CN214950775U

CN214950775U - Shell and tube heat exchanger with feeding and discharging in same direction

Info

Publication number: CN214950775U
Application number: CN202121200265.8U
Authority: CN
Inventors: 白子涵; 白云
Original assignee: Weima Automation Equipment Changshu Co ltd
Current assignee: Weima Automation Equipment Changshu Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-11-30
Anticipated expiration: 2031-05-31

Abstract

A shell-and-tube heat exchanger with feeding and discharging in the same direction comprises a shell, wherein a cooling medium inlet port is formed in the shell wall at the right end, and a cooling medium outlet port is formed in the shell wall at the left end; the left side of the left end cover is provided with a first material leading port and a second material leading port, and the right end cover corresponds to the right end of the pipe shell; tubulose circulation backward flow heat exchange mechanism, including material left side baffle, material right side baffle and a set of hot exchange pipe, the right flank of material left side baffle is fixed with the left end terminal surface of tube, there is left baffle guide unit on the material left side baffle, the left surface of material right side baffle is fixed with the right-hand member terminal surface of tube, there is right baffle guide unit on the material right side baffle, the left end and the cooperation of left baffle guide unit of a set of hot exchange pipe, right-hand member and the cooperation of right baffle guide unit, the middle part is located the tube cavity of tube, the right flank of left end lid and the left surface cooperation of material left side baffle, the left surface of right end lid and the right side cooperation of material right side baffle. Improve the adaptability to food and ensure good circulation effect; the assembly is convenient.

Description

Shell and tube heat exchanger with feeding and discharging in same direction

Technical Field

The utility model belongs to the technical field of food processing equipment, concretely relates to syntropy business turn over material shell and tube heat transfer device.

Background

The heat exchange device is a common device used in food, pharmaceutical and other industries for heat transfer exchange between gas-liquid, liquid-liquid and the like, for example, for raising temperature of liquid by steam or for lowering temperature of liquid at high temperature and normal temperature, and for raising temperature of liquid at high temperature and normal temperature, and the like.

At present, plate type heat exchange devices still occupy a certain position in the industries of food, pharmacy and the like because the plate type heat exchange devices have the advantages of relatively high heat exchange efficiency, small heat loss and the like. Typical examples of the plate heat exchange devices described above are CN2090959U (plate heat exchanger), CN101075314A (plate heat exchanger), CN102165279A (plate heat exchanger) and CN202793137U (plate heat exchanger plates with double different corrugations), etc.

However, the plate heat exchanger device described above is exposed to the following disadvantages during actual use: because the flow channel gaps between the plates of the plate type heat exchange device are relatively narrow, when the plate type heat exchange device is used for producing food such as ice cream and the like, the beverage is not easy to pass (also called as 'flow through') and even can cause blockage due to particles contained in the beverage; because the plate type heat exchange device is generally composed of a plurality of plates with different sizes, the mounting principle of a number seat must be strictly followed in the assembly process, so that once the sequence and/or the position are wrong, the normal use is influenced on one hand, and the disassembly is inconvenient on the other hand; as described above, since the gap (space) between the sheets is narrow, when it is necessary to check whether the effect after cleaning meets the expected requirement, it cannot be clearly observed by naked eyes, and there is a blindness in determining whether the degree of cleaning is good or bad; because the slab of plate heat transfer device generally adopts the cushion to seal between the slab, cold and hot medium and food thick liquids etc. have been kept apart to the cushion is ageing or the slab does not compress tightly or cold and hot medium runner pressure is too big, just can take place cold and hot medium and liquid food thick liquids to communicate, both influences the heat transfer effect, produces the pollution to liquid food again to influence food security.

