SU992991A1 - Heat exchanger - Google Patents

Description

(54) HEAT EXCHANGER

The invention relates to heat exchangers and can be used in ships 1 of power engineering.

Shell-and-tube heat exchangers are known that contain the inlet and outlet nozzles of the heated medium, the tube bundle and partitions to change the direction of fluid flow ij.

To increase the flow rate, the partitions are positioned at a small distance from one another, which leads to an increase in the metal intensity of the heat exchanger;

A heat exchanger is known, comprising a housing with inlet and outlet pipes of the medium, tube and annular spaces, a tube bundle located in the shell and a shell, and central and annular transverse partitions .2.

The disadvantage of this heat exchanger is the incomplete use of the internal volume of the housing for the VLH intensive heat exchange between the liquid and the tube bundle being heated ..

The circuit of the invention is the intensification of heat exchange.

The goal is achieved by the fact that the annular partition of the annular space medium is equipped with

distribution device, made in the form of nozzles, fixed in the central hole of this partition, placed in the nozzle. helical guides, and a cone-shaped shield connected to the latter.

The remaining partitions can also be equipped with similar distribution devices.

A similar distribution device can be provided with a supply pipe of the annular space medium.

15

In this case, the switchgear in the inlet pipe is fitted with a flange, and a counter groove for the switchgear head is made in the pipe.

20

Figure 1 presents the proposed heat exchanger, General view; in FIG. 2, node 1 in FIG. I - (a distribution device fixed in an annular partition); on fig.Z - type L

25 in FIG. Fig. 4 shows a distribution device installed in the inlet pipe of the annular space environment.

I Heat exchanger. Contains external

Claims (1)

30 1 and inner 2 buildings, supplying 3 and discharging 4 nozzles of the annular space environment, tube bundle 5, transverse annular partitions b and central partitions 7, Partition 6 at the liquid inlet is equipped with a distribution device made in the form of a nozzle 8 in which spiral-shaped guides 9 connected to the cone-shaped shield 10. The coolant is supplied through the nozzle 3, passes through the spiral grooves between the inner and outer housings, then enters the switchgear, where the vortex is with and fed into the inner housing 2 and washes the tube bundle 5. Then, through the gap formed by the central partition 7, the coolant passes to the next compartment 8 in the nozzle inlet pipe 3 may favorably be removable, which enhances maintainability teploob exchanger. The use of a switchgear allows the carrier to be heated, swirling it, at an angle close to the direct one, eliminating stagnant zones in the compartments between the partitions, which intensifies the heat exchange, reduces erosion and pipe surface contamination. Claim 1, a heat exchanger comprising a housing with inlet and outlet nozzles of a tubular and inter-tubular environment, a tube bundle arranged in a core, an empty tube and central and ring transverse partitions, characterized in that, in order to intensify heat exchange, a ring partition is installed side of the inlet pipe of the annular space environment, equipped with a distribution device, made in the form of a nozzle, fixed in the central hole of this partition, placed in the screw nozzle different guides and a cone-shaped flap a, 2 connected to the latter, 2, Heat exchanger according to claim 1, characterized in that the remaining annular partitions are also equipped with similar distribution devices, also provided with a similar switchgear. 4, the heat exchanger of claim 3, wherein the switchgear in the inlet manifold is provided with a flange, and the spigot slot is made under the switchgear fitting nozzle. Sources of information taken into account in the examination 1, German Patent 383334, class, 17 f 5/04, published, 1923, 2, USSR Author's Certificate 737771, class 28 D 7/00, 1978. fie.% - 6 fia.Z