, the aforesaid liquid distributor is made of with dish with pipeline and secondary distribution primary distribution, this primary distribution with pipeline on pipe lengths, form side by side as liquid outlet and also be used for dispense liquid a plurality of dispensing orifices, this secondary distribution is disposed at primary distribution with the pipeline below with this primary distribution of rim with the length direction of pipeline, corresponding above-mentioned dispensing orifice is divided into a plurality of zones along its length, and under each zone is formed for dripping the fluid drips of aforesaid liquid the hole, each heat-transfer pipe that constitutes above-mentioned heat transfer nest of tubes is parallel with hole under the fluid drips that is formed at the aforesaid liquid distributor.
14, a kind of absorption refrigerating machine, be multiple effectiveness, have evaporimeter, absorber, high-temp regenerator, low-temperature regenerator, liquid dispensing apparatus and condenser, this liquid dispensing apparatus is assembled into these evaporimeters, absorber, low-temperature regenerator, joins from the heat transfer nest of tubes top of carrying out heat exchange inside and outside pipe and scatters heat exchange media; It is characterized in that: fallig film heat exchanger is assembled into above-mentioned evaporimeter at least, absorber, in the low-temperature regenerator any one, in this fallig film heat exchanger, the aforesaid liquid distributor is made of with dish with pipeline and secondary distribution primary distribution, this primary distribution with pipeline on pipe lengths, form side by side as liquid outlet and also be used for dispense liquid a plurality of dispensing orifices, this secondary distribution is disposed at primary distribution with the pipeline below with this primary distribution of rim with the length direction of pipeline, corresponding above-mentioned dispensing orifice is divided into a plurality of zones along its length, and under each zone is formed for dripping the fluid drips of aforesaid liquid the hole, each heat-transfer pipe that constitutes above-mentioned heat transfer nest of tubes is parallel with hole under the fluid drips that is formed at the aforesaid liquid distributor.
15, a kind of absorption refrigerating machine, be multiple effectiveness, have evaporimeter, absorber, high-temp regenerator, low-temperature regenerator, liquid dispensing apparatus and condenser, this liquid dispensing apparatus is assembled into these evaporimeters, absorber, low-temperature regenerator, joins from the heat transfer nest of tubes top of carrying out heat exchange inside and outside pipe and scatters heat exchange media; It is characterized in that: fallig film heat exchanger is assembled into above-mentioned evaporimeter at least, absorber, in the low-temperature regenerator any one, in this fallig film heat exchanger, the aforesaid liquid distributor is made of with dish with pipeline and secondary distribution primary distribution, this primary distribution with pipeline on pipe lengths, form side by side as liquid outlet and also be used for dispense liquid a plurality of dispensing orifices, this secondary distribution is disposed at primary distribution with the pipeline below with this primary distribution of rim with the length direction of pipeline, corresponding above-mentioned dispensing orifice is divided into a plurality of zones along its length, and under each zone is formed for dripping the fluid drips of aforesaid liquid the hole, each heat-transfer pipe that constitutes above-mentioned heat transfer nest of tubes is parallel with hole under the fluid drips that is formed at the aforesaid liquid distributor.
16, a kind of absorption refrigerating machine, be multiple effectiveness, have evaporimeter, absorber, high-temp regenerator, low-temperature regenerator, liquid dispensing apparatus and condenser, this liquid dispensing apparatus is assembled into these evaporimeters, absorber, low-temperature regenerator, joins from the heat transfer nest of tubes top of carrying out heat exchange inside and outside pipe and scatters heat exchange media; It is characterized in that: fallig film heat exchanger is assembled into above-mentioned evaporimeter at least, absorber, in the low-temperature regenerator any one, in this fallig film heat exchanger, the aforesaid liquid distributor is made of with dish with pipeline and secondary distribution primary distribution, this primary distribution with pipeline on pipe lengths, form side by side as liquid outlet and also