CN210179603U

CN210179603U - Lining structure of steam superheater

Info

Publication number: CN210179603U
Application number: CN201920942952.3U
Authority: CN
Inventors: Xingju Ren; 任兴举; Jianming Xu; 徐建明; Qiang Qian; 钱强; Da Xu; 徐达
Original assignee: Wuxi Yizhou Fireproof Material Co Ltd
Current assignee: Wuxi Yizhou Fireproof Material Co Ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-03-24
Anticipated expiration: 2029-06-21

Abstract

The utility model discloses a steam superheater lining structure relates to the superheated steam field, for solving current overheated insufficient, easily salt deposit dirt, and difficult abluent problem. One side of casing is provided with the combustor, the top of casing is provided with the air inlet, the opposite side of casing is provided with the gas outlet, the bottom of casing is provided with the base, the inside of casing is provided with thermal-insulated heat preservation wall, one side of thermal-insulated heat preservation wall is provided with the heat accumulator, one side of heat accumulator is provided with vapour-water separating mechanism, one side of vapour-water separating mechanism is provided with the superheater intake pipe, the upper end of superheater intake pipe is provided with first superheater, the lower extreme of first superheater is provided with the superheater outlet duct, the inside of interior square tube is provided with the coiled pipe, one side of superheater outlet duct is provided with the desuperheater, one side of desuperheater is provided with the second superheater.

Description

Lining structure of steam superheater

Technical Field

The utility model relates to a saturated steam equipment for heating technical field specifically is a steam superheater lining structure.

Background

At present, most steel mills have byproduct saturated steam in the process, the partial saturated steam pressure is generally lower, the steam consumption is greatly reduced particularly in summer due to larger heat load change of steam users, and in order to obtain full utilization, partial saturated steam has evacuation phenomenon, meanwhile, most of steam generated by the waste heat of the mills is saturated steam, the loss of steam along the process of a conveying pipeline is larger, the conveying distance of the device is limited, so that more and more superheated steam is required to be adopted in the process of utilizing the steam to carry out industrial production.

The steam superheater in the current market has the problems that primary overheating is insufficient, or secondary overheating easily generates salt scale, the salt scale is accumulated for a long time, the salt scale reaches a certain thickness, and the problem that a boiler tube bursts due to untimely cleaning or replacement of the boiler tube is solved, so that the steam superheater in the market urgently needs to be developed to help people to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steam superheater lining structure to it is insufficient to propose current steam superheater steam overheat in the above-mentioned background art, easily salt deposit dirt, and difficult abluent problem to solve.

In order to achieve the above object, the utility model provides a following technical scheme: a steam superheater lining structure comprises a shell, wherein a combustor is arranged on one side of the shell, an air inlet is arranged above the shell, an air outlet is arranged on the other side of the shell, a base is arranged at the bottom end of the shell, a heat insulation wall is arranged inside the shell, a heat accumulator is arranged on one side of the heat insulation wall, a heat accumulator air inlet pipe is arranged on one side of the heat accumulator, a heat accumulator air outlet pipe is arranged on the other side of the heat accumulator, a heat accumulator heat insulation inner wall is arranged inside the heat accumulator heat insulation inner wall, a bottom plate is arranged inside the heat accumulator heat insulation inner wall, an inclined plate is arranged on one side of the bottom plate, a heat accumulator is arranged on one side of the inclined plate, a steam-water separation mechanism is arranged on one side of the heat accumulator air outlet pipe, a superheater air, the superheating furnace is characterized in that an outer column tube is arranged inside the first superheating furnace, an inner square tube is arranged inside the first superheating furnace, a superheating furnace air outlet tube is arranged at the lower end of the first superheating furnace, a coiled tube is arranged inside the inner square tube, a fixing plate is arranged on the inner wall of the outer column tube, a connecting part is arranged outside the fixing plate, a desuperheater is arranged on one side of the superheating furnace air outlet tube, and a second superheating furnace is arranged on one side of the desuperheater.

Preferably, one end of each of the heat accumulator air inlet pipe and the heat accumulator air outlet pipe penetrates through and extends into the heat accumulator heat insulation inner wall, and the heat accumulator heat insulation inner wall is fixedly connected with the inclined plate and the bottom plate.

