CN218764750U

CN218764750U - Heat exchanger with screwed pipe

Info

Publication number: CN218764750U
Application number: CN202223172306.4U
Authority: CN
Inventors: 聂灼辉
Original assignee: Foshan Ruijia Machinery Equipment Co ltd
Current assignee: Foshan Ruijia Machinery Equipment Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-28
Anticipated expiration: 2032-11-29

Abstract

The utility model provides a heat exchanger of screwed pipe relates to heat exchanger technical field, including bobbin, heat transfer nest of tubes, first water lid, second water lid and tube sheet, the heat transfer nest of tubes includes the screwed pipe, the surface and the inner wall of screwed pipe all correspond and are formed with the helicoid, the tube sheet is provided with a plurality of rivers hole, the quantity in rivers hole with the quantity of screwed pipe is the same. The utility model discloses an useful part is, at heat transfer during operation, low temperature water is from the screwed pipe flow, high temperature oil is outside the screwed pipe flow, consequently when low temperature water and high temperature oil when flowing with the screw thread face collision that corresponds and still be formed with the turbulent effect, the mass point of fluid (low temperature water and high temperature oil) unordered promptly, the flow of mixing each other, thereby the internal surface of fluid and screwed pipe and the boundary layer of surface are thinner, help the heat transfer effect, also be formed with the incrustation scale easily, the absorption of microorganism and organic matter, need not frequent clearance, and the structure is ingenious.

Description

Heat exchanger of screwed pipe

Technical Field

The utility model belongs to the technical field of the heat exchanger technique and specifically relates to a heat exchanger of screwed pipe.

Background

The heat exchanger has wide application, and a heating radiator for heating in daily life, a condenser in a steam turbine device, an oil cooler on a space rocket and the like are all heat exchangers.

The Chinese patent literature (application number: 202222370656.5, patent name: a stainless steel inner finned tube heat exchanger) discloses technical contents which comprise: connecting flanges (2) are arranged at two ends of the heat exchanger body (1), the heat exchanger body (1) comprises an inner pipe body (6) and an outer pipe body (3) which are coaxially arranged, a spiral stainless steel fin (8) is arranged between the inner pipe body (6) and the outer pipe body (3), the outer side end of the stainless steel fin (8) is welded on the inner wall of the outer pipe body (3), and the inner side end of the stainless steel fin (8) is welded on the pipe wall of the inner pipe body (6); the inner pipe body (6) and the outer pipe body (3) are made of stainless steel materials and are stainless steel light pipes.

From the above technical content, the inner pipe body (6) is a stainless steel light pipe, that is, the inner wall of the inner pipe body (6) is smooth, so that the fluid can flow in the pipe at a relatively uniform speed, and in practical application, if the fluid flows in the circular pipe at a uniform and consistent flow speed, a boundary layer is formed around the inner wall of the pipe and is gradually thickened, the thickened boundary layer affects the heat exchange performance between the inner wall of the pipe and the outside, and scale, microorganisms and organic matters are easily adsorbed, so that the blockage is easily caused, frequent cleaning is required, and the operation is very complicated.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes shortcoming among the prior art provides a heat exchanger of screwed pipe, can overcome the prior art defect who mentions among the background art.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a heat exchanger of a threaded pipe comprises a pipe barrel, a heat transfer pipe group, a first water cover and a second water cover, wherein the heat transfer pipe group is positioned in the pipe barrel; tube plates are arranged on two sides of the tube barrel, the tube plate on one side is connected with the first water cover, and the tube plate on the other side is connected with the second water cover;

the heat transfer pipe group comprises a plurality of threaded pipes which are arranged in parallel, the outer surfaces and the inner walls of the threaded pipes are correspondingly provided with spiral surfaces, the pipe plate is provided with a plurality of water flow holes, and the number of the water flow holes is the same as that of the threaded pipes and is communicated with the threaded pipes in a one-to-one correspondence manner;

an oil inlet and an oil outlet are arranged above the pipe barrel, a gap is formed between the threaded pipes, and high-temperature oil enters the pipe barrel from the oil inlet, flows in the gap and is finally discharged from the oil outlet.

Furthermore, a flow guide assembly is arranged in the pipe barrel, the flow guide assembly is a baffle plate, and the baffle plate is arranged in the pipe barrel in a staggered mode.

Furthermore, a flow guide assembly is arranged in the pipe barrel, the flow guide assembly is a spiral plate, and the edge of the spiral plate is tightly connected with the inner wall of the pipe barrel.

Furthermore, the first water cover is provided with a water inlet pipe, and the second water cover is provided with a water outlet pipe.

Furthermore, the first water cover is provided with a first partition board, the first partition board divides the interior of the first water cover into two independent areas, one of the areas is connected with a water inlet pipe, and the other area is connected with a water outlet pipe; the second water cover is a backwater cover.

