CN110500899B

CN110500899B - Water-cooled parallel flow heat exchanger with flat tubes in row

Info

Publication number: CN110500899B
Application number: CN201910925748.5A
Authority: CN
Inventors: 冯育周; 江广华
Original assignee: Guangdong Jiema Energy Saving Technology Co ltd
Current assignee: Guangdong Jiema Energy Saving Technology Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-11-13
Anticipated expiration: 2039-09-27
Also published as: CN110500899A

Abstract

The invention discloses a water-cooled parallel flow heat exchanger with parallel flat tubes, which relates to the field of heat exchange and mainly aims to solve the problem of low heat exchange efficiency of the existing parallel flow heat exchanger; the water-cooled parallel flow heat exchanger with the row flat tubes comprises a first heat exchanger, wherein the first heat exchanger comprises a first collecting pipe and a second collecting pipe; one end of the first collecting pipe is provided with an air inlet, a second air hole communicated with the flat pipe is formed in the first collecting pipe, a fourth air hole communicated with the flat pipe is formed in the second collecting pipe, and a first partition plate is further arranged in the first collecting pipe; one end, far away from the air inlet, of the second collecting pipe is provided with a first air outlet, the flat pipe is provided with a cooling pipe and a turbulence assembly, a second heat exchanger and a third heat exchanger are further arranged below the first heat exchanger, the first heat exchanger and the second heat exchanger and the third heat exchanger are fixed through base plates and assembling pieces, and heat exchange efficiency is improved.

Description

Water-cooled parallel flow heat exchanger with flat tubes in row

Technical Field

The invention relates to the field of heat exchange, in particular to a water-cooled parallel flow heat exchanger with parallel flat tubes.

Background

The parallel flow heat exchanger is an all-aluminum heat exchanger, has compact structure and high heat exchange efficiency, has more advantages compared with the common copper pipe heat exchanger in cost, and is more and more emphasized by various air conditioner manufacturers. Ideally, the refrigerant should be distributed evenly within each flat tube of the parallel flow heat exchanger to ensure optimal heat exchange efficiency of the parallel flow heat exchanger.

The collecting pipe of the existing parallel flow heat exchanger comprises a collecting pipe body, wherein a plurality of through holes which are arranged at intervals along the length direction of the collecting pipe body are formed on the collecting pipe body; the input pipe is arranged at one end of the collecting pipe body in the length direction; at least one separator is established in the pressure manifold body, the separator will this internal partitioning of pressure manifold becomes two at least cavities, the orientation of every cavity one side of input tube is opened, and the area of the one side of the orientation input tube of two at least cavities all equals, and the number of through-hole in two at least cavities is the same, and this kind of heat exchanger only passes through flat pipe heat transfer in the use, causes heat exchange efficiency very low.

Disclosure of Invention

The invention aims to provide a water-cooled parallel flow heat exchanger with parallel flat tubes, which solves the problem of low heat exchange efficiency of the existing parallel flow heat exchanger.

In order to achieve the purpose, the invention provides the following technical scheme:

the water-cooled parallel flow heat exchanger is characterized in that the first heat exchanger comprises a first collecting pipe and a second collecting pipe, mounting pipes are fixed on the first collecting pipe and the second collecting pipe, and the mounting pipes are detachably connected with the flat pipes; one end of the first collecting pipe is provided with an air inlet, a second air hole communicated with the flat pipe is formed in the first collecting pipe, a fourth air hole communicated with the flat pipe is formed in the second collecting pipe, and the first collecting pipe is further provided with a first partition plate; the end, far away from the air inlet, of the second collecting pipe is provided with a first air outlet, the flat pipes are provided with cooling pipes and turbulence assemblies, the cooling pipes are distributed among the flat pipes in a U shape, and each cooling pipe further comprises a cooling water inlet, a cooling water outlet and a turbulence pipe; the flat tubes are fixed with radiating fins, the radiating fins are triangular, and the radiating fins on two sides of the flat tubes are designed in a staggered manner; a baffle plate is further arranged in the second collecting pipe, a threaded rod is rotatably connected between the baffle plates, one end of the threaded rod is fixedly connected with the rocker, and a second partition plate is connected to the threaded rod in a threaded manner; the vortex subassembly is including setting up the overlap joint pipe on flat pipe, the overlap joint pipe respectively with the flat tub of intercommunication at both ends, the intraductal pivot that is equipped with of overlap joint, the pivot is located the overlap joint intraductal fixed sleeve that is equipped with of overlap joint, the last puddler that is equipped with of fixed sleeve, overlap joint pipe one end is fixed with the output shaft of motor.