Technical information on heat exchange devices of other construction than the above-mentioned plate heat exchange device can also be found in the published chinese patent documents, such as, by way of example only, CN206371405U (a fresh milk cooling device), CN107744790A (a cooling device for dairy products processing), CN108477299A (a cooling device for dairy products production process), CN109373700A (a cooling device for dairy products), CN212087896U (a cooling device for dairy products). However, the technical content disclosed in the aforementioned patent documents is not limited, and the above-mentioned shortcomings of the plate heat exchanger are not fully overcome, so that the following technical solutions are needed to be improved.

SUMMERY OF THE UTILITY MODEL

The task of the utility model is to provide a help showing the increase and supply the passageway diameter of food circulation and can avoid suffering the particulate matter jam in the food and ensure good circulation effect, be favorable to abandoning the order nature installation factor that receives the part and influence and can embody good easy to assemble and dismantle the effect as required, be of value to conveniently implement clean and conveniently look over the sanitary condition as required and need not to use the part such as sealing rubber packing ring and can ensure the health safety of food, have the flow resistance of being convenient for reduce and promote heat exchange efficiency and can energy saving and improve food production efficiency's syntropy business turn over shell and tube material formula heat transfer device.

The utility model discloses a task is accomplished like this, a syntropy business turn over material shell and tube formula heat transfer device, including a tube, be equipped with a coolant introduction interface that communicates with the tube chamber of tube on the conch wall of the right-hand member of this tube, and be equipped with a coolant leading-out interface that communicates with the tube chamber of tube on the conch wall of the left end of tube; the left end cover corresponds to the left end of the pipe shell, the left side of the left end cover is provided with a first material leading interface I and a second material leading interface II, and the right end cover corresponds to the right end of the pipe shell; a tubular circulation reflux heat exchange mechanism, which comprises a left material guide plate, a right material guide plate and a group of heat exchange tubes, wherein the right side surface of the left material guide plate is fixed with the left end surface of the tube shell, a left guide plate material guide unit is formed on the left material guide plate, the first material guide port I and the second material guide port II are communicated with the left guide plate material guide unit, the left side surface of the right material guide plate is fixed with the right end surface of the tube shell, and a right guide plate material guide unit is formed on the right material guide plate, the left end of a group of heat exchange tubes is matched and communicated with the left guide plate material guide unit, the right end is matched and communicated with the right guide plate material guide unit, the middle parts of the heat exchange tubes are positioned in the tube shell cavity of the tube shell, the right side surface of the left end cover is matched and fixed with the left side surface of the left material guide plate, and the left side surface of the right end cover is matched and fixed with the right side surface of the right material guide plate.

In a specific embodiment of the present invention, the cooling medium introducing port and the cooling medium leading-out port are in a diagonally disposed positional relationship with each other.

In another specific embodiment of the present invention, the left guide guiding unit includes a left guide first guiding hole i, a left guide second guiding hole ii, a left guide first guiding cavity i, a left guide second guiding cavity ii, a left guide third guiding cavity iii, a left guide fourth guiding cavity iv and a left guide fifth guiding cavity v, the right guide guiding unit includes a right guide first guiding cavity i, a right guide second guiding cavity ii, a right guide third guiding cavity iii, a right guide fourth guiding cavity iv, a right guide fifth guiding cavity v and a right guide sixth guiding cavity vi, the material first guiding hole i corresponds to and communicates with the left guide first guiding hole i, and the material second guiding hole ii corresponds to and communicates with the left guide second guiding hole ii; the left ends of the group of heat exchange tubes are respectively matched and communicated with a first left guide hole I, a second left guide hole II, a first left guide cavity I, a second left guide cavity II, a third left guide cavity III, a fourth left guide cavity IV and a fifth left guide cavity V, and the right ends of the group of heat exchange tubes are respectively matched and communicated with a first right guide cavity I, a second right guide cavity II, a third right guide cavity III, a fourth right guide cavity IV, a fifth right guide cavity V and a sixth right guide cavity VI.

In another specific embodiment of the present invention, the right side surface of the left material guide plate is welded to the left end surface of the tube, and the left side surface of the right material guide plate is welded to the right end surface of the tube.

