CN202336220U

CN202336220U - Even-heating reboiler

Info

Publication number: CN202336220U
Application number: CN2011204854012U
Authority: CN
Inventors: 冯佩洪
Original assignee: TAIXING JINJIANG CHEMICAL INDUSTRY CO LTD
Current assignee: TAIXING JINJIANG CHEMICAL INDUSTRY CO LTD
Priority date: 2011-11-30
Filing date: 2011-11-30
Publication date: 2012-07-18
Anticipated expiration: 2021-11-30

Abstract

The utility model relates to an even-heating reboiler which comprises a tube body, a feed inlet and a discharge outlet are respectively arranged at the bottom and top of the tube body, upper and lower tube plates are respectively arranged in the inner cavity of the tube body so as to divide the inner cavity of the tube body into an upper cavity, a heat exchange cavity and a lower cavity, a plurality of heat exchange tubes are arranged in the heat exchange cavity, and the two ends of each heat exchange tube are respectively inserted in the upper and lower tube plates so as to communicate the upper cavity and the lower cavity, the upper cavity and the lower cavity are respectively provided with the feed inlet and the discharge outlet, the upper part and lower part of the outer wall of the tube body are respectively provided with a steam inlet tube and a steam outlet tube which are communicated with the heat exchange cavity, a plurality of through holes are uniformly distributed on the outer wall of the tube body in a same horizontal plane with the heat exchange cavity, and the steam inlet tube is communicated with the heat exchange cavity through the plurality of through holes. After each jet of steam is fed into the heat exchange cavity, because the quantity of the steam is greatly reduced, tube-side materials are hardly coked, and then the continuous operating time of the reboiler is prolonged, thereby avoiding production shutdown caused when a tube bundle of the reboiler is blocked, prolonging the service life of the reboiler, and reducing the application cost.

Description

A kind of reboiler of even heating

Technical field

The utility model relates to the chemical industry equipment field, is specifically related to a kind of reboiler of even heating.

Background technology

Produce the used esterification reboiler of acetate continuously and generally adopt the tubular heat exchanger structure, raw material is walked tube side, and steam is walked shell side through steam inlet pipe.After high-temperature steam (200 ℃) got into, because steam scatters near concentrating on steam inlet pipe, near the tube bank the steam inlet pipe kept higher temperature for a long time, causes heat transfer temperature difference excessive, and the Organic Ingredients in the tube bank is prone to the carbonization coking.In the reboiler running; Near the steam inlet pipe tube bank is slowly stopped up because of the carbonization coking; The actual heat exchange area of reboiler slowly reduces, and can't satisfy and produce required thermic load, in the production and then slowly improve the steam throttle flow; So be absorbed in all the more big throttle flow of coking more, the vicious circle of the easy more coking of all the more big throttle flow.Usually reboiler moves a period of time; Near the steam inlet pipe tube bank is stopped up because of the carbonization coking basically, and the actual heat exchange area of reboiler significantly reduces, and at this moment keeps production through the increasing throttle flow and produces little effect; Have in the production stop and clean reboiler, caused the significant wastage of producing.

Summary of the invention

The purpose of the utility model provides a kind of reboiler of even heating, to solve the problem that near the existing reboiler steam inlet pipe tube bank is prone to coking.

The technical scheme that the utility model adopts is; A kind of reboiler of even heating; Comprise body, upper perforated plate, lower perforated plate, charging aperture, discharging opening, steam inlet pipe, steam outlet pipe and Duo Gen heat exchanger tube; Charging aperture and discharging opening are arranged at the bottom and the top of body respectively; Upper and lower tube sheet is arranged at tube cavity respectively said tube cavity is separated into epicoele, heat exchanging chamber and cavity of resorption; Many heat exchanger tubes are arranged in the heat exchanging chamber and the difference cross-under of the two ends of heat exchanger tube is communicated with epicoele and cavity of resorption on upper and lower tube sheet, are respectively equipped with discharging opening and charging aperture on epicoele and the cavity of resorption, and the tube wall upper and lower is respectively equipped with steam inlet pipe and the steam outlet pipe that is communicated with heat exchanging chamber; It is characterized in that being evenly equipped with many through holes on the tube wall of the same horizontal plane of said heat exchanging chamber, steam inlet pipe is communicated with heat exchanging chambers through many through holes.

