CN204142052U

CN204142052U - A kind of Double-tube-pass heat exchanger structure of heat shock resistance stress

Info

Publication number: CN204142052U
Application number: CN201420612243.6U
Authority: CN
Inventors: 李伟栋; 徐荣飞
Original assignee: HONGSHENG HEAT EXCHANGER MANUFACTURING Co Ltd
Current assignee: HONGSHENG HEAT EXCHANGER MANUFACTURING Co Ltd
Priority date: 2014-10-22
Filing date: 2014-10-22
Publication date: 2015-02-04
Anticipated expiration: 2024-10-22

Abstract

The utility model relates to a kind of Double-tube-pass heat exchanger structure of heat shock resistance stress, comprises core body, and the two ends of described core body are respectively left end socket and right end socket, and its internal channel is divided into upper and lower two flow processs by middle strip of paper used for sealing by described core body; Groove is had in the middle part of described core body one side end face; The surrounding of described core body is respectively arranged with chamfering, and the spacing between the two ends of described groove and core body chamfering place is 0.5mm-1mm; The mounting structure of described core body and left end socket is: be provided with dividing plate in the middle part of described left end socket, the head of described dividing plate is provided with boss, and described boss embeds in the groove of built-in rubber bar.Good effect of heat exchange, heat shock resistance stress is good.

Description

A kind of Double-tube-pass heat exchanger structure of heat shock resistance stress

Technical field

The utility model relates to technical field of heat exchangers, especially a kind of Double-tube-pass heat exchanger structure of heat shock resistance stress.

Background technology

Heat exchanger, also known as heat exchanger, passes to the device of another kind of heat-carrying agent from a kind of heat-carrying agent by heat.In industrial processes, usually need to carry out heating or cooling, i.e. the transmission of heat.When a kind of fluid and one other fluid carry out heat exchange and do not allow to mix, just requiring to carry out in recuperative heat exchanger, be applied to the industries such as chemical industry, oil, power, food. the Main Function of heat exchanger is thermal energy exchange between cold fluid and hot fluid.

Double-tube-pass heat exchanger of the prior art, connects by welding between different flow process, in use, when heat exchanger internal circulation high temperature heat transferring medium, the core material temperature near import is high, and the core material temperature near outlet is low, cause dilatancy inconsistent, thus produce thermal stress.Splicing area between the different flow process of existing Double-tube-pass heat exchanger is less, and during work, thermal shock stress is large, and the phenomenon of stress damage often occurs.

Utility model content

The applicant is for the shortcoming in above-mentioned existing production technology, a kind of Double-tube-pass heat exchanger structure of heat shock resistance stress is provided, this novel two-flow heat structure avoids the phenomenon that when Double-tube-pass heat exchanger works, thermal stress is concentrated, thus improve the ability of heat exchanger heat shock resistance stress, improve dependability.

The technical scheme that the utility model adopts is as follows:

A Double-tube-pass heat exchanger structure for heat shock resistance stress, comprises core body, and the two ends of described core body are respectively left end socket and right end socket, and its internal channel is divided into upper and lower two flow processs by middle strip of paper used for sealing by described core body; Groove is had in the middle part of described core body one side end face; The surrounding of described core body is respectively arranged with chamfering, and the spacing between the two ends of described groove and core body chamfering place is 0.5mm-1mm; The mounting structure of described core body and left end socket is: be provided with dividing plate in the middle part of described left end socket, the head of described dividing plate is provided with boss, and described boss embeds in the groove of built-in rubber bar.

Its further technical scheme is:

The structure of described core body internal channel is: the inner fin comprising uniform intervals arrangement, separated by composite plate and the outer fin be clipped between composite plate and short strip of paper used for sealing between adjacent two inner fins, described inner fin top and bottom installs long strip of paper used for sealing and middle strip of paper used for sealing respectively.

