Novel heat exchanger

Abstract

The utility model discloses a novel heat exchanger, which belongs to the field of heat exchanger manufacture and comprises a plurality of baffle plates, connecting holes are arranged on the baffle plates, pipe spacers are arranged at two ends of each connecting hole, and the outer diameter of each pipe spacer is larger than the diameter of each connecting hole. A connecting piece is arranged in the connecting hole, and the two ends of the connecting piece are detachably connected with the pipe spacers at the two ends of the connecting hole respectively. By means of the structure, a pull rod is omitted, the baffle plates can be locked and fixed only through the connecting pieces between the pipe spacers, the assembly efficiency and flexibility of the pipe bundle are improved, and the assembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of heat exchanger manufacturing, in particular to a novel heat exchanger. Background Art

[0002] In the field of heat exchanger technology, the heat exchanger tube bundle is generally fixed in the following way: tie rods and distance tubes work together to reinforce the entire heat exchange tube bundle. Baffles are provided at intervals on the tie rods, and distance tubes are provided on the tie rods between the baffles. The tie rods and distance tubes work together to reinforce the baffles, and the entire tube bundle is thereby reinforced.

[0003] However, when assembling the tube bundle, it is necessary to install the baffles one by one from one end, install all the baffles and tie rods, and then tighten the tie rods. After tightening, the heat exchange tubes are inserted into each baffle to finally complete the tube bundle assembly.

[0004] However, installing the baffles one by one from one end takes a long time and is inefficient. Therefore, assembling the heat exchange tube bundle has always been a difficult problem during production or on-site maintenance.

[0005] In view of the above problems, the present invention designs and manufactures a new type of heat exchanger to overcome the above defects. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides a new type of heat exchanger, which eliminates the need for pull rods and can lock and fix the baffle only through the connectors between the spacing tubes. It also improves the assembly efficiency and flexibility of the tube bundle and reduces the difficulty of assembly.

[0007] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a new type of heat exchanger includes a plurality of baffles, each baffle is provided with a connecting hole, and a distance tube is provided at both ends of the connecting hole, and the outer diameter of the distance tube is larger than the diameter of the connecting hole;

[0008] A connecting piece is provided in the connecting hole, and two ends of the connecting piece are detachably connected to the distance pipes at the two ends of the connecting hole.

[0009] Preferably, positioning holes are provided at both ends of the connecting hole, and the positioning holes are slightly larger than the outer diameter of the distance tube.

[0010] Preferably, the side wall of one end of the distance tube is provided with at least one through hole, the connecting piece includes a connecting portion, and the side wall of the connecting portion is provided with at least one elastic pin, and the elastic pin of the connecting portion can cooperate with the through hole on the side wall of the end of the distance tube.

[0011] Preferably, the connecting portion is configured as a cylindrical structure, and the side wall of the cylindrical structure has at least one channel uniformly distributed around the circumference, and the elastic pin can elastically expand and contract within the channel.

[0012] Preferably, a connecting block is fixed in the cylindrical structure, and an elastic element is provided between the connecting block and the elastic pin. The elastic element can make the elastic pin protrude from the side wall of the cylindrical structure, and compressing the elastic element can make the elastic pin enter the channel.

[0013] Preferably, the elastic pin is provided with a boss at one end close to the connecting block, the size of the boss is larger than the size of the channel, and the boss can limit the size of the elastic pin extending out of the side wall of the cylindrical structure;

[0014] And / or, the end of the elastic pin is configured as a round head or a conical head.

[0015] Preferably, a vertical hook guide groove is provided on the side wall of the other end of the distance tube, and the vertical hook guide groove includes a vertical groove and a hook groove, and the vertical groove is connected to the end of the distance tube and is parallel to the axial direction of the distance tube;

[0016] A rotating portion is provided at one end of the connecting portion, and a positioning column is provided on a side wall of the rotating portion. The positioning column can enter the hook groove through the vertical groove.

[0017] Preferably, the rotating part and the connecting block are connected via an elastic member.

[0018] Preferably, the hook groove includes a connecting groove and a short groove, one end of the connecting groove is connected to the vertical groove, and the other end of the connecting groove is connected to the short groove, and the short groove extends toward the adjacent end of the distance pipe.

[0019] Preferably, the baffles are divided into at least two groups, and the multiple groups of baffles are evenly distributed around the circumference of the heat exchanger, and each group of baffles is provided with at least three baffles along the axial direction of the heat exchanger;

[0020] After each set of baffles is assembled through the distance tubes and connectors, two adjacent sets of baffles are assembled through the distance tubes and connectors of corresponding lengths.