In another specific embodiment of the present invention, the left end cover and the left material guide plate are fixed by a fastener or a hinge device; the right end cover and the right material guide plate are matched and fixed through a fastener or are matched and fixed through a hinge device.

In yet another specific embodiment of the present invention, when the left end cover is fixed to the left material guide plate by a fastening member, left end cover screw holes are formed at intervals on the edge portion of the left end cover, and left end cover fixing screws are disposed on the left end cover screw holes, left guide plate screw holes are formed on the edge portion of the left material guide plate, and positions corresponding to the left end cover screw holes, and the left end cover fixing screws are screwed into the left guide plate screw holes; when the right end cover is matched and fixed with the right material guide plate through a fastening piece, right end cover screw holes are formed in the right end cover at intervals and are positioned at the edge part of the right end cover, right end cover fixing screws are matched and arranged on the right end cover screw holes, right guide plate screw holes are formed in the edge part of the right material guide plate and in positions corresponding to the right end cover screw holes, and the right end cover fixing screws are screwed into the right guide plate screw holes.

In a more specific embodiment of the present invention, the left ends of the set of heat exchange tubes respectively extend into and are fixed to the first guide hole i of the left guide plate, the second guide hole ii of the left guide plate, the first guide cavity i of the left guide plate, the second guide cavity ii of the left guide plate, the third guide cavity iii of the left guide plate, the fourth guide cavity iv of the left guide plate, and the fifth guide cavity v of the left guide plate, and the right ends of the set of heat exchange tubes respectively extend into and are fixed to the first guide cavity i of the right guide plate, the second guide cavity ii of the right guide plate, the third guide cavity iii of the right guide plate, the fourth guide cavity iv of the right guide plate, the fifth guide cavity v of the right guide plate, and the sixth guide cavity vi of the right guide plate.

In yet another specific embodiment of the present invention, the left guide screw hole and the right guide screw hole are blind holes.

In yet another specific embodiment of the present invention, the number of the group of heat exchange tubes is twelve, the left ends of one heat exchange tube respectively extend into and are welded and fixed to the left guide plate first guide hole i and the left guide plate second guide hole ii, and the left ends of two heat exchange tubes respectively extend into and are welded and fixed to the left guide plate first guide cavity i, the left guide plate second guide cavity ii, the left guide plate third guide cavity iii, the left guide plate fourth guide cavity iv and the left guide plate fifth guide cavity v; and the right ends of the two heat exchange tubes of the first guide cavity I of the right guide plate, the second guide cavity II of the right guide plate, the third guide cavity III of the right guide plate, the fourth guide cavity IV of the right guide plate, the fifth guide cavity V of the right guide plate and the sixth guide cavity VI of the right guide plate are respectively inserted and welded and fixed.

In yet another specific embodiment of the present invention, the first guide cavity i of the left guide plate, the second guide cavity ii of the left guide plate, the third guide cavity iii of the left guide plate, the fourth guide cavity iv of the left guide plate, the fifth guide cavity v of the left guide plate, the first guide cavity i of the right guide plate, the second guide cavity ii of the right guide plate, the third guide cavity iii of the right guide plate, the fourth guide cavity iv of the right guide plate, the fifth guide cavity v of the right guide plate and the sixth guide cavity vi of the right guide plate are all oval.

One of the technical effects of the technical proposal provided by the utility model is that the tubular circulation reflux heat exchange mechanism is adopted, thereby obviously increasing the diameter of the channel for food circulation, and the adaptability to food can be enhanced and good circulation effect can be ensured without being blocked by particles in the food; secondly, because the structure, the shape and the size of a group of heat exchange tubes of the structural system of the tubular circulating reflux heat exchange mechanism are the same, the heat exchange mechanism is not restricted by the severe factors of installation, and can be conveniently assembled and quickly detached from the left end cover and the right end cover as required; thirdly, the clean state of a group of heat exchange tubes of the tubular circulating reflux heat exchange mechanism can be clearly observed after the left end cover and the right end cover are removed or opened, which is favorable for ensuring the safety and sanitation of food; fourthly, because the total path of the food during heat exchange is long and the continuity is smooth, the flow resistance can be reduced, the production efficiency can be improved, and the energy consumption can be saved.

