CN202582287U

CN202582287U - Two-stage gradient heat transfer heat exchanger

Info

Publication number: CN202582287U
Application number: CN 201220133851
Authority: CN
Inventors: 吴信莲
Original assignee: HEFEI KEYE ELECTRICITY PHYSICS EQUIPMENT MANUFACTURING Co Ltd
Current assignee: HEFEI KEYE ELECTRICITY PHYSICS EQUIPMENT MANUFACTURING Co Ltd
Priority date: 2012-04-01
Filing date: 2012-04-01
Publication date: 2012-12-05
Anticipated expiration: 2022-04-01

Abstract

The utility model discloses a two-stage gradient heat transfer heat exchanger, and relates to the technical field of heat exchange equipment. The two-stage gradient heat transfer heat exchanger consists of two-stage pipelines with different diameters sleeved together. The two-stage pipelines comprise a first-stage heat power bearing part pipeline with larger diameter and a second-stage deep cooling part pipeline with smaller diameter. A heat-transfer medium B is introduced into the second-stage deep cooling part pipeline. A heat-transfer medium A is introduced between the first-stage heat power bearing part pipeline and the second-stage deep cooling part pipeline. The saturation temperature of the heat-transfer medium B is lower than that of the heat-transfer medium A. According to the two-stage gradient heat transfer heat exchanger provided by the utility model, temperature gradient is established inside the heat exchanger, thereby not only realizing heat transfer and conduction by a single layer of medium, but also realizing inter-media heat conduction and cooling, so as to prevent the heat-transfer medium from rapid temperature rise to be converted into transition boiling. The heat exchange efficiency is improved.

Description

Two-stage gradient heat transfer heat exchanger

Technical field:

The utility model relates to the heat-exchange apparatus technical field, relates in particular to a kind of two-stage gradient heat transfer heat exchanger.

Background technology:

The heat transmission of higher calorific power load bearing component and shift and manyly to take away heat with the metallic conduit transmission of internal circulation heat transfer medium is for example being accepted on the copper target that the high power laser light or the particle beams bombard the slugging copper pipe and is flowing through water flowing in copper pipe to take away heat.Copper pipe temperature and water temperature rise very soon when accepting the high power heat load, the water boiling, and when temperature continuation rising, when water changed transition boiling into from nucleate boiling, the heat flow density of the heat transfer of water reduced rapidly, heat transfer deterioration.At present, be employed in pipeline more and set up turbulence structure or change surface configuration, processing such as material increase heat-transfer capability, because these processing are based on heat transfer medium of the same race and single-stage is conducted heat, effect is limited.

The utility model content:

The utility model technical problem to be solved is to overcome the defective of prior art; Provide a kind of heat exchange efficiency high two-stage gradient heat transfer heat exchanger; Set up thermograde in heat exchanger inside, not only realize single-layer medium heat transfer heat conduction, also can carry out heat conduction cooling between medium; Thereby avoid too fast transition boiling, the raising heat exchange efficiency of changing into of heat transfer medium temperature rise.

The utility model technical problem to be solved adopts following technical scheme to realize.

A kind of two-stage gradient heat transfer heat exchanger; It is characterized in that: being nested together by the different two-stage pipeline sky of diameter constitutes; Said two-stage pipeline comprises one-level thermal power load bearing component pipeline and the less secondary degree of depth cooling parts pipeline of diameter that diameter is bigger; At the logical heat transfer medium B of secondary degree of depth cooling parts pipe interior,, logical heat transfer medium A between one-level thermal power load bearing component pipeline and secondary degree of depth cooling parts pipeline.

The saturation temperature of said heat transfer medium B is lower than the saturation temperature of heat transfer medium A.So just set up thermograde in heat exchanger inside; Realize that not only one-level thermal power load bearing component pipeline is to heat transfer medium A single-layer medium heat transfer heat conduction; Also can realize heat transfer medium A is carried out heat conduction cooling between medium through heat transfer medium B; Thereby avoid too fast transition boiling, the raising heat exchange efficiency of changing into of heat transfer medium A temperature rise.

The utility model is set up thermograde in heat exchanger inside, not only realizes single-layer medium heat transfer heat conduction, also can carry out between medium the heat conduction cooling, thereby avoids the heat transfer medium temperature rise too fast and change transition boiling into, improves heat exchange efficiency.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

The specific embodiment:

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with specifically illustrating and embodiment, further set forth the utility model.

As shown in Figure 1; A kind of two-stage gradient heat transfer heat exchanger; Be nested together by the different two-stage pipeline sky of diameter and constitute; Said two-stage pipeline comprises one-level thermal power load bearing component pipeline (1) and the less secondary degree of depth cooling parts pipelines (2) of diameter that diameter is bigger, at the inner logical heat transfer medium B (4) of secondary degree of depth cooling parts pipelines (2); Logical heat transfer medium A (3) between one-level thermal power load bearing component pipeline (1) and secondary degree of depth cooling parts pipelines (2), the saturation temperature of heat transfer medium B (4) is lower than the saturation temperature of heat transfer medium A (3).

Embodiment

Selecting deionized water for use is heat transfer medium A (3); Selecting liquefied ammonia for use is heat transfer medium B (4); The saturation temperature of heat transfer medium B (4) is lower than the saturation temperature of heat transfer medium A (3) under uniform pressure; So just set up thermograde, not only realized one-level thermal power load bearing component pipeline (1), also can realize heat transfer medium A (3) is carried out heat conduction cooling between medium through heat transfer medium B (4) to heat transfer medium A (3) single-layer medium heat transfer heat conduction in heat exchanger inside; Thereby avoid too fast transition boiling, the raising heat exchange efficiency of changing into of heat transfer medium A (3) temperature rise.

More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. two-stage gradient heat transfer heat exchanger; It is characterized in that: being nested together by the different two-stage pipeline sky of diameter constitutes; Said two-stage pipeline comprises one-level thermal power load bearing component pipeline and the less secondary degree of depth cooling parts pipeline of diameter that diameter is bigger; At the logical heat transfer medium B of secondary degree of depth cooling parts pipe interior, logical heat transfer medium A between one-level thermal power load bearing component pipeline and secondary degree of depth cooling parts pipeline.

2. two-stage gradient heat transfer heat exchanger according to claim 1, it is characterized in that: the saturation temperature of said heat transfer medium B is lower than the saturation temperature of heat transfer medium A.