Preferably, the two sides of the steam-water separation mechanism are provided with partition plates, a water separation sheet is arranged in the steam-water separation mechanism, and a water outlet pipe is arranged below the steam-water separation mechanism.

Preferably, the coiled pipe is fixedly connected with the inner square tube through two fixing plates, and the outer column tube is fixedly connected with the connecting part.

Preferably, a straight pipe is arranged on one side of the desuperheater, a desuperheater cylinder wall is arranged inside the desuperheater, a water inlet pipe is arranged at the upper end of the desuperheater cylinder wall, a thermometer is arranged on one side of the water inlet pipe, an annular water pipe is arranged inside the desuperheater cylinder wall, an atomizing nozzle is arranged inside the annular water pipe, and the atomizing nozzle is provided with a plurality of parts.

Preferably, the water inlet pipe is connected with the annular water pipe in a sealing mode, one end of the straight pipe penetrates through the temperature reduction cylinder wall, and one end of the straight pipe extends to the outside of the annular water pipe.

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

1. this steam superheater lining structure is through setting up steam-water separation mechanism, the saturated steam that will pass through the heat accumulator carries out steam-water separation, the impurity that contains in the clear steam, when overheated twice through the over heater, can not become salt deposit on the snakelike pipe wall, not only can provide superheated steam, can raise the thermal efficiency simultaneously, can prolong steam superheater's life, overcome steam superheater because of the problem of becoming salt deposit emergence accident, simultaneously through setting up adapting unit on the outer wall at first superheater and second superheater, outer cylinder cover is established on the square tube, dismantle when needs are clean and the maintenance, convenient cleanness and maintenance.

2. According to the lining structure of the steam superheating furnace, the first superheating furnace and the second superheating furnace are arranged, the desuperheater is arranged between the first superheating furnace and the second superheating furnace, so that steam reaches rated parameters before entering the second superheating furnace, and saturated steam passing through the steam-water separation mechanism is subjected to secondary high-pressure superheating to produce high-quality superheated steam required by process industry.

Drawings

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

fig. 2 is a schematic structural diagram of a heat accumulator of the present invention;

FIG. 3 is a schematic structural view of a first superheater of the present invention;

fig. 4 is a schematic structural view of the desuperheater of the present invention.

In the figure: 1. a housing; 2. a burner; 3. an air inlet; 4. an air outlet; 5. a base; 6. a heat insulation wall; 7. a heat accumulator; 8. a heat accumulator air inlet pipe; 9. a heat accumulator air outlet pipe; 10. a heat-insulating inner wall of the heat accumulator; 11. a base plate; 12. a sloping plate; 13. a heat storage; 14. a steam-water separation mechanism; 15. a partition plate; 16. a water diversion sheet; 17. a water outlet pipe; 18. a first superheater; 19. an outer column casing; 20. an inner square cylinder; 21. an air inlet pipe of the superheater; 22. an air outlet pipe of the superheater; 23. a serpentine tube; 24. a fixing plate; 25. a connecting member; 26. a desuperheater; 27. a desuperheating cylinder wall; 28. a water inlet pipe; 29. a thermometer; 30. an annular water pipe; 31. an atomizing nozzle; 32. a straight pipe; 33. and a second superheater.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the present invention provides an embodiment: a liner structure of a steam superheater comprises a shell 1, wherein a combustor 2 is arranged on one side of the shell 1, an air inlet 3 is arranged above the shell 1, an air outlet 4 is arranged on the other side of the shell 1, a base 5 is arranged at the bottom end of the shell 1, a heat insulation wall 6 is arranged inside the shell 1, a heat accumulator 7 is arranged on one side of the heat insulation wall 6, a heat accumulator air inlet pipe 8 is arranged on one side of the heat accumulator 7, a heat accumulator air outlet pipe 9 is arranged on the other side of the heat accumulator 7, a heat accumulator heat insulation inner wall 10 is arranged inside the heat accumulator 7, a bottom plate 11 is arranged inside the heat accumulator heat insulation inner wall 10, an inclined plate 12 is arranged on one side of the bottom plate 11, heat accumulators 13 are arranged on one side of the inclined plate 12, a steam-water separation mechanism 14 is arranged on one side of the air outlet, an outer column tube 19 is arranged inside the first superheater 18, an inner square tube 20 is arranged inside the first superheater 18, a superheater outlet tube 22 is arranged at the lower end of the first superheater 18, a coiled tube 23 is arranged inside the inner square tube 20, a fixing plate 24 is arranged on the inner wall of the outer column tube 19, a connecting part 25 is arranged outside the fixing plate 24, a desuperheater 26 is arranged on one side of the superheater outlet tube 22, and a second superheater 33 is arranged on one side of the desuperheater 26.