The pipe fitting comprises a pipe fitting body and a supporting frame, wherein the supporting frame is located below the pipe fitting body, the fixing body wraps two ends of the pipe fitting body and is fixedly connected to the supporting frame, and the supporting frame is provided with a plurality of mounting holes.

Furthermore, a concave position is arranged above the supporting frame, and the size of the concave position is matched with that of the pipe barrel; the mounting hole is an elliptical hole.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a heat transfer nest of tubes includes a plurality of parallel arrangement's screwed pipe, the surface and the inner wall of screwed pipe all correspond and are formed with the helicoid, at heat transfer during operation, low temperature water is from the screwed pipe flow, high temperature oil flows outside the screwed pipe, consequently when low temperature water and high temperature oil with the screw face collision that corresponds when flowing and still be formed with turbulent effect, the particle unordered of fluid (low temperature water and high temperature oil) promptly, flow of mixing each other, thereby the internal surface of fluid and screwed pipe and the boundary layer of surface are thinner, help the heat transfer effect, also be formed with the incrustation scale easily, microorganism and organic matter adsorb, need not frequently to clear up, the structure is ingenious.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the invention, and do not constitute a limitation on the invention, in which:

FIG. 1 is a front view of a first embodiment of a heat exchanger;

FIG. 2 is a front view of a second embodiment of a heat exchanger;

FIG. 3 is a schematic diagram of a second embodiment of a heat exchanger;

FIG. 4 is a cross-sectional view of a second embodiment of a heat exchanger;

FIG. 5 is a schematic view of the internal structure of a second embodiment of the heat exchanger;

FIG. 6 is a schematic structural view of a threaded pipe;

FIG. 7 is a schematic structural view of the inner side surface of the first water cover;

FIG. 8 is a schematic view of another construction of a flow directing assembly in a second embodiment of a heat exchanger;

fig. 9 is a schematic structural view of the support frame.

In the figure: 1. a tube barrel; 101. an oil inlet; 102. an oil outlet; 2. a first water cover; 201. a first separator; 3. a second water cover; 4. a tube sheet; 401. a water flow hole; 5. a threaded pipe; 6. a flow guide assembly; 7. a water inlet pipe; 8. a water outlet pipe; 9. a fixing member; 10. a support frame; 1001. mounting holes; 1002. and (6) recessing.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1 to 9, a heat exchanger of a screwed pipe includes a pipe barrel 1, a heat transfer pipe group, a first water cap 2 and a second water cap 3, the heat transfer pipe group is located in the pipe barrel 1; tube plates 4 are arranged on two sides of the tube barrel 1, the tube plate 4 on one side is connected with the first water cover 2, and the tube plate 4 on the other side is connected with the second water cover 3; the tube plates 4 on two sides are provided with bolt holes corresponding to the first water cover 2 and the second water cover 3, and the first water cover 2 and the second water cover 3 are fixedly connected on the corresponding tube plates 4 through the bolt holes.

Specifically, the heat transfer pipe group comprises a plurality of threaded pipes 5 arranged in parallel, the outer surfaces and the inner walls of the threaded pipes 5 are correspondingly provided with spiral surfaces, the pipe plate 4 is provided with a plurality of water flow holes 401, and the number of the water flow holes 401 is the same as that of the threaded pipes 5 and is communicated in a one-to-one correspondence manner; i.e. the low temperature water will flow in from the water flow holes 401 of the tube plate 4 on one side and finally out from the water flow holes 401 of the tube plate 4 on the other side.

An oil inlet 101 and an oil outlet 102 are arranged above the pipe barrel 1, a gap is formed between the threaded pipes 5, and high-temperature oil enters the pipe barrel 1 from the oil inlet 101, flows in the gap and is finally discharged from the oil outlet 102.

The heat exchanger is used for dissipating heat from high-temperature oil, low-temperature water flows in the threaded pipes 5, the high-temperature oil flows from the oil inlet 101 and finally flows from the oil outlet 102, and the high-temperature oil flows in an air gap formed between the threaded pipes 5, namely flows outside the threaded pipes 5 to exchange heat with the low-temperature water in the threaded pipes 5 so as to be cooled.

Since the spiral surfaces are correspondingly formed on the outer surface and the inner wall of the threaded pipe 5, when the low-temperature water and the high-temperature oil flow, they collide with the corresponding thread surfaces, and a turbulent effect is formed, that is, the particles of the fluid (the low-temperature water and the high-temperature oil) flow disorderly and intermingledly, so that the boundary layers between the fluid and the inner surface and the outer surface of the threaded pipe 5 are thin, which is helpful for the heat exchange effect, and the scale, microorganism and organic matter are not easily adsorbed, and thus frequent cleaning is not required.

As shown in fig. 1, which is a first embodiment of the heat exchanger, the first water cap 2 is provided with a water inlet pipe 7, the second water cap 3 is provided with a water outlet pipe 8, water enters from the water inlet pipe 7, passes through the water flow hole 401 of the tube plate 4 on one side, the threaded pipe 5, the water flow hole 401 of the tube plate 4 on the other side in sequence, and finally is discharged from the water outlet pipe 8 of the second water cap 3, and the water flows in a single flow.

