CN208398432U - Liquid distributor, falling film evaporator and air-conditioning - Google Patents
Liquid distributor, falling film evaporator and air-conditioning Download PDFInfo
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- CN208398432U CN208398432U CN201821074341.3U CN201821074341U CN208398432U CN 208398432 U CN208398432 U CN 208398432U CN 201821074341 U CN201821074341 U CN 201821074341U CN 208398432 U CN208398432 U CN 208398432U
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Abstract
The utility model relates to a kind of liquid distributor, falling film evaporator and air-conditionings.Liquid distributor includes fluid-uniformly mixing groove and gear liquid bath.The bottom wall of fluid-uniformly mixing groove offers multiple cloth fluid through-holes, and the headspace of fluid-uniformly mixing groove is connected to the exhaust passage of falling film evaporator.Gear liquid bath is set to above the bottom wall of fluid-uniformly mixing groove, keeping off liquid bath fluid-uniformly mixing groove gear liquid bath includes opposite two sidewalls, opposite two sidewalls offer multiple overflow through-holes respectively on gear liquid bath, and the headspace for keeping off liquid bath is connected to the exhaust passage of falling film evaporator, and refrigerant can be injected by keeping off in liquid bath.Gas-liquid mixed refrigerant can carry out a gas-liquid separation and secondary gas-liquid separation during entering gear liquid bath and fluid-uniformly mixing groove respectively, effectively reduce the inclusion content of the gaseous coolant from the liquid refrigerants that fluid-uniformly mixing groove bottom wall flows out, and then ensure that liquid refrigerants forms uniform and stable liquid film in heat exchange pipe surface, improve the heat exchange efficiency of falling film evaporator.
Description
Technical field
The utility model relates to technical field of heat exchange equipment, more particularly to a kind of liquid distributor, falling film evaporator and sky
It adjusts.
Background technique
In the course of work of falling film evaporator, the refrigerant of gas-liquid mixture phase enters the cloth liquid in falling film evaporator from top
Device, refrigerant drips after liquid distributor is distributed and flowed to be poured on heat exchanger tube, and cooling capacity is passed to user.Liquid refrigerants is evaporated itself
Afterwards, into the air entry of compressor, condenser is discharged into after being compressed.Liquid refrigerants forms uniform and stable liquid film and is covered on
Heat exchange pipe surface is the necessary condition for guaranteeing falling film evaporator and sufficiently exchanging heat.Gas-liquid mixture phase is cold in traditional falling film evaporator
Matchmaker is not readily separated, and liquid refrigerants can not form uniform and stable liquid film in heat exchange pipe surface under the interference of gaseous coolant, simultaneously
Gaseous coolant can be accelerated to flow through the speed of heat exchanger tube refrigerant surface, greatly reduce the heat exchange efficiency of falling film evaporator.
Utility model content
Based on this, it is necessary to be changed caused by for being not readily separated in traditional falling film evaporator because of the refrigerant of gas-liquid mixture phase
The low problem of the thermal efficiency provides a kind of refrigerant that can efficiently separate gas-liquid mixture phase and then the cloth liquid for improving heat exchange efficiency
Device, falling film evaporator and air-conditioning.
A kind of liquid distributor, comprising:
Fluid-uniformly mixing groove, the bottom wall of the fluid-uniformly mixing groove offer multiple cloth fluid through-holes, the headspace and falling liquid film of the fluid-uniformly mixing groove
The exhaust passage of evaporator is connected to；
Liquid bath is kept off, is set to above the bottom wall of the fluid-uniformly mixing groove, keeps off gear liquid bath described in liquid bath fluid-uniformly mixing groove includes opposite two
Side wall, opposite two sidewalls offer multiple overflow through-holes, the headspace of the gear liquid bath and row respectively on the gear liquid bath
Gas channel is connected to, and can inject refrigerant in the gear liquid bath.
The liquid distributor further includes equal liquid pipe in one of the embodiments, and the equal liquid pipe is set to the gear liquid bath
It is interior, multiple equal fluid through-holes are offered on the tube wall of the equal liquid pipe, the equal liquid pipe can be connected to refrigerant inlet.
The liquid distributor further includes gas block panel in one of the embodiments, and gas block panel described in gas block panel covers at described
The top of fluid-uniformly mixing groove, the gear liquid bath and the equal liquid pipe；The top of the fluid-uniformly mixing groove and the gear liquid bath is respectively to open
Mouthful, and the top of the fluid-uniformly mixing groove and the top of the gear liquid bath are arranged with the inner wall interval of the gas block panel respectively；It is described
Keep off the gap between the gap between liquid bath and the gas block panel, the fluid-uniformly mixing groove and the gas block panel and the gas block panel
A part of inner wall formation exhaust passage.
