Search

CN-224215937-U - Deflector for shell-and-tube heat exchanger

CN224215937UCN 224215937 UCN224215937 UCN 224215937UCN-224215937-U

Abstract

The utility model discloses a guide plate for a shell-and-tube heat exchanger, which relates to the technical field of heat exchangers and comprises a shell, wherein a water outlet pipe and a water inlet pipe are respectively arranged at the top end and the bottom end of the shell in a communicated manner, a conveying pipe is arranged in the shell in a communicated manner, a guide plate assembly capable of improving the heat exchange efficiency of the conveying pipe is arranged on the shell, and through holes, arc plates, fins, round holes and other structures are arranged on the guide plate, so that the flow path of a heating medium is optimized, the turbulence degree is increased, the laminar boundary layer is damaged, and the heat transfer efficiency is improved. The staggered design of the guide plates and the grooves enables the heating medium to be uniformly distributed around the conveying pipe, thereby avoiding fluid concentration and improving heat exchange uniformity.

Inventors

  • ZHU QIN
  • LU LIQUAN
  • SONG CHUN

Assignees

  • 江苏联锦特种设备制造有限公司

Dates

Publication Date
20260508
Application Date
20250612

Claims (8)

  1. 1. The guide plate for the shell-and-tube heat exchanger comprises a shell (10) and a conveying assembly (11), and is characterized by further comprising a guide plate assembly (20) capable of improving heat exchange efficiency, wherein the guide plate assembly is assembled on the shell (10); The guide plate assembly (20) comprises a plurality of guide plates (21) fixedly installed inside the shell (10), a plurality of through holes (22) are formed in the guide plates (21), a plurality of arc plates (23) are fixedly connected in grooves of the guide plates (21), fins (24) are fixedly connected between the guide plates (21), and round holes (25) are formed in the fins (24) in a communicating mode.
  2. 2. A deflector for a shell and tube heat exchanger according to claim 1, wherein the delivery assembly (11) comprises a water outlet pipe (111) and a water inlet pipe (112) which are installed at the top and bottom ends of the housing (10) in communication, and a delivery pipe (113) is installed inside the housing (10) in communication.
  3. 3. The deflector for a shell-and-tube heat exchanger according to claim 2, wherein the conveying pipes (113) are distributed inside the shell (10) in a serpentine shape, a metal-based diamond coating is arranged on the surface of the conveying pipe (113) inside the shell (10), and the thickness of the conveying pipe is 0.2-0.8 mm.
  4. 4. A baffle for a shell and tube heat exchanger according to claim 2, characterized in that a number of baffles (21) are located between the transport tubes (113), the grooves on the baffles (21) being staggered.
  5. 5. The deflector for a shell-and-tube heat exchanger according to claim 1, wherein the surfaces of the deflector (21) and the fins (24) are provided with a metal-based graphene composite coating, and the thickness is 0.01-0.1 mm.
  6. 6. The deflector for shell-and-tube heat exchangers according to claim 1, wherein a plurality of arc plates (23) are arranged in a staggered manner, and diamond-like coating layers are arranged on the surfaces of the arc plates (23) and have a thickness of 0.01-0.05 mm.
  7. 7. A deflector for shell-and-tube heat exchangers according to claim 1, characterized in that a number of circular holes (25) are arranged equidistant between them, the openings of the circular holes (25) being made smaller from larger ones.
  8. 8. The deflector for a shell-and-tube heat exchanger according to claim 7, wherein the fins (24) are sleeved on the conveying pipe (113), and the fins (24) are equidistantly arranged.

Description

Deflector for shell-and-tube heat exchanger Technical Field The utility model relates to the technical field of heat exchangers, in particular to a guide plate for a shell-and-tube heat exchanger. Background The shell-and-tube heat exchanger is also called shell-and-tube heat exchanger, and is a general heat exchange device, and is mainly composed of shell, tube bundle, tube plate and sealing head. Although the traditional shell-and-tube heat exchanger has wide application in the industrial field, the design of the guide plate often causes uneven fluid flow in the shell-and-tube heat exchanger, which affects the heat exchange efficiency, and short circuit or uneven distribution easily occurs when the heat medium flows in the shell, so that part of heat exchange tubes cannot fully contact the heat medium, and the overall heat exchange efficiency is low. Disclosure of utility model The utility model aims to provide a deflector for a shell-and-tube heat exchanger, which aims to solve the problem that uneven fluid flow in the shell-and-tube heat exchanger is often caused by the design of the deflector. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The guide plate for the shell-and-tube heat exchanger comprises a shell and a conveying assembly, wherein the shell is provided with the guide plate assembly capable of improving heat exchange efficiency; The guide plate assembly comprises a plurality of guide plates fixedly installed inside the shell, a plurality of through holes are formed in the guide plates, a plurality of arc plates are fixedly connected in grooves of the guide plates, fins are fixedly connected between the guide plates, and round holes are formed in the fins in a communicating mode. As a further description of the above technical solution: the conveying assembly comprises a water outlet pipe and a water inlet pipe which are installed at the top end and the bottom end of the shell in a communicating mode, and the conveying pipe is installed in the shell in a communicating mode. As a further description of the above technical solution: The conveying pipe is in serpentine distribution inside the shell, a metal-based diamond coating is arranged on the surface of the conveying pipe inside the shell, and the thickness of the conveying pipe is 0.2-0.8 mm. As a further description of the above technical solution: The guide plates are positioned between the conveying pipes, and grooves on the guide plates are arranged in a staggered mode. As a further description of the above technical solution: The surfaces of the guide plates and the fins are provided with metal-based graphene composite coatings, and the thickness of the metal-based graphene composite coatings is 0.01-0.1 mm. As a further description of the above technical solution: The arc plates are arranged in a staggered mode, diamond-like carbon coatings are arranged on the surfaces of the arc plates, and the thickness of the diamond-like carbon coatings is 0.01-0.05 mm. As a further description of the above technical solution: the round holes are equidistantly arranged, and the openings of the round holes are changed from large to small. As a further description of the above technical solution: the fins are sleeved on the conveying pipe, and the fins are equidistantly arranged. In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows: Through the structures such as the through holes, the arc plates, the fins, the round holes and the like are arranged on the guide plate, the flow path of the heating medium is optimized, the turbulence degree is increased, the laminar boundary layer is damaged, and the heat transfer efficiency is improved. The staggered design of the guide plates and the grooves enables the heating medium to be uniformly distributed around the conveying pipe, thereby avoiding fluid concentration and improving heat exchange uniformity. Drawings FIG. 1 shows an overall schematic provided in accordance with an embodiment of the present utility model; fig. 2 shows a diagram of the positional relationship between a baffle and an arc plate according to an embodiment of the present utility model; FIG. 3 illustrates a cross-sectional view of a fin provided in accordance with an embodiment of the present utility model; FIG. 4 illustrates an effect diagram of a baffle assembly provided in accordance with an embodiment of the present utility model after installation; Fig. 5 shows a diagram of the positional relationship between a baffle and a conveying pipe according to an embodiment of the present utility model. Legend description: 10. The device comprises a shell, a conveying assembly, 111, a water outlet pipe, 112, a water inlet pipe, 113 and a conveying pipe; 20. The air deflector comprises a deflector component, a deflector 21, a deflector 22, a through hole 23, an arc-shaped plate 24, fins 25 and round holes. Detailed Des