Furthermore, one end of each of the heat accumulator air inlet pipe 8 and the heat accumulator air outlet pipe 9 penetrates through and extends into the heat accumulator heat insulation inner wall 10, the heat accumulator heat insulation inner wall 10 is fixedly connected with the inclined plate 12 and the bottom plate 11, the change of the flow direction of steam in the heat accumulator is realized by arranging the inclined plate 12, the distribution of the steam in the heat accumulator 7 is optimized, the temperature gradient of the heat accumulator 7 is reduced, and the heat accumulation efficiency of the heat accumulator 7 is improved.

Furthermore, the two sides of the steam-water separation mechanism 14 are both provided with a partition plate 15, a water separation sheet 16 is arranged inside the steam-water separation mechanism 14, a water outlet pipe 17 is arranged at the lower part of the steam-water separation mechanism 14, and impurities contained in the steam are removed through the water separation sheet 16.

Further, the serpentine tube 23 is fixedly connected to the inner square tube 20 by a fixing plate 24, and two fixing plates 24 are provided, the outer cylinder 19 is fixedly connected to the connecting member 25, and when the serpentine tube 23 needs to be cleaned or replaced, the upper and lower connecting members 25 of the outer cylinder 19 can be separated and the two fixing plates 24 can be removed.

Further, one side of desuperheater 26 is provided with straight tube 32, and the inside of desuperheater 26 is provided with desuperheating cylinder wall 27, and the upper end of desuperheating cylinder wall 27 is provided with oral siphon 28, and one side of oral siphon 28 is provided with thermometer 29, and the inside of desuperheating cylinder wall 27 is provided with annular water pipe 30, and the inside of annular water pipe 30 is provided with atomizing nozzle 31, and atomizing nozzle 31 is provided with a plurality of, and multiunit atomizing nozzle 31 sprays water smoke simultaneously during the cooling, improves cooling rate greatly.

Further, the water inlet pipe 28 is connected with the annular water pipe 30 in a sealing mode, one end of the straight pipe 32 penetrates through the temperature reduction cylinder wall 27, and one end of the straight pipe 32 extends to the outside of the annular water pipe 30, so that the sealing performance during steam cooling is guaranteed.

