CN212902780U

CN212902780U - Anti-leakage double-tube-plate heat exchanger with disturbance baffle plate

Info

Publication number: CN212902780U
Application number: CN202021604483.3U
Authority: CN
Inventors: 赖红; 赖振威; 王博
Original assignee: Pingxiang Kangyu New Energy Technology Co ltd
Current assignee: Pingxiang Kangyu New Energy Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-04-06
Anticipated expiration: 2030-08-05

Abstract

The utility model discloses an antiseep double tube sheet heat exchanger with disturbance baffling board, it includes the shell side, be equipped with the heat exchange tube in the shell side and the crisscross baffling board of mutual interval, the baffling board both sides are equipped with if disturb the movable sheet respectively the interval, the shell side outside is equipped with shell side fluid import and shell side fluid export respectively, the both ends of shell side are connected with the pipe case respectively, be equipped with tube side fluid import and tube side fluid export on the pipe case at both ends respectively, be equipped with outer tube sheet between shell side and the pipe case, interior tube sheet, be equipped with the sealing ring on the outer tube sheet and between the pipe case, be equipped with the welding groove on the outer tube sheet and between the shell side, outer tube sheet, be equipped with respectively on interior tube sheet and the baffling board and hug closely a plurality of corresponding tube hole with the heat exchange tube, form the isolation packing room between outer tube. The utility model discloses save equipment fixing time, prevented that the seepage from mixing between the fluid, improved heat transfer effect greatly.

Description

Anti-leakage double-tube-plate heat exchanger with disturbance baffle plate

Technical Field

The utility model relates to a heat exchanger technical field, in particular to antiseep double tube plate heat exchanger with disturbance baffling board.

Background

Heat exchangers are widely used in industrial production such as chemical, petrochemical, petroleum refining and the like. In the construction of general chemical engineering, the heat exchanger accounts for about 11% of the total investment. In the atmospheric and vacuum distillation unit of oil refinery, the heat exchanger accounts for about 20% of total investment. If the heat exchanger accounts for about 40% in petroleum and chemical equipment according to the weight of process equipment, various novel heat exchangers continuously appear along with the rapid development of chemical industry, petrochemical industry and oil refining industry, the structures of some traditional heat exchangers are continuously improved and updated, the development trend of the heat exchanger in future is to continuously increase compactness and interchangeability, continuously reduce material consumption, improve heat transfer efficiency and various specific characteristics and improve the convenience of operation and maintenance, the types of the heat exchangers are various, the classification methods are different, and the heat exchangers are divided into heaters, coolers, condensers, evaporators, reboilers and the like according to the purposes. The double-tube plate heat exchanger is mainly of a dividing wall type heat exchanger and also is the most commonly applied heat exchange equipment, the development of the double-tube plate heat exchanger is early, design data and technical data are complete, and at present, serial standard products are provided in many countries. Although the heat exchanger is not as good as some novel heat exchangers in the aspects of heat exchange efficiency, compact parts, material consumption and the like, the heat exchanger has the advantages of simple structure, firmness, durability, strong adaptability, larger operation elasticity, lower cost and the like, so the heat exchanger is still the most widely applied heat exchange equipment in the industries of chemical industry, petrochemical industry, petroleum refining and the like and is also the main type of various heat exchangers, but the existing double-tube plate heat exchanger has the defects of poor sealing performance, easy leakage and safety accidents, and the effect of improving heat transfer by the baffle plate in the shell pass is not good.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the not enough of existence among the above-mentioned prior art heat exchanger, provide a rational in infrastructure, sealed effectual, difficult emergence is leaked, the double tube plate heat exchanger that the heat transfer effect improves greatly.

The utility model provides an above-mentioned technical problem's technical scheme as follows: an anti-leakage double-tube plate heat exchanger with a disturbance baffle plate comprises a shell pass, wherein a plurality of parallel heat exchange tubes and baffle plates which are staggered with each other are arranged in the shell pass, a plurality of interference moving plates are arranged on two sides of each baffle plate at intervals, a shell pass fluid inlet and a shell pass fluid outlet are arranged on the outer side of the shell pass respectively, two ends of the shell pass are connected with tube boxes respectively, a tube pass fluid inlet and a tube pass fluid outlet are arranged on the tube boxes at the two ends respectively, an outer tube plate and an inner tube plate are arranged between the shell pass and the tube boxes, a sealing ring is arranged between the outer tube plate and the tube boxes, a welding groove is arranged between the outer tube plate and the shell pass, a plurality of tube holes which are tightly attached to and correspond to the heat exchange tubes are arranged on the outer tube plate, an isolation packing chamber is formed between the outer tube plate.

Further, the cross section of the disturbance piece is arc-shaped.

