CN203811010U

CN203811010U - Core of plate heat exchanger

Info

Publication number: CN203811010U
Application number: CN201420253417.4U
Authority: CN
Inventors: 王挺; 胡恩波; 李其坤
Original assignee: Ningbo Shenjiang Technology Co Ltd
Current assignee: Ningbo Shenjiang Technology Co Ltd
Priority date: 2014-05-19
Filing date: 2014-05-19
Publication date: 2014-09-03
Anticipated expiration: 2024-05-19

Abstract

The utility model discloses a core of a plate heat exchanger. The core of the plate heat exchanger comprises a plurality of chip modules (1), each chip module (1) comprises an upper chip (2), a lower chip (3) and a fin (4), a space is reserved between each upper chip (2) and the corresponding lower chip (3), and each fin (4) is arranged in the corresponding space. Each upper chip (2) comprises a chip body I (2.1), a first flanging (2.2), a second flanging (2.3) and a third flanging (2.4), wherein the second flanging (2.3) and the first flanging (2.2) are connected and opposite in folding direction, and the third flanging (2.4) is connected with the second flanging (2.3); each lower chip (3) comprises a chip body II (3.1) and a fourth flanging (3.2). The lower end face of each second flanging (2.3) is welded with the upper end face of the corresponding chip body II (3.1), and the outer lateral side of each third flanging (2.4) is welded with the inner lateral side of the corresponding fourth flanging (3.2). The core of the plate heat exchanger has the advantage that oil leakage can be prevented effectively.

Description

Plate type heat exchanger core

Technical field

The utility model relates to heat exchanger, is specifically a kind of plate type heat exchanger core.

Background technology

Plate type heat exchanger is that the part heat of hot fluid is passed to cold fluid, as the cooling fluid water wing passage of flowing through carrys out cold oil wing passage, utilizes heat exchange principle to carry out cooling down high-temperature machine oil, makes it the temperature range that reaches desirable.The critical piece of heat exchanger is device core.As shown in Figure 1, the device core of the heat exchanger of prior art comprises the chip assembly of a plurality of mutual stacks, and leave for the space of fin is installed described comprising between the upper chip 1 ' that is welded to each other and 2 ', two chips of lower chip.There is following defect in the device core of this heat exchanger: upper chip 1 ' is only a flanging of upper chip 1 ' and the welding of lower chip 2 ' with the pad of lower chip 2 ', and solder side is little, in the situation that some engine oil pressure is higher, leakage of oil easily occurs.

Utility model content

The technical problems to be solved in the utility model is that a kind of plate type heat exchanger core that effectively prevents leakage of oil is provided.

Technical solution of the present utility model is, a kind of plate type heat exchanger core is provided, comprise a plurality of mutual stacks the chip assembly being welded and fixed, each described chip assembly comprises chip, lower chip and fin, described upper chip and lower chips welding are fixed, slot milling between upper chip and lower chip, described fin is located in described space, it is characterized in that: described upper chip comprises chip body I, with chip body I the first flanging at angle, connect and be folded to the second contrary flanging with chip body I with first fold, be connected with the second flanging and be folded to the second flanging near the 3rd flanging of a side of chip body I, described lower chip comprises chip body II, Fourth Fold, the upper surface welding of the lower surface of the second described flanging and chip body II, the 3rd described lateral surface of flanging and the welding of the medial surface of Fourth Fold.

Adopt the plate type heat exchanger core of above structure compared with prior art, have the following advantages: the upper lower surface of the second flanging of chip and the welding of the upper surface of the chip body II of lower chip, the medial surface welding of the lateral surface of the 3rd flanging of upper chip and the Fourth Fold of lower chip, the first flanging makes to form space between chip and lower chip, be used for installing fin, the solder side of two different directions, promotes the weld strength of chip simultaneously, effectively improves oil leakage phenomenon.

As improvement, the height of the 3rd described flanging, lower than the height of Fourth Fold, is strengthened the intensity of solder side.

As improvement, described chip body I, the first flanging, the second flanging and the 3rd flanging are one-body molded, and described chip body II and Fourth Fold are one-body molded, and the mode that does not adopt each flanging to be welded to each other effectively prevents leakage of oil.

As improvement, the two ends of described upper chip are provided with hole flanging, the two ends of described lower chip are provided with the lower hole flanging coaxial with upper hole flanging, the internal diameter of described lower hole flanging equals the external diameter of hole flanging, each chip assembly by upper hole flanging and lower hole flanging fit, is accurately located the position between each chip assembly when stack.