The working principle is as follows: when the steam-water separation device is used, firstly, a large amount of industrial byproduct saturated steam enters the shell 1 from the air inlet 3 through the heat insulation wall 6, when the amount of the saturated steam is greater than the rated load of the superheater, the steam enters the heat accumulator 7 through the heat accumulator air inlet pipe 8 and is stored, when the amount of the saturated steam is less than the rated value of the superheater, the saturated steam in the heat accumulator 7 enters the steam-water separation mechanism 14 through the heat accumulator air outlet pipe 9 and passes through the partition plate 15, the saturated steam is contacted with the water distribution piece 16, moisture contained in the saturated steam is effectively adsorbed on the water distribution piece 16, when the moisture of the water distribution piece 16 reaches a certain degree, the saturated steam drips on the bottom of the steam-water separation mechanism 14 and is discharged outwards through the water outlet pipe 17, the outer surface of the shell 1 is provided with the combustor 2, the combustor 2 can be combusted by adopting gas or oil, the saturated steam with, the coiled pipe 23 is overheated for the first time, the overheated steam enters the desuperheater 26 through the superheater air outlet pipe 22, during desuperheating, water flows enter the annular water pipe 30 through the water inlet pipe 28, water mist is sprayed out of the multiple groups of atomizing nozzles 31 simultaneously, the steam in the pipe is uniformly cooled, the cooled steam enters the second superheater 33 for secondary overheating, the overheated steam after secondary overheating is sent out of the shell 1 through the air outlet 4, the work is completed, when the coiled pipe 23 is damaged or needs to be cleaned, the outer column barrel 19 and the inner square barrel 20 are opened through the connecting part 25 on the outer wall separating the first superheater 18 and the second superheater 33, the two fixing plates 24 are removed, the coiled pipe 23 is taken out, and cleaning and maintenance are facilitated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A steam superheater lining structure comprising a shell (1), characterized in that: one side of the shell (1) is provided with a burner (2), an air inlet (3) is arranged above the shell (1), the other side of the shell (1) is provided with an air outlet (4), the bottom end of the shell (1) is provided with a base (5), a heat insulation wall (6) is arranged inside the shell (1), a heat accumulator (7) is arranged on one side of the heat insulation wall (6), a heat accumulator air inlet pipe (8) is arranged on one side of the heat accumulator (7), a heat accumulator air outlet pipe (9) is arranged on the other side of the heat accumulator (7), a heat accumulator heat insulation inner wall (10) is arranged inside the heat accumulator (7), a bottom plate (11) is arranged inside the heat accumulator heat insulation inner wall (10), an inclined plate (12) is arranged on one side of the bottom plate (11), and a heat accumulator (13) is arranged on, a steam-water separation mechanism (14) is arranged on one side of the heat accumulator air outlet pipe (9), one side of the steam-water separation mechanism (14) is provided with a superheater air inlet pipe (21), a first superheater (18) is arranged at the upper end of the superheater air inlet pipe (21), an outer column casing (19) is arranged inside the first superheater (18), an inner square barrel (20) is arranged inside the first superheater (18), a superheater air outlet pipe (22) is arranged at the lower end of the first superheater (18), a coiled pipe (23) is arranged inside the inner square tube (20), a fixing plate (24) is arranged on the inner wall of the outer column tube (19), the fixing plate (24) is externally provided with a connecting part (25), one side of the superheater air outlet pipe (22) is provided with a desuperheater (26), and one side of the desuperheater (26) is provided with a second superheater (33).

2. A steam superheater liner structure as claimed in claim 1, wherein: one end of each of the heat accumulator air inlet pipe (8) and the heat accumulator air outlet pipe (9) penetrates through and extends into the heat accumulator heat insulation inner wall (10), and the heat accumulator heat insulation inner wall (10) is fixedly connected with the inclined plate (12) and the bottom plate (11).

3. A steam superheater liner structure as claimed in claim 1, wherein: the steam-water separation device is characterized in that partition plates (15) are arranged on two sides of the steam-water separation mechanism (14), water separation sheets (16) are arranged inside the steam-water separation mechanism (14), and a water outlet pipe (17) is arranged below the steam-water separation mechanism (14).

4. A steam superheater liner structure as claimed in claim 1, wherein: the coiled pipe (23) is fixedly connected with the inner square tube (20) through two fixing plates (24), and the outer column tube (19) is fixedly connected with the connecting part (25).

5. A steam superheater liner structure as claimed in claim 1, wherein: a straight pipe (32) is arranged on one side of the desuperheater (26), a desuperheating cylinder wall (27) is arranged inside the desuperheater (26), a water inlet pipe (28) is arranged at the upper end of the desuperheating cylinder wall (27), a thermometer (29) is arranged on one side of the water inlet pipe (28), an annular water pipe (30) is arranged inside the desuperheating cylinder wall (27), an atomizing nozzle (31) is arranged inside the annular water pipe (30), and a plurality of atomizing nozzles (31) are arranged.

6. A steam superheater lining structure as claimed in claim 5, wherein: the water inlet pipe (28) is connected with the annular water pipe (30) in a sealing mode, one end of the straight pipe (32) penetrates through the temperature reduction cylinder wall (27), and one end of the straight pipe (32) extends to the outside of the annular water pipe (30).