CN217210466U

CN217210466U - Be used for high difference in temperature tube sheet welding formula to wind tubular heat exchanger

Info

Publication number: CN217210466U
Application number: CN202220192978.2U
Authority: CN
Inventors: 杨敏
Original assignee: Chengdu Ruili Xianchuang Nuclear Energy Technology Co ltd
Current assignee: Chengdu Ruili Xianchuang Nuclear Energy Technology Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-08-16
Anticipated expiration: 2032-01-24

Abstract

The utility model discloses a be used for high difference in temperature tube sheet welding formula to wind tubular heat exchanger, it includes upper tube sheet (1), lower tube sheet (2) and coil pipe (3), it has hot exchange pipe (4) to weld between upper tube sheet (1) and lower tube sheet (2), the upper port of hot exchange pipe (4) communicates with the interior cavity of upper tube sheet (1), the lower port of hot exchange pipe (4) communicates with the interior cavity of lower tube sheet (2); the heat exchange pipe (4) is sleeved with the coil pipe (3), the inner wall of the coil pipe (3) is welded with the outer wall of the heat exchange pipe (4), the upper port of the coil pipe (3) upwards penetrates through the upper pipe plate (1) and is arranged, the lower port of the coil pipe (3) downwards penetrates through the lower pipe plate (2) and is arranged, and the outer side wall of the lower pipe plate (2) is provided with the circulating pump (5). The utility model has the advantages that: compact structure, improvement heat exchange efficiency, prevent coil pipe outer wall scale deposit.

Description

Be used for high difference in temperature tube sheet welding formula to wind tubular heat exchanger

Technical Field

The utility model relates to a heat exchanger adds the technical field of hot water, especially a be used for high difference in temperature tube sheet welding formula to wind tubular heat exchanger.

Background

In the field of waste incineration, in the process of incinerating waste, incineration equipment often discharges a large amount of flue gas with heat at a smoke exhaust pipe, and the flue gas enters an absorption tower and is sprayed and absorbed by the absorption tower to be purified. Because the flue gas has heat, directly absorbed by the absorption tower, the heat of flue gas has been wasted undoubtedly, in order to utilize the heat in the flue gas, people adopt the heat exchanger to heat the running water, and the running water after the heating can supply with workman and use again to reach the utilization to heat in the flue gas.

Current heat exchanger includes water tank and coil pipe, and the top of water tank is provided with the filler, installs the outlet valve on the lateral wall of water tank, and the coil pipe sets up in the water tank, and the inlet port of coil pipe extends in the water tank outside, and extends the end and the fume exhaust union coupling of incinerator, and the port of giving vent to anger of coil pipe extends in the water tank outside, and extends the entry linkage of end and absorption tower. When the device works, a certain amount of tap water is injected into the water tank through the water filling port to ensure that the coil pipe is submerged by the tap water, and the flue gas discharged by the incineration equipment is discharged to the absorption tower through the smoke exhaust pipe, the air inlet port of the coil pipe, the coil pipe and the air outlet port of the coil pipe in sequence; workers can use the tap water heated in the water tank by opening the water outlet valve, so that the heat exchanger realizes the heat conversion in the flue gas.

However, although the heat exchanger realizes heat exchange, the following technical defects still exist in the using process: 1. after using a period of time, the sintering has a large amount of incrustations on the outer wall of coil pipe, and the incrustation scale has hindered the heat-conduction of coil pipe, and then leads to waiting for a long time just can thoroughly heat the running water in the water tank, has heat exchange efficiency's technical defect. 2. Tap water in the water tank is in a static state all the time, so that tap water at the contact position of the tap water and the coil pipe is heated quickly, tap water far away from the coil pipe can be heated for a long time, and heat exchange efficiency is further reduced. Therefore, a heat exchanger which can improve the heat exchange efficiency and prevent the outer wall of the coil from scaling is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a compact structure, improve heat exchange efficiency, prevent that being used for of coil pipe outer wall scale deposit high difference in temperature tube sheet welding formula is around tubular heat exchanger.

The purpose of the utility model is realized through the following technical scheme: a high-temperature-difference tube plate welding type wound tube type heat exchanger comprises an upper tube plate, a lower tube plate and a coil, wherein a heat exchange tube is welded between the upper tube plate and the lower tube plate, the upper port of the heat exchange tube is communicated with the inner cavity of the upper tube plate, and the lower port of the heat exchange tube is communicated with the inner cavity of the lower tube plate; the utility model discloses a tubular heat exchanger, including pipe coil, upper tube plate, lower tube plate, circulating pump, the outer wall welding of heat exchange pipe, the outside of heat exchange pipe is located to the cover of pipe coil, the inner wall of pipe coil and heat exchange pipe's outer wall welding, the last port of pipe coil upwards runs through the upper tube plate setting, and the lower port of pipe coil downwards runs through the lower tube plate setting, install the circulating pump on the lateral wall of lower tube plate, the drawing liquid mouth of circulating pump and the interior cavity intercommunication of lower tube plate, the drain port department of circulating pump is connected with the pipeline, the other end of pipeline and the interior cavity intercommunication of upper tube plate.