Drawings

Fig. 1 is a structural diagram of an embodiment of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

Detailed Description

In order to make the technical essence and advantages of the present invention more clear, the applicant below describes in detail the embodiments, but the description of the embodiments is not a limitation of the present invention, and any equivalent changes made according to the inventive concept, which are only formal and not essential, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are exemplified by the position state of fig. 1, and thus, it should not be understood as a particular limitation to the technical solution provided by the present invention.

Referring to fig. 1 and 2, a tube shell 1 is shown, a cooling medium inlet port 12 (also referred to as "heat exchange medium inlet port", hereinafter) communicating with a tube shell cavity 11 of the tube shell 1 is provided on a shell wall at a right end of the tube shell 1, and a cooling medium outlet port 13 (also referred to as "heat exchange medium outlet port", hereinafter) communicating with the tube shell cavity 11 of the tube shell 1 is provided on a shell wall at a left end of the tube shell 1; a left end cover 2 and a right end cover 3 are shown, the left end cover 2 corresponds to the left end of the pipe shell 1, a first material leading port I21 and a second material leading port II 22 are arranged on the left side of the left end cover 2, and the right end cover 3 corresponds to the right end of the pipe shell 1; a tubular circulating reflux heat exchange mechanism 4 is shown, the tubular circulating reflux heat exchange mechanism 4 comprises a left material guide plate 41, a right material guide plate 42 and a group of heat exchange tubes 43, the right side surface of the left material guide plate 41 is fixed with the left end surface of the tube shell 1, a left material guide plate guide unit 411 is formed on the left material guide plate 41, the first material guide port I21 and the second material guide port II 22 are communicated with the left material guide plate guide unit 411, the left side surface of the right material guide plate 42 is fixed with the right end surface of the tube shell 1, a right material guide plate guide unit 421 is formed on the right material guide plate 42, the left end of the group of heat exchange tubes 43 is matched and communicated with the left material guide plate guide unit 411, the right end is matched and communicated with the tube shell 421, the middle part of the group of the tube shell 43 is positioned in the heat exchange tube cavity 11 of the tube shell 1, the right side surface of the left end cover 2 is matched and fixed with the left side surface of the left material guide plate 41, the left side surface of the right end cover 3 is matched with the right side surface of the right material guide plate 42 and fixed with each other.

As shown in fig. 1 and 2, the cooling medium inlet port 12 and the cooling medium outlet port 13 are diagonally disposed with respect to each other.

Continuing to refer to fig. 1 and fig. 2, the left guide plate guiding unit 411 includes a left guide plate first guiding hole i 4111, a left guide plate second guiding hole ii 4112, a left guide plate first guiding cavity i 4113, a left guide plate second guiding cavity ii 4114, a left guide plate third guiding cavity iii 4115, a left guide plate fourth guiding cavity iv 4116, and a left guide plate fifth guiding cavity v 4117, the right guide plate guiding unit 421 includes a right guide plate first guiding cavity i 4211, a right guide plate second guiding cavity ii 4212, a right guide plate third guiding cavity iii 4213, a right guide plate fourth guiding cavity iv 4214, a right guide plate fifth guiding cavity v 4215, and a right guide plate sixth guiding cavity vi 4216, the material first guiding hole i 21 corresponds to and communicates with the left guide plate first guiding hole i 4111, and the material second guiding hole ii 22 corresponds to and communicates with the left guide plate second guiding hole ii 4112; the left ends of the group of heat exchange tubes 43 are respectively matched and communicated with a left guide plate first guide hole I4111, a left guide plate second guide hole II 4112, a left guide plate first guide cavity I4113, a left guide plate second guide cavity II 4114, a left guide plate third guide cavity III 4115, a left guide plate fourth guide cavity IV 4116 and a left guide plate fifth guide cavity V4117, and the right ends of the group of heat exchange tubes 43 are respectively matched and communicated with a right guide plate first guide cavity I4211, a right guide plate second guide cavity II 4212, a right guide plate third guide cavity III 4213, a right guide plate fourth guide cavity IV 4214, a right guide plate fifth guide cavity V4215 and a right guide plate sixth guide cavity VI 4216.

