CN213090548U

CN213090548U - Plate type heat exchanger with corrugated heat transfer plate

Info

Publication number: CN213090548U
Application number: CN202021924598.0U
Authority: CN
Inventors: 袁乃近; 许成权; 刘飞
Original assignee: Shandong Aipute Heating And Ventilating Technology Co ltd
Current assignee: Shandong Aipute Heating And Ventilating Technology Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-04-30
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses a plate heat exchanger with corrugated heat transfer plates, which comprises a plurality of middle plates stacked upside down and end plates at the tail end, wherein the middle plates and the end plates are corrugated heat transfer plates; the corrugated heat transfer plate comprises a flow guide area, a flow splitting area and a corrugated area; the shunting areas are symmetrically arranged at the upper end and the lower end of the corrugated area and are in a herringbone shape; the flow guide areas are also symmetrically arranged at the upper end and the lower end of the corrugated area, and the flow guide areas are positioned at one side of the flow splitting area; the flow guide runners on the corrugated area are in two parallel V shapes, and the included angle of each V-shaped runner is 60 degrees. The utility model reduces the flow resistance of the medium by changing the shape of the flow channel of the corrugated area, thereby ensuring the heat exchange effect; in addition, the sheet can be corrected through the lock catch type design of the edge of the sheet, and leakage caused by inclination of the sheet is prevented; it is also possible to increase the tightness from plate to plate.

Description

Plate type heat exchanger with corrugated heat transfer plate

Technical Field

The utility model relates to a plate heat exchanger especially relates to a plate heat exchanger with corrugated heat transfer plate, belongs to heat exchanger technical field.

Background

The plate heat exchanger is widely used in the field of power heating and ventilation as heat transfer equipment due to the characteristics of high heat exchange efficiency, small heat loss, compact structure, small occupied area and the like. However, in addition to the heat exchange efficiency being an important parameter, the resistance is also an important parameter to be referred to. The heat exchanger with large resistance can cause bias flow, thereby influencing the heat exchange effect.

In addition, the quality of the heat exchanger is mainly determined by the pressing and assembling process of the plate. Because the plate heat exchanger comprises a plurality of stacked heat exchange plates, the whole heat exchanger can be leaked due to the fact that one plate is inclined, the plate needs to be disassembled and reassembled or directly scrapped, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a plate type heat exchanger with corrugated heat transfer plates.

In order to solve the technical problem, the utility model discloses a technical scheme is: a plate type heat exchanger with corrugated heat transfer plates comprises a plurality of middle plates stacked upside down and end plates positioned at the tail ends, wherein the middle plates and the end plates are corrugated heat transfer plates;

a plurality of grooves are arranged on the left side and the right side of each corrugated heat transfer plate, a bulge is arranged between every two adjacent grooves, and the grooves and the bulges between every two adjacent corrugated heat transfer plates are mutually nested;

the corrugated heat transfer plate comprises a flow guide area, a flow splitting area and a corrugated area; the shunting areas are symmetrically arranged at the upper end and the lower end of the corrugated area and are in a herringbone shape; the flow guide areas are also symmetrically arranged at the upper end and the lower end of the corrugated area, and the flow guide areas are positioned at one side of the flow splitting area;

the runners on the corrugated area are in two parallel V-shaped shapes, and the included angle of each V-shaped runner is 60 degrees.

Furthermore, the runners on the flow distribution area are mutually crossed to form a net shape, each runner is bent downwards, and a plurality of convex blocks are arranged between every two adjacent runners.

Further, the length of the corrugated region is 1/2 the entire length of the corrugated heat transfer sheet.

Furthermore, corner holes are formed in four corners of the middle plate, and the two corner holes on the same side are an inlet and an outlet of the same medium; two angle holes on the upper and lower same sides are heterogeneous angle holes, and sealing strips are arranged between the heterogeneous angle holes.

Furthermore, the sealing strips are positioned around the heterogeneous corner holes and between the heterogeneous corner holes and the flow distribution area.

The utility model discloses the beneficial effect who has does: the utility model reduces the flow resistance of the medium by changing the shape of the flow channel of the corrugated area, thereby ensuring the heat exchange effect; in addition, the sheet can be corrected through the lock catch type design of the edge of the sheet, and leakage caused by inclination of the sheet is prevented; it is also possible to increase the tightness from plate to plate.

Drawings

Fig. 1 is a schematic view of the overall structure of a corrugated heat transfer plate.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of B in fig. 1.

In the figure: 1. a corrugated region; 2. a shunting region; 3. a flow guide area; 4. a bump; 5. a protrusion; 6. and (4) corner holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model provides a plate heat exchanger with corrugated heat transfer slab, heat exchanger include a plurality of middle slab that are stacked together upside down and be located terminal end plate, the utility model discloses a slab pile up the mode, the method of assembling into the heat exchanger all is the same with prior art, distinguishes and lies in: the middle plate and the end plate are corrugated heat transfer plates.

As shown in fig. 1, the corrugated heat transfer sheet includes a flow guiding region 3, a flow dividing region 2, and a corrugated region 1; the shunting areas are symmetrically arranged at the upper end and the lower end of the corrugated area and are in a herringbone shape; the flow guide areas are also symmetrically arranged at the upper end and the lower end of the corrugated area, and the flow guide areas are positioned at one side of the flow splitting area; the herringbone shunting area is longer in side edge and can be butted with the flow guide area, so that the medium in the flow guide area can conveniently enter the shunting area.