The liquid distributor further includes two end-stopping plates in one of the embodiments, the fluid-uniformly mixing groove, the gear liquid bath,
The equal liquid pipe and gas block panel horizontal extension direction having the same, the fluid-uniformly mixing groove, the gear liquid bath, the equal liquid
Pipe and the gas block panel are respectively open along the both ends in horizontal extension direction, and two end-stopping plates close off the equal liquid
The both ends of slot, the gear liquid bath, the equal liquid pipe and the gas block panel along horizontal extension direction.
The gas block panel also has side plate, the side plate along the two sides in horizontal extension direction in one of the embodiments,
Bottom end be lower than the fluid-uniformly mixing groove bottom end.
The top for keeping off gear liquid bath two sidewalls described in liquid bath in one of the embodiments, is higher than the center of the equal liquid pipe,
The equal fluid through-hole is opened in the tube wall of the equal liquid pipe central horizontal face or less part.
The internal diameter of equal fluid through-hole is more than or equal to the internal diameter of the overflow through-hole, the overflow in one of the embodiments,
The internal diameter of through-hole is more than or equal to the internal diameter of the cloth fluid through-hole.
The liquid distributor further includes inlet tube in one of the embodiments, and the both ends of the inlet tube are respectively communicated with institute
State equal liquid pipe and refrigerant inlet.
A kind of falling film evaporator, including shell, liquid distributor and pipe heat exchanger, the liquid distributor are that above scheme is any
Liquid distributor described in；The liquid distributor is set to the intracorporal top of the shell, and the pipe heat exchanger is set to the cloth liquid
The lower section of device；There is airflow clearance between the gas block panel and the shell.
The gas block panel (240) also has side plate along the two sides in horizontal extension direction in one of the embodiments,
(241), the bottom end of the side plate (241) is lower than the bottom end of the fluid-uniformly mixing groove (210), and the bottom end of the side plate (241) extends to
The second comb of falling liquid film area bottom is between the 5th comb of bottom in the pipe heat exchanger (300).
The falling film evaporator further includes escape pipe in one of the embodiments, and the escape pipe is set to the shell
The top of body, one end of the escape pipe are connected to the enclosure interior, and the other end of the escape pipe can be with air-conditioning equipment
Air-breathing circuit communication.
A kind of air-conditioning, including interconnected evaporator and condensation structure, the evaporator is drop described in above scheme
Film evaporator.
Above-mentioned liquid distributor, falling film evaporator and air-conditioning, overflow through-hole is provided with the gear liquid bath in two lateral walls can
Buffer function is played to the gas-liquid mixed refrigerant in injection gear liquid bath.With the continuous injection of gas-liquid mixed refrigerant, injection gear liquid
Gas-liquid mixed refrigerant in slot accumulates in the bottom of gear liquid bath first, and gaseous coolant is during injection and accumulation with bubble
Form overflow, liquid refrigerants then accumulates in gear liquid bath, and the gaseous coolant that is mingled in liquid refrigerants is reduced, and it is mixed to realize gas-liquid
Close a gas-liquid separation of refrigerant.The gaseous coolant overflowed in gas-liquid separation overshoot enters from the headspace of gear liquid bath
The exhaust passage of falling film evaporator is discharged.When the liquid refrigerants for being mingled with a small amount of gaseous coolant accumulates to the height of overflow through-hole,
Liquid refrigerants flows into fluid-uniformly mixing groove from the overflow through-hole on gear liquid bath side wall.Liquid refrigerants flow to fluid-uniformly mixing groove by the side wall of gear liquid bath
It is impacted in the process, the gaseous coolant being mixed in liquid refrigerants further overflows, and realizes the secondary of gas-liquid mixed refrigerant
Gas-liquid separation.The gaseous coolant overflowed during secondary gas-liquid separation enters falling film evaporator from the headspace of fluid-uniformly mixing groove
Exhaust passage discharge.Above-mentioned gear liquid bath and fluid-uniformly mixing groove cooperation realize a gas-liquid separation and secondary gas-liquid separation, effectively drop
The inclusion content of the low gaseous coolant from the liquid refrigerants that fluid-uniformly mixing groove bottom wall flows out, and then ensure that liquid refrigerants in heat exchanger tube table
Face forms uniform and stable liquid film, and eliminates the shadow of average speed when gaseous coolant flows through heat exchanger tube surface to liquid refrigerants
It rings, improves the heat exchange efficiency of falling film evaporator.The gaseous coolant of spilling enters the exhaust passage of falling film evaporator, reduces gas
The carrying amount of state refrigerant liquid refrigerants liquid pearl in discharge process, and then absorbing gas belt liquid is reduced to air-conditioning heat exchange cycle system
It influences, ensure that the normal operation of air-conditioning system.
