CN2242437Y - Hot-melting radiator with no conjunction box - Google Patents

Abstract

The utility model relates to a hot-melt condensate box with no connection box. The hot and cold carrier device part of the hot-melt condensate box is improved. The hot and cold carrier device part is composed of a plurality of groups of basic units combined together. The basic unit comprises two U-shaped pipes (1) and a pipe plate (3). Fins (6) are arranged on the U-shaped pipes. The U-shaped pipes pass through the pipe plate (3) which is a box body wall. The utility model is characterized in that one end of one U-shaped pipe is communicated with one end of the other U-shaped pipe outside a box body. The other end of each of the two U-shaped pipes are communicated. An interface (4), (5) is respectively arranged in communication positions. Because an original connection box is eliminated outside the box body. Carrier vapor and water enter and go out of the U-shaped pipes through the interfaces and can not enter out of the U-shaped pipes in the box body. Thereby, accident occurrence can be avoided.

Description

There is not the hot-melt condensation box that connects case

The utility model is a kind of chemical industry equipment, particularly a kind of hot-melt condensation box that is used to produce special uses such as phthalic anhydride, cis-butenedioic anhydride.

Hot-melt condensation box is a phthalic anhydride, indispensable key equipment in the production processes such as cis-butenedioic anhydride, mainly be by casing, material (phthalic anhydride, cis-butenedioic anhydride etc.) turnover part, cold and hot carrier arrangement partly waits composition, its effect is the steam state phthalic anhydride that oxidation reaction in the production process generates to be cooled to about 60 ℃ sublimate into needle-like solid, and then be heated to about 150 ℃ and be fused into liquid, to reach the purpose of collecting and being convenient to go on foot down processing, its cold and hot carrier, traditional mode is to adopt conduction oil, the shortcoming of this mode of heating is: equipment investment is big, conduction oil unit price height, consumption is big, easily aging, oil circuit and existence race when maintenance, emit, leak, drip phenomenon, cause environmental pollution, all adopted vapour-water to replace heat-conducting oil heating abroad now, water, vapour is cold and hot carrier, adopt this carrier, the cold and hot carrier arrangement part of hot-melt condensation box is by the U-shaped pipe, tube sheet, the bobbin carriage head, dividing plate is formed, play the support fixation effect by gripper shoe between the U-shaped pipe, have fin on the U-shaped pipe, the openend of U-shaped pipe is welded on the tube sheet, tube sheet and bobbin carriage head constitute even case, its inner-use clapboard separated into two parts, have respectively on the bobbin carriage head, outlet, the U-shaped pipe of tube sheet inboard is outward the material phthalic anhydride that is heated or cooled or cis-butenedioic anhydride etc., tube sheet described here is box body wall, as can be seen, casing is allo with connecting case, carrier steam, water enters the U-shaped pipe from connecting in the case, reaches heating or cooling purpose.But there is a following difficult problem in this kind frame mode always, it is exactly the weld seam between tube sheet and U-shaped pipe, ftractureed easily by the frequent cold and hot influence of rising of contracting, the vapour, the water that connect in the case enter in the casing of tube sheet inboard by weld crack, contact with the outer phthalic anhydride of U-shaped pipe etc., cause and catch fire in the hot-melt condensation box, produce massive losses, because phthalic anhydride and by product are met behind water or the water vapour and iron generation chemical reaction, generate the extremely low ferrous salt of burning-point under higher temperature.And the crack of welding often is not easy to find, so above-mentioned accident takes place unavoidably.

The purpose of this utility model is to overcome the deficiency that above-mentioned technology exists, and changes the version of its cold and hot carrier arrangement part, and carrier vapour, water can not be entered in the hot-melt condensation box casing, avoids the generation of accident.

The purpose of this utility model realizes in the following way:

There is not the hot-melt condensation box that connects case, mainly comprise casing, material import and export, cold and hot carrier arrangement part, cold and hot carrier arrangement part is formed by the combination of many groups elementary cell, and this elementary cell comprises two U-shaped pipes, tube sheet, has fin on the U-shaped pipe, the U-shaped pipe passes tube sheet, tube sheet is box body wall, it is characterized in that outside casing, and an end of a U-shaped pipe is communicated with an end of another root U-shaped pipe, the other end is communicated with, and has interface respectively in connection place.

Below in conjunction with description of drawings:

Fig. 1 is a contour structures schematic diagram of the present utility model.

Fig. 2 is the cold and hot carrier arrangement structural representation of the utility model.

Among the figure, 1 U-shaped pipe, 2 support plates, 3 tube sheets, 4,5 interfaces, 6 fins, 7 casings, 8 material inlets, 9 material outlets, 10 supports.

As Fig. 2, U-shaped pipe 1 still is welded on the tube sheet 3 (being box body wall), in each elementary cell, two different U-shaped pipe one ends are communicated with, and the other end is communicated with, and connection place each has interface 4,5, as the advancing or export of carrier vapour or water, organize the elementary cell combination more and connect and compose closed pipeline.Support plate 2 between the U-shaped pipe plays the support fixation effect, and two closed like this pipelines are arranged in the casing among Fig. 2.The other parts of whole hot-melt condensation box are same as the prior art, Fig. 1 shown in just contour structures roughly, some other auxiliary is not shown, in the utility model, directly by interface turnover U-shaped pipe, the weld seam between U-shaped tube and tube plate also is not interposing in the carrier atmosphere for carrier vapour or water, thereby vapour or water just can not enter tube sheet inboard (in the casing), the materials such as phthalic anhydride outer with the U-shaped pipe mixes chance, thereby do not have the generation of accident.

Advantage of the present utility model is apparent, and casing has removed original case, carrier of connecting outward Vapour or water can not be entered outside the U-shaped pipe in the casing, thereby avoided by interface turnover U-shaped pipe The generation of accident.

Claims (1)

1, there is not the hot-melt condensation box that connects case, mainly comprise casing (7), material import and export, cold and hot carrier arrangement part, cold and hot carrier arrangement part is formed by the combination of many groups elementary cell, this elementary cell comprises two U-shaped pipes (1), tube sheet (3), have fin (6) on the U-shaped pipe, the U-shaped pipe passes tube sheet, tube sheet (3) is box body wall, it is characterized in that outside casing, one end of a U-shaped pipe is communicated with an end of another root U-shaped pipe, the other end is communicated with, and has interface (4), (5) respectively in connection place.

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