[0021] The benefits of this utility model are:

[0022] 1. The utility model does not require a pull rod when installing the distance tube, which reduces the material cost compared with the traditional heat exchanger. In addition, since two axially adjacent distance tubes are fastened to both sides of the baffle through the connecting piece, the installation of the distance tube is more independent and convenient, and the assembly efficiency can also be improved.

[0023] 2. The utility model can greatly improve the assembly efficiency when facing the group assembly of multiple groups of baffles. Since the multiple groups of baffles are first assembled in groups and then assembled in multiple groups, compared with the traditional method of installing all baffles one by one from one end, the assembly method of this scheme improves the assembly flexibility, reduces the assembly difficulty, reduces the assembly time, and improves the assembly efficiency.

[0024] 3. The connector of the utility model adopts an elastic pin to connect with the through hole of the distance tube, which not only can quickly realize the coordination between the connector and the distance tube, but also the compression of the elastic pin does not affect the connection hole of the connector passing through the baffle; in addition, the connector adopts a positioning column set on the rotating part to cooperate with the vertical hook guide groove on the distance tube, which can also meet the needs of rapid docking. Combined with the elastic part between the rotating part and the connecting block, the rotating part and the connecting part can be tightened with the help of the elastic part, thereby fastening the two distance tubes to the baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the assembly of distance tubes, baffles and connectors in a new type of heat exchanger;

[0026] Figure 2 This is a schematic diagram of the utility model when the connecting portion and the rotating portion are separated;

[0027] Figure 3 This is a schematic diagram of the utility model when the connecting portion and the rotating portion are close together;

[0028] Figure 4 A schematic diagram of a connector according to the present invention;

[0029] Figure 5 This is a schematic diagram of the distance pipe of the utility model;

[0030] Figure 6 This is a schematic diagram of the cooperation between the connector and the distance pipe of the utility model;

[0031] Figure 7 This is a schematic diagram of assembling the heat exchange tubes of the utility model on multiple groups of baffles;

[0032] Figure 8 Schematic diagram of the elastic pin of the utility model.

[0033] In the figure: 1-baffle, 2-distance tube, 3-connecting piece, 4-heat exchange tube, 21-vertical groove, 22-connecting groove, 23-short groove, 24-through hole, 31-connecting part, 32-rotating part, 33-elastic pin, 34-elastic element, 35-connecting block, 36-positioning column, 37-elastic piece, 38-boss. DETAILED DESCRIPTION

[0034] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0035] like Figures 1 to 8 As shown, a novel heat exchanger includes a plurality of baffles 1, each of which is provided with a connection hole, and a distance tube 2 is provided at both ends of the connection hole. The outer diameter of the distance tube 2 is larger than the diameter of the connection hole. The two ends of the distance tube 2 are abutted against the baffle 1 to space adjacent baffles 1.

[0036] A connecting piece 3 is provided in the connecting hole, and both ends of the connecting piece 3 are detachably connected to the distance pipes 2 at both ends of the connecting hole. Compared with the distance structure of the traditional heat exchanger baffle 1, the material cost is reduced because the pull rod is eliminated, and the two axially adjacent distance pipes 2 are fastened to both sides of the baffle 1 by the connecting piece 3. The installation of the distance pipes 2 is more independent and convenient, and the assembly efficiency can also be improved.

[0037] Positioning holes are preferably provided at both ends of the connecting hole. The positioning holes are slightly larger than the outer diameter of the distance tube 2 to facilitate pre-positioning of the distance tube 2 and further facilitate the cooperation between the connecting piece 3 and the distance tube 2.

[0038] In order to further improve the assembly efficiency between the connecting piece 3 and the distance tube 2, the side wall of the distance tube 2 at one end of the utility model is provided with at least one through hole 24, preferably two; the connecting piece 3 specifically includes a connecting portion 31, and at least one elastic pin 33 is provided on the side wall of the connecting portion 31, preferably two elastic pins 33 are provided corresponding to the two through holes 24, and the elastic pin 33 is located close to one end of the connecting piece 3, and the elastic pin 33 of the connecting portion 31 can cooperate with the through hole 24 on the side wall of the end of the distance tube 2.

[0039] The connecting portion 31 of the present invention is configured as a cylindrical structure, and a channel is evenly distributed on the side wall of the cylindrical structure at least around the circumference. The elastic pin 33 can elastically expand and contract in the channel, and the end of the elastic pin 33 is preferably configured as a round head or a conical head to facilitate the cooperation between the elastic pin 33 and the through hole 24 on the distance tube 2.

[0040] A connecting block 35 is preferably fixed in the cylindrical structure, and an elastic element 34 is provided between the connecting block 35 and the elastic pin 33. The elastic element 34 enables the elastic pin 33 to protrude from the side wall of the cylindrical structure, so that the elastic pin 33 can cooperate with the through hole 24 on the distance tube 2. When the elastic element 34 is compressed, the elastic pin 33 can enter the channel, thereby preventing the elastic pin 33 from obstructing the connector 3 from entering the distance tube 2.