On the basis of the technical scheme, the invention also provides the following optional technical scheme:

in one alternative: the number of the second air holes and the number of the fourth air holes are two, and the second air holes and the fourth air holes are arranged from top to bottom.

In one alternative: the first heat exchanger and the third heat exchanger are respectively fixed with a first assembly and a third assembly, the second heat exchanger is fixed with a second assembly, two ends of the second assembly are provided with convex blocks, and the convex blocks are inserted into grooves in the first assembly and the third assembly.

In one alternative: and an upper cover plate, a front cover plate, a lower cover plate and a back plate are arranged on the whole body formed by the first heat exchanger, the second heat exchanger and the third heat exchanger.

In one alternative: and a first air hole is formed in the first collecting pipe, the first air hole is communicated with the air channel through a first air outlet, the second collecting pipe is communicated with the first air outlet through a third air hole, and a second air outlet is formed in the lower cover plate.

In one alternative: the first collecting pipe is internally provided with a distributing plate and a limiting plate, the first air hole is arranged in the limiting plate, and the limiting plate is fixed in the first collecting pipe.

Compared with the prior art, the invention has the following beneficial effects:

1. the installation pipe is detachably connected with the flat pipe, so that the flat pipe is convenient to install and detach, the flat pipe is used for air circulation, and heat exchange is carried out when the air circulates in the flat pipe; the number of the flat pipes is multiple, and the residence time of hot air in the flat pipes can be prolonged by arranging the flat pipes, so that a better exchange effect is obtained;

2. when the rotating shaft rotates, the fixing sleeve can be driven to rotate, the stirring rod is further driven to rotate, cooling water in the lap joint pipe is cooled, the lap joint pipe is very simple, one end of the lap joint pipe is fixed with an output shaft of the motor, the rotating shaft is further driven to rotate through the motor, the cooling water in the lap joint pipe can be stirred through the stirring rod, and therefore heat exchange efficiency is improved;

3. first wind hole is through first air outlet and wind channel intercommunication, and then the wind channel between the flat pipe of some hot-air admission, absorbs the heat through radiating fin, and the second collecting pipe passes through third wind hole and first air outlet intercommunication for in the air admission second collecting pipe in the wind channel, through the removal route that increases the hot-air, improve heat exchange efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a water-cooled parallel flow heat exchanger with flat tubes in rows.

Fig. 2 is a schematic structural diagram of a first collecting pipe in the water-cooled parallel flow heat exchanger with the row flat pipes.

Fig. 3 is a schematic structural diagram of a second collecting pipe in the water-cooled parallel flow heat exchanger with the row flat pipes.

Fig. 4 is a schematic structural diagram of embodiment 2 in the water-cooled parallel flow heat exchanger with the row flat tubes.

Fig. 5 is a schematic structural diagram of a flow disturbing assembly in the water-cooled parallel flow heat exchanger with the row flat tubes.

Fig. 6 is a schematic structural diagram of embodiment 3 in the water-cooled parallel flow heat exchanger with the row flat tubes.

Fig. 7 is a structural schematic diagram of an assembly in the water-cooled parallel flow heat exchanger with the row flat tubes.

Fig. 8 is a perspective view of the water-cooled parallel flow heat exchanger with the row flat tubes.

Notations for reference numerals: 100-first heat exchanger, 200-second heat exchanger, 300-third heat exchanger, 01-first collecting pipe, 02-second collecting pipe, 03-flat pipe, 04-radiating fin, 05-cooling pipe, 06-turbulence component, 07-backing plate, 08-assembly, 11-air inlet, 12-first clapboard, 13-first air outlet, 14-mounting pipe, 15-air duct, 16-distributing plate, 17-limiting plate, 18-first air hole, 19-second air hole, 21-first air outlet, 22-baffle, 23-second clapboard, 24-rocker, 25-threaded rod, 26-third air hole, 27-fourth air hole, 51-cooling water inlet, 52-cooling water outlet, 53-turbulence pipe, 53-second collecting pipe, 61-motor, 62-overlap tube, 63-fixed sleeve, 64-stirring rod, 65-rotating shaft, 81-first assembly, 82-second assembly, 83-third assembly, 84-lug, 85-groove, 91-upper cover plate, 92-front cover plate, 93-lower cover plate, 94-back plate and 95-second air outlet.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.

