CN210486549U - Low energy consumption one-effect heating chamber - Google Patents
Low energy consumption one-effect heating chamber Download PDFInfo
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- CN210486549U CN210486549U CN201921529043.3U CN201921529043U CN210486549U CN 210486549 U CN210486549 U CN 210486549U CN 201921529043 U CN201921529043 U CN 201921529043U CN 210486549 U CN210486549 U CN 210486549U
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Abstract
The utility model discloses an one of low energy consumption imitates heating chamber, include pipy shell side barrel, locate last tube sheet of shell side barrel upper end, locate the lower tube sheet of shell side barrel lower extreme and beThe array is vertically installed with many heat exchange tubes between last tube sheet and the lower tube sheet, still be equipped with the comdenstion water export on the lateral wall that the shell side barrel is close to the bottom, the lateral wall upper portion of shell side barrel is equipped with steam inlet, the heat exchange tube divide into two sections at least, and the internal diameter of top-down ith section is phii＞φi+1. By adopting the structure, the heat exchange tube is arranged into a plurality of sections with the inner diameters reduced from top to bottom, so that the alkali liquid film at the lower part can be effectively prevented from separating from the heat exchange tube due to the temperature reduction, the improvement of the heat exchange efficiency and the reduction of the energy consumption are facilitated, and only the inner diameter of the heat exchange tube needs to be reduced, so that the device has a simple structure and is convenient to use.
Description
Technical Field
The utility model belongs to the technical field of flake caustic soda preparation, specifically say, mainly relate to one and imitate heating chamber.
Background
At present, in the process of preparing flake caustic soda by using dilute caustic soda for evaporation and concentration, an effective heating chamber is arranged to heat the caustic soda. The first-effect heating chamber is internally provided with a falling film tube, and the alkali liquor descends along the inner wall of the falling film tube to exchange heat with steam outside the falling film tube to heat up, so that water vapor in the alkali liquor is evaporated to realize concentration of the alkali liquor. In order to fully heat the alkali liquor, the length of the heat exchange tube is usually very long, and some heat exchange tubes are as high as more than 5 meters, while only one steam inlet of the heating chamber is usually provided, so that how to fully react the steam and the heat exchange tube is related to the energy consumption and the cost of alkali liquor concentration.
The existing method is to reduce energy consumption by reasonably arranging a steam inlet, pressurizing steam and arranging a baffle plate. The steam inlet is arranged at the upper part of the heating chamber, the temperature of the upper part of the heating chamber is higher, the temperature of an alkali liquor film at the upper part is higher than that of the lower part, and the alkali liquor film at the lower part is easy to separate from the inner wall of the falling film pipe, so that the heat exchange efficiency with the steam is reduced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide an effect heating chamber of low energy consumption.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides an one of low energy consumption imitates heating chamber, includes pipy shell side barrel, locates last tube sheet of shell side barrel upper end, locate lower tube sheet of shell side barrel lower extreme and be the vertical installation of array go up many heat exchange tubes between tube sheet and the lower tube sheet, still be equipped with the comdenstion water export on the lateral wall that the shell side barrel is close to the bottom, the lateral wall upper portion of shell side barrel is equipped with steam inlet, the heat exchange tube divide into two sections at least, and the internal diameter of top-down section i is phii＞φi+1。
By adopting the structure, the heat exchange tube is arranged into a plurality of sections with the inner diameters reduced from top to bottom, so that the alkali liquid film at the lower part can be effectively prevented from separating from the heat exchange tube due to the temperature reduction, the improvement of the heat exchange efficiency and the reduction of the energy consumption are facilitated, and only the inner diameter of the heat exchange tube needs to be reduced, so that the device has a simple structure and is convenient to use.
The interval between the upper tube plate and the lower tube plate is L, the vertical distance between the central line of the steam inlet and the upper tube plate is L/n, and the distance between the lower end of the ith section of heat exchange tube from top to bottom and the upper tube plate
Through a large amount of research and calculation, the position of the diameter change of the heat exchange tube is determined, and the alkali liquor film is further prevented from separating from the heat exchange tube.