Accompanying drawing explanation

Fig. 1 is the structural representation of the heat exchanger core chips components welding part of this prior art.

Fig. 2 is the structural representation of the utility model plate type heat exchanger core.

Fig. 3 is the structural representation of the utility model plate type heat exchanger core chips assembly.

Fig. 4 is the enlarged diagram at A place in Fig. 3.

Wherein:

Prior art: 1 ', upper chip, 2 ', lower chip;

The utility model: 1, chip assembly, 2, upper chip, 2.1, chip body I, the 2.2, first flanging, 2.3, the second flanging, the 2.4, the 3rd flanging, 2.5, upper hole flanging, 3, lower chip, 3.1, chip body II, 3.2, Fourth Fold, 3.3, lower hole flanging, 4, fin.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

As shown in the figure, the utility model plate type heat exchanger core, comprise a plurality of mutual stacks the chip assembly 1 being welded and fixed, each described chip assembly 1 comprises chip 2, 4 of lower chip 3 and wings, described upper chip 2 and lower chip 3 are welded and fixed, slot milling between upper chip 2 and lower chip 3, described fin 4 is located in described space, described upper chip 2 comprises chip body I 2.1, with chip body I 2.1 the first flanging 2.2 at angle, connect and be folded to the second contrary flanging 2.3 with chip body I 2.1 with the first flanging 2.2, be connected with the second flanging 2.3 and be folded to the second flanging 2.3 near the 3rd flanging 2.4 of a side of chip body I 2.1, described lower chip 3 comprises chip body II 3.1, Fourth Fold 3.2, the upper surface welding of the lower surface of the second described flanging 2.3 and chip body II 3.1, the lateral surface of the 3rd described flanging 2.4 and the welding of the medial surface of Fourth Fold 3.2.The height of the 3rd described flanging 2.4 is lower than the height of Fourth Fold 3.2.Described chip body I 2.1, the first flanging 2.2, the second flanging 2.3 and the 3rd flanging 2.4 are one-body molded, and described chip body II 3.1 is one-body molded with Fourth Fold 3.2.The two ends of described upper chip 2 are provided with hole flanging 2.5, and the two ends of described lower chip 3 are provided with the lower hole flanging 3.3 coaxial with upper hole flanging 2.5, and the internal diameter of described lower hole flanging 3.3 equals the external diameter of hole flanging 2.5.

Below only with regard to the utility model preferred embodiment, be described, but can not be interpreted as it is limitations on claims.The utility model is not only confined to above embodiment, and its concrete structure allows to change, and all various variations of doing in the protection domain of the utility model independent claims are all in protection domain of the present utility model.

Claims

1. plate type heat exchanger core, the chip assembly (1) that comprises a plurality of mutual stacks and be welded and fixed, described each chip assembly (1) comprises chip (2), lower chip (3) and fin (4), described upper chip (2) and lower chip (3) are welded and fixed, slot milling between upper chip (2) and lower chip (3), described fin (4) is located in described space, it is characterized in that: described upper chip (2) comprises chip body I (2.1), with chip body I (2.1) the first flanging (2.2) at angle, connect and be folded to contrary the second flanging (2.3) with chip body I (2.1) with the first flanging (2.2), be connected with the second flanging (2.3) and be folded to the second flanging (2.3) near the 3rd flanging (2.4) of a side of chip body I (2.1), described lower chip (3) comprises chip body II (3.1), Fourth Fold (3.2), the lower surface of described the second flanging (2.3) and the welding of the upper surface of chip body II (3.1), the lateral surface of the 3rd described flanging (2.4) and the welding of the medial surface of Fourth Fold (3.2).

2. plate type heat exchanger core according to claim 1, is characterized in that: the height of the 3rd described flanging (2.4) is lower than the height of Fourth Fold (3.2).

3. plate type heat exchanger core according to claim 1, it is characterized in that: described chip body I (2.1), the first flanging (2.2), the second flanging (2.3) and the 3rd flanging (2.4) are one-body molded, described chip body II (3.1) is one-body molded with Fourth Fold (3.2).

4. plate type heat exchanger core according to claim 1, it is characterized in that: the two ends of described upper chip (2) are provided with hole flanging (2.5), the two ends of described lower chip (3) are provided with the lower hole flanging (3.3) coaxial with upper hole flanging (2.5), and the internal diameter of described lower hole flanging (3.3) equals the external diameter of hole flanging (2.5).