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CN-121274737-B - High flux pipe heat exchanger convenient to adjust

CN121274737BCN 121274737 BCN121274737 BCN 121274737BCN-121274737-B

Abstract

The invention discloses a high flux tube heat exchanger convenient to adjust, which belongs to the technical field of heat exchangers and comprises a shell, a first tube box and a second tube box, wherein two tube plates are arranged in the shell, a plurality of tube bundles with grooves are commonly arranged on the two tube plates, a fixed baffle plate is also arranged in the shell, one side close to each fixed baffle plate is provided with a movable baffle plate protection mechanism, and the tube bundles penetrate through the fixed baffle plates and the movable baffle plate protection mechanisms.

Inventors

  • Wang Tingou
  • WANG CHEN
  • GAN YITONG
  • YANG JIANPENG

Assignees

  • 辽宁一重装备制造有限公司

Dates

Publication Date
20260508
Application Date
20251110

Claims (6)

  1. 1. The utility model provides a high flux pipe heat exchanger convenient to adjust, includes casing (1), first tube case (12) and second tube case (13), and two tube cases are located the opening part at casing (1) both ends respectively, and are detachable connection between tube case and the casing (1), be provided with two tube sheets (16) in casing (1), its characterized in that, two be provided with a plurality of tube bundles (11) that have the slot jointly on tube sheet (16), still be provided with in casing (1) and decide baffle (17), decide baffle (17) and regard casing (1) axis as equidistant staggered arrangement, be close to each and decide baffle (17) one side, all be provided with movable baffle protection machanism (2), and tube bundle (11) run through and decide baffle (17) and movable baffle protection machanism (2); The movable baffle plate protection mechanism (2) comprises a first plate (21) and a second plate (22), the first plate (21) and the second plate (22) are connected through screws, a plurality of flow channels (23) are arranged in a cavity formed by the first plate (21) and the second plate (22), a plurality of limit holes (24) with raised edges are formed in each flow channel (23), a tube bundle (11) penetrates through each limit hole (24), an annular cleaning assembly (3) is arranged on each limit hole (24), and the annular cleaning assembly (3) can clean scale layers in the grooves; The annular cleaning assembly (3) comprises a base (31), a rotating cover (32) and an annular top frame (38), wherein round rods of the annular top frame (38) penetrate through round holes in the base (31), a plurality of blades (33) are arranged on the outer wall of the rotating cover (32) in an equidistant surrounding mode, a first annular brush (34), a second annular brush (35) and a third annular brush (36) are sequentially arranged in the base (31), bristles of the first annular brush (34) are of conical structures and are used for cleaning tube bundles (11) with spiral grooves, bristles of the second annular brush (35) are of hook structures and are used for cleaning tube bundles (11) with circular grooves with different sizes, and bristles of the third annular brush (36) are of sheet structures and are used for cleaning the tube bundles (11) with strip grooves; The outer wall of the base (31) is provided with an annular opening (313) and a plurality of limiting grooves (312), the limiting grooves (312) are distributed in an equidistant surrounding manner, one end of each limiting groove (312) is communicated with the annular opening (313), the limiting grooves (312) are connected with limiting blocks (321) in a sliding manner, the limiting blocks (321) are arranged at the lower edge positions of the inner wall of the rotating cover (32), a plurality of carding rods (322) are arranged at the upper edge positions of the inner wall of the rotating cover (32) in an equidistant surrounding manner, the carding rods (322) penetrate through bristles of three annular brushes, a reset spring (39) is sleeved at the annular opening (313), and the limiting blocks (321) can be moved to the annular opening (313) to extrude the reset spring (39); A flow guide part (25) is arranged between every two adjacent annular cleaning assemblies (3), the flow guide part (25) is positioned in a flow channel (23) of the first plate (21), a plurality of drain holes (26) are arranged at the edge position of the first plate (21), the section of each drain hole (26) is in a circular truncated cone structure, and the inner side radius is large and the outer side radius is small; Be provided with shrouding (5) in first pipe case (12), all swing joint has in two through-holes on shrouding (5) and promotes frame (51), and two promote the interface connection on frame (51) all and corresponding movable baffle protection machanism (2), outer wall one side of first pipe case (12) is provided with cylinder (6), the output of cylinder (6) is provided with removes frame (52), and the interface on removing frame (52) is connected with two promotion frame (51) one end.
  2. 2. A high flux tube heat exchanger for facilitating adjustment according to claim 1, wherein the grooves of the outer wall of the tube bundle (11) are helical grooves; and/or the grooves of the outer wall of the tube bundle (11) are circular grooves with different sizes; And/or the grooves on the outer wall of the tube bundle (11) are strip-shaped grooves formed by gaps among the fins.
  3. 3. The high flux tube heat exchanger of claim 1, wherein the outer walls of the first (34), second (35) and third (36) annular brushes are each provided with a clamping block (37), each clamping block (37) is clamped with a clamping groove (311), and the clamping grooves (311) are formed in the annular inner wall of the base (31).
  4. 4. The high-flux tube heat exchanger convenient to adjust according to claim 1, wherein connecting rods (4) are arranged between the movable baffle plate protection mechanisms (2) on the same side, and the connecting rods (4) penetrate through corresponding fixed baffle plates (17).
  5. 5. The high-flux tube heat exchanger for easy adjustment according to claim 1, wherein the first tube box (12) and the second tube box (13) are provided with a first water inlet (121) and a first water outlet (131), respectively.
  6. 6. The high flux tube heat exchanger for easy adjustment according to claim 1, wherein the two sides of the outer wall of the housing (1) are provided with a second water inlet (14) and a second water outlet (15), respectively.