The utility model has the advantages that: compared with the prior art, 1, the sealed isolation packing chamber and the seepage outlet are arranged between the outer tube plate and the inner tube plate, and the sealing rings and the welding grooves are respectively arranged at the joints of the outer tube plate, the tube box and the shell pass, so that the equipment installation time is saved, and the shell pass fluid and the tube pass fluid can be prevented from mutually leaking and mixing; 2. arc-shaped disturbance pieces in opposite directions are arranged on the baffle plate at intervals, so that the contact time and the contact area of fluid and the heat exchange tube in a shell pass are increased, and the heat transfer effect is greatly improved.

Drawings

FIG. 1 is a schematic main sectional structure of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

FIG. 3 is a schematic view of the cross-sectional structure B-B of FIG. 1;

fig. 4 is an enlarged schematic view at X-X in fig. 1.

In the figure, 1, a shell side 2, a baffle plate 3, a heat exchange tube 4, an isolation packing chamber 5, a packing feeding port 6, a tube side fluid outlet 7, a fastening nut 8, a shell side fluid inlet 9, a base 10, an inner tube plate 11, a seepage discharge port 12, an outer tube plate 13, a tube box 14, a tube side fluid inlet 15, a sealing ring 16, a welding groove 17, a shell side fluid outlet 18 and a disturbing sheet.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings.

As shown in the figure, the anti-leakage double-tube-plate heat exchanger with the disturbance baffle plate comprises a base 9 and a shell side 1, wherein a plurality of parallel heat exchange tubes 3 and baffle plates 2 which are staggered at intervals are arranged in the shell side, a plurality of interference moving plates 18 are respectively arranged at two sides of the baffle plate at intervals, in order to obtain a better disturbance effect of fluid in the shell side, the disturbance plates and the baffle plates can form an inclined included angle of 5-15 degrees, a plurality of layers of disturbance plates can be arranged between tube holes from the outer side to the inner side of the baffle plates, the cross sections of the disturbance plates are arc-shaped (shown as B-B in figure 3), the directions of the disturbance plates on the baffle plates at the upper side and the lower side are opposite, a shell side fluid inlet 8 and a shell side fluid outlet 17 are respectively arranged on the outer side of the shell side, two ends of the shell side are respectively connected with tube boxes 13, and tube side fluid inlets 14 and tube side fluid outlets 6 (the tube side fluid inlets and, an outer pipe plate 12 and an inner pipe plate 10 are arranged between the shell pass and the pipe box, a sealing ring 15 is arranged between the outer pipe plate and the pipe box, a welding groove 16 is arranged between the outer pipe plate and the shell pass, a plurality of pipe holes (holes passing through the heat exchange pipes) which are tightly attached to the heat exchange pipes are respectively arranged on the outer pipe plate, the inner pipe plate and the baffle plate, an isolation packing chamber 4 is formed between the outer pipe plate and the inner pipe plate, foam packing is placed in the isolation packing chamber, the foam packing has the characteristics of fast heat transfer and good absorption, the upper part of the isolation packing chamber is connected with a packing inlet 5, and the lower.

During installation, a heat exchange tube in a shell pass penetrates into corresponding tube holes in an inner tube plate and an outer tube plate respectively, liquid bag expansion and mechanical expansion are firstly carried out on the heat exchange tube until the heat exchange tube and the tube hole in the inner tube plate are expanded and sealed, then the contact part of the heat exchange tube and the tube hole in the outer tube plate is welded, the heat exchange tube and the outer tube plate are welded, sealed and fixed in a welding way, after welding is finished, the heat exchange tube is expanded mechanically until the heat exchange tube and the tube hole in the outer tube plate are expanded and sealed, the connection part of the tube hole of the inner tube plate and the tube hole of the outer tube plate and the heat exchange tube is subjected to leak detection so as to continue to be expanded and welded, then a welding groove in the contact part of the outer tube plate and the tube box is welded, a sealing ring is added to seal the contact part of the outer tube plate and.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the specific embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. An antiseep double-tube plate heat exchanger with a disturbance baffle plate is characterized in that: the heat exchanger comprises a shell pass (1), wherein a plurality of parallel heat exchange tubes (3) and baffle plates (2) which are staggered at intervals are arranged in the shell pass, a plurality of interference moving blades (18) are arranged at intervals on two sides of each baffle plate respectively, a shell pass fluid inlet (8) and a shell pass fluid outlet (17) are arranged on the outer side of the shell pass respectively, tube boxes (13) are connected with two ends of the shell pass respectively, tube pass fluid inlets (14) and tube pass fluid outlets (6) are arranged on the tube boxes at two ends respectively, an outer tube plate (12) and an inner tube plate (10) are arranged between the shell pass and the tube boxes, a sealing ring (15) is arranged at the contact position between the outer tube plate and the tube boxes, a welding groove (16) is arranged at the contact position between the outer tube plate and the shell pass, a plurality of tube holes which are tightly attached to and correspond to the heat exchange, the upper part of the isolated packing chamber is connected with a packing feeding port (5), and the lower part is connected with a seepage discharge port (11).

2. A leak-proof double tube sheet heat exchanger with turbulating baffles as claimed in claim 1, wherein: the cross section of the disturbing sheet (18) is arc-shaped.