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Laminated screw disc heat exchanger

A stacked heat exchanger technology, applied in the direction of indirect heat exchangers, heat exchanger types, laminated components, etc., can solve the problem that small spiral plate heat exchangers cannot be processed, which affects the continuous technological improvement and development of equipment, and processing technology Complicated problems, to achieve the effect of improving heat transfer coefficient and heat transfer efficiency, shortening heat transfer time, and simplifying processing technology

Pending Publication Date: 2017-09-05
SHIJIAZHUANG JIRUI ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex processing technology, high price, high failure rate, and once a failure occurs, it is difficult to repair, thus increasing the equipment cost
In addition, the small spiral plate heat exchangers used in laboratories and pilot scales cannot be processed under the current technical conditions, which also affects the continuous technical improvement and development of this equipment

Method used

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  • Laminated screw disc heat exchanger
  • Laminated screw disc heat exchanger
  • Laminated screw disc heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0043] Furthermore, please also refer to Figure 1 to Figure 9, as a specific embodiment of the laminated spiral heat exchanger provided by the present invention, the sealing fastener includes an upper clamping plate 10 and a lower clamping plate 9, between the upper clamping plate 10 and the double-sided spiral plate 3 Between, between the double-sided screw disk 3 and the double-sided screw disk 3, and between the double-sided screw disk 3 and the lower splint 9, flexible sealing backing plates 15 for sealing are respectively provided, passing through the The upper clamping plate 10, the double-sided screw disk 3, the lower clamping plate 9, the central hole 18 of each of the flexible sealing backing plates 15, and the multiple pairs of bolt pairs of the upper clamping plate 10 and the edge holes of the lower clamping plate 9 are fastened and connected, each The flexible sealing backing plate 15 is respectively provided with communication holes for cold fluid or hot fluid to...

specific Embodiment approach

[0044] Further, see figure 1 , as a specific embodiment of the laminated spiral heat exchanger provided by the present invention, the flexible sealing backing plate 15 is made of high temperature resistant polytetrafluoroethylene material.

[0045] Further, see Figure 6 to Figure 9 , as a specific embodiment of the laminated spiral heat exchanger provided by the present invention, when multiple double-sided spiral disks 3 are stacked, the first spiral groove 1 and the first spiral groove 1 of each double-sided spiral disk 3 The ends of the second spiral groove 2 are respectively provided with vertical communication holes so that the stacked double-sided spiral disks 3 are connected in series up and down, or each double-sided spiral disk 3 corresponds to the side of the first spiral groove 1 and the end of the second spiral groove 2 Horizontal communication holes are provided respectively, and the stacked double-sided spiral discs 3 are connected in parallel through external ...

Embodiment 1

[0053] Embodiment 1: Four-layer spiral heat exchanger connected in series.

[0054] The hot fluid (gray arrow) from the heating unit enters the bottom layer (named the first layer for ease of description) from the first feed pipe 11 located in the middle of the lower clamping plate 9 through the fourth communication hole 20 of the flexible sealing backing plate 15 , the above are arranged in order, and the following embodiments are the same) The second helical groove 2 of the double-sided spiral disk 3 flows from the center to the edge along the second helical groove 2, and in the flow process, it is connected with the first helical groove on the top The cold fluid flowing in reverse direction in 1 performs heat exchange, and then enters the second spiral groove 2 of the second layer of double-sided spiral disk 3 through the U-shaped connecting pipe through the horizontal communication hole 8 on the second side of the second double-sided spiral disk 3 , flows from the edge to ...

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Abstract

The invention provides a laminated screw disc heat exchanger and belongs to the field of chemical heat exchange. The laminated screw disc heat exchanger comprises at least two double-face screw discs. The two faces of each double-face screw disc are provided with a first screw groove and a second screw groove correspondingly, wherein the first screw groove and the second screw groove are used for flowing of cold fluid and hot fluid and do not communicate with each other. A communication hole or a communication pipe used for communicating with the first screw groove and the second screw groove is arranged on each double-face screw disc. Clamping plates are arranged above and below the double-face screw discs. Flexible sealing gaskets are arranged between the double-face screw discs and between the clamping plates and the double-face screw discs and serve as sealing fasteners of the double-face screw discs. Feeding pipes for inflow of cold and hot fluid and discharging pipes for outflow of cold and hot fluid are arranged on the upper clamping plate and the lower clamping plate of the sealing fasteners. The cold fluid and the hot fluid flow reversely in the first screw grooves and the second screw grooves to conduct heat exchange. The laminated screw disc heat exchanger can be used for the heat exchange process of laboratory and pilot test production scale and has good heat exchange efficiency.

Description

technical field [0001] The invention belongs to the technical field of chemical heat exchange, and more specifically relates to a stacked spiral-disc heat exchanger for heat exchange of cold and hot fluids. Background technique [0002] As we all know, the spiral plate heat exchanger is widely used in the fields of medicine, chemical industry and food industry due to its outstanding advantages such as high heat transfer coefficient, uniform flow channel, not easy to block, two channels are not easy to cross materials, compact structure, small heat dissipation area, and small footprint. It has been widely used, especially for waste heat recovery in the heating and cooling process, and has made great contributions to the energy saving and emission reduction of the process. However, due to the complex processing technology, high price, high failure rate, and once a failure occurs, it is difficult to repair, thereby increasing the equipment cost. In addition, the small spiral p...

Claims

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Application Information

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IPC IPC(8): F28D7/10F28F3/08
CPCF28D7/103F28F3/083
Inventor 徐亲民梁志红任金生
Owner SHIJIAZHUANG JIRUI ENERGY SAVING TECH
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