be used for dispense liquid a plurality of dispensing orifices, this secondary distribution is disposed at primary distribution with the pipeline below with this primary distribution of rim with the length direction of pipeline, corresponding above-mentioned dispensing orifice is divided into a plurality of zones along its length, and under each zone is formed for dripping the fluid drips of aforesaid liquid the hole, each heat-transfer pipe that constitutes above-mentioned heat transfer nest of tubes is parallel with hole under the fluid drips that is formed at the aforesaid liquid distributor, the columns of heat-transfer pipe that constitutes the heat transfer nest of tubes is in 90～100% scope of the columns that forms hole under the fluid drips, above-mentioned heat transfer nest of tubes is divided into multigroup along short transverse, and the heat exchange media that flows through in the heat-transfer pipe flows successively from the group of below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971820430A CN1139769C (en) | 1997-03-17 | 1997-03-17 | Liquid distributor, fallig film heat exchanger and absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971820430A CN1139769C (en) | 1997-03-17 | 1997-03-17 | Liquid distributor, fallig film heat exchanger and absorption refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1249032A true CN1249032A (en) | 2000-03-29 |
| CN1139769C CN1139769C (en) | 2004-02-25 |
Family
ID=5178263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB971820430A Expired - Lifetime CN1139769C (en) | 1997-03-17 | 1997-03-17 | Liquid distributor, fallig film heat exchanger and absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1139769C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102213508A (en) * | 2010-04-08 | 2011-10-12 | Lg电子株式会社 | Liquid dispensing device and absorption type cold and hot water machine equipped with liquid dispensing device |
| CN104272056A (en) * | 2012-04-23 | 2015-01-07 | 大金应用美国股份有限公司 | Heat exchanger |
| CN106369888A (en) * | 2016-11-14 | 2017-02-01 | 格力电器（芜湖）有限公司 | Falling-film evaporator and refrigerant gas-liquid separation method thereof |
| WO2017088768A1 (en) * | 2015-11-26 | 2017-06-01 | 四川捷元科技有限公司 | Absorption type refrigerating unit inclined flow guide condenser, refrigerating unit and refrigerating matrix |
| WO2017155782A1 (en) * | 2016-03-07 | 2017-09-14 | Daikin Applied Americas Inc. | Heat exchanger |
| CN110398087A (en) * | 2018-04-24 | 2019-11-01 | 松下知识产权经营株式会社 | Absorption Refrigerator |
| CN111213022A (en) * | 2017-10-20 | 2020-05-29 | 江森自控科技公司 | Falling film heat exchanger |
| JP2021175922A (en) * | 2020-05-01 | 2021-11-04 | 三菱重工サーマルシステムズ株式会社 | Evaporator |
-
1997
- 1997-03-17 CN CNB971820430A patent/CN1139769C/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213508A (en) * | 2010-04-08 | 2011-10-12 | Lg电子株式会社 | Liquid dispensing device and absorption type cold and hot water machine equipped with liquid dispensing device |
| CN102213508B (en) * | 2010-04-08 | 2014-11-26 | Lg电子株式会社 | Liquid dispensing device and absorption type cold and hot water machine equipped with liquid dispensing device |
| CN104272056A (en) * | 2012-04-23 | 2015-01-07 | 大金应用美国股份有限公司 | Heat exchanger |
| US9513039B2 (en) | 2012-04-23 | 2016-12-06 | Daikin Applied Americas Inc. | Heat exchanger |
| CN104272056B (en) * | 2012-04-23 | 2017-09-01 | 大金应用美国股份有限公司 | Heat exchanger |
| CN106802031A (en) * | 2015-11-26 | 2017-06-06 | 四川捷元科技有限公司 | Absorption refrigeration unit inclined-plane water conservancy diversion condenser |
| WO2017088768A1 (en) * | 2015-11-26 | 2017-06-01 | 四川捷元科技有限公司 | Absorption type refrigerating unit inclined flow guide condenser, refrigerating unit and refrigerating matrix |
| CN106802031B (en) * | 2015-11-26 | 2018-12-25 | 四川捷元科技有限公司 | Absorption refrigeration unit inclined-plane water conservancy diversion condenser |
| WO2017155782A1 (en) * | 2016-03-07 | 2017-09-14 | Daikin Applied Americas Inc. | Heat exchanger |
| US10746441B2 (en) | 2016-03-07 | 2020-08-18 | Daikin Applied Americas Inc. | Heat exchanger |
| CN106369888A (en) * | 2016-11-14 | 2017-02-01 | 格力电器（芜湖）有限公司 | Falling-film evaporator and refrigerant gas-liquid separation method thereof |
| CN111213022A (en) * | 2017-10-20 | 2020-05-29 | 江森自控科技公司 | Falling film heat exchanger |
| CN110398087A (en) * | 2018-04-24 | 2019-11-01 | 松下知识产权经营株式会社 | Absorption Refrigerator |
| JP2021175922A (en) * | 2020-05-01 | 2021-11-04 | 三菱重工サーマルシステムズ株式会社 | Evaporator |
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| CN1139769C (en) | 2004-02-25 |
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