The internal diameter phi of the ith section of heat exchange tube from top to bottomi＝1.1φi+1. Through a large amount of research and calculation, the ratio of the reducing diameter of the heat exchange tube is determined, and the large diameter of the heat exchange tube is ensured as much as possible on the premise of ensuring that the alkali liquor film is not separated from the heat exchange tube, so that the heat exchange area is ensured as much as possible, and the heat efficiency is improved.
The ith section of heat exchange tube is connected with the i +1 section of heat exchange tube through a conical surface section, the base angle α of the conical surface is 30 degrees, the upper end and the lower end of the conical surface section are respectively in smooth transition with the corresponding heat exchange tube section, and the conical surface section is arranged so as to be beneficial to the smooth and uniform transition of an alkali liquid film between the heat exchange tubes with different inner diameter sections.
And the lower end of the shell pass cylinder is also provided with a balance port which is higher than the condensed water outlet. The pressure balance in the heating chamber can be adjusted, and the safe production can be ensured.
The upper end and the lower end of the shell pass cylinder are respectively provided with a non-condensable gas upper outlet and a non-condensable gas lower outlet, the non-condensable gas upper outlet is higher than the steam inlet, and the height of the non-condensable gas lower outlet is between the balance port and the condensed water outlet. Is beneficial to discharge non-condensable gas and ensures safe production.
The lower bottom surface of the upper tube plate is connected with a plurality of pull rods, a plurality of baffle plates which are spaced up and down are arranged on the pull rods, distance tubes sleeved on the pull rods are padded between the baffle plates, and the baffle plate at the lowest end is tightly pressed at the lower ends of the corresponding distance tubes through the matching of nuts and the lower ends of the pull rods. Is favorable for improving the utilization rate of the steam.
The beneficial effects of the utility model reside in that: the utility model discloses a set up the heat exchange tube into the multistage that the top-down internal diameter reduces, avoided the alkali lye membrane to break away from the heat exchange tube effectively, improved heat exchange efficiency, reduced the energy consumption, have design characteristics such as ingenious, simple structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a reducing part of the heat exchange tube.
Reference numerals: the device comprises an upper tube plate 1, a heat exchange tube 2, a conical surface section 2a, a shell pass cylinder 3, a steam inlet 3a, a condensed water outlet 3b, a balance port 3c, a non-condensable gas upper outlet 3d, a non-condensable gas lower outlet 3e, a pull rod 4, a distance tube 5, a baffle plate 6 and a lower tube plate 7.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the one-effect heating chamber with low energy consumption comprises a tubular shell-side cylinder 3, an upper tube plate 1 arranged at the upper end of the shell-side cylinder 3, a lower tube plate 7 arranged at the lower end of the shell-side cylinder 3, and a plurality of heat exchange tubes 2 vertically arranged in an array between the upper tube plate 1 and the lower tube plate 7. The lower bottom surface of the upper tube plate 1 is connected with a plurality of pull rods 4, a plurality of baffle plates 6 which are spaced up and down are arranged on the pull rods 4, distance tubes 5 which are sleeved on the pull rods 4 are padded between the baffle plates 6, and the baffle plate 6 at the lowest end is tightly pressed at the lower ends of the corresponding distance tubes 5 through the matching of nuts and the lower ends of the pull rods 4.
As shown in fig. 1 and 2, a condensed water outlet 3b is provided on the side wall of the shell-side cylinder 3 near the bottom end, and a steam inlet 3a is provided on the upper portion of the side wall of the shell-side cylinder 3. The lower end of the shell pass cylinder 3 is also provided with a balance port 3c, and the balance port 3c is higher than the condensed water outlet 3 b. The upper end and the lower end of the shell pass cylinder 3 are respectively provided with a non-condensable gas upper outlet 3d and a non-condensable gas lower outlet 3e, the non-condensable gas upper outlet 3d is higher than the steam inlet 3a, and the height of the non-condensable gas lower outlet 3e is between the balance port 3c and the condensed water outlet 3 b.
