CN219829575U

CN219829575U - Heat exchanger

Info

Publication number: CN219829575U
Application number: CN202321162443.1U
Authority: CN
Inventors: 于希明; 张文泉
Original assignee: Taiwei Energy Group Co ltd
Current assignee: Taiwei Energy Group Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-10-13
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a heat exchanger, which comprises baffle plates symmetrically arranged and heat exchange tubes arranged between the two baffle plates, wherein the heat exchange tubes are elliptical tubes, a plurality of heat exchange tubes are arranged, the plurality of heat exchange tubes are arranged in parallel, two ends of each heat exchange tube penetrate through the baffle plates and extend for a certain distance, two adjacent heat exchange tubes are connected through an arc-shaped bent pipe, the plurality of heat exchange tubes and the arc-shaped bent pipe are spliced to form an S-shaped heat exchange group tube, a water inlet and a water outlet are respectively reserved on the upper side and the lower side of the S-shaped heat exchange group tube, and a fin assembly and a positive plate assembly are arranged between the two baffle plates.

Description

Heat exchanger

Technical Field

The utility model relates to the technical field of heat exchange of gas boilers, in particular to a heat exchanger.

Background

A heat exchanger (also known as a heat exchanger or heat exchange device) is a device for transferring heat from a hot fluid to a cold fluid to meet specified process requirements, and is an industrial application of convective heat transfer and thermal conduction. The heat exchangers can be classified in different ways. According to the operation process, the method can be divided into three categories of a dividing wall type, a mixed type and a heat accumulating type (or called regenerative type); the degree of compactness of the surface can be divided into two types, compact and non-compact.

The main structure of the heat exchanger in the prior art comprises a heat exchange tube and fins, wherein the heat exchange tube and the fins are vertically arranged, so that heat flow can pass through the fins when passing through the fins, the contact time between hot gas and the fins is certain, namely the heating time is certain, so that the heat absorption quantity of water flow is smaller in unit area and time, the heat efficiency is also lower, the heat exchanger needs to be cleaned regularly in order to ensure the service life and efficiency of the heat exchanger, and the fins of the heat exchanger are made of copper, aluminum and other materials, so that the fins are easily deformed in a touch manner in the cleaning process, and the heat exchange efficiency of the fins is further reduced.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model aims to provide a heat exchanger, which solves the problems that in the prior art, a heat exchange tube and fins are vertically arranged, so that heat flow passes through the fins until the heat flow passes through the fins, and the heat exchange efficiency of the fins is reduced due to the fact that the contact time between hot gas and the fins is fixed, namely, the heating time is fixed, so that the heat absorption capacity of water flow is smaller in unit area and time, the heat efficiency of the heat exchanger is also lower, and the heat exchanger needs to be cleaned regularly in order to ensure the service life and efficiency of the heat exchanger.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a heat exchanger, includes the separation blade that the symmetry set up and sets up the heat exchange tube between two separation blades, the heat exchange tube is oval pipe, the heat exchange tube is provided with a plurality ofly, and a plurality of heat exchange tube parallel arrangement, the both ends of heat exchange tube all run through the separation blade and extend a section distance, connect through the arc return bend between two adjacent heat exchange tubes, a plurality of heat exchange tubes splice with the arc return bend and constitute S type heat exchange group pipe, water inlet and delivery port are left respectively to the upper and lower both sides of S type heat exchange group pipe, two be provided with fin subassembly and positive subassembly between the separation blade. By adopting the design of the oval heat exchange tube and the fin assembly, the heat exchange efficiency of the heat exchanger is improved.

Further preferably, the fin assembly comprises a plurality of heat exchange fins, a fin distance locating pin is arranged between two adjacent heat exchange fins, the fin distance locating pin is used for keeping the distance between each heat exchange fin equal, each heat exchange fin consists of a sleeve piece and a connecting piece, the sleeve piece is sleeved on the heat exchange tube, the sleeve piece is elliptical in shape, and the upper sleeve piece and the lower sleeve piece are connected through the connecting piece. Through designs such as spacing locating feet for the distance between two heat transfer fins is confirmed more easily when the assembly, has effectively avoided the jam problem between the heat transfer fin.

Further preferably, the heat exchange fin is divided into an upper part and a lower part, the part of the heat exchange fin above the axis of the heat exchange tube is the upper part of the heat exchange fin, the part of the heat exchange fin below the axis of the heat exchange tube is the lower part of the heat exchange fin, and an included angle of 110-130 degrees is formed between the upper part and the lower part of the heat exchange fin in a folding way. When the included angle is arranged to enable hot gas to pass through, the path is increased, and the heat exchange efficiency of the heat exchanger is improved.