Detailed description of the invention
Fig. 1 is the liquid distributor schematic perspective view that an embodiment of the present invention provides；
Fig. 2 is the fluid-uniformly mixing groove schematic perspective view that an embodiment of the present invention provides；
Fig. 3 is the gear liquid bath schematic perspective view that an embodiment of the present invention provides；
Fig. 4 is the equal liquid pipe schematic perspective view that an embodiment of the present invention provides；
Fig. 5 is Section A-A enlarged structure schematic diagram in Fig. 4；
Fig. 6 is the liquid distributor schematic perspective view that another embodiment of the utility model provides；
Fig. 7 is the falling film evaporator schematic perspective view that an embodiment of the present invention provides；
Fig. 8 is the falling film evaporator schematic view of the front view that an embodiment of the present invention provides；
Fig. 9 is section B-B structural schematic diagram in Fig. 8；
Figure 10 is D-D cross section structure schematic diagram in Fig. 8.
Wherein:
10- falling film evaporator
100- shell
200- liquid distributor
210- fluid-uniformly mixing groove
211- cloth fluid through-hole
220- keeps off liquid bath
221- overflow through-hole
The equal liquid pipe of 230-
The equal fluid through-hole of 231-
240- gas block panel
241- side plate
250- end-stopping plate
260- inlet tube
300- pipe heat exchanger
310- heat exchanger tube
400- escape pipe
500- exhaust passage
The internal diameter of the equal fluid through-hole of a-
The internal diameter of b- overflow through-hole
The internal diameter of c- cloth fluid through-hole
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, by the following examples, it and ties
Attached drawing is closed, a kind of liquid distributor, falling film evaporator and air-conditioning of the utility model are further elaborated.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper",
There is no intermediary elements.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement are
For illustrative purposes.Various difference objects are in the ratio drafting convenient for enumerating explanation in embodiment attached drawing, rather than press practical group
The ratio of part is drawn.
With the development of air conditioner industry, flooded type evaporator structure optimization has tended towards stability, and each air conditioner industry all gradually will
Structure innovation turns to downward film evaporator.The principal element for influencing downward film evaporator heat exchange efficiency is cold medium flux, liquid distributor
Structure, heat exchanger tube tube bank arrangement, gas outlet absorbing gas belt liquid etc., wherein being again most with the influence degree of liquid distributor.
Liquid distributor includes fountain and dripping type, and fountain liquid distributor in the ideal situation can spray refrigerant liquid at liquid
It is covered on heat exchange pipe external surface after pearl even smaller drop, drop and liquid pearl carry out connection accumulation, are formed continuous and uniform
Liquid film carry out heat exchange with heat exchanger tube and exchange.But pressure and flow velocity are difficult to control during actually spraying, and can not determine whether
Refrigerant is evenly arranged in heat exchange pipe surface, and easy to carry refrigerant drop small in size after refrigerant evaporation gasification, is caused serious
Air-breathing solution dehumidification while migration.Dripping type liquid distributor is to lean on refrigerant self gravitation effect and Viscosity Properties, and formed with perforated plate construction
Refrigerant fluid column drops on heat exchanger tube, forms uniform and thin liquid film, carries out heat exchange with heat exchanger tube and exchange.Since refrigerant enters steaming
It is gas-fluid two-phase mixture when sending out device, gas phase flow velocity influences the mean flow rate of two-phase refrigerant, largely influences interior liquid
Refrigerant state, to influence cloth liquid effect.
Liquid distributor structure directly affects falling film evaporator refrigerant liquid distribution and quality of forming film, and refrigerant liquid film uniformity coefficient
Directly affect heat exchange efficiency.Therefore, optimizing to liquid distributor structure is the effective means for improving falling film evaporator performance.For
For dripping type liquid distributor, the refrigerant gas-liquid separation of liquid distributor will be entered into most air conditioner industry focus of attention.
As shown in Fig. 1-3 and Figure 10, the utility model provides a kind of liquid distributor 200, including fluid-uniformly mixing groove 210 and gear liquid bath
220.The bottom wall of fluid-uniformly mixing groove 210 offers multiple cloth fluid through-holes 211, implies that the bottom wall of fluid-uniformly mixing groove 210 is porous plate.Fluid-uniformly mixing groove
210 headspace is connected to the exhaust passage 500 of falling film evaporator 10, and exhaust passage 500 is as shown by the arrows in Figure 10.Keep off liquid
Slot 220 is set in fluid-uniformly mixing groove 210, and the bottom wall interval of the bottom wall and fluid-uniformly mixing groove 210 that keep off liquid bath 220 is arranged, and gear liquid bath 220 includes
Opposite two sidewalls keep off two sidewalls opposite on liquid bath 220 and offer multiple overflow through-holes 221 respectively, keep off the top of liquid bath 220
Space is connected to the exhaust passage 500 of falling film evaporator 10, and refrigerant can be injected by keeping off in liquid bath 220.