Preferably, the right side surface of the left material guide 41 is welded to the left end surface of the case 1, and the left side surface of the right material guide 42 is welded to the right end surface of the case 1.

In the embodiment, the left end cover 2 and the left material guide plate 41 are fixed by a fastener, but may also be fixed by a hinge device; in the same way, the right end cover 3 and the right material guide plate 42 are fixed by a fastener, but can also be fixed by a hinge device.

When the left end cover 2 is matched and fixed with the left material guide plate 41 through a fastening piece, left end cover screw holes 23 are arranged on the left end cover 2 and at the edge part of the left end cover 2 at intervals, a left end cover fixing screw 231 is arranged on the left end cover screw hole 23, a left guide plate screw hole 412 is arranged on the edge part of the left material guide plate 41 and at the position corresponding to the left end cover screw hole 23, and the left end cover fixing screw 231 is screwed into the left guide plate screw hole 412; when the right end cover 3 is fitted and fixed to the right material guide plate 42 by a fastening member, right end cover screw holes 31 are provided at intervals in the edge portion of the right end cover 3 on the right end cover 3, right end cover fixing screws 311 are provided in the right end cover screw holes 31, right guide plate screw holes 422 are provided in the edge portion of the right material guide plate 42 at positions corresponding to the right end cover screw holes 31, and the right end cover fixing screws 311 are screwed into the right guide plate screw holes 422.

The applicant needs to state that: when the left cap 2 is fixed to the left material guide 41 by the hinge device mentioned above, a hinge may be provided between an edge portion of the left side surface of the left cap 2 and an edge portion of the left material guide 41, i.e., the outer side surface, and locking members that lock or snap with each other may be provided at positions opposite to the hinge. The left end cover 2 and the left material guide plate 41 are locked by the hasp component, so that the left end cover 2 can be conveniently opened. Since the right end cover 3 and the right material guide 42 are connected to each other by the hinge device, the same examples as the above are omitted.

Continuing to refer to fig. 1 and fig. 2, the left ends of the group of heat exchange tubes 43 respectively extend into the left guide plate first guide hole i 4111, the left guide plate second guide hole ii 4112, the left guide plate first guide cavity i 4113, the left guide plate second guide cavity ii 4114, the left guide plate third guide cavity iii 4115, the left guide plate fourth guide cavity iv 4116 and the left guide plate fifth guide cavity v 4117 and are fixed, and the right ends of the group of heat exchange tubes 43 respectively extend into the right guide plate first guide cavity i 4211, the right guide plate second guide cavity ii 4212, the right guide plate third guide cavity iii 4213, the right guide plate fourth guide cavity iv 4214, the right guide plate fifth guide cavity v 4215 and the right guide plate sixth guide cavity vi 4216 and are fixed.

In this embodiment, the left guide screw hole 412 and the right guide screw hole 422 are blind holes.

In this embodiment, there are twelve heat exchanging pipes 43, the left ends of one heat exchanging pipe 43 in each of the first guide hole i 4111 and the second guide hole ii 4112 of the left guide plate are inserted and welded, and the left ends of two heat exchanging pipes 43 in each of the first guide cavity i 4113, the second guide cavity ii 4114, the third guide cavity iii 4115, the fourth guide cavity 411iv 6 and the fifth guide cavity v 4117 of the left guide plate are inserted and welded; the right end of each of the right guide plate first guide cavity I4211, the right guide plate second guide cavity II 4212, the right guide plate third guide cavity III 4213, the right guide plate fourth guide cavity IV 4214, the right guide plate fifth guide cavity V4215 and the right guide plate sixth guide cavity VI 4216 extends into and is welded and fixed with the right end of each of the two heat exchange tubes 43.