Example 1

Referring to fig. 1 to 3, in an embodiment of the present invention, a water-cooled parallel flow heat exchanger with parallel flat tubes includes a first heat exchanger 100, where the first heat exchanger 100 is used for exchanging heat with air; the first heat exchanger 100 includes a first collecting pipe 01 and a second collecting pipe 02, and the first collecting pipe 01 and the second collecting pipe 02 facilitate air circulation, and exchange heat in the air circulation process.

The first collecting pipe 01 and the second collecting pipe 02 are fixedly provided with mounting pipes 14, the mounting pipes 14 are detachably connected with the flat pipes 03, so that the flat pipes 03 can be conveniently mounted and dismounted, the flat pipes 03 are used for air circulation, and when hot air circulates in the flat pipes 03, heat exchange is carried out; the number of the flat tubes 03 is multiple, and the residence time of the hot air in the flat tubes 03 can be prolonged by arranging the flat tubes 03, so that a better exchange effect is obtained; through dismantling the connection, make things convenient for flat tub of 03's installation and change, when flat tub of 03 appears damaging, also can make things convenient for flat tub of 03's installation.

Furthermore, an air inlet 11 is formed in one end of the first collecting pipe 01, hot air enters the first collecting pipe 01 through the air inlet 11 and then enters the second collecting pipe 02 through the flat pipe 03, a second air hole 19 communicated with the flat pipe 03 is formed in the first collecting pipe 01, the hot air enters the flat pipe 03 through the second air hole 19, meanwhile, a fourth air hole 27 communicated with the flat pipe 03 is formed in the second collecting pipe 02, the hot air in the flat pipe 03 enters the second collecting pipe 02 through the fourth air hole 27, the number of the second air holes 19 and the number of the fourth air holes 27 are two, and the second air holes 19 and the fourth air holes 27 are arranged vertically; the first header 01 is further provided therein with a first partition plate 12, and the movement of the hot air can be restricted by the first partition plate 12 to move along a specific path, thereby improving heat exchange efficiency.

Further, the flat tubes 03 are fixed with the radiating fins 04, heat on the flat tubes 03 can be absorbed through the radiating fins 04, heat exchange is facilitated, the radiating fins 04 are triangular, and the radiating fins 04 on two sides of each flat tube 03 are designed in a staggered mode, so that the radiating fins 04 between the adjacent flat tubes 03 cannot interfere with each other, and the heat exchange is very simple.

Further, the end, far away from air inlet 11, of second pressure manifold 02 is equipped with first air outlet 21, first air outlet 21 is used for discharging air, still be equipped with baffle 22 in the second pressure manifold 02, it is connected with threaded rod 25 to rotate between the baffle 22, threaded rod 25 one end and rocker 24 fixed connection, and then drive second baffle 23 through rotating rocker 24 and rotate, threaded rod 25 goes up threaded connection has second baffle 23, through adjusting the position of second baffle 23, can control the flow direction of hot air, set the position of second baffle 23 in advance as required in the in-service use process, when threaded rod 25 is rotatory, can drive second baffle 23 and remove, and then adjust the position of second baffle 23, and is very practical.

Furthermore, the cooling pipes 05 are arranged in the flat pipes 03, cooling water can conveniently pass through the cooling pipes 05, the cooling pipes 05 are arranged between the flat pipes 03 in a U shape, namely the cooling pipes 05 are arranged in each flat pipe 03, and meanwhile, the adjacent flat pipes 03 are connected through the cooling pipes 05, so that the cooling water can move between the flat pipes 03 in the U shape, the contact area between the cooling water and heat is increased, and the heat exchange efficiency is improved; the cooling pipe 05 further comprises a cooling water inlet 51 and a cooling water outlet 52, cooling water enters through the cooling water inlet 51 and flows out through the cooling water outlet 52, and heat in the flat pipe 03 is absorbed when the cooling pipe 05 moves; a flow disturbing pipe 53 is arranged in the cooling pipe 05, and the residence time of cooling water is prolonged through the flow disturbing pipe 53, so that the heat exchange efficiency is improved.