Still preferably, the heat exchange fin is provided with a heat-cutting structure, the heat-cutting structure comprises turbulence holes symmetrically arranged on the upper part and the lower part of the heat exchange fin, and further comprises vortex grooves symmetrically arranged on the connecting sheets, and the vortex grooves enable smoke passing through the connecting sheets to form a swirling vortex at the position for increasing the residence time of the smoke. Through the heat interception structure, the residence time of the flue gas can be effectively increased, and the heat exchange efficiency of the heat exchanger is improved.

Still preferably, the positive assembly is provided with two, and the symmetry is installed on the separation blade, the positive assembly includes the fixture block, the fixture block cup joints on the separation blade, the fixture block is provided with two, and is connected with two separation blades respectively, two fixedly connected with pull rod between the fixture block, one side that the pull rod is close to heat transfer fin is provided with the chute.

Further preferably, the inclination angle of the chute is adapted to the angle of the heat exchange fins, a portion of which is located in the chute. Through the design of positive subassembly, can more firmly fix the heat transfer fin, avoid the not hard up problem that produces in the use to after the heat transfer fin warp appears, can pull the pull rod from top to bottom makes the pull rod force the deformation region with the correction of deformation region when the deformation region.

The utility model has the beneficial effects that:

1. according to the utility model, through the heat-cutting structure, the vortex grooves are utilized to enable the smoke passing through the connecting sheets to form a vortex at the position for increasing the residence time of the smoke, and the residence time of the smoke can be effectively increased by matching with the flow disturbing holes, so that the heat exchange efficiency of the heat exchanger is improved;

2. according to the utility model, through the design of the positive plate component, the heat exchange fins can be more firmly fixed, the loosening problem generated in the use process is avoided, and after the heat exchange fins are deformed, the pull rod can be pulled up and down to forcedly correct the deformation area when the pull rod passes through the deformation area.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the sleeve and the connecting piece in the utility model;

fig. 3 is a schematic structural view of a positive assembly in the present utility model.

In the figure:

1. a baffle; 2. a heat exchange tube; 3. an arc-shaped bent pipe; 4. a water inlet; 5. a water outlet; 6. a heat exchange fin; 7. a sheet distance positioning pin; 8. a sleeve piece; 9. a connecting sheet; 10. a disturbance orifice; 11. a vortex groove; 12. a clamping block; 13. a pull rod; 14. and a chute.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1-3, a heat exchanger comprises baffle plates 1 symmetrically arranged and heat exchange tubes 2 arranged between the two baffle plates 1, wherein the heat exchange tubes 2 are elliptical tubes, the heat exchange tubes 2 are provided with a plurality of heat exchange tubes 2 which are arranged in parallel, two ends of each heat exchange tube 2 penetrate through the baffle plates 1 and extend for a certain distance, two adjacent heat exchange tubes 2 are connected through an arc-shaped bent tube 3, the heat exchange tubes 2 and the arc-shaped bent tube 3 are spliced to form an S-shaped heat exchange group tube, the upper side and the lower side of the S-shaped heat exchange group tube are respectively provided with a water inlet 4 and a water outlet 5, and a fin component and a positive component are arranged between the two baffle plates 1. By adopting the design of the oval heat exchange tube 2 and the fin assembly, the heat exchange efficiency of the heat exchanger is improved. The fin assembly comprises a plurality of heat exchange fins 6, a sheet distance locating pin 7 is arranged between two adjacent heat exchange fins 6, the sheet distance locating pin 7 is used for keeping equal distances between every two heat exchange fins 6, each heat exchange fin 6 consists of a sleeve sheet 8 and a connecting sheet 9, the sleeve sheet 8 is sleeved on the heat exchange tube 2, the sleeve sheet 8 is elliptical in shape, and the upper adjacent sleeve sheet 8 and the lower adjacent sleeve sheet 8 are connected through the connecting sheet 9. Through designs such as the spacing locating feet 7 for the distance between two heat exchange fins 6 is confirmed more easily when the assembly, has effectively avoided the jam problem between the heat exchange fins 6. The heat exchange fins 6 are divided into an upper part and a lower part, the parts of the heat exchange fins 6 above the axis of the heat exchange tube 2 are the upper parts of the heat exchange fins 6, the parts of the heat exchange fins 6 below the axis of the heat exchange tube 2 are the lower parts of the heat exchange fins 6, and the upper parts and the lower parts of the heat exchange fins 6 are folded in half to form an included angle of 110-130 degrees. When the included angle is arranged to enable hot gas to pass through, the path is increased, and the heat exchange efficiency of the heat exchanger is improved. The heat exchange fin 6 is provided with a heat-cutting structure, the heat-cutting structure comprises vortex holes 10 symmetrically arranged on the upper part and the lower part of the heat exchange fin 6, and further comprises vortex grooves 11 symmetrically arranged on the connecting pieces 9, and the vortex grooves 11 enable smoke passing through the connecting pieces 9 to form a swirling vortex at the positions for increasing the residence time of the smoke. Through the heat interception structure, the residence time of the flue gas can be effectively increased, and the heat exchange efficiency of the heat exchanger is improved. The positive assembly is provided with two, and the symmetry is installed on separation blade 1, the positive assembly includes fixture block 12, fixture block 12 cup joints on separation blade 1, fixture block 12 is provided with two, and is connected with two separation blades 1 respectively, two fixedly connected with pull rod 13 between the fixture block 12, one side that pull rod 13 is close to heat transfer fin 6 is provided with chute 14. The inclination angle of the chute 14 is adapted to the angle of the heat exchange fins 6, and a part of the heat exchange fins 6 is located in the chute 14. Through the design of positive subassembly, can more firmly fix heat transfer fin 6, avoid the not hard up problem that produces in the use to after the heat transfer fin 6 warp appears, can pull rod 13 from top to bottom makes rod 13 force the correction of deformation region when passing through the deformation region.