As shown in figures 1 and 2, in order to avoid the alkali liquid film from separating from the inner wall of the heat exchange tube 2, improve the heat exchange efficiency and reduce the energy consumption, each heat exchange tube 2 is divided into at least two sections, and the inner diameter of the ith section from top to bottom is phii＞φi+1. In fact, through a large amount of research and calculation, if the distance between the upper tube plate 1 and the lower tube plate 7 is L and the vertical distance between the center line of the steam inlet 3a and the upper tube plate 1 is L/n, the distance between the lower end of the ith section of heat exchange tube 2 from top to bottom and the upper tube plate 1 is L/n
And the inner diameter of the ith section of the heat exchange tube 2 from top to bottom is phii＝1.1φi+1. In this embodiment, L is 6m, the vertical distance between the central line of the steam inlet 3a and the upper tube plate 1 is 6/10 m, the heat exchange tube 2 is divided into 9 sections from top to bottom, the distance between the lower end of the uppermost heat exchange tube 2 and the upper tube plate 1 is 1.2m, and the inner diameter of the uppermost heat exchange tube 2 is 0.045 m.
As shown in fig. 2, the ith heat exchange tube 2 and the i +1 heat exchange tube 2 are connected by a conical surface section 2a, a bottom angle α of the conical surface is 30 °, and the upper end and the lower end of the conical surface section 2a are respectively in smooth transition with the corresponding heat exchange tube 2.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. The utility model provides an one of low energy consumption imitates heating chamber, includes pipy shell side barrel, locates last tube sheet of shell side barrel upper end, locate lower tube sheet of shell side barrel lower extreme and be the array and vertically install go up many heat exchange tubes between tube sheet and the lower tube sheet, still be equipped with the comdenstion water export on the lateral wall that the shell side barrel is close to the bottom, the lateral wall upper portion of shell side barrel is equipped with steam inlet, its characterized in that: the heat exchange tube is divided into at least two sections, and the inner diameter of the ith section from top to bottom is phii＞φi+1。
2. A low energy consumption, single effect heating chamber as claimed in claim 1, wherein: the interval between the upper tube plate and the lower tube plate is L, the vertical distance between the central line of the steam inlet and the upper tube plate is L/n, and the distance between the lower end of the ith section of heat exchange tube from top to bottom and the upper tube plate
3. A low energy consumption, single effect heating chamber as claimed in claim 2, wherein: the internal diameter phi of the ith section of heat exchange tube from top to bottomi＝1.1φi+1。
4. A low energy consumption one-effect heating chamber as claimed in claim 3, wherein the ith heat exchange tube is connected with the i +1 heat exchange tube by a conical surface section, the bottom angle α of the conical surface is 30 degrees, and the upper end and the lower end of the conical surface section are respectively in smooth transition with the corresponding heat exchange tube section.
5. The low energy consumption single effect heating chamber of claim 4, wherein: and the lower end of the shell pass cylinder is also provided with a balance port which is higher than the condensed water outlet.
6. The low energy consumption single effect heating chamber of claim 5, wherein: the upper end and the lower end of the shell pass cylinder are respectively provided with a non-condensable gas upper outlet and a non-condensable gas lower outlet, the non-condensable gas upper outlet is higher than the steam inlet, and the height of the non-condensable gas lower outlet is between the balance port and the condensed water outlet.
7. The low energy consumption single effect heating chamber of claim 6, wherein: the lower bottom surface of the upper tube plate is connected with a plurality of pull rods, a plurality of baffle plates which are spaced up and down are arranged on the pull rods, distance tubes sleeved on the pull rods are padded between the baffle plates, and the baffle plate at the lowest end is tightly pressed at the lower ends of the corresponding distance tubes through the matching of nuts and the lower ends of the pull rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921529043.3U CN210486549U (en) | 2019-09-12 | 2019-09-12 | Low energy consumption one-effect heating chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921529043.3U CN210486549U (en) | 2019-09-12 | 2019-09-12 | Low energy consumption one-effect heating chamber |
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| CN210486549U true CN210486549U (en) | 2020-05-08 |
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| CN201921529043.3U Active CN210486549U (en) | 2019-09-12 | 2019-09-12 | Low energy consumption one-effect heating chamber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587682A (en) * | 2021-07-12 | 2021-11-02 | 北京今大禹环境技术股份有限公司 | Heating device for evaporation treatment of high-salinity high-organic-matter wastewater |
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2019
- 2019-09-12 CN CN201921529043.3U patent/CN210486549U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587682A (en) * | 2021-07-12 | 2021-11-02 | 北京今大禹环境技术股份有限公司 | Heating device for evaporation treatment of high-salinity high-organic-matter wastewater |
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