Example 2

Referring to fig. 4 to 5, the embodiment of the present invention is different from embodiment 1 in that a turbulent flow component 06 is further disposed on the flat tube 03, and the heat exchange efficiency is improved by the turbulent flow component 06; turbulence subassembly 06 is including setting up overlap pipe 62 on flat pipe 03, overlap pipe 62 communicates with the flat pipe 03 at both ends respectively, be equipped with pivot 65 in the overlap pipe 62, pivot 65 runs through all overlap pipe 62 promptly, pivot 65 is located and is equipped with fixed sleeve 63 in the overlap pipe 62, be equipped with puddler 64 on the fixed sleeve 63, when pivot 65 rotates, can drive fixed sleeve 63 and rotate, and then drive puddler 64 and rotate, cool off the cooling water in the overlap pipe 62, and is very simple, overlap pipe 62 one end simultaneously and fix with motor 61's output shaft, and then it is rotatory to drive pivot 65 through motor 61, can stir the cooling water of inside through puddler 64, and then improve heat exchange efficiency.

Example 3

Referring to fig. 6 to 8, a second heat exchanger 200 and a third heat exchanger 300 are further arranged below the first heat exchanger 100, the second heat exchanger 200 and the third heat exchanger 300 are completely the same, and the first heat exchanger 100 and the second heat exchanger 200, and the second heat exchanger 200 and the third heat exchanger 300 are fixed by backing plates 07, so that the stability of the first heat exchanger 100, the second heat exchanger 200 and the third heat exchanger 300 is improved; meanwhile, a first assembly 81 and a third assembly 83 are respectively fixed on the first heat exchanger 100 and the third heat exchanger 300, a second assembly 82 is fixed on the second heat exchanger 200, two ends of the second assembly 82 are provided with protrusions 84, the protrusions 84 are inserted into grooves 85 on the first assembly 81 and the third assembly 83, and the first heat exchanger 100, the second heat exchanger 200 and the third heat exchanger 300 are assembled by arranging an assembly 08, so that a better heat dissipation effect is achieved.

Further, an upper cover plate 91, a front cover plate 92, a lower cover plate 93 and a back plate 94 are arranged on the whole body formed by the first heat exchanger 100, the second heat exchanger 200 and the third heat exchanger 300, so that the whole body is sealed.

Further, be equipped with first wind hole 18 in the first pressure manifold 01, first wind hole 18 communicates with wind channel 15 through first air outlet 13, and then a part of hot-air gets into wind channel 15 between the flat pipe 03, absorb the heat through radiating fin 04, second pressure manifold 02 passes through third wind hole 26 and first air outlet 13 intercommunication, make in the air admission second pressure manifold 02 of wind channel 15, through increasing the removal route of hot-air, improve heat exchange efficiency, because first heat exchanger 100, the whole of second heat exchanger 200 and third heat exchanger 300 constitution is closed, so it is more high-efficient, still be equipped with second air outlet 95 on the lower cover plate 93, hot-air in the wind channel 15 is discharged through second air outlet 95, and is very practical.

Further, still be equipped with the break plate 16 in the first pressure manifold 01, distribute hot-air through break plate 16 for can be even get into flat pipe 03 in, first wind hole 18 sets up in limiting plate 17, and limiting plate 17 is fixed in first pressure manifold 01.

