CN215893332U - Heat exchanger - Google Patents

Abstract

The application discloses a heat exchanger belongs to heat exchanger technical field, and it includes the heat exchanger shell, and the heat exchanger shell is the column body, and intake pipe and outlet duct wear to be equipped with to the heat exchanger shell lateral wall, and the heat transfer chamber has been seted up to heat exchanger shell inside, and the heat transfer intracavity is equipped with a plurality of U type pipes, and straight part of U type pipe all follows heat exchanger shell axis parallel arrangement, and the heating groove has all been seted up to straight part of U type pipe, and one side of U type pipe lateral wall relative heating groove is provided with the heating arch. This application has the gas in making the heat exchanger and fully contacts with U type pipe wall, improves heat exchange efficiency's effect.

Description

Heat exchanger

Technical Field

The application relates to the technical field of heat exchange, in particular to a heat exchanger.

Background

The heat exchanger is a device for transferring heat of hot fluid to cold fluid, and is also called as a heat exchanger, and the heat exchanger can be used as a heater, a cooler, a condenser, an evaporator and the like, and is widely applied.

The prior art can refer to the authorization notice number as: CN205425898U, it discloses a U-shaped heat exchanger, which includes: the heat exchanger comprises a shell, a tube plate, at least one group of heat exchange tubes, a distributor and a collector, wherein one end of the shell is open, and an inlet and an outlet are formed on the shell; the tube plate is arranged at one end of the shell; each group of heat exchange tubes comprises a plurality of U-shaped tubes which are arranged in the shell, and two ends of each U-shaped tube extend out of the tube plate and are connected with the tube plate in a sealing way; the distributor is arranged at one end of the plurality of U-shaped pipes; the collector is arranged at the other end of the plurality of U-shaped pipes.

In view of the above-mentioned related technologies, the inventor thinks that when the above-mentioned U-shaped heat exchanger is used, the gas in the heat exchanger cannot be in sufficient contact with the pipe wall of the U-shaped pipe to absorb heat, and the heat exchange efficiency is not high.

SUMMERY OF THE UTILITY MODEL

In order to make the gaseous pipe wall of abundant and U type pipe in the heat exchanger contact, improve heat exchange efficiency, this application provides a heat exchanger.

The application provides a heat exchanger adopts following technical scheme:

the utility model provides a heat exchanger, includes the heat exchanger shell, the heat exchanger shell is the columnar body, intake pipe and outlet duct wear to be equipped with to the heat exchanger shell lateral wall, the heat transfer chamber has been seted up to heat exchanger shell inside, be equipped with a plurality of U type pipes in the heat transfer chamber, straight part of U type pipe is all followed heat exchanger shell axis parallel arrangement, heating groove has all been seted up to straight part of U type pipe, U type pipe lateral wall is relative one side of heating groove is provided with the heating arch.

Through adopting above-mentioned technical scheme, during the use, gaseous from the intake pipe entering heat transfer chamber, be provided with U type pipe in the heat transfer chamber, add the higher liquid of temperature in the U type pipe, gas contact U type outside of tubes lateral wall when gaseous through U type pipe heats gas, because be provided with heating bath and heating arch on the U type pipe, increased the area of contact of U type outside of tubes lateral wall and steam, make the gas in the heat exchanger fully contact with U type pipe wall, improved heat exchange efficiency.

Optionally, the air inlet pipe is arranged on the side wall of one end of the heat exchanger shell in a penetrating mode, and the air outlet pipe is arranged on the side wall of the other end of the heat exchanger shell far away from the air inlet pipe in a penetrating mode.

By adopting the technical scheme, the distance between the gas flowing into the gas outlet pipe from the gas inlet pipe into the heat exchange cavity is the largest, and the heating time of the gas in the heating cavity is prolonged.

Optionally, the heating protrusion is matched with the heating groove of the adjacent U-shaped tube in shape.

By adopting the technical scheme, the heating groove of the U-shaped pipe and the heating protrusion of the adjacent U-shaped pipe are abutted to reduce the distance between the adjacent U-shaped pipes, the area in the heat exchange cavity is saved, more U-shaped pipes can be assembled, and the heating area is increased.

Optionally, the heating grooves and the heating protrusions are uniformly distributed along the straight portion of the U-shaped tube, and the distances between adjacent heating grooves on the same U-shaped tube are the same.

By adopting the technical scheme, the gas entering different positions of the heat exchange cavity is uniformly heated when the heat exchanger is used.

Optionally, the side walls of the bent portion of the U-shaped tube are both spirally arranged.

Through adopting above-mentioned technical scheme, when gaseous process U type pipe bending part lateral wall, the lateral wall of U type part sets to the heliciform and makes it increase with gaseous area of contact, has improved heat exchange efficiency.