Above-mentioned liquid distributor 200, overflow through-hole 221, which is provided with the gear liquid bath 220 in two lateral walls, to keep off liquid to injection
Gas-liquid mixed refrigerant in slot 220 plays buffer function.With the continuous injection of gas-liquid mixed refrigerant, injection is kept off in liquid bath 220
Gas-liquid mixed refrigerant accumulate in first gear liquid bath 220 bottom, gaseous coolant is during injection and accumulation with bubble
Form overflow, liquid refrigerants then accumulates in gear liquid bath 220, and the gaseous coolant that is mingled in liquid refrigerants is reduced, and realizes gas
Gas-liquid separation of liquid mixing refrigerant.The gaseous coolant that overflows is from the top of gear liquid bath 220 in gas-liquid separation overshoot
The exhaust passage 500 that space enters falling film evaporator 10 is discharged.When the liquid refrigerants for being mingled with a small amount of gaseous coolant accumulates to overflow
When the height of through-hole 221, liquid refrigerants flows into fluid-uniformly mixing groove 210 from the overflow through-hole 221 on gear 220 side wall of liquid bath.Liquid refrigerants
It is impacted during flowing to fluid-uniformly mixing groove 210 by the side wall of gear liquid bath 220, is mixed in gaseous coolant in liquid refrigerants into one
Step is overflowed, and the secondary gas-liquid separation of gas-liquid mixed refrigerant is realized.The gaseous coolant overflowed during secondary gas-liquid separation from
The exhaust passage 500 that the headspace of fluid-uniformly mixing groove 210 enters falling film evaporator 10 is discharged.
Above-mentioned gear liquid bath 220 realizes a gas-liquid separation and secondary gas-liquid separation with the cooperation of fluid-uniformly mixing groove 210, effectively drops
The inclusion content of the low gaseous coolant from the liquid refrigerants that 210 bottom wall of fluid-uniformly mixing groove flows out, and then ensure that liquid refrigerants is exchanging heat
310 surface of pipe forms uniform and stable liquid film, and eliminates when gaseous coolant flows through 310 surface of heat exchanger tube to liquid refrigerants and put down
The influence of equal speed, improves the heat exchange efficiency of falling film evaporator 10.The gaseous coolant of spilling enters the row of falling film evaporator 10
Gas channel 500, reduces the carrying amount of gaseous coolant liquid refrigerants liquid pearl in discharge process, and then reduces absorbing gas belt liquid pair
The influence of air-conditioning heat exchange cycle system, ensure that the normal operation of air-conditioning system.
As shown in Fig. 1 and Fig. 4, in an embodiment of the utility model, liquid distributor 200 further includes equal liquid pipe 230, equal liquid pipe
230 are set in gear liquid bath 220, multiple equal fluid through-holes 231 are offered on the tube wall of equal liquid pipe 230, equal liquid pipe 230 can be with drop
The refrigerant inlet of film evaporator 10 is connected to.Equal liquid pipe 230 can by inject the gas-liquid mixed refrigerant of equal liquid pipe 230 along itself
Extending direction is allocated.After gas-liquid mixed refrigerant enters in equal liquid pipe 230, by the equal liquid opened up on the tube wall of equal liquid pipe 230
Through-hole 231 flows out in gear liquid bath 220.Gas-liquid mixed refrigerant by the tube wall of equal liquid pipe 230 flow to gear liquid bath 220 during by
To impact, gaseous coolant overflows, this process is a kind of implementation of gas-liquid separation of gas-liquid mixed refrigerant.Optionally,
Setting is abutted or is spaced between the bottom of liquid pipe 230 and the bottom wall of gear liquid bath 220.In the present embodiment, the bottom of equal liquid pipe 230
It is spaced and is arranged between portion and the bottom wall for keeping off liquid bath 220, the path length that gas-liquid mixed refrigerant flow to gear 220 process of liquid bath can be increased
Degree and impact degree, in order to more gaseous coolants spilling.The gaseous coolant of spilling from gear liquid bath 220 headspace into
The exhaust passage 500 for entering falling film evaporator 10 is discharged.