The beneficial effects of the utility model are as follows:

The utility model compact conformation, rationally, core body is by the effect of middle strip of paper used for sealing, core body internal channel is divided into upper and lower two flow processs, slot in the middle part of core body one side end face, and slot as not groove, leaving certain interval in the two-port of groove and core edge, effectively preventing the rubber strip when welding to be burned; The use of rubber strip makes core body obtain good sealing, prevents heat exchanger from use producing pressure differential and the phenomenon of leaking occurs, substantially increasing the ability of heat exchanger heat shock resistance stress, improve the dependability of heat exchanger.

Accompanying drawing explanation

Fig. 1 is front view of the present utility model.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the full sectional view along A-A cross section in Fig. 2.

Fig. 4 is the internal structure schematic diagram (after fluting) of the utility model core body.

Fig. 5 is the internal structure schematic diagram (before fluting) of the utility model core body.

Wherein: 1, left end socket; 2, core body; 3, right end socket; 4, dividing plate; 5, rubber strip; 6, chamfering; 7, groove; 8, inner fin; 9, middle strip of paper used for sealing; 10, long strip of paper used for sealing; 11, short strip of paper used for sealing; 12, composite plate.

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the Double-tube-pass heat exchanger structure of the heat shock resistance stress of the present embodiment, comprises core body 2, and the two ends of core body 2 are respectively left end socket 1 and right end socket 3, and its internal channel is divided into upper and lower two flow processs by middle strip of paper used for sealing 9 by core body 2; Core body 2 one has groove 7 in the middle part of side end face; The surrounding of core body 2 is respectively arranged with chamfering 6, and the spacing between the two ends of groove 7 and core body 2 chamfering 6 place is 0.5mm-1mm; Core body 2 with the mounting structure of left end socket 1 is: be provided with dividing plate 4 in the middle part of left end socket 1, the head of dividing plate 4 is provided with boss, and boss embeds in the groove 7 of built-in rubber bar 5.

As shown in Figure 4 and Figure 5, the structure of core body 2 internal channel is: the inner fin 8 comprising uniform intervals arrangement, separated by composite plate 12 and the outer fin be clipped between composite plate 12 and short strip of paper used for sealing 11 between adjacent two inner fins 8, inner fin 8 top and bottom installs long strip of paper used for sealing 10 and middle strip of paper used for sealing 9 respectively.

Left end socket 1 is divided into epicoele and cavity of resorption by dividing plate 4 by the utility model, and the epicoele of left end socket 1 communicates with the upper flow process passage of core body 2, and the cavity of resorption of left end socket 1 communicates with the lower flow process passage of core body 2; A cavity is only set at right end socket 3 place, and upper and lower two flow processs of core body 2 all communicate with the cavity of right end socket 3.

Core body described in the utility model 2 itself adopts soldering to make, and core body 2 welds with adopting between end socket.

More than describing is to explanation of the present utility model, and be not the restriction to utility model, the utility model limited range, see claim, within protection domain of the present utility model, can do any type of amendment.

Claims

1. the Double-tube-pass heat exchanger structure of a heat shock resistance stress, it is characterized in that: comprise core body (2), the two ends of described core body (2) are respectively left end socket (1) and right end socket (3), and its internal channel is divided into upper and lower two flow processs by middle strip of paper used for sealing (9) by described core body (2); Groove (7) is had in the middle part of described core body (2) side end face; The surrounding of described core body (2) is respectively arranged with chamfering (6), and the spacing between the two ends of described groove (7) and core body (2) chamfering (6) place is 0.5mm-1mm; Described core body (2) with the mounting structure of left end socket (1) is: described left end socket (1) middle part is provided with dividing plate (4), and the head of described dividing plate (4) is provided with boss, and described boss embeds in the groove (7) of built-in rubber bar (5).

2. the Double-tube-pass heat exchanger structure of a kind of heat shock resistance stress as shown in claims 1, it is characterized in that: the structure of described core body (2) internal channel is: the inner fin (8) comprising uniform intervals arrangement, pass through composite plate (12) and the outer fin be clipped between composite plate (12) and short strip of paper used for sealing (11) between adjacent two inner fins (8) to separate, described inner fin (8) top and bottom installs long strip of paper used for sealing (10) and middle strip of paper used for sealing (9) respectively.