The working principle of the invention is as follows: hot air enters the first collecting pipe 01 through the air inlet 11, enters the flat pipe 03 through the second air hole 19, is subjected to heat exchange with cooling water in the flat pipe 03, heat on the flat pipe 03 can also be transferred to the radiating fin 04, hot air in the flat pipe 03 enters the second collecting pipe 02 through the fourth air hole 27, moves in the first collecting pipe 01, the second collecting pipe 02 and the flat pipe 03 according to a specific path under the action of the first partition plate 12 and the second partition plate 23, and is finally discharged from the first air outlet 21; the heat exchange efficiency is improved in the flat pipe 03 through the turbulence component 06; meanwhile, a part of hot air on the first collecting pipe 01 and the second collecting pipe 02 enters the air duct 15 through the first air outlet 13, absorbs heat through the heat dissipation fins 04, and is finally discharged from the second air outlet 95.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The water-cooled parallel flow heat exchanger with the parallel flat tubes comprises a first heat exchanger (100), a second heat exchanger (200) and a third heat exchanger (300), wherein the first heat exchanger (100) and the second heat exchanger (200) and the third heat exchanger (300) are fixed through a base plate (07) and a combined piece (08), the water-cooled parallel flow heat exchanger is characterized in that the first heat exchanger (100) comprises a first collecting pipe (01) and a second collecting pipe (02), mounting tubes (14) are fixed on the first collecting pipe (01) and the second collecting pipe (02), and the mounting tubes (14) are detachably connected with the flat tubes (03); an air inlet (11) is formed in one end of the first collecting pipe (01), a second air hole (19) communicated with the flat pipe (03) is formed in the first collecting pipe (01), a fourth air hole (27) communicated with the flat pipe (03) is formed in the second collecting pipe (02), and a first partition plate (12) is further arranged on the first collecting pipe (01); a first air outlet (21) is formed in one end, far away from the air inlet (11), of the second collecting pipe (02), cooling pipes (05) and turbulent flow components (06) are arranged on the flat pipes (03), the cooling pipes (05) are distributed among the flat pipes (03) in a U shape, and the cooling pipes (05) further comprise cooling water inlets (51), cooling water outlets (52) and turbulent flow pipes (53); the flat tubes (03) are fixedly provided with radiating fins (04), the radiating fins (04) are triangular, and the radiating fins (04) on the two sides of the flat tubes (03) are designed in a staggered manner; the second collecting pipe (02) is also internally provided with baffle plates (22), a threaded rod (25) is rotatably connected between the baffle plates (22), one end of the threaded rod (25) is fixedly connected with a rocker (24), and a second clapboard (23) is in threaded connection with the threaded rod (25); vortex subassembly (06) is including setting up overlap joint pipe (62) on flat pipe (03), overlap joint pipe (62) respectively with flat pipe (03) intercommunication at both ends, be equipped with pivot (65) in overlap joint pipe (62), pivot (65) are located and are equipped with fixed sleeve (63) in overlap joint pipe (62), are equipped with puddler (64) on fixed sleeve (63), overlap joint pipe (62) one end is fixed with the output shaft of motor (61).

2. The water-cooled parallel flow heat exchanger with flat tubes in rows according to claim 1, wherein the number of the second air holes (19) and the number of the fourth air holes (27) are two, and are arranged up and down.

3. The water-cooled parallel flow heat exchanger with the parallel flat tubes in the row of the heat exchangers (100) and (300) is characterized in that a first assembly (81) and a third assembly (83) are respectively fixed on the first heat exchanger (100) and the third heat exchanger (300), a second assembly (82) is fixed on the second heat exchanger (200), two ends of the second assembly (82) are provided with convex blocks (84), and the convex blocks (84) are inserted into grooves (85) in the first assembly (81) and the third assembly (83).

4. The water-cooled parallel flow heat exchanger with flat tubes in rows according to claim 3, characterized in that the first heat exchanger (100), the second heat exchanger (200) and the third heat exchanger (300) are integrally provided with an upper cover plate (91), a front cover plate (92), a lower cover plate (93) and a back plate (94).

5. The water-cooled parallel flow heat exchanger with the parallel flat tubes according to claim 4, wherein a first air hole (18) is formed in the first collecting pipe (01), the first air hole (18) is communicated with the air duct (15) through a first air outlet (13), the second collecting pipe (02) is communicated with the first air outlet (13) through a third air hole (26), and a second air outlet (95) is further formed in the lower cover plate (93).

6. The water-cooled parallel flow heat exchanger with the parallel flat tubes according to claim 5, wherein a distribution plate (16) and a limiting plate (17) are further disposed in the first collecting pipe (01), the first air holes (18) are disposed in the limiting plate (17), and the limiting plate (17) is fixed on the inner wall of the first collecting pipe (01).