CN212789807U - Evaporator core of freeze dryer - Google Patents

Abstract

The utility model relates to a freeze dryer evaporator core, it is a plurality of including a plurality of coiled pipes, connection the coiled pipe and to the baffling board of air guide effect and connect a plurality of the fin of coiled pipe, a plurality of fin is parallel to each other and the perpendicular to the coiled pipe, the monolithic the fin is circular and with shells inner wall butt in the ascending projection of vertical side, offer the baffling mouth that is used for the circulation of air, adjacent two on the fin the baffling mouth is dislocation set in vertical direction. The evaporator core heat exchange device has the effect of improving the heat exchange efficiency of the evaporator core.

Description

Evaporator core of freeze dryer

Technical Field

The application relates to the field of freeze dryers, in particular to a freeze dryer evaporator core.

Background

At present, an evaporator of a compressed air freezing type dryer comprises a shell, a fin-tube type evaporator core, an arch-shaped baffle plate and the like, wherein air enters from an air inlet on the shell, is guided to an air outlet through an air convection channel formed by the baffle plate and passes through the fin-tube type evaporator core, and cooling liquid flows through the evaporator core to cool the air.

Because the finned tube evaporator core is generally rectangular and the evaporator shell is cylindrical, a large part of gas directly reaches the gas outlet through the arc-shaped gap between the evaporator core and the shell and does not pass through the finned tubes on the surface of the evaporator core, namely the phenomenon of side flow.

With respect to the related art described above, the inventors consider that there is a drawback that the heat exchange efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to improve the heat exchange efficiency of the evaporator core, the present application provides a freeze dryer evaporator core.

The application provides a freeze dryer evaporimeter core adopts following technical scheme:

the utility model provides a freeze dryer evaporator core, is including installing a plurality of coiled pipes in the casing, connecting a plurality of the coiled pipe just to the baffling board of air guide effect and connect a plurality of the fin of coiled pipe, a plurality of fin is parallel to each other and perpendicular to the coiled pipe, the monolithic the fin is circular in the ascending projection of vertical side and with shells inner wall butt, set up the baffling mouth that is used for the circulation of air on the fin, adjacent two the baffling mouth is dislocation set in vertical direction.

Through adopting above-mentioned technical scheme, the air enters into the casing, and the coolant liquid flows in the coiled pipe, and the heat exchange is accomplished to the air on coiled pipe and fin, because the fin be with the circular of shells inner wall butt, the air is at the in-process that flows in the casing through crisscross baffling mouth on the fin in proper order, the stroke of increase air, has improved the efficiency of heat exchange.

Preferably, the centers of a plurality of the baffling openings are connected in sequence to form a spiral line.

Through adopting above-mentioned technical scheme, the line of baffling mouth constitutes the helix, has increased the stroke that the air flows, prevents because of the too big circulation of inconvenient air of distance between two adjacent baffling mouths, simultaneously because the temperature of each position coolant liquid is different in the coiled pipe, makes the air carry out abundant contact with the coiled pipe, the heat exchange of being convenient for.

Preferably, the fin comprises a plurality of folding plates, an included angle is formed between every two adjacent folding plates, and the directions of the two adjacent included angles are opposite.

Through adopting above-mentioned technical scheme, a plurality of folded sheets constitute the fin, have increased the area of contact of air with the fin, have improved the efficiency of heat exchange.

Preferably, the coiled pipe is integrally formed with a limiting protrusion surrounding the outer wall of the coiled pipe.

Through adopting above-mentioned technical scheme, the area of contact of air and coiled pipe has been increased to spacing bellied setting, improves the efficiency of heat exchange.

Preferably, the inner wall of the serpentine pipe is in a sawtooth structure along the flowing direction of the cooling liquid.

By adopting the technical scheme, the inner wall of the coiled pipe is of the sawtooth structure, so that the flowing stroke of the cooling liquid in the coiled pipe is increased, and the utilization efficiency of the cooling liquid is improved.

Preferably, the casing includes the casing body and connects the cap at casing body tip, annular spacing groove has been seted up to casing body tip, cap tip integrated into one piece have with the spacing ring of spacing groove joint, the spacing inslot is fixed with the sealing washer that plays sealed effect, casing and casing body outer wall are fixed with the mounting disc through bolted connection together.