Further, as shown in Figures 4 and 5, the top for keeping off liquid bath 220 is opening, and equal liquid pipe 230 is round tube.Keep off liquid bath
The top of 220 two sidewalls is higher than the center of equal liquid pipe 230, and equal fluid through-hole 231 is opened in equal 230 central horizontal face of liquid pipe or less
Partial tube wall, even if under biggish pressure, liquid refrigerants is also only by 231 emission direction of equal fluid through-hole of equal liquid pipe 230
It sprays vertically downward, ejection or horizontal ejection diagonally downward, spray when liquid refrigerants can be effectively prevent to flow out from equal liquid pipe 230
It splashes to the region other than gear liquid bath 220.As a kind of achievable mode, in the section of equal liquid pipe 230, the equal liquid of top is logical
The line of 230 kernel of section of the center in hole 231 and equal liquid pipe and the angle across the vertical line of equal 230 kernel of section of liquid pipe
Less than or equal to 90 °.In the present embodiment, as shown in figure 5, the circumferencial direction along equal 230 section of liquid pipe offers the equal fluid through-hole of 7 column
231, extending direction array of the equal fluid through-hole 231 of each column respectively along equal liquid pipe 230 opens up.The center of the equal fluid through-hole 231 of top
Angle with the line of equal 230 kernel of section of liquid pipe and across the vertical line of equal 230 kernel of section of liquid pipe is equal to 90 °, meaning
I.e. the center of the equal fluid through-hole 231 of top is located at equal 230 central horizontal face of liquid pipe.
In an embodiment of the utility model, as shown in figs 6-8, liquid distributor 200 further includes inlet tube 260, inlet tube 260
Both ends be respectively communicated with the refrigerant inlet of equal liquid pipe 230 and falling film evaporator 10, equal liquid pipe 230 can pass through inlet tube 260
It is connected to the refrigerant inlet of falling film evaporator 10.It optionally, is dismountable fixation between inlet tube 260 and equal liquid pipe 230
Connection non-removable is fixedly connected.As a kind of achievable mode, the tube wall top of equal liquid pipe 230 offer with into
The feed liquor through-hole that liquid pipe 260 is adapted to, the feed liquor through-hole of equal 230 tube wall top of liquid pipe, and feed liquor are inserted into one end of inlet tube 260
It is attached in a welding manner between pipe 260 and liquid pipe 230 and realizes sealing.As a kind of achievable mode, equal liquid
The tube wall top of pipe 230 offers the internal thread through hole being adapted to inlet tube 260, and inlet tube 260 is revolved with externally threaded one end
Enter the internal thread through hole of equal 230 tube wall top of liquid pipe, is carried out threadably between inlet tube 260 and liquid pipe 230
It connects and realizes sealing.
In an embodiment of the utility model, as shown in Fig. 6 and Figure 10, liquid distributor 200 further includes gas block panel 240, keeps off gas
The bottom end of plate 240 is opening, and gas block panel 240 covers at the top of fluid-uniformly mixing groove 210, gear liquid bath 220 and liquid pipe 230.Equal liquid
Slot 210 and keep off liquid bath 220 top be respectively be open, and the top of fluid-uniformly mixing groove 210 and keep off liquid bath 220 top respectively with
The inner wall interval of gas block panel 240 is arranged.Keep off gap, fluid-uniformly mixing groove 210 and gas block panel 240 between liquid bath 220 and gas block panel 240 it
Between gap and gas block panel 240 inner wall formed falling film evaporator 10 in exhaust passage 500 a part.240 energy of gas block panel
The gaseous coolant overflowed during a gas-liquid separation and secondary gas-liquid separation is enough guided to flow side by side according to exhaust passage 500
Out.The gaseous coolant of spilling enters the exhaust passage 500 of falling film evaporator 10, reduces gaseous coolant liquid in discharge process
The carrying amount of cooling medium liquid pearl, and then influence of the absorbing gas belt liquid to air-conditioning heat exchange cycle system is reduced, it ensure that air-conditioning system
It operates normally.
Optionally, pass through common support knot between fluid-uniformly mixing groove 210, gear liquid bath 220, equal liquid pipe 230 and gas block panel 240
Structure is supported connection, or realizes above-mentioned relative positional relationship respectively by individual support construction.In the utility model one
In embodiment, in Fig. 1, Fig. 9 and Figure 10, liquid distributor 200 further includes two end-stopping plates 250, fluid-uniformly mixing groove 210, gear liquid bath 220,
Equal liquid pipe 230 and the horizontal extension direction having the same of gas block panel 240, fluid-uniformly mixing groove 210, gear liquid bath 220, equal liquid pipe 230 with
And gas block panel 240 is respectively to be open along the both ends in horizontal extension direction, two shutters close off fluid-uniformly mixing groove 210, gear liquid bath
220, the both ends of equal liquid pipe 230 and gas block panel 240 along horizontal extension direction.End-stopping plate 250 can play fixed support simultaneously
And closing fluid-uniformly mixing groove 210, the effect for keeping off liquid bath 220,230 horizontal extension direction both ends of equal liquid pipe.Further, end-stopping plate 250
Fluid-uniformly mixing groove 210, gear liquid bath 220, equal liquid pipe 230 and gas block panel 240 are closed in a manner of being fully welded welding along horizontal extension direction
Both ends.
