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Tubular heat exchanger with sawtooth-shaped baffle plate current equalizing channel

A tubular heat exchanger, zigzag technology, applied in the direction of heat exchanger type, heat exchanger shell, indirect heat exchanger, etc., can solve the uneven distribution of cooling liquid flow distribution, temperature field, pressure field distribution in heat exchange tubes problems such as unevenness, affecting the stability of the pipe support structure and the safety of equipment operation, to achieve the effect of improving the uniformity of liquid distribution

Pending Publication Date: 2022-02-25
YANTAI MOON HEAT EXCHANGE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a tubular heat exchanger with a zigzag folded plate flow equalization tube box to solve the problem of the existing tubular heat exchanger with a zigzag folded plate flow equalization tube box in the above background technology. During the use of the heat exchanger, due to the design of the tube heat exchanger, the inlet of the tube box and the circulation pump are connected by a single pipe connection, the diversion method of the single inlet and multiple outlets will make the cooling liquid flow rate Uneven distribution, which in turn reduces the utilization efficiency of heat exchange tubes, uneven distribution of temperature field and pressure field, and poor heat and mass transfer effect
In addition, long-term operation under uneven flow conditions may also cause deformation of the tube group, affecting the stability of the tube support structure and the safety of equipment operation

Method used

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  • Tubular heat exchanger with sawtooth-shaped baffle plate current equalizing channel
  • Tubular heat exchanger with sawtooth-shaped baffle plate current equalizing channel
  • Tubular heat exchanger with sawtooth-shaped baffle plate current equalizing channel

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Embodiment 1

[0027] see Figure 1-4 , the present invention provides a technical solution: a tubular heat exchanger with a zigzag folded plate flow equalizing tube box, including an inlet tube box 4, the inner wall of the inlet tube box 4 is fixedly connected with a vertical zigzag fold Flow plate flow equalization device 6, one side of the inlet tube box 4 is fixedly connected with several parallel heat exchange tube bundles 3, one end of the heat exchange tube bundle 3 communicates with the inside of the inlet tube box 4, and the inlet tube box 4 is far away from the heat exchange The other side of the tube bundle 3 is fixedly connected with the water inlet main pipe 5, one end of the water inlet main pipe 5 is connected with the inside of the inlet pipe box 4, and the zigzag baffle flow equalization device 6 is arranged perpendicular to the water inlet main pipe 5, and the heat exchange tube bundle 3 The other end away from the inlet tube box 4 is fixedly connected with the outlet tube ...

Embodiment 2

[0032] Such as Figure 1-4 As shown, on the basis of the first embodiment, the present invention provides a technical solution: the shape of the inlet pipe box 4 is square.

[0033] In this embodiment, the square pipe box can make the speed of flowing water uniform, and the pressure in the vertical direction is equal in all places, which better reflects the change of the pressure potential energy and kinetic energy of the liquid passing through the zigzag equal flow baffles. Liquid distribution is more even effect.

Embodiment 3

[0035] Such as Figure 1-4 As shown, on the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution: preferably, the number of folded plate openings 7 provided on the outer wall of the bent plate in the first folded plate group 601 is 6 , the diameter of the opening is 20mm, the shape of the opening 7 of the folding plate is circular, and the openings of the folding plate provided on the outer wall of the bending plate in the second folding plate group 602, the third folding plate group 603 and the fourth folding plate group 604 The number of 7 is 3, and the opening diameter is 20mm.

[0036] In this embodiment, the different flow distribution in the pipe box is improved. When the number of openings in the design of the flap is constant, if the flow rate is increased, the diameter of the opening is increased; Equal-diameter hole opening method is convenient for production and processing. When the opening diameter of the zigzag flow equaliza...

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Abstract

The invention relates to a tubular heat exchanger with a sawtooth-shaped baffle plate current equalizing channel, which comprises an inlet tube box, the inner wall of the inlet tube box is fixedly connected with a vertically-arranged sawtooth-shaped baffle plate current equalizing device, one side of the inlet tube box is fixedly connected with a plurality of heat exchange tube bundles parallel to one another, one end of the heat exchange tube bundle is communicated with the interior of the inlet tube box, the other side, away from the heat exchange tube bundle, of the inlet tube box is fixedly connected with a water inlet main tube, and one end of the water inlet main tube is communicated with the interior of the inlet tube box. By means of the structure, mutual conversion of liquid pressure and kinetic energy is achieved, all positions have the same power potential energy after passing through the current equalizing plate, liquid in the tube box is fully and evenly distributed, the liquid distribution uniformity in the heat exchange tube is effectively improved, the effect of more even liquid distribution is achieved, by guaranteeing that water flow in the heat exchange tube is even, and the overall heat exchange performance of the heat exchanger is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of heat exchange equipment, and in particular relates to a tubular heat exchanger with a zigzag folded plate flow equalizing pipe box. Background technique [0002] The tubular heat exchanger has the advantages of compact layout, large heat exchange area and good heat exchange performance, and has been widely used in various heat exchange devices. In the actual use of heat exchange equipment, the flow distribution uniformity of heat exchange tubes is the most important factor important factor in heat transfer performance. [0003] The high-temperature liquid enters the tube box through the circulating pump, and then is distributed to the heat exchange tubes. In the design of the tube heat exchanger, the inlet of the tube box and the circulating pump are connected by a single tube connection. As a result, the flow distribution of the cooling liquid in different heat exchange tubes is uneven, which in turn le...

Claims

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Application Information

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IPC IPC(8): F28D1/053F28F9/22
CPCF28D1/05316F28F9/22F28F2009/222
Inventor 葛文婧于国昌于静王超程艳霞
Owner YANTAI MOON HEAT EXCHANGE TECH