As shown in fig. 1, the first guide cavity i 4113, the second guide cavity ii 4114, the third guide cavity iii 4115, the fourth guide cavity iv 4116, the fifth guide cavity v 4117, the first guide cavity i 4211, the second guide cavity ii 4212, the third guide cavity iii 4213, the fourth guide cavity iv 4214, the fifth guide cavity v 4215 and the sixth guide cavity vi 4216 are all oval.

In practical use, a cooling fluid circulation and return mechanism preferably powered by a refrigeration compressor is connected in series between the cooling medium inlet port 12 and the cooling medium outlet port 13, and specifically, under the operation of the cooling fluid circulation and return mechanism, cooling fluid is introduced from the cooling medium inlet port 12 and is introduced from the cooling medium outlet port 13 (the cooling medium inlet port 12 and the cooling medium outlet port 13 may also function as the cooling medium outlet port and the cooling medium inlet port, respectively, and is specifically determined according to the pipeline connection mode of the cooling fluid circulation and return mechanism). In the foregoing process, as the cooling medium passes through the shell chamber 11, the group of heat exchange tubes 43 of the tubular recirculating heat exchanging mechanism 4 is heat-exchanged (heat-exchanged) by the cooling medium. Meanwhile, food to be cooled, such as ice cream, is introduced from the first material introduction port I21, sequentially passes through the first left guide plate material guiding hole I4111 of the left guide plate material guiding unit 411 on the left material guide plate 41 corresponding to the first material introduction port I21, and sequentially passes through the first right guide plate material guiding cavity I4211, the heat exchange tube 43, the first left guide plate material guiding cavity I4113, the heat exchange tube 43, the second right guide plate material guiding cavity II 4212, the heat exchange tube 43, the second left guide plate material guiding cavity II 4114, the heat exchange tube 43, the third right guide plate material guiding cavity III 4213, the heat exchange tube 43, the third left guide plate material guiding cavity III 4115, the heat exchange tube 43, the fourth right guide plate material guiding cavity IV 4214, the heat exchange tube 43, the fourth left guide plate material guiding cavity IV 4116, the heat exchange tube 43, the fifth right guide plate material guiding cavity 4215V, the material guiding cavity III 4115, the heat exchange tube 43, the fourth right guide plate material guiding cavity IV 4214, the heat exchange tube 6, The heat exchange tube 43, the left guide plate fifth guide cavity V4117, the heat exchange tube 43, the right guide plate sixth guide cavity VI 4216 and the heat exchange tube 43 enter the left guide plate second guide hole II 4112 and are led out from the left guide plate second guide hole II 4112 to the material second leading interface II 22.

If materials such as milk and the like need to be heated, the cooling medium inlet interface 12 and the cooling medium outlet interface 13 respectively change into a heating medium inlet interface and a heating medium outlet interface, the cooling liquid circulating and refluxing mechanism correspondingly changes into a heating medium circulating and refluxing mechanism, and the materials led out from the material second outlet interface II 22 are hot beverage materials.

If in order to avoid the utility model discloses and lead interface I21 and material second to lead interface II 22 with aforementioned-mentioned material first respectively set up on left end lid 2 and right-hand member lid 3, should regard as equivalent technical means so and still belong to the utility model discloses a technical connotation scope.

To sum up, the technical solution provided by the present invention remedies the defects in the prior art, successfully completes the invention task, and faithfully embodies the technical effects mentioned in the above technical effect column by the applicant.