Further, said tube wall is provided with an expansion joint, and steam inlet pipe is communicated with expansion joint, and expansion joint is communicated with through many through holes with the body heat exchanging chamber.

Again further, 100-200mm is provided with said many through holes along the tube wall horizontal interval; Said through-hole diameter is 6-10mm.

When this reboiler uses; Steam gets into expansion joint through steam inlet pipe and gets into exchange heat pipe heating in the heat exchanging chamber by many through holes on the heat exchanging chamber, and steam is dispersed into multiply, and per share steam is difficult for causing the coking of tube side material because of per share quantity of steam reduces greatly after getting into heat exchanging chamber; And then can prolong the reboiler stream time; Avoid stopping up the production that causes and stop, prolong reboiler service life, reduce use cost because of reboiler tube bank.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the A-A view.

Among the figure: body 1, upper perforated plate 2, lower perforated plate 3, charging aperture 4, discharging opening 5, steam inlet pipe 6, steam outlet pipe 7, heat exchanger tube 8, expansion joint 9, epicoele 10, cavity of resorption 11, heat exchanging chamber 12, through hole 13.

The specific embodiment

Fig. 1, shown in 2, a kind of reboiler of even heating comprises body 1, upper perforated plate 2, lower perforated plate 3, charging aperture 4, discharging opening 5, steam inlet pipe 6, steam outlet pipe 7, expansion joint 9 and Duo Gen heat exchanger tube 8.Charging aperture 4 and discharging opening 5 are arranged at the bottom and the top of body 1 respectively; Upper and

lower tube sheet

2,3 is arranged at body 1 inner chamber respectively body 1 inner chamber is separated into epicoele 10, heat exchanging chamber 12 and cavity of resorption 11; Many heat exchanger tubes 8 are arranged at heat exchanging chamber 12 two ends difference cross-under interior and heat exchanger tube 8 and on upper and

lower tube sheet

2,3, are communicated with epicoele 10 and cavity of resorption 11, are respectively equipped with discharging opening 5 and charging aperture 4 on epicoele 10 and the cavity of resorption 11, and body 1 outer wall upper and lower is respectively equipped with steam inlet pipe 6 and the steam outlet pipe 7 that is communicated with heat exchanging chamber 12; Be evenly equipped with many through holes 13 on the tube wall of heat exchanging chamber 12 same horizontal planes; Body 1 outer wall is provided with an expansion joint 9, and steam inlet pipe 6 is communicated with expansion joint 9, and expansion joint 9 is communicated with through many through holes 13 with body 1 heat exchanging chamber 12; A plurality of through holes 13 are provided with along body 1 outer wall horizontal interval 100-200mm, and through hole 13 diameters are 6-10mm.

Claims

1. even reboiler of heating; Comprise body, upper perforated plate, lower perforated plate, charging aperture, discharging opening, steam inlet pipe, steam outlet pipe and Duo Gen heat exchanger tube; Charging aperture and discharging opening are arranged at the bottom and the top of body respectively; Upper and lower tube sheet is arranged at tube cavity respectively said tube cavity is separated into epicoele, heat exchanging chamber and cavity of resorption; Many heat exchanger tubes are arranged in the heat exchanging chamber and the difference cross-under of the two ends of heat exchanger tube is communicated with epicoele and cavity of resorption on upper and lower tube sheet, are respectively equipped with discharging opening and charging aperture on epicoele and the cavity of resorption, and the tube wall upper and lower is respectively equipped with steam inlet pipe and the steam outlet pipe that is communicated with heat exchanging chamber; It is characterized in that: be evenly equipped with many through holes on the tube wall of the same horizontal plane of said heat exchanging chamber, steam inlet pipe is communicated with heat exchanging chamber through many through holes.

2. the reboiler of a kind of even heating according to claim 1, it is characterized in that: said tube wall is provided with an expansion joint, and steam inlet pipe is communicated with expansion joint, and expansion joint is communicated with through many through holes with the body heat exchanging chamber.

3. the reboiler of a kind of even heating according to claim 1 and 2 is characterized in that: 100-200mm is provided with said many through holes along the tube wall horizontal interval.

4. the reboiler of a kind of even heating according to claim 1 and 2, it is characterized in that: said through-hole diameter is 6-10mm.