CN-224230789-U - Braze welding type double-layer tube type heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a brazed double-layer tube type heat exchanger which can improve the stability of the overall heat exchange performance; including outer tube, reposition of redundant personnel cover, baffle and heat exchange inner tube, be provided with the baffle between outer tube and the reposition of redundant personnel cover, outer tube, reposition of redundant personnel cover and baffle fastening connection, baffle fixed mounting is on the baffle, the baffle is divided into two sets of cavities with reposition of redundant personnel cover internal partition, the intercommunication is provided with a plurality of groups heat exchange inner tube on the baffle, every group heat exchange inner tube's inlet sets up in the baffle upside, heat exchange inner tube's liquid outlet setting is in the baffle downside.

Inventors

• WANG ZHENZHENG
• LI WEI
• XUE SONG
• SHI ZHENGPING

Assignees

• 风凯换热器制造(常州)有限公司

Dates

Publication Date

20260512

Application Date

20250804

Claims (8)

1. 1. The utility model provides a double-deck tubular heat exchanger of brazing, its characterized in that, includes outer tube, reposition of redundant personnel cover, baffle and heat exchange inner tube, be provided with the baffle between outer tube and the reposition of redundant personnel cover, outer tube, reposition of redundant personnel cover and baffle fastening connection, baffle fixed mounting is on the baffle, baffle will reposition of redundant personnel cover internal partition is two sets of cavities, the intercommunication is provided with a plurality of groups heat exchange inner tube on the baffle, every group the inlet setting of heat exchange inner tube is in the baffle upside, and the liquid outlet setting of heat exchange inner tube is in the baffle downside.
2. 2. The brazed double-layer tube heat exchanger of claim 1, wherein a plurality of groups of reinforcing hanging plates are arranged on the upper side inside the outer tube, the reinforcing hanging plates are fixedly connected with the inner side wall of the outer tube, upper reinforcing rods are arranged on the reinforcing hanging plates in a penetrating mode, the upper reinforcing rods are fixedly connected with the baffle plates, a plurality of groups of reinforcing supporting plates are arranged on the lower side inside the outer tube, the reinforcing hanging plates are fixedly connected with the inner side wall of the outer tube, lower reinforcing rods are arranged on the reinforcing supporting plates in a penetrating mode, and the lower reinforcing rods are fixedly connected with the baffle plates.
3. 3. The brazed double-layer tube heat exchanger of claim 2, wherein the reinforcing support plate is provided with a temperature probe in a penetrating manner for testing the internal temperature of the outer tube.
4. 4. The brazed double-layer tube heat exchanger of claim 1, wherein the bottom end of the outer tube is provided with a waste discharge tube in a communicated manner, and a sealing plug is arranged on a sealing cover of the waste discharge tube.
5. 5. A brazed double-layer tube heat exchanger according to claim 1, wherein the bottom end of the outer tube is provided with two sets of arc-shaped support plates, and each set of arc-shaped support plates is provided with a set of support frames.
6. 6. A brazed double tube heat exchanger according to claim 1, wherein the outer tube is provided at its top end with two sets of lugs.
7. 7. A brazed double-layer tube heat exchanger according to claim 1, wherein the outer side wall of the outer tube is provided with a logo plate.
8. 8. A brazed double tube heat exchanger according to claim 4, wherein the waste pipe and the outer pipe are fixedly connected by brazing.

Description

Braze welding type double-layer tube type heat exchanger Technical Field The utility model relates to the technical field of heat exchangers, in particular to a brazed double-layer tube type heat exchanger. Background In the industrial production and energy conversion process, the heat exchanger is used as heat exchange equipment, and the performance and the efficiency of the heat exchanger are directly related to the operation effect and the energy consumption level of the whole system. The traditional heat exchanger has various structures, but the problems of low heat exchange efficiency, uneven fluid distribution, high maintenance cost and the like generally exist. The traditional shell-and-tube heat exchanger has the advantages of simple structure and easy manufacture, but often has the problems of low heat transfer coefficient, difficult cleaning and the like when treating high-viscosity, easy-scaling or corrosive fluid. The plate heat exchanger has higher heat exchange efficiency, but has limited pressure bearing capacity, and the sealing performance is easily affected by fluid properties, so that the application range is limited. In view of the above problems, a double-tube heat exchanger is attracting attention as a new and effective heat exchange device. However, the conventional double-layer tube heat exchanger still has certain defects in terms of fluid distribution, mixing and heat transfer uniformity, and particularly, when the working conditions of high flow speed and high flow rate are treated, local overheating or supercooling phenomenon is easy to occur, so that the overall heat exchange performance is influenced. Disclosure of utility model In order to solve the technical problems, the utility model provides a brazed double-layer tube heat exchanger capable of improving the stability of the overall heat exchange performance. The utility model discloses a brazed double-layer tube type heat exchanger which comprises an outer tube, a split cover, baffles, a partition plate and heat exchange inner tubes, wherein the baffles are arranged between the outer tube and the split cover, the outer tube, the split cover and the baffles are fixedly connected, the partition plate is fixedly arranged on the baffles, the inside of the split cover is divided into two groups of chambers by the partition plate, the baffles are communicated with each other and provided with a plurality of groups of heat exchange inner tubes, liquid inlets of each group of heat exchange inner tubes are arranged on the upper side of the partition plate, and liquid outlets of the heat exchange inner tubes are arranged on the lower side of the partition plate. According to the brazed double-layer tube heat exchanger, the upper side of the inner part of the outer tube is provided with the plurality of groups of reinforcing hanging plates in an arrangement mode, the reinforcing hanging plates are fixedly connected with the inner side wall of the outer tube, the reinforcing hanging plates are provided with the upper reinforcing rods in an inserted mode, the upper reinforcing rods are fixedly connected with the baffle plates, the lower side of the inner part of the outer tube is provided with the plurality of groups of reinforcing supporting plates in an arrangement mode, the reinforcing hanging plates are fixedly connected with the inner side wall of the outer tube, the reinforcing supporting plates are provided with the lower reinforcing rods in an inserted mode, and the lower reinforcing rods are fixedly connected with the baffle plates. According to the brazed double-layer tube heat exchanger, the temperature detection bars are inserted into the reinforcing supporting plates and used for testing the internal temperature of the outer tube. According to the brazed double-layer tube heat exchanger, the bottom end of the outer tube is communicated with the waste discharge tube, and the sealing cover on the waste discharge tube is provided with the sealing plug. According to the brazed double-layer tube heat exchanger disclosed by the utility model, two groups of arc-shaped supporting plates are arranged at the bottom end of the outer tube, and a group of supporting frames are arranged on each group of arc-shaped supporting plates. According to the brazed double-layer tube heat exchanger disclosed by the utility model, two groups of lifting lugs are arranged at the top end of the outer tube. According to the brazed double-layer tube heat exchanger, the outer side wall of the outer tube is provided with the identification nameplate. According to the brazed double-layer tube heat exchanger, the waste discharge tube is fixedly connected with the outer tube through brazing. Compared with the prior art, the split-flow type heat exchanger has the beneficial effects that the baffle is arranged between the outer pipe and the split-flow cover, the split-flow cover is internally divided into two groups of chambers by the baffle, the split-flow t