Claims

1. The shell-and-tube heat exchange device with the same direction for feeding and discharging materials is characterized by comprising a shell tube (1), wherein a cooling medium inlet interface (12) communicated with a shell tube cavity (11) of the shell tube (1) is arranged on the shell wall at the right end of the shell tube (1), and a cooling medium outlet interface (13) communicated with the shell tube cavity (11) of the shell tube (1) is arranged on the shell wall at the left end of the shell tube (1); the left end cover (2) corresponds to the left end of the pipe shell (1), a first material leading port I (21) and a second material leading port II (22) are arranged on the left side of the left end cover (2), and the right end cover (3) corresponds to the right end of the pipe shell (1); a tubular circulation reflux heat exchange mechanism (4), the tubular circulation reflux heat exchange mechanism (4) comprises a left material guide plate (41), a right material guide plate (42) and a group of heat exchange tubes (43), the right side surface of the left material guide plate (41) is fixed with the left end surface of the tube shell (1), a left material guide unit (411) is formed on the left material guide plate (41), a first material guide port I (21) and a second material guide port II (22) are communicated with the left material guide unit (411), the left side surface of the right material guide plate (42) is fixed with the right end surface of the tube shell (1), a right material guide plate unit (421) is formed on the right material guide plate (42), the left ends of the group of heat exchange tubes (43) are matched and communicated with the left material guide unit (411), and the right ends are matched and communicated with the right material guide unit (421), and the middle parts of a group of heat exchange tubes (43) are positioned in a tube shell cavity (11) of the tube shell (1), the right side surface of the left end cover (2) is matched and fixed with the left side surface of the left material guide plate (41), and the left side surface of the right end cover (3) is matched and fixed with the right side surface of the right material guide plate (42).

2. The shell and tube heat exchanger with cocurrent feed and discharge according to claim 1, characterized in that the cooling medium inlet connection (12) and the cooling medium outlet connection (13) are placed diagonally to each other.

3. The shell-and-tube heat exchanger with cocurrent feeding and discharging according to claim 1, wherein the left guide guiding unit (411) comprises a left guide first guiding hole I (4111), a left guide second guiding hole II (4112), a left guide first guiding cavity I (4113), a left guide second guiding cavity II (4114), a left guide third guiding cavity III (4115), a left guide fourth guiding cavity IV (4116) and a left guide fifth guiding cavity V (4117), the right guide guiding unit (421) comprises a right guide first guiding cavity I (4211), a right guide second guiding cavity II (4212), a right guide third guiding cavity III (4213), a right guide fourth guiding cavity IV (4214), a right guide fifth guiding cavity V (4215) and a right guide sixth guiding cavity VI (4216), the first material guiding hole I (21) corresponds to and communicates with the left guide first guiding hole I (4111), the second material guide port II (22) corresponds to and is communicated with the second material guide hole II (4112) of the left guide plate; the left end of a group of heat exchange tubes (43) is respectively matched and communicated with a first guide hole I (4111) of a left guide plate, a second guide hole II (4112) of the left guide plate, a first guide cavity I (4113) of the left guide plate, a second guide cavity II (4114) of the left guide plate, a third guide cavity III (4115) of the left guide plate, a fourth guide cavity IV (4116) of the left guide plate and a fifth guide cavity V (4117) of the left guide plate, and the right end of a group of heat exchange tubes (43) is respectively matched and communicated with a first guide cavity I (4211) of the right guide plate, a second guide cavity II (4212) of the right guide plate, a third guide cavity III (4213) of the right guide plate, a fourth guide cavity IV (4214) of the right guide plate, a fifth guide cavity V (4215) of the right guide plate and a sixth guide cavity VI (4216) of the right guide plate.

4. The shell and tube heat exchanger with the same direction of feeding and discharging as in claim 3, characterized in that the right side surface of the left material guide plate (41) is welded and fixed with the left end surface of the shell and tube (1), and the left side surface of the right material guide plate (42) is welded and fixed with the right end surface of the shell and tube (1).

5. The shell and tube heat exchange device with the same direction as the material inlet and outlet of claim 3, wherein the left end cover (2) is matched and fixed with the left material guide plate (41) through a fastener or a hinge device; the right end cover (3) and the right material guide plate (42) are matched and fixed through a fastener or a hinge device.