[0041] The elastic pin 33 is preferably provided with a boss 38 at one end close to the connecting block 35. The size of the boss 38 is larger than the size of the channel. The boss 38 can limit the size of the elastic pin 33 extending out of the side wall of the cylindrical structure.

[0042] A vertical hook guide groove is provided on the side wall of the other end of the distance tube 2 of the present invention. The vertical hook guide groove includes a vertical groove 21 and a hook groove. The vertical groove 21 is connected to the end of the distance tube 2 and is parallel to the axial direction of the distance tube 2; a rotating part 32 is provided at one end of the connecting part 31, and a positioning column 36 is provided on the side wall of the rotating part 32. The positioning column 36 can enter the hook groove through the vertical groove 21.

[0043] The rotating part 32 and the connecting block 35 are preferably connected by an elastic member 37, and the elastic member 37 can be a spring. Specifically, when the connecting member 3 of the utility model is not assembled with the distance tube 2, due to the tensioning force of the elastic member 37, the connecting part 31 and the rotating part 32 are close together. When the connecting member 3 is assembled with the distance tube 2, the connecting part 31 and the rotating part 32 will be separated, and the elastic member 37 will generate tensioning force to tighten the rotating part 32 and the connecting part 31, thereby fastening the two distance tubes 2 to the deflector 1.

[0044] The above-mentioned hook groove preferably includes a connecting groove 22 and a short groove 23. One end of the connecting groove 22 is connected to the vertical groove 21, and the other end of the connecting groove 22 is connected to the short groove 23. The short groove 23 extends toward the end of the adjacent distance tube 2. The positioning column 36 cooperates with the vertical hook guide groove on the distance tube 2 and finally enters the short groove 23 to achieve locking of the distance tube 2 and the rotating part 32.

[0045] The baffles 1 of the present invention are divided into at least two groups, and the multiple groups of baffles 1 are evenly distributed around the circumference of the heat exchanger. Each group of baffles 1 is provided with at least three baffles 1 along the axial direction of the heat exchanger. After each group of baffles 1 is assembled through the distance tubes 2 and the connectors 3, the two adjacent groups of baffles 1 are assembled through the distance tubes 2 and the connectors 3 of corresponding lengths.

[0046] Compared with the installation of the traditional heat exchanger distance tube 2 and the baffle 1, that is, installing the baffle 1 one by one starting from one end, the utility model can greatly improve the assembly efficiency when facing the group assembly of multiple groups of baffles 1. Since the multiple groups of baffles 1 are first assembled in groups and then assembled in multiple groups, the assembly flexibility is improved, the assembly difficulty is reduced, the assembly time is reduced, and the assembly efficiency is improved.

[0047] For example, in this embodiment, there are two groups of baffles 1, and the two groups of baffles 1 are arranged up and down. Each group of baffles 1 specifically includes four baffles 1. According to the traditional installation method, it is necessary to install the spacing tubes 2 and the pull rods one by one on the eight baffles 1 from one end. After tightening the pull rods, the heat exchange tubes 4 are inserted into each baffle 1. However, using this solution, two groups of operators can be arranged to install each group of baffles 1 (i.e., the four baffles 1 on the top and the four baffles 1 on the bottom) at the same time. After the spacing tubes 2 are installed on the four baffles 1 on the top, the other group of operators also installs the spacing tubes 2 in the four baffles 1 on the bottom. Then assemble the eight baffles 1 on the top and bottom, install the spacing tubes 2 of corresponding lengths on the two adjacent groups of baffles 1 on the top and bottom, and finally install the heat exchange tubes 4.

[0048] Similarly, for a large heat exchanger, the baffles 1 can be divided into multiple groups. For example, if there are 20 baffles 1, they can be divided into four groups (two groups of baffles 1 on the top and two groups of baffles 1 on the bottom), each group containing five baffles 1. After installing the spacer tubes 2 on each of the four groups of baffles 1, they can be assembled. Finally, the heat exchange tubes 4 are installed.

[0049] The assembly process of the distance pipe 2, the baffle 1 and the connector 3 of the utility model is as follows:

[0050] Place the positioning column 36 of the connecting piece 3 into one end of the vertical groove 21 of the distance tube 2, and push the connecting piece 3 into the distance tube 2. During this process, the positioning column 36 moves along the vertical groove 21 (at this time, the connecting part 31 and the rotating part 32 of the connecting piece 3 are close together).