Through adopting above-mentioned technical scheme, spacing ring joint and spacing inslot support the spacing ring through the bolt tightly in the sealing washer, realize the installation of cap and shell body.

Preferably, the outer wall of the baffle plate is fixedly provided with an installation rod which is connected with the baffle plates and is perpendicular to the end faces of the baffle plates, and the inner wall of the shell is provided with an installation groove which is used for slidably clamping the installation rod.

Through adopting above-mentioned technical scheme, the joint that slides of installation pole is in the mounting groove, and the installation of the evaporimeter core of being convenient for is with the location.

Preferably, the two ends of each coiled pipe are connected with communicating pipes which communicate the plurality of coiled pipes, each communicating pipe is connected with a cooling pipe for the cooling liquid to enter and exit, each communicating pipe and each cooling pipe are located at the same end of the shell, and each cooling pipe penetrates through the shell body and is far away from the end face of the shell cover and is in sealing connection with the shell body.

Through adopting above-mentioned technical scheme, the cooling tube is worn out from the same one end of shell body and is convenient for the connection of cooling body outside the casing.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the air flows in the shell and exchanges heat with the coiled pipe and the fins, and the fins are circular and are abutted against the inner wall of the shell, so that the air sequentially passes through the staggered baffling ports on the fins in the flowing process in the shell, the air stroke is increased, and the heat exchange efficiency is improved;

2. the fins are formed by the plurality of folding plates, so that the contact area of air and the fins is increased, and the heat exchange efficiency is improved.

Drawings

Fig. 1 is a schematic view of the internal overall structure of an embodiment of the present application.

Fig. 2 is an enlarged schematic structural diagram of a portion a in fig. 1 in an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a fin according to an embodiment of the present application.

FIG. 4 is a cross-sectional view of a serpentine tube of an embodiment of the present application.

Description of reference numerals: 1. a housing; 2. a serpentine tube; 3. a baffle plate; 4. a fin; 5. a baffling port; 6. folding the board; 7. a limiting bulge; 8. a shell body; 9. a shell cover; 10. a limiting groove; 11. a limiting ring; 12. a seal ring; 13. mounting a disc; 14. mounting a rod; 15. mounting grooves; 16. a communicating pipe; 17. and (7) cooling the tube.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a freeze dryer evaporator core. Referring to fig. 1, an evaporator core of a freeze dryer comprises a plurality of coiled pipes 2 installed in a shell 1, baffle plates 3 connected to the plurality of coiled pipes 2 and perpendicular to the coiled pipes 2, and fins 4 connected to the plurality of coiled pipes 2, wherein the plurality of fins 4 are parallel to each other and perpendicular to the coiled pipes 2, air enters from an air inlet of the shell 1 and is discharged from an air outlet, and heat exchange is completed in the shell 1.

Referring to fig. 1 and 2, casing 1 includes shell 8 and connects the cap 9 at shell 8 tip, set up cyclic annular shell 8 and with the coaxial spacing groove 10 of shell 8 on the terminal surface that shell 8 is close to cap 9, cap 9 tip integrated into one piece has the spacing ring 11 with spacing groove 10 joint, be fixed with sealing washer 12 that plays sealed effect in spacing groove 10, be fixed with mounting disc 13 through bolted connection together at casing 1 and shell 8 outer wall, be fixed with the installation pole 14 of connecting a plurality of baffling boards 3 and perpendicular to baffling board 3 terminal surface at baffling board 3 outer wall, set up the mounting groove 15 that is used for joint installation pole 14 that slides at casing 1 inner wall.

Referring to fig. 1 and 3, fin 4 includes a plurality of folded sheets 6, constitutes the contained angle between two adjacent folded sheets 6, and two adjacent contained angles orientation is opposite, and monolithic fin 4 is circular and with 1 inner wall butt of casing in the ascending projection of vertical side, offers the baffling mouth 5 that is used for the circulation of air on fin 4, and two adjacent baffling mouths 5 are the dislocation set in vertical direction, and the line that a plurality of baffling mouths 5 central point put is located same helix. The folding plates 6 are spliced to form the fins 4, the area of heat exchange with air is increased, the cooling efficiency is improved, meanwhile, due to the fact that the temperature of cooling liquid in the coiled pipe 2 at each position of the coiled pipe 2 is different, the spiral baffling openings 5 enable the air to be in full contact with each part of the coiled pipe 2, meanwhile, the path of air circulation is increased, and the efficiency of heat exchange is improved.