6. The shell and tube heat exchange device with the same direction of feeding and discharging as in claim 5, characterized in that when the left end cover (2) is fixed with the left material guide plate (41) through a fastening piece, left end cover screw holes (23) are arranged on the left end cover (2) at intervals at the edge part of the left end cover (2), a left end cover fixing screw (231) is arranged on the left end cover screw hole (23), a left guide plate screw hole (412) is arranged on the edge part of the left material guide plate (41) at a position corresponding to the left end cover screw hole (23), and the left end cover fixing screw (231) is screwed into the left guide plate screw hole (412); when the right end cover (3) is matched and fixed with the right material guide plate (42) through a fastening piece, right end cover screw holes (31) are formed in the right end cover (3) and located at the edge part of the right end cover (3) at intervals, right end cover fixing screws (311) are arranged on the right end cover screw holes (31) in a matched mode, right guide plate screw holes (422) are formed in the edge part of the right material guide plate (42) and corresponding to the right end cover screw holes (31), and the right end cover fixing screws (311) are screwed into the right guide plate screw holes (422).

7. The shell and tube heat exchanger with the same direction of material feeding and discharging as in claim 3, wherein the left ends of the group of heat exchange tubes (43) respectively extend into and are fixed to a left guide plate first guide hole I (4111), a left guide plate second guide hole II (4112), a left guide plate first guide cavity I (4113), a left guide plate second guide cavity II (4114), a left guide plate third guide cavity III (4115), a left guide plate fourth guide cavity IV (4116) and a left guide plate fifth guide cavity V (4117), and the right ends of the group of heat exchange tubes (43) respectively extend into and are fixed to a right guide plate first guide cavity I (4211), a right guide plate second guide cavity II (4212), a right guide plate third guide cavity III (4213), a right guide plate fourth guide cavity IV (4214), a right guide plate fifth guide cavity V (4215) and a right guide plate sixth guide cavity VI (4216).

8. The heat exchange shell and tube device with the same direction as the feeding and discharging function of claim 6, wherein the screw hole (412) of the left guide plate and the screw hole (422) of the right guide plate are blind holes.

9. The shell and tube heat exchanger with cocurrent feeding and discharging according to claim 6, characterized in that the number of the heat exchanging tubes (43) is twelve, the left ends of one heat exchanging tube (43) in the first guiding hole I (4111) and the second guiding hole II (4112) of the left guide plate are inserted and welded, the left ends of two heat exchanging tubes (43) in the first guiding cavity I (4113), the second guiding cavity II (4114), the third guiding cavity III (4115), the fourth guiding cavity IV (4116) and the fifth guiding cavity V (4117) of the left guide plate are inserted and welded; the right guide plate first guide cavity I (4211), the right guide plate second guide cavity II (4212), the right guide plate third guide cavity III (4213), the right guide plate fourth guide cavity IV (4214), the right guide plate fifth guide cavity V (4215) and the right guide plate sixth guide cavity VI (4216) are provided with the right ends of two heat exchange tubes (43) respectively extending into and welded and fixed.

10. The shell-and-tube heat exchanger with cocurrent feeding and discharging according to claim 3, 6 or 9, characterized in that the first guide cavity i (4113) of the left guide plate, the second guide cavity ii (4114) of the left guide plate, the third guide cavity iii (4115) of the left guide plate, the fourth guide cavity iv (4116) of the left guide plate, the fifth guide cavity v (4117) of the left guide plate, the first guide cavity i (4211) of the right guide plate, the second guide cavity ii (4212) of the right guide plate, the third guide cavity iii (4213) of the right guide plate, the fourth guide cavity iv (4214) of the right guide plate, the fifth guide cavity v (4215) of the right guide plate and the sixth guide cavity vi (4216) of the right guide plate are all elliptical in shape.