The corner department of middle slab has all seted up angular hole 6, and controls two angular holes of homonymy and be the import and the export of same medium, so two angular holes of homonymy just are heterogeneous hole from top to bottom, and two angular holes of homonymy are heterogeneous angular hole from top to bottom, are separated by the sealing strip between the heterogeneous angular hole to keep apart between the medium of different kinds. The sealing strips are positioned around the heterogeneous corner holes and between the heterogeneous corner holes and the flow distribution area, so that the isolation between the heterogeneities is further ensured.

As shown in fig. 2, the flow channels in the flow splitting region 2 are crossed with each other to form a net shape, and each flow channel is bent downward. The shunting region is used for shunting the medium. The ripple district has the width, and in a general reason, the ripple district that is close to the angular hole preferentially receives the medium, because medium flow relies on gravity in the plate heat exchanger, consequently will cause the regional receipt far away from the angular hole few, can not receive the medium even to the medium is uneven in the distribution in ripple district, thereby causes the medium to obtain abundant heat transfer, makes heat exchange efficiency low.

The purpose of the diverter zone is therefore to divert the media to ensure that the amount of media entering each portion of the corrugated region is even. The utility model discloses in, the runner in the subregion is crooked, and is different according to the distance in angular hole apart from ripple district, and crooked shape is different. Such as: the bending degree of the runner with the angular hole far away from the corrugated area is steep firstly and then gentle; the flow channel at a short distance is less bent.

In addition, in order to ensure that the medium can move along the flow channels, a plurality of bumps 4 are arranged between two adjacent flow channels and extend along the flow channel direction, so that the flow channels are deepened.

The flow guide channels in the corrugated area are in two parallel V shapes, the included angle of each V-shaped flow channel is 60 degrees, and the design can effectively reduce the resistance of the medium in the flowing process. Compared with the heat exchange area with the transverse grains, the medium flows downwards and can cause certain retardation once impacting the transverse grains, thereby increasing the resistance. However, the cross striations cannot be removed because they increase the contact area and promote heat exchange. Therefore, the contradiction is caused, the heat exchange capability is realized, and the effect is low.

The 60-degree V-shaped flow channel increases the contact area and can ensure the heat exchange capacity; on the other hand, the flow channel is inclined downwards, so that the impact of the medium on the corrugation can be correspondingly reduced, and the flow resistance of the medium is reduced.

The length of the corrugated area is 1/2 of the whole length of the corrugated heat transfer plate, so that the medium can travel a sufficient distance on the plate, and the heat exchange effect is improved.

As shown in fig. 3, a plurality of grooves are arranged on the left and right sides of the corrugated heat transfer plate, a protrusion 5 is arranged between two adjacent grooves, and the grooves and the protrusions between two adjacent corrugated heat transfer plates are nested with each other. When a plurality of plates are stacked, the spaced grooves and the spaced protrusions can form a nested structure, so that the plurality of plates are combined more tightly, and the grooves and the protrusions are matched to form a locking structure, so that the plates can be aligned, and the problem of leakage caused by inclination of the plates in the assembling process is solved.

The flow guide area is used for guiding the medium in the corner hole to the flow distribution area, the flow distribution area distributes the medium according to the shape of the flow channel and averages the medium entering the corrugation, the medium exchanges heat in the corrugation area when flowing through the corrugation area, and then enters the corner hole through the flow distribution area and the flow guide area below the corrugation area to finish primary heat exchange.

When the medium enters the lower shunting region after passing through the corrugated region, the shunting region has a converging effect due to the symmetrical structural design, so that the medium enters the flow guide region after converging.

The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.

Claims

1. The utility model provides a plate type heat exchanger with corrugated heat transfer plate, the heat exchanger includes that a plurality of top-down pile together intermediate plate and be located terminal end plate, its characterized in that: the middle plate and the end plate are both corrugated heat transfer plates;

a plurality of grooves are formed in the left side edge and the right side edge of each corrugated heat transfer plate, a bulge (5) is formed between every two adjacent grooves, and the grooves and the bulges between every two adjacent corrugated heat transfer plates are mutually nested;

the corrugated heat transfer plate comprises a flow guide area (3), a flow splitting area (2) and a corrugated area (1); the shunting areas are symmetrically arranged at the upper end and the lower end of the corrugated area and are in a herringbone shape; the flow guide areas are also symmetrically arranged at the upper end and the lower end of the corrugated area, and the flow guide areas are positioned at one side of the flow splitting area;

the runners in the corrugated area are in two parallel V-shaped shapes, and the included angle of each V-shaped runner is 60 degrees.

2. A plate heat exchanger with corrugated heat transfer plates according to claim 1, characterized in that: the runners on the flow distribution area (2) are mutually crossed to form a net shape, each runner is bent downwards, and a plurality of lugs (4) are arranged between every two adjacent runners.

3. A plate heat exchanger with corrugated heat transfer plates according to claim 1, characterized in that: the length of the corrugated region is 1/2 the length of the entire corrugated heat transfer plate.

4. A plate heat exchanger with corrugated heat transfer plates according to claim 1, characterized in that: the four corners of the middle plate are provided with corner holes (6), and the two corner holes on the same side are an inlet and an outlet of the same medium; two angle holes on the upper and lower same sides are heterogeneous angle holes, and sealing strips are arranged between the heterogeneous angle holes.

5. A plate heat exchanger with corrugated heat transfer plates according to claim 4, characterized in that: the sealing strips are positioned around the heterogeneous corner holes and between the heterogeneous corner holes and the flow distribution area.