As shown in fig. 2 to 4, a second embodiment of the heat exchanger is provided, in which the first water cover 2 is provided with a first partition 201, the first partition 201 divides the inside of the first water cover 2 into two independent areas, one of which is connected with a water inlet pipe 7, and the other is connected with a water outlet pipe 8; the second water cover 3 is a backwater cover.

The second water cover 3 in this embodiment is free of any partition inside, and is free to flow from the water. In this embodiment, the high-temperature oil flows in a constant manner, enters the barrel 1 from the oil inlet 101 and finally flows out from the oil outlet 102; the first partition plate 201 evenly divides the water flow holes 401 of the tube plate 4 on the same side into two groups, one group corresponds to the water inlet pipe 7, the other group corresponds to the water outlet pipe 8, cooling water flows in from the water inlet pipe 7, flows into the threaded pipe 5 along the water flow holes 401 of the area corresponding to the water inlet pipe 7, then flows into the second water cover 8, the second water cover 8 returns water, the cooling water flows into the threaded pipe 5 again (flows into the threaded pipe 5 corresponding to the water outlet pipe 8), and finally the water flows out from the water flow holes 401 corresponding to the water outlet pipe 8 and flows out through the water outlet pipe 8; the water flows in a U-shape. The U-shaped flow achieves the purpose of prolonging the waterway.

As a first structure of the flow guide assembly 6, as shown in fig. 8, the flow guide assembly 6 is a baffle plate, and the baffle plates are arranged in the pipe barrel 1 in a staggered manner. The baffle plate and the unclosed area of the inner wall of the pipe barrel 1 form the flow channel, and the high-temperature oil flows along the flow channel, so that the fluid passes through in a bow shape.

As a second structure of the guide assembly 6, as shown in fig. 4 and 5, the guide assembly 6 is a spiral plate, and the edge of the spiral plate is closely attached to the inner wall of the tube 1.

The baffle plate and the spiral plate are arranged to prolong the flow path of the high-temperature oil in the pipe barrel 1, prolong the heat exchange time of the high-temperature oil connected with the threaded pipe 5 and improve the heat exchange effect.

The pipe fitting fixing device comprises a fixing piece 9 and a support frame 10, wherein the support frame 10 is positioned below a pipe barrel 1, the fixing piece 9 wraps two ends of the pipe barrel 1 and is fixedly connected to the support frame 10 through bolts or welding, so that the pipe barrel 1 is favorably locked on the support frame 10, the support frame 10 is provided with a plurality of mounting holes 1001, and the support frame 10 is fixed on the ground or a machine table through the mounting holes 1001; the mounting hole 1001 is an elliptical hole, so that the support frame 10 can be screwed and locked after slightly moving the adjusting position; the upper part of the support frame 10 is provided with a concave position 1002, the size of the concave position 1002 is matched with that of the pipe barrel 1, and the pipe barrel 1 is installed and fixed in the concave position 1002 to enhance the fixing effect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or replace part of the technical features of the embodiments with equivalent alternatives, modifications, and improvements made within the spirit and principles of the present invention.

Claims

1. A heat exchanger of a threaded pipe is characterized by comprising a pipe barrel, a heat transfer pipe group, a first water cover and a second water cover, wherein the heat transfer pipe group is positioned in the pipe barrel; tube plates are arranged on two sides of the tube barrel, the tube plate on one side is connected with the first water cover, and the tube plate on the other side is connected with the second water cover;

2. The threaded tubular heat exchanger of claim 1, wherein the tubular barrel has a flow guide assembly disposed therein, the flow guide assembly being a baffle plate disposed in the tubular barrel in a staggered arrangement.

3. The threaded tubular heat exchanger of claim 1, wherein the tube has a flow directing assembly disposed therein, the flow directing assembly being a spiral plate, the edge of the spiral plate being in close contact with the inner wall of the tube.

4. A threaded tubular heat exchanger according to claim 2 or 3, in which the first water cap is provided with an inlet pipe and the second water cap is provided with an outlet pipe.

5. The threaded pipe heat exchanger according to claim 2 or 3, wherein the first water cap is provided with a first partition plate, the first partition plate divides the interior of the first water cap into two independent areas, one of the areas is connected with a water inlet pipe, and the other area is connected with a water outlet pipe; the second water cover is a backwater cover.

6. The threaded-tube heat exchanger according to claim 1, comprising a fixing member and a support frame, wherein the support frame is located below the tube, the fixing member wraps two ends of the tube and is fixedly connected to the support frame, and the support frame is provided with a plurality of mounting holes.

7. The threaded-tube heat exchanger according to claim 6, wherein a recessed position is arranged above the supporting frame, and the size of the recessed position is matched with that of the tube barrel; the mounting hole is an elliptical hole.