Optionally, a fixing frame is fixedly arranged inside the heat exchanger shell, and the U-shaped pipe penetrates through the fixing frame.

Through adopting above-mentioned technical scheme, the mount is fixed with the U type pipe in the heat transfer chamber, reduces rocking of U type pipe in the heat transfer intracavity.

Optionally, the air outlet pipe is provided with heat preservation cotton in a penetrating manner.

By adopting the technical scheme, when the gas after heat exchange flows out of the heat exchange cavity through the air outlet pipe, the heat insulation cotton can reduce the heat of the gas absorbed by the outside through the wall of the air outlet pipe.

Optionally, a filter screen is fixedly arranged at one oil inlet end of the U-shaped pipe.

Through adopting above-mentioned technical scheme, when the liquid after the heating gets into U type pipe from the one end that U type pipe was equipped with the filter screen, the impurity in the filter screen filters the liquid, reduces the possibility that impurity got into U type pipe.

To sum up, the application comprises the following beneficial technical effects:

1. when the heat exchanger is used, gas enters the heat exchange cavity from the gas inlet pipe, the U-shaped pipe is arranged in the heat exchange cavity, liquid with higher temperature is added in the U-shaped pipe, when the gas passes through the U-shaped pipe, the gas contacts the outer side wall of the U-shaped pipe and is heated, and because the heating groove and the heating protrusion are arranged on the U-shaped pipe, the contact area between the outer side wall of the U-shaped pipe and hot gas is increased, so that the gas in the heat exchanger is fully contacted with the pipe wall of the U-shaped pipe, and the heat exchange efficiency is improved;

2. the distance between the gas entering the heat exchange cavity from the gas inlet pipe and flowing to the gas outlet pipe is the largest, so that the heating time of the gas in the heating cavity is prolonged;

3, the heating groove of the U-shaped pipe is abutted against the heating protrusion of the adjacent U-shaped pipe, so that the distance between the adjacent U-shaped pipes is reduced, the area in the heat exchange cavity is saved, more U-shaped pipes can be assembled, and the heating area is increased.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a transverse cross-sectional view of an embodiment of the present application.

FIG. 3 is a partial view of a highlighted U-tube of an embodiment of the present application.

Fig. 4 is a partial structure view of the filter screen according to the present application.

Description of reference numerals:

1. a heat exchanger shell; 11. an air inlet pipe; 12. an air outlet pipe; 121. heat preservation cotton; 13. a fixed mount; 131. a fixing hole; 2. a U-shaped pipe; 21. a heating tank; 22. heating the bumps; 231. and (4) a filter screen.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a heat exchanger.

Referring to fig. 1 and 2, a heat exchanger includes heat exchanger shell 1, and heat exchanger shell 1 is the column, and cylindrical heat transfer chamber has been seted up to heat exchanger shell 1 inside, and intake pipe 11 is worn to be equipped with by heat exchanger shell 1 lateral wall one end, and the heat exchanger shell 1 other end is kept away from intake pipe 11 one side lateral wall is worn to be equipped with outlet duct 12, and intake pipe 11 and outlet duct 12 all set up along perpendicular heat exchanger shell 1 axis direction on the 12 lateral walls of outlet duct. A gap is arranged between the U-shaped pipes 2. When in use, gas enters the heat exchange cavity from the gas inlet pipe 11 for heat exchange, is heated by the heat exchanger and then is discharged out of the heat exchange cavity through the gas outlet pipe 12.

Referring to fig. 2, the outlet pipe 12 is provided with heat insulation cotton 121 in a penetrating manner, and the outer side wall of the outlet pipe 12 is completely covered by the heat insulation cotton 121. When the external temperature is reduced, the heat insulation cotton 121 reduces the heat absorbed by the external environment to the gas outlet pipe 12 through the side wall of the gas outlet pipe 12.

Referring to fig. 1 and 2, the heat exchange cavity is internally provided with a U-shaped pipe 2, the straight part of the U-shaped pipe 2 is arranged along the axis of the heat exchanger shell 1, the two ends of the U-shaped pipe 2 are both arranged on the heat exchanger shell 1 near the end of the air inlet pipe 11, one end of the U-shaped pipe 2 is fed with oil, and the other end of the U-shaped pipe 2 is fed with oil. When the heat exchanger is used, hot oil enters the U-shaped pipe 2 from the oil inlet end, and flows out of the U-shaped pipe 2 from the oil outlet end after heat exchange.