Referring to fig. 1 and 4, integrated into one piece has spacing arch 7 around the outer wall of coiled pipe 2 on the coiled pipe 2, and spacing arch 7 surface is glossy arc structure, makes the circulation of air more smooth and easy, just is glossy sawtooth structure along coolant flow direction at the 2 inner walls of coiled pipe, has increased the flow stroke of coolant liquid in coiled pipe 2, makes the coolant liquid can be comparatively abundant accomplish the heat exchange with the air, has improved the utilization efficiency of coolant liquid.

Referring to fig. 1 and 4, two ends of each serpentine tube 2 are connected with a communication tube 16 for communicating the serpentine tubes 2, the communication tubes 16 are connected with cooling tubes 17 for passing cooling liquid in and out, the communication tubes 16 and the cooling tubes 17 are located at the same end of the housing 1, and the cooling tubes 17 penetrate through the end face of the housing 8 far away from the housing cover 9 and are connected with the housing 8 in a sealing manner.

The implementation principle of a freeze dryer evaporator core of the embodiment of the application is as follows: the air enters the shell 1, the cooling liquid flows in the coiled pipe 2, the air sequentially passes through the baffling ports 5 on the fins 4, the path in the shell 1 is spiral, the path of air circulation is increased, the efficiency of heat exchange with the fins 4 is improved, meanwhile, the contact area of the air and the coiled pipe 2 is increased due to the fact that the outer wall of the coiled pipe 2 is provided with the limiting protrusions 7, and the heat exchange efficiency is further improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a freeze dryer evaporator core, is including installing a plurality of coiled pipes (2) in casing (1), connecting a plurality of the baffling board (3) and connection a plurality of air guide effect of coiled pipe (2) fin (4) of coiled pipe (2), its characterized in that: a plurality of fin (4) are parallel to each other and perpendicular to coiled pipe (2), monolithic fin (4) on vertical direction the projection circular and with casing (1) inner wall butt, offer baffling mouth (5) that are used for circulation of air on fin (4), adjacent two baffling mouth (5) are dislocation set in vertical direction.

2. A freeze dryer evaporator core as claimed in claim 1 wherein: the centers of the plurality of baffling ports (5) are sequentially connected to form a spiral line.

3. A freeze dryer evaporator core as claimed in claim 1 wherein: the fin (4) comprises a plurality of folding plates (6), an included angle is formed between every two adjacent folding plates (6), and the directions of every two adjacent included angles are opposite.

4. A freeze dryer evaporator core as claimed in claim 1 wherein: the coiled pipe (2) is integrally formed with a limiting bulge (7) surrounding the outer wall of the coiled pipe (2).

5. A freeze dryer evaporator core as claimed in claim 1 wherein: the inner wall of the coiled pipe (2) is in a sawtooth structure along the flowing direction of the cooling liquid.

6. A freeze dryer evaporator core as claimed in claim 1 wherein: casing (1) is including shell body (8) and cap (9) of connection at shell body (8) tip, annular spacing groove (10) have been seted up to shell body (8) tip, cap (9) tip integrated into one piece have with spacing ring (11) of spacing groove (10) joint, spacing groove (10) internal fixation has sealing washer (12) that play sealed effect, casing (1) and shell body (8) outer wall are fixed with mounting disc (13) through bolted connection together.

7. A freeze dryer evaporator core as claimed in claim 1 wherein: the outer wall of the baffle plate (3) is fixedly provided with a mounting rod (14) which is connected with the baffle plate (3) and is perpendicular to the end face of the baffle plate (3), and the inner wall of the shell (1) is provided with a mounting groove (15) which is used for sliding and clamping the mounting rod (14).

8. A freeze dryer evaporator core according to claim 6 wherein: the utility model discloses a cooling device for the cooling of a motor vehicle, including shell cover (9), coiled pipe (2) both ends all are connected with communicating pipe (16) with a plurality of coiled pipes (2) intercommunication, be connected with cooling tube (17) that are used for the coolant liquid business turn over on communicating pipe (16), communicating pipe (16) with cooling tube (17) all are located same one end of casing (1), cooling tube (17) run through casing body (8) are kept away from the terminal surface of shell cover (9) and with casing body (8) sealing connection.

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