In the above-described embodiments, fluid-uniformly mixing groove 210, gear liquid bath 220 are punching structure part, and the plate being sized passes through curved
Folding obtains the fluid-uniformly mixing groove 210 for having side wall along horizontal extension direction both ends open, two sides or gear liquid bath 220.In fluid-uniformly mixing groove 210
Bottom wall stamps out the cloth fluid through-hole 211 of array arrangement, stamps out the overflow through-hole of array arrangement in the two sidewalls of gear liquid bath 220
221.Stamp out on the basis of original tube top feed liquor through-hole and positioned at lower part equal fluid through-hole 231 to obtain this reality
Apply the equal liquid pipe 230 in example.Inlet tube 260 is common round tube, is connected through a screw thread when inlet tube 260 with equal liquid pipe 230
When mode is connected and sealed, external threads are processed in one end of inlet tube 260 and go out adaptation in the inwall processing of feed liquor through-hole
Internal screw thread.
In an embodiment of the utility model, as shown in Fig. 6 and Figure 10, two sides of the gas block panel 240 along horizontal extension direction
Also there is side plate 241, the bottom end of side plate 241 is lower than the bottom end of fluid-uniformly mixing groove 210, and the bottom end of side plate 241 extends to pipe heat exchanger
The second comb of falling liquid film area bottom is between the 5th comb of bottom in 300, wherein " the second comb of falling liquid film area bottom to the 5th row of bottom
Pipe " refer to " since falling liquid film area most descend comb up number the second comb to the 5th comb ".Side plate 241 can be in certain journey
Increase the length of exhaust passage 500, the gaseous coolant easy to carry for having a small amount of liquid refrigerants liquid pearl and liquid refrigerants liquid pearl on degree
Separation, is further reduced the carrying amount of gaseous coolant liquid refrigerants liquid pearl in discharge process.
In an embodiment of the utility model, as in Figure 3-5, the internal diameter a of equal fluid through-hole 231 is more than or equal to overflow through-hole
221 internal diameter b, the internal diameter b of overflow through-hole 221 are more than or equal to the internal diameter c, i.e. a >=b >=c of cloth fluid through-hole 211.Cloth fluid through-hole
211, overflow through-hole 221, equal fluid through-hole 231 aperture be sequentially reduced, liquid refrigerants by repeatedly stop with buffering after carry out
Cloth liquid, to guarantee that liquid coolant flow velocity steadily declines.
The utility model also provides a kind of falling film evaporator 10, and as is seen in figs 7-10, falling film evaporator 10 includes shell
100, liquid distributor 200 and pipe heat exchanger 300, liquid distributor 200 are the described in any item liquid distributors 200 of above scheme.Cloth liquid
Device 200 is set to the top in shell 100, and pipe heat exchanger 300 is set to the bottom of liquid distributor 200.Gas block panel 240 and shell
There is airflow clearance between 100.It is logical that airflow clearance between gas block panel 240 and shell 100 forms exhaust in falling film evaporator 10
The a part in road 500.The gaseous coolant overflowed after gas-liquid separation moves downwardly to the bottom of side plate 241 along the inner wall of gas block panel 240
End, then the airflow clearance discharge between the outer wall of gas block panel 240 and shell 100.Further, falling film evaporator 10 further includes
Escape pipe 400, escape pipe 400 are set to the top of shell 100, are connected to inside one end of escape pipe 400 and shell 100, outlet
The other end of pipe 400 can be with the air-breathing circuit communication of air-conditioning equipment.Gaseous coolant can along gas block panel 240 and shell 100 it
Between have airflow clearance enter in escape pipe 400 and eventually enter into the air-breathing circuit of air-conditioning equipment.Liquid in falling film evaporator 10
Refrigerant and pipe heat exchanger 300 evaporate formation gaseous coolant after exchanging heat also is discharged along exhaust passage 500.Gas block panel 240 is deposited
In the length for increasing gaseous coolant discharge path, the carrying amount of liquid refrigerants liquid pearl in gaseous coolant is effectively reduced, in turn
Influence of the absorbing gas belt liquid to air-conditioning heat exchange cycle system is reduced, ensure that the normal operation of air-conditioning system.
The utility model also provides a kind of air-conditioning, and including interconnected evaporator and condensation structure, evaporator is above-mentioned
Falling film evaporator 10 in scheme.