When the device is used, cold water is introduced into the S-shaped heat exchange group pipe through the water inlet 4, heat is transferred to the heat exchange fins 6 through gas combustion, so that the cold water in the heat exchange pipe 2 is heated, and then hot water is discharged through the water outlet 5, so that heat exchange is realized.

By adopting the design of the elliptical heat exchange tube 2 and the fin assembly, the heat exchange efficiency of the heat exchanger is improved; the distance between the two heat exchange fins 6 is easier to determine during assembly by the design of the sheet distance positioning pins 7 and the like, so that the problem of blockage between the heat exchange fins 6 is effectively avoided; through the heat-cutting structure, the residence time of the flue gas can be effectively increased, and the heat exchange efficiency of the heat exchanger is improved; through the design of positive subassembly, can more firmly fix heat transfer fin 6, avoid the not hard up problem that produces in the use to after the heat transfer fin 6 warp appears, can pull rod 13 from top to bottom makes rod 13 force the correction of deformation region when passing through the deformation region. Is suitable for the application in various heat exchanger fields.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a heat exchanger, its characterized in that, including separation blade (1) and the heat exchange tube (2) that set up in the symmetry between two separation blades (1), heat exchange tube (2) are oval pipe, heat exchange tube (2) are provided with a plurality ofly, and a plurality of heat exchange tube (2) parallel arrangement, the both ends of heat exchange tube (2) all run through separation blade (1) and extend a section distance, are connected through arc return bend (3) between two adjacent heat exchange tube (2), and S type heat transfer group pipe is constituteed with arc return bend (3) concatenation to a plurality of heat exchange tube (2), water inlet (4) and delivery port (5) are left respectively to the upper and lower both sides of S type heat transfer group pipe, two be provided with fin subassembly and positive subassembly between separation blade (1).

2. The heat exchanger according to claim 1, wherein the fin assembly comprises a plurality of heat exchange fins (6), a fin distance positioning pin (7) is arranged between two adjacent heat exchange fins (6), the fin distance positioning pin (7) is used for keeping equal distance between each heat exchange fin (6), the heat exchange fins (6) are composed of a sleeve piece (8) and a connecting piece (9), the sleeve piece (8) is sleeved on the heat exchange tube (2), the sleeve piece (8) is elliptical in shape, and the upper sleeve piece and the lower sleeve piece (8) are connected through the connecting piece (9).

3. The heat exchanger according to claim 2, wherein the heat exchange fin (6) is divided into an upper part and a lower part, the heat exchange fin (6) is divided into an upper part of the heat exchange fin (6) above the axis of the heat exchange tube (2), the heat exchange fin (6) is divided into a lower part of the heat exchange fin (6) below the axis of the heat exchange tube (2), and an included angle of 110-130 ° is formed by folding the upper part and the lower part of the heat exchange fin (6) in half.

4. Heat exchanger according to claim 2, characterized in that the heat exchange fins (6) are provided with heat intercepting structures comprising turbulence holes (10) symmetrically arranged on the upper and lower parts of the heat exchange fins (6), and further comprising vortex grooves (11) symmetrically arranged on the connection pieces (9), the vortex grooves (11) causing the flue gas passing between the connection pieces (9) to form a swirling vortex flow therein for increasing the flue gas residence time.

5. The heat exchanger according to claim 1, wherein two positive plate assemblies are arranged and symmetrically installed on the baffle plates (1), each positive plate assembly comprises a clamping block (12), each clamping block (12) is sleeved on each baffle plate (1), each clamping block (12) is provided with two, each clamping block is respectively connected with two baffle plates (1), a pull rod (13) is fixedly connected between each two clamping blocks (12), and a chute (14) is arranged on one side, close to each heat exchange fin (6), of each pull rod (13).

6. A heat exchanger according to claim 5, characterized in that the angle of inclination of the chute (14) is adapted to the angle of the heat exchange fins (6), a part of the heat exchange fins (6) being located in the chute (14).