[0051] Insert the connector 3 connected with the distance tube 2 into the connecting hole of the baffle 1, and insert another distance tube 2 on the other side of the connecting hole. Because there are positioning holes at both ends of the connecting hole, the two positioning holes can form a preliminary positioning for the two distance tubes 2.

[0052] Push the positioning post 36 toward the baffle 1, and the connector 3, pushed by the positioning post 36, moves toward the other distance tube 2 until the elastic pin 33 passes through the through hole 24 of the other distance tube 2. At this point, the positioning post 36 is located between the baffle 1 and the connecting groove 22. Pull the positioning post 36 away from the baffle 1 until the operating rod reaches the connecting groove 22. Rotate the distance tube 2 so that the positioning post 36 passes from the vertical groove 21 through the connecting groove 22 and into the short groove 23, thus locking the rotating portion 32 and preventing it from slipping out of the distance tube 2.

[0053] At this time, the connecting portion 31 and the rotating portion 32 are separated from each other, and the elastic member 37 is stretched so that the connecting portion 31 and the rotating portion 32 have a force to move closer to each other, thereby tightening the two distance tubes 2 and fastening them to the baffle 1.

[0054] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention. In addition, it should be understood that after reading the technical content of the present invention, those skilled in the art may make various changes, modifications and / or variations to the present invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims of this application.

Claims

1. A new type of heat exchanger, characterized in that: It comprises a plurality of baffles (1), each baffle (1) being provided with a connecting hole, and having a distance tube (2) at both ends of the connecting hole, wherein the outer diameter of the distance tube (2) is larger than the diameter of the connecting hole; A connecting piece (3) is provided in the connecting hole, and both ends of the connecting piece (3) are detachably connected to the distance tubes (2) at both ends of the connecting hole.

2. A novel heat exchanger according to claim 1, characterized in that: Positioning holes are provided at both ends of the connection hole, and the positioning holes are slightly larger than the outer diameter of the distance tube (2).

3. A novel heat exchanger according to claim 1, characterized in that: At least one through hole (24) is provided on the side wall of one end of the distance tube (2); the connecting piece (3) comprises a connecting portion (31); at least one elastic pin (33) is provided on the side wall of the connecting portion (31); the elastic pin (33) of the connecting portion (31) is capable of cooperating with the through hole (24) on the side wall of the end of the distance tube (2).

4. A novel heat exchanger according to claim 3, characterized in that: The connecting portion (31) is configured as a cylindrical structure, and a channel is evenly distributed on the side wall of the cylindrical structure at least around the circumference, and the elastic pin (33) can elastically expand and contract within the channel.

5. A novel heat exchanger according to claim 4, characterized in that: A connecting block (35) is fixed in the cylindrical structure, and an elastic element (34) is provided between the connecting block (35) and the elastic pin (33). The elastic element (34) can make the elastic pin (33) protrude from the side wall of the cylindrical structure, and compressing the elastic element (34) can make the elastic pin (33) enter the channel.

6. A novel heat exchanger according to claim 5, characterized in that: The elastic pin (33) is provided with a boss (38) at one end close to the connecting block (35), the size of the boss (38) being larger than the size of the channel, and the boss (38) being able to limit the size of the elastic pin (33) extending out of the side wall of the cylindrical structure; And / or, the end of the elastic pin (33) is configured as a round head or a conical head.

7. A novel heat exchanger according to claim 3, characterized in that: A vertical hook guide groove is provided on the side wall of the other end of the distance tube (2), the vertical hook guide groove comprising a vertical groove (21) and a hook groove, the vertical groove (21) being in communication with the end of the distance tube (2) and being parallel to the axial direction of the distance tube (2); A rotating portion (32) is provided at one end of the connecting portion (31), and a positioning column (36) is provided on a side wall of the rotating portion (32). The positioning column (36) can enter the hook groove through the vertical groove (21).

8. A novel heat exchanger according to claim 7, characterized in that: The rotating part (32) and the connecting block (35) are connected via an elastic member (37).

9. The novel heat exchanger according to claim 7, characterized in that: The hook groove comprises a connecting groove (22) and a short groove (23); one end of the connecting groove (22) is communicated with the vertical groove (21); the other end of the connecting groove (22) is communicated with the short groove (23); and the short groove (23) extends toward the end of the adjacent distance tube (2).

10. The novel heat exchanger according to claim 1, characterized in that: The baffles (1) are divided into at least two groups, the multiple groups of baffles (1) are evenly distributed around the circumference of the heat exchanger, and each group of baffles (1) is provided with at least three baffles (1) along the axial direction of the heat exchanger; After each set of baffles (1) is assembled through the distance tubes (2) and the connectors (3), two adjacent sets of baffles (1) are assembled through the distance tubes (2) and connectors (3) of corresponding lengths.

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