Above-mentioned liquid distributor 200 is dripping type liquid distributor, the advanced row gas-liquid separation when gas-liquid mixed refrigerant enters, then with liquid
State refrigerant carries out cloth liquid, reduces refrigerant mean flow rate, it is easier to fluid column flows form is formed, in a manner of laminar flow or wave laminar
It is contacted with 310 outside wall surface of heat exchanger tube, then is spread out along circumferential extend of heat exchanger tube 310, cloth liquid is uniform, reduces on heat exchanger tube 310
The region not covered by liquid film.Gaseous coolant walks different channels from liquid refrigerants point, avoids gaseous coolant to liquid refrigerants cloth
Interfered when liquid, ensure that refrigerant fluid column integrated degree and continuity, at the same exhaust passage 500 be connected to 100 inside of shell and
Inside liquid distributor 200, exhaust passage 500 can balance 200 internal pressure of liquid distributor and 100 internal pressure of shell, and liquid coolant only leans on itself
Gravity carries out cloth liquid, is finally reached the more uniform effect of cloth liquid.
In above-mentioned liquid distributor 200, gas-liquid mixed refrigerant mobility status includes two kinds.The first situation: gas-liquid mixed is cold
Flow velocity is lower when matchmaker enters inlet tube 260, flows to liquid phase refrigerant after equal liquid pipe 230 and carries out axial distribution and under the effect of gravity
It is deposited in equal 230 bottom of liquid pipe, the equal fluid through-hole 231 on equal 230 tube wall of liquid pipe is not covered by liquid refrigerants completely；Gaseous state is cold
Matchmaker is flowed out and is risen, the equal liquid that liquid refrigerants is covered from equal 230 bottom liquid refrigerants of liquid pipe from uncovered equal fluid through-hole 231
Through-hole 231 flows out, and gas-liquid mixed refrigerant realizes first time gas-liquid separation.Second situation: gas-liquid mixed refrigerant enters inlet tube
Flow velocity is higher when 260, covers all equal fluid through-holes 231 after flowing to equal liquid pipe 230, pressure increase in equal liquid pipe 230, by liquid
State refrigerant is extruded from equal fluid through-hole 231；Liquid refrigerants carries gaseous coolant and flows to gear liquid bath 220, and it is cold to keep off liquid in liquid bath 220
Matchmaker's influx is greater than discharge, and liquid refrigerants continued accumulation reaches balance until influx and discharge, the liquid gathered at this time
Refrigerant floods equal 230 lower half of liquid pipe；When gas-liquid mixed refrigerant flows into gear liquid bath 220, gaseous coolant is overflowed in the form of bubbling,
Liquid refrigerants flows into fluid-uniformly mixing groove 210, and gaseous coolant rises in the form of bubbles, and gas-liquid mixed refrigerant realizes second of gas-liquid point
From.In actual condition, by the arrangement of control gear 220 side wall overflow recirculation hole 221 of liquid bath, above-mentioned two situations can deposit simultaneously
?.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies 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, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (12)
1. a kind of liquid distributor characterized by comprising
Fluid-uniformly mixing groove (210), the bottom wall of the fluid-uniformly mixing groove (210) offer multiple cloth fluid through-holes (211), the fluid-uniformly mixing groove (210)
Headspace be connected to exhaust passage (500)；
It keeps off liquid bath (220), is set to above the bottom wall of the fluid-uniformly mixing groove (210), keep off gear liquid bath (220) packet described in liquid bath fluid-uniformly mixing groove
Include opposite two sidewalls, opposite two sidewalls offer multiple overflow through-holes (221) respectively on gear liquid bath (220), described
The headspace of gear liquid bath (220) is connected to exhaust passage (500), can inject refrigerant in the gear liquid bath (220).
2. liquid distributor according to claim 1, which is characterized in that the liquid distributor (200) further includes equal liquid pipe (230),
The equal liquid pipe (230) is set in the gear liquid bath (220), offers multiple equal liquid on the tube wall of the equal liquid pipe (230)
Through-hole (231), the equal liquid pipe (230) can be connected to refrigerant inlet.
3. liquid distributor according to claim 2, which is characterized in that the liquid distributor (200) further includes gas block panel (240),
Gas block panel described in gas block panel (240) covers at the fluid-uniformly mixing groove (210), the gear liquid bath (220) and the equal liquid pipe (230)
Top；The top of the fluid-uniformly mixing groove (210) and gear liquid bath (220) is respectively open, and the fluid-uniformly mixing groove (210)
Top and the top of gear liquid bath (220) are arranged with the inner wall interval of the gas block panel (240) respectively；The gear liquid bath
(220) gap between the gap between the gas block panel (240), the fluid-uniformly mixing groove (210) and the gas block panel (240) with
And the inner wall of the gas block panel (240) forms a part of exhaust passage (500).
4. liquid distributor according to claim 3, which is characterized in that the liquid distributor (200) further includes two end-stopping plates
(250), the fluid-uniformly mixing groove (210), the gear liquid bath (220), the equal liquid pipe (230) and the gas block panel (240) have
Identical horizontal extension direction, the fluid-uniformly mixing groove (210), the gear liquid bath (220), the equal liquid pipe (230) and the gear
Gas plate (240) is respectively to be open along the both ends in horizontal extension direction, and two end-stopping plates close off the fluid-uniformly mixing groove
(210), the both ends of gear liquid bath (220), the equal liquid pipe (230) and the gas block panel (240) along horizontal extension direction.
