SU2302A1 - Heat exchange device - Google Patents

Description

The present invention aims to increase the service life of heat exchange devices (eg, steam, for naphewater) and to make them more accessible for cleaning. FIG. 1-5 shows the proposed device, located vertically, namely: in FIG. 1 and 2 are the elements of which the heat transferring surface of the device is constituted and in FIG. 3, 4 and 5 are side, front and top views of the device. FIG. 6-10 depict the modification of the device with the horizontal arrangement of the entire device, namely: in FIG. 6 is a device located horizontally, in FIG. 7 is a horizontal section of the covers and the diaphragm; FIG. 8 is a section along A-B of FIG. 6, in FIG. 9 - partitions and in FIG. 10 is a front view. The heating surface of the heat exchange device is formed from a series of fitting iron rings / (Figs. 1 and 2), molded together with through pipes 2 of rhombic section. The edges of the pipe are interconnected by ribs 3. The edges of the 4 rings are processed so that when they are placed on each other, the rings form a tight, impermeable joint between them and form the walls of the cylinder, inside which a liquid (vapor or gas) flows between the pipes to heat it up. liquid (steam or gas). The column thus assembled is bolted 7 (Figs. 3, 4 and 5). The pipes are placed in the ring asymmetrically with respect to the center of the ring: from FIG. Figures 1 and 2 show that they represent two elements that are folded together. The placement of the edges is also not symmetrical. This is done so that when the elements are folded, the arrangement of pipes and fins in the device is obtained in a staggered order, so that the liquid flowing through the device is subjected to constant mixing. For the inlet of the fluid inside the cylinder formed from the rings assembled into the vertical column of elements (Fig. 3), serves as the bottom main casting 5, which is at the same time the base plate of the column. For discharging from the internal space formed by the assembled elements, the upper casting 6 serves. Liquid (gas or steam) brought to the hole in the lower casting passes through the space between the pipes and the ribs of the elements assembled into the column and exits through a pipe attached to the upper cover of the column . A column 8, which is a pipe with flanges and consists of two or three parts in length (for ease of assembly and disassembly), is put on a column assembled in this way from elements and covers. The lower end of the casing is tightly connected to the lower casting of the column, while the upper end is closed by a lid 9, in the center of which there is an opening with a socket for the gland 10, which forms a tight connection between the lid 9 and the elongated part of the casting 6 that extends to the outside of the casing and ends with a family flange 11 The casing is provided in the upper part with a fitting 12 for admitting another liquid (gas or vapor) participating in the heat exchange, which fills the space inside the casing and penetrates into all the tubes of the elements, while it releases its heat through the walls rub another liquid flowing through the column. In order for the heated or cooled parts of the liquid not to linger inside the pipes and thus not reduce the heat transfer of the device, in the latter there are partitions forming a zigzag path of the liquid along the length of the column. In order to form these partitions, on the side parts of the rings of the elements there are two ribs 13 (Fit. 1), which, together with the strips 14 bent of roofing iron (Fig. 4), form two vertical partitions 15 (Fig. 5). In addition to the vertical partitions, there are two or more horizontal partitions 76. The liquid descends to the bottom of the column along a zigzag path formed by the partitions and leaves the device to the outside, flowing through the hole 77 in the base plate.

The longer service life of the device is determined by the fact that the elements constituting the heat transfer surface of the device are cast from cast iron, which is less subject to destruction from rust, acids or condensed steam, than iron, from which tubular boilers are usually made. The strength and serviceability of the device is greater than that of tubular boilers because there are no pipes connected by flared to the bottoms; in case of sharp fluctuations in temperature at the flare points at the tubular boiler 1B, a leak appears. In the described device, the pipes are cast together with the connecting rings. When disassembling, the device's heat transfer surfaces are available for cleaning on both sides.

An element with the same shape can be a device with a horizontal position of the main axis, as shown in FIG. b. Moreover, the lateral tides of the 7 elements shown in FIG. 6, 7 and 8, besides the formation of partitions for directing steam, are designed to hold the elements in the proper position inside the casing of the device. For this purpose, the elements are supported by tides 7 on the horizontal axes shown in FIG. 7 in the form of squares 2, riveted inside the casing. When the device is horizontally positioned, the housing is made easy for assembly to be detachable along its length, i.e. composed of two grooved parts, bolted together using longitudinal flanges 3.

Instead of bolts tightening the elements of the device, a metal elastic or flexible diaphragm 4 is used (Fig. 6 and 7). When assembling the device, a gasket is placed between the last element and the edge 5 of the diaphragm, and the edge b of the diaphragm is clamped between the flanges of the casing and the cover of the device. The shape (height) of the diaphragm is made so that when assembling, its lower end 5 presses against the gasket to obtain a tight, impermeable connection. The space, limited by the outer spherical lid, inner conical lid and diaphragm, is filled through the hole in the conical lid 7 with water (or other liquid) flowing through the device, and the air of this space is forced out through the hole 8. SUBJECT OF THE PATENT. 1. a heat exchange device, characterized in that its heating surface is formed from a series of cast-iron rings 7 fitted to each other (Figs. 1 and 2) with through pipes 2 of rhombic cross-section, shifted in each subsequent ring by half a step, from which the rings are dialed heating column. bolts 7 (figs. 3, 4 and 5), with inlet 77 in the main casting 5 and exit through the casting 6 with a gland neck, the whole column surrounded by an iron casing 8 designed to guide the coolant and attached to the cast iron face castings .. 2. Variation of the device described in Section 1, characterized by the use of longitudinal partitions 14, attached to the ribs 13, and transverse partitions 76, intended to direct the cooled LIQUID 3. The change of the device characterized in Section 1, characterized by ontalnym location the whole device (FIGS. 6, 7 and 8).

T on-pitograf “Red Pechatnik, Leningrad, International, 75.

FIG. I

FIG. 3 of FIG. FIG. 5. FIG. 7

FIG. 9.

FIG. ten.

FIG. eight