Description

High flux pipe heat exchanger convenient to adjust Technical Field The invention relates to a heat exchange device, in particular to a high-flux tube heat exchanger convenient to adjust, belonging to the technical field of heat exchangers. Background The heat exchanger is a partition wall type heat exchanger with wide application, the basic structure of the heat exchanger is composed of a shell, a tube bundle, a tube plate, an end cover and a baffle plate/supporting plate, the temperature regulation is mainly realized through the heat transfer of two fluids (namely, the liquid in the shell side and the tube side) inside and outside the tube bundle, the heat exchanger is widely applied to the fields of chemical industry, electric power, food, refrigeration and the like, and the core function of the heat exchanger is that the heat is transferred from high-temperature fluid to low-temperature fluid through a heat transfer surface on the premise of not mixing the two fluids, so that the requirements of heating, cooling, condensing, evaporating and the like in the process are met. The high-flux tube heat exchanger is high-efficiency heat exchange equipment based on high-flux tube (tube bundle) technology, is mainly used for strengthening the heat transfer process in or out of a tube, and has the core advantages of greatly increasing the heat transfer area and enhancing the fluid turbulence degree through special tube surface structure design (such as a porous layer, grooves or fins and the like), thereby obviously improving the heat exchange efficiency, and reducing the equipment volume or improving the heat load compared with the traditional heat exchanger. The surface of the high flux pipe is composed of a groove structure, the grooves improve heat exchange efficiency, but the design of the grooves also greatly improves the probability of forming a fluid retention area, so that the valley bottom of the grooves becomes a particle collecting point, scale is easy to form, scale in the grooves can form a thermal resistance layer, the heat transfer coefficient is reduced, the scale in the grooves is mainly treated in a periodical disassembly cleaning mode at present, the cleaning period in the industry is generally about 3 months, the scale is easy to harden (such as calcium magnesium scale crystallization) if the cleaning period is more than three months, the cleaning difficulty is increased, the dosage of cleaning agent is required to be increased (such as the dosage of citric acid is increased by 40%), the labor cost is also increased, meanwhile, in the cleaning process, if the strength control is poor, the hardened position is also easy to be damaged, the slit environment under the scale is easy to form a 'concentration cell' (such as poor oxygen concentration and poor ion concentration), the service life of the pipe is shortened, especially the tube is easy to form a 'dead zone' at the position of some grooves or the tube bundles (such as slow axial flow velocity of media) near the inner wall of the shell, and the hardening time is sometimes shortened, and the fluid resistance is increased. Disclosure of Invention The technical scheme of the invention aims at the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, belongs to a heat exchange device, and mainly provides a high-flux tube heat exchanger which is convenient to adjust, and is used for solving the technical problem that the surface grooves of the high-flux tube provided in the prior art are easy to form a fluid retention area, so that the bottoms of the grooves become particle collecting points to form scale, and the scale forms a thermal resistance layer, thereby reducing the heat transfer coefficient. The technical scheme adopted for solving the technical problems is as follows: The utility model provides a high flux pipe heat exchanger convenient to adjust, includes casing, first tube case and second tube case, and two tube cases are located the opening part at casing both ends respectively, and are detachable connection between tube case and the casing, be provided with two tube sheets in the casing, two be provided with a plurality of tube bundles that have the slot on the tube sheet jointly, still be provided with the fixed baffle in the casing, the equidistant staggered arrangement of fixed baffle on the basis of the casing axis, be close to each fixed baffle one side, all be provided with movable baffle protection mechanism, and the tube bundle runs through fixed baffle and movable baffle protection mechanism; The movable baffle plate protection mechanism comprises a first plate and a second plate, the first plate and the second plate are connected through screws, a plurality of flow passages are arranged in a cavity formed by the first plate and the second plate, a plurality of limit holes with raised edges are formed in each flow passage, a tube bundle penetrates through e