FI80957C - ANORDNING FOER OEVERFOERING AV VAERME MELLAN OLIKA FLYTANDE MEDIA. - Google Patents

Description

1 80957

Device for transferring heat between different fluids

The present invention is directed to an apparatus for transferring heat between various fluids, such as sludge, wastewater, industrial process water or the like, wherein the heat transfer is adapted to be performed either between contaminated media or from contaminated media to a clean medium or vice versa.

A number of more or less technically complex heating devices are already known, such as, for example, U.S. Patent 4,141,412 and EP-A1-0 040 890.

It is an object of the present invention to provide a device with compact and efficient heat transfer while minimizing the risk of clogging.

The device according to the invention is characterized by what is stated in the appended claims.

The invention will now be described in more detail with reference to the accompanying drawing, in which Figure 1 shows a front view of the device with some parts cut away.

Figure 1 shows an apparatus in which a warm or cold medium is passed planarly over a plurality of parallel plates A. The plates A are superimposed with their intermediate channels B. The flow of the warm C medium D, respectively, takes place in a transverse flow and countercurrently along said channels B. The transfer of the warm C medium C cold medium from one plate to another takes place by means of four boxes E.

2 80957

Channels B can be implemented in different ways.

a) The channels can be connected either in parallel or in series.

b) The channels on the warm and cold side, respectively, are placed perpendicular to each other.

c) All the warm side to the cold side, respectively, the channels are clean and accessible from two sides simultaneously for cleaning F to stop.

d) The length, width and height of the ducts can vary indefinitely on both the hot and cold sides. The length, width and height of the ducts may be different on the warm and cold side, respectively.

e) The velocity of the medium in the bends G of the channels can be varied in relation to the velocity of the medium in the straight part of the channels' H.

f) The length and width of the ducts may vary or be adjusted after the devices have been put into operation in the form of a heat exchanger. This is achieved by making the channel walls I detachable.

g) The ducts (duct walls I) are clamped with a frame J, whereby complete sealing is achieved.

h) The duct wall I can be made according to either option 1 or option 2, as shown in Figure 1.

The design of the device, i.e. the heat exchanger, allows heat to be transferred from one medium to one or more media or from several media to one medium in one and the same device. The heat exchange can be performed e.g. between the incoming cold waste sludge and the outgoing hot waste sludge up to a certain technical / economic limit, after which the energy remaining in the outgoing hot waste sludge can be recovered by heat transfer, eg in a glycol circuit which preheats the cold air inlet. . If necessary, the cold medium can finally be heated by 3 80957 e.g. hot water from a boiler, a heat pump or the like. The heat transfer through the sludge / glycol circuit between the hot water, respectively, between the sludge takes place in the same way as with the sludge / sludge, and thus all the heat transfer takes place in one and the same device or heat exchanger.

One could think of an option that includes a heat pump. In such a case, the heat pump utilizes the outgoing warm sludge as a heat source. The heat from the heat pump can either heat the cold medium in the device or heat exchanger or transfer the heat to some other purpose, such as water heating, air heating or the like.

The invention is, of course, not limited to this embodiment, but can be varied within the scope of the invention.

Claims (2)

4 80957 1. A flat-panel plate for a medium-sized, medium-sized, high-pressure, industrial process or liquid medium, in which case a flat-panel plate with a cross-sectional frame (B), with a flat-panel plate, the flashing rod is fastened to a flat plate, which means that it can be used and / or the dimension of the fitting (I) is varied between the free frame (J). A plate heat exchanger for flowing media such as sludges, effluents, industrial process waters or the like, wherein guide walls are arranged between the plates, forming flow channels (B) with the plates, with connecting channels arranged on the edge of the plate for flow channels and with frames by which the control walls are clamped. that the positions and / or dimensions of the guide walls (I) can be changed with the frame (J) removed. Plate heat exchanger according to Claim 1, characterized in that the flow channels (B) are accessible via cleaning doors (F). 2. A flat plate according to claim 1, which comprises a connecting channel (B) and is preferably equipped with a ring (F). Il