5. liquid distributor according to claim 3, which is characterized in that the gas block panel (240) is along the two of horizontal extension direction
Side also has side plate (241), and the bottom end of the side plate (241) is lower than the bottom end of the fluid-uniformly mixing groove (210).
6. according to the described in any item liquid distributors of claim 2-5, which is characterized in that gear liquid bath (220) two sides described in gear liquid bath
The top of wall is higher than the center of the equal liquid pipe (230), and the equal fluid through-hole (231) is opened in equal liquid pipe (230) center
The tube wall of part below horizontal plane.
7. according to the described in any item liquid distributors of claim 2-5, which is characterized in that the internal diameter of equal fluid through-hole (231) is greater than etc.
It is more than or equal to the cloth fluid through-hole (211) in the internal diameter of the internal diameter of the overflow through-hole (221), the overflow through-hole (221)
Internal diameter.
8. according to the described in any item liquid distributors of claim 2-5, which is characterized in that the liquid distributor (200) further includes feed liquor
It manages (260), the both ends of the inlet tube (260) are respectively communicated with the equal liquid pipe (230) and refrigerant inlet.
9. a kind of falling film evaporator, which is characterized in that including shell (100), liquid distributor (200) and pipe heat exchanger (300),
The liquid distributor (200) is the described in any item liquid distributors of claim 3-5 (200)；The liquid distributor (200) is set to described
Top in shell (100), the pipe heat exchanger (300) are set to the lower section of the liquid distributor (200)；The gas block panel
(240) there is airflow clearance between the shell (100).
10. falling film evaporator according to claim 9, which is characterized in that the gas block panel (240) is along horizontal extension direction
Two sides also have side plate (241), the bottom end of the side plate (241) is lower than the bottom end of the fluid-uniformly mixing groove (210), the side plate
(241) bottom end extends in the pipe heat exchanger (300) the second comb of falling liquid film area bottom between the 5th comb of bottom.
11. falling film evaporator according to claim 9, which is characterized in that the falling film evaporator (10) further includes outlet
Manage (400), the escape pipe (400) is set to the top of the shell (100), one end of the escape pipe (400) with it is described
Connection inside shell (100), the other end of the escape pipe (400) can be with the air-breathing circuit communication of air-conditioning equipment.
12. a kind of air-conditioning, which is characterized in that including interconnected evaporator and condensation structure, the evaporator is wanted for right
Seek the described in any item falling film evaporators of 9-11 (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821074341.3U CN208398432U (en) | 2018-07-02 | 2018-07-02 | Liquid distributor, falling film evaporator and air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821074341.3U CN208398432U (en) | 2018-07-02 | 2018-07-02 | Liquid distributor, falling film evaporator and air-conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208398432U true CN208398432U (en) | 2019-01-18 |
Family
ID=65131169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821074341.3U Active CN208398432U (en) | 2018-07-02 | 2018-07-02 | Liquid distributor, falling film evaporator and air-conditioning |
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| Country | Link |
|---|---|
| CN (1) | CN208398432U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709339A (en) * | 2018-07-02 | 2018-10-26 | 珠海格力电器股份有限公司 | Liquid distributor, falling film evaporator and air-conditioning |
| CN111661888A (en) * | 2020-06-15 | 2020-09-15 | 方诺传热系统(江苏)有限公司 | Falling film type air cooler based on evaporative air cooling technology and wastewater treatment process |
| CN112028156A (en) * | 2020-09-28 | 2020-12-04 | 江苏固环环境科技有限公司 | Overflow weir type distributor for thin-layer drying equipment |
-
2018
- 2018-07-02 CN CN201821074341.3U patent/CN208398432U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709339A (en) * | 2018-07-02 | 2018-10-26 | 珠海格力电器股份有限公司 | Liquid distributor, falling film evaporator and air-conditioning |
| WO2020006992A1 (en) * | 2018-07-02 | 2020-01-09 | 珠海格力电器股份有限公司 | Liquid distributor, falling film evaporator, and air conditioner |
| CN111661888A (en) * | 2020-06-15 | 2020-09-15 | 方诺传热系统(江苏)有限公司 | Falling film type air cooler based on evaporative air cooling technology and wastewater treatment process |
| CN112028156A (en) * | 2020-09-28 | 2020-12-04 | 江苏固环环境科技有限公司 | Overflow weir type distributor for thin-layer drying equipment |
| CN112028156B (en) * | 2020-09-28 | 2024-04-26 | 江苏固环环境科技有限公司 | Overflow weir type distributing device for thin layer drying equipment |
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