The upper tube plate and the lower tube plate are both disc bodies with inner cavities.

And a water outlet valve communicated with the inner cavity is arranged at the bottom of the lower tube plate.

The top of going up the tube sheet is provided with the screw hole, and screw hole internal thread is connected with the plug screw.

And a plurality of supporting legs supported on the ground are welded at the bottom of the lower tube plate.

Two clapboards are welded in the heat exchange tube, a plurality of thin tubes are welded between the two clapboards, and the upper and lower ports of the thin tubes penetrate through the two clapboards respectively.

The two partition plates are arranged in parallel.

And a heat insulation sleeve sleeved outside the coil pipe is fixedly arranged between the upper tube plate and the lower tube plate.

The utility model has the advantages of it is following: compact structure, improvement heat exchange efficiency, prevent coil pipe outer wall scale deposit.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the construction of the coil;

FIG. 4 is a schematic view of the construction of the sleeve;

FIG. 5 is a top view of FIG. 4;

in the figure, 1-an upper tube plate, 2-a lower tube plate, 3-a coil, 4-a heat exchange tube, 5-a circulating pump, 6-a pipeline, 7-a water outlet valve, 8-a screw plug, 9-a supporting leg, 10-a partition plate, 11-a thin tube and 12-a heat insulation sleeve.

Detailed Description

The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:

as shown in fig. 1 to 5, a welded-type wound-tube heat exchanger for high-temperature-difference tube plates comprises an upper tube plate 1, a lower tube plate 2 and a coil 3, wherein the upper tube plate 1 and the lower tube plate 2 are both disc bodies with inner cavities, a heat exchange tube 4 is welded between the upper tube plate 1 and the lower tube plate 2, an upper port of the heat exchange tube 4 is communicated with the inner cavity of the upper tube plate 1, and a lower port of the heat exchange tube 4 is communicated with the inner cavity of the lower tube plate 2; the utility model discloses a tubular heat exchanger, including tubular heat exchanger 4, tubular heat exchanger 3, circulating pump 5, the interior cavity intercommunication of liquid drawing mouth and lower tube sheet 2 of circulating pump 5, the drain outlet department of circulating pump 5 is connected with pipeline 6, the other end of pipeline 6 and the interior cavity intercommunication of last tube sheet 1 of tubular heat exchanger 4, tubular heat exchanger 4's outside is located to the cover of tubular heat exchanger 3, the inner wall of tubular heat exchanger 3 and the outer wall welding of tubular heat exchanger 4, the last port of tubular heat exchanger 3 upwards runs through upper tube sheet 1 and sets up, and the lower port of tubular heat exchanger 3 downwards runs through lower tube sheet 2 and sets up, install circulating pump 5 on the lateral wall of lower tube sheet 2, circulating pump 5's liquid drawing mouth and the interior cavity intercommunication of lower tube sheet 2. And a heat insulation sleeve 12 sleeved outside the coil pipe 3 is fixedly arranged between the upper pipe plate 1 and the lower pipe plate 2, and the heat insulation sleeve 12 is used for preventing the heat of the coil pipe from being transferred to the outside.

And a water outlet valve 7 communicated with the inner cavity is arranged at the bottom of the lower tube plate 2. The top of the upper tube plate 1 is provided with a threaded hole, and a screw plug 8 is connected with the threaded hole in an internal thread mode. And a plurality of supporting legs 9 supported on the ground are welded at the bottom of the lower tube plate 2. Two clapboards 10 are welded in the heat exchange tube 4, a plurality of thin tubes 11 are welded between the two clapboards 10, the upper and lower ports of the thin tubes 11 respectively penetrate through the two clapboards 10, and the two clapboards 10 are arranged in parallel.