Referring to fig. 2, two semicircular fixing frames 13 are fixedly arranged on the inner side wall of a heat exchanger shell 1, the fixing frames 13 are arranged in a plate shape, one side of each of the arcs of the two fixing frames 13 is fixedly connected with the heat exchanger shell 1, the fixing frames 13 are arranged perpendicular to the axis of the heat exchanger shell 1, the two fixing frames 13 are arranged in the same plane, fixing openings are formed in the surfaces of the two fixing frames 13 near the positions of the U-shaped tubes 2, the fixing openings of the two fixing frames 13 form a circular fixing hole 131, and all the U-shaped tubes 2 are commonly arranged in the fixing hole 131 in a penetrating mode. During the use, wear to establish U type pipe 2 in fixed orifices 131, mount 13 plays fixed U type pipe 2, prevents that U type pipe 2 from taking place to remove in the heat transfer intracavity.

Referring to fig. 3, heating grooves 21 are formed in the side walls of the straight portions of the U-shaped tubes 2, heating protrusions 22 are formed in the positions, opposite to the heating grooves 21, of the side walls of the U-shaped tubes 2, the distances between the adjacent heating grooves 21 on the same U-shaped tube 2 are the same, and the heating protrusions 22 are matched with the shapes of the heating grooves 21 of the adjacent U-shaped tubes 2. When in use, the heating bulges 22 on the U-shaped pipes 2 can be inserted into the heating grooves 21 of the adjacent U-shaped pipes 2, so that the area of the heat exchange cavity occupied by the U-shaped pipes 2 is reduced, and the number of the U-shaped pipes 2 can be increased.

Referring to fig. 4, the inner side wall of the oil inlet end of the U-shaped pipe 2 is fixedly provided with a filter screen 231 perpendicular to the axial direction of the heat exchanger shell 1. When entering the hot oil, the filter screen 231 may filter impurities in the hot oil.

Referring to fig. 3, the side walls of the bent portion of the U-shaped pipe 2 are spirally arranged. When hot oil flows through the bent parts of the U-shaped pipe 2, the hot oil transfers heat to the spiral side walls of the bent parts, so that the contact area between the bent parts and gas in the heat exchange cavity is increased, and the heat exchange efficiency is improved.

The implementation principle of the U-shaped heat exchanger in the embodiment of the application is as follows: during the use, hot oil flows into U type pipe 2 from oil inlet filter screen 231, the gas that will exchange heat with needs again passes through intake pipe 11 and gets into the heat transfer chamber, hot oil flows through straight partial heating arch 22 in U type pipe 2, the spiral pipe wall of heating tank 21 and bending part, heating arch 22 on the adjacent U type pipe 2 pegs graft mutually with heating tank 21, there is the clearance between U type pipe 2, make steam pass through the hole that heating tank 21 left and pass through outlet duct 12 discharge heat transfer chamber, through the thermal fluid of exchange export U type pipe 2 of oil-out outflow.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A heat exchanger, characterized by: including heat exchanger shell (1), heat exchanger shell (1) is the columnar body, intake pipe (11) and outlet duct (12) wear to be equipped with to heat exchanger shell (1) lateral wall, the heat transfer chamber has been seted up to heat exchanger shell (1) inside, be equipped with a plurality of U type pipes (2) in the heat transfer chamber, the straight part of U type pipe (2) is followed heat exchanger shell (1) axis parallel arrangement, heating groove (21) have all been seted up to the straight part of U type pipe (2), U type pipe (2) lateral wall is relative one side of heating groove (21) is provided with heating arch (22).

2. A heat exchanger according to claim 1, wherein: the air inlet pipe (11) is arranged on the side wall of one end of the heat exchanger shell (1) in a penetrating mode, and the air outlet pipe (12) is arranged on the side wall of one side, far away from the air inlet pipe (11), of the other end of the heat exchanger shell (1) in a penetrating mode.

3. A heat exchanger according to claim 1, wherein: the heating bulge (22) is matched with the shape of the heating groove (21) of the adjacent U-shaped pipe (2).

4. A heat exchanger according to claim 1, wherein: the heating grooves (21) and the heating bulges (22) are uniformly distributed along the straight part of the U-shaped pipe (2), and the distance between every two adjacent heating grooves (21) on the same U-shaped pipe (2) is the same.

5. A heat exchanger according to claim 1, wherein: the side walls of the bent parts of the U-shaped pipes (2) are spirally arranged.

6. A heat exchanger according to claim 1, wherein: a fixing frame (13) is fixedly arranged inside the heat exchanger shell (1), and the U-shaped pipes (2) penetrate through the fixing frame (13).

7. A heat exchanger according to claim 1, wherein: the air outlet pipe (12) is provided with heat insulation cotton (121) in a penetrating way.

8. A heat exchanger according to claim 1, wherein: and a filter screen (231) is fixedly arranged at one oil inlet end of the U-shaped pipe (2).

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