The working process of the utility model is as follows:

s1, connecting the upper port of the coil pipe 3 to a smoke exhaust pipe of the waste incineration equipment by a worker, and connecting the lower port of the coil pipe 3 to the inlet end of the absorption tower;

s2, a worker screws out the screw plug 8, then a certain amount of tap water is injected into the inner cavity of the upper tube plate 1 through the threaded hole, the tap water sequentially passes through the heat exchange tube 4 and the thin tube 11 under the dead weight and finally flows into the inner cavity of the lower tube plate 2, and along with the continuous injection of the tap water, when the worker observes that the water level of the tap water enters the inner cavity of the upper tube plate 1 from the threaded hole, the worker stops injecting the tap water and screws on the screw plug 8;

s3, a worker turns on the circulating pump 5, the circulating pump 5 pumps tap water in the lower tube plate 2, the pumped tap water sequentially passes through the circulating pump 5 and the pipeline 6 and is finally introduced into the inner cavity of the upper tube plate 1, and the tap water can circularly flow among the circulating pump 5, the pipeline 6, the inner cavity of the upper tube plate 1, the tubules 11 and the inner cavity of the lower tube plate 2 along with the continuous work of the circulating pump 5, wherein the flowing direction of the tap water is shown by hollow arrows in FIG. 1;

s4, the flue gas discharged by the incineration equipment is discharged to an absorption tower through a smoke discharge pipe, the upper end port of the coil pipe 3, the coil pipe 3 and the lower end port of the coil pipe 3 in sequence, wherein the flue gas transfers the heat of the flue gas to the coil pipe 3 in the process of flowing through the coil pipe 3, the coil pipe 3 transfers the heat to the heat exchange pipe 4, and the heat exchange pipe 4 transfers the heat to tap water flowing through the thin pipe 11, so that the heat exchange between the flue gas and the tap water is realized; wherein, in the heat exchange process, because the running water is in the mobile state to make the running water of adding can be by quick heating, increased the heated area of running water simultaneously, compare traditional heat exchanger, very big shortening the heat transfer time, thereby very big improvement heat exchange efficiency. In addition, coil pipe 3 has not submerged in the running water, but the welding is in hot exchange pipe 4's outside, and the effectual use of having avoided after a period, incrustation scale appears in coil pipe 3's outer wall, has guaranteed that coil pipe 3 is smooth give hot exchange pipe with heat transfer, compares traditional hot exchange pipe, further improvement heat exchange efficiency.

S5, the worker opens the outlet valve 7 to discharge the heated tap water for the worker to use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a be used for high difference in temperature tube sheet welding formula to wind tubular heat exchanger which characterized in that: the heat exchanger comprises an upper tube plate (1), a lower tube plate (2) and a coil (3), wherein a heat exchange tube (4) is welded between the upper tube plate (1) and the lower tube plate (2), the upper port of the heat exchange tube (4) is communicated with the inner cavity of the upper tube plate (1), and the lower port of the heat exchange tube (4) is communicated with the inner cavity of the lower tube plate (2); the outside of hot exchange pipe (4) is located to the cover of coil pipe (3), the inner wall of coil pipe (3) and the outer wall welding of hot exchange pipe (4), the last port of coil pipe (3) upwards runs through upper tube sheet (1) and sets up, and the lower port of coil pipe (3) runs through down tube sheet (2) and sets up downwards, install circulating pump (5) on the lateral wall of lower tube sheet (2), the drawing liquid mouth of circulating pump (5) and the interior cavity intercommunication of lower tube sheet (2), the drain outlet department of circulating pump (5) is connected with pipeline (6), the other end of pipeline (6) and the interior cavity intercommunication of upper tube sheet (1).

2. The welded wound tube heat exchanger for high temperature differential tube sheets according to claim 1, wherein: the upper tube plate (1) and the lower tube plate (2) are both disc bodies with inner cavities.

3. The welded wound tube heat exchanger for high temperature differential tube sheets according to claim 1, wherein: and a water outlet valve (7) communicated with the inner cavity body is arranged at the bottom of the lower tube plate (2).

4. The welded wound tube heat exchanger for high temperature differential tube sheets according to claim 1, wherein: the top of the upper tube plate (1) is provided with a threaded hole, and the threaded hole is connected with a plug screw (8) in a threaded manner.

5. The welded wound tube heat exchanger for high temperature differential tube sheets according to claim 1, wherein: and a plurality of support legs (9) supported on the ground are welded at the bottom of the lower tube plate (2).

6. The welded wound tube heat exchanger for high temperature differential tube sheets according to claim 1, wherein: two clapboards (10) are welded in the heat exchange tube (4), a plurality of thin tubes (11) are welded between the two clapboards (10), and the upper and lower ports of each thin tube (11) penetrate through the two clapboards (10) respectively.

7. The welded wound tube heat exchanger for high temperature differential tube sheets according to claim 6, wherein: the two partition plates (10) are arranged in parallel with each other.

8. The welded wound tube heat exchanger for high temperature differential tube sheets according to claim 1, wherein: and a heat insulation sleeve (12) sleeved outside the coil pipe (3) is fixedly arranged between the upper tube plate (1) and the lower tube plate (2).