CN1017184B

CN1017184B - Heat exchanger and its construction method

Info

Publication number: CN1017184B
Application number: CN 89100964
Authority: CN
Inventors: 彭蒂·劳尼奥
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-01-13
Filing date: 1989-01-13
Publication date: 1992-06-24
Also published as: CN1044163A

Abstract

The present invention relates to a method for manufacturing a heat exchanger and a heat exchanger manufactured according to the method, the method comprises the following steps: corrugated heat transferring boards which are basically same are mutually stacked, and the edge parts of spaces among the boards, inlets for medium transference and outlet pipes (5, 6, 7, 8) are communicated. The space among the boards of each layer is used for a heat radiating medium to pass through, and another space among the boards with the separation of one layer is used for a heat absorbing medium to pass through. Slots of different boards are crossed according to a selected angle. A heat transferring board (1) which is basically circular or a regular or polygonal heat transferring board can be used. The directions of the slots can be selectively and mutually crossed in the mode of at least two different angles.

Description

Heat exchanger and its construction method

The present invention relates to a kind of heat exchanger and installation method, in this method essentially identical corrugated heat transfer plate piled up mutually and the edge in the space between plate is communicated with import and outlet conduit, so that heat exchange medium is passed through, like this, the heat release MEDIA FLOW is by the plate spacing every one deck, and heat-absorbing medium stream is by the other plate spacing every one deck.

When needs carried out heat exchange between two kinds of flow medias, it was very effective adopting the heat-exchangers of the plate type of being made up of a plate that is stacked on another.Such heat exchanger for example is used for, and heat transmission medium is the space-heating system of water.Medium is this heat exchanger of water, and heat transfer coefficient can reach the scope of about 2500-3500W/mk under the middle pressure damaed cordition.

Existing heat-exchangers of the plate type, its plate is the square wave card that piles up mutually, and the ripple between the corrugated plating is identical with the direction on two of rectangle relative limits with the direction of groove, in this structure, plate is one and is stacked on another, so that the groove in adjacent two plates each other at an angle of 90.

When making heat exchanger, in order to obtain required best heat exchange effect, it is most important selecting the pressure loss of flow media and their heat transfer coefficient.These parameters can be regulated by selecting the distance between each heat transfer plate, the surface area and the wavy of plate of plate.But existing heat exchanger is selected in the size of each plate, selected the size of flow simultaneously after heat transfer parameter determined that just like this, these parameters just can not change again.In this case, if change the heat-transfer character of heat exchanger, just must reselect the size of plate according to new demand.Therefore, for every kind of different heat exchanger, when making heat exchanger plate, just need special deep-draw instrument.Because this instrument is very expensive, this has just limited the possibility of making various heat exchanger.

The objective of the invention is to solve the problems referred to above that in heat exchanger is made, exist.The characteristics of making the method for heat exchanger according to the present invention are that heat transfer plate piles up mutually singly, so just make between the groove of different plates to be in selected angle.Described angle has been determined the pressure loss and the heat transfer coefficient of flow media.Method for this purpose mainly adopts circular heat transfer plates or regular polygon heat transfer plate, and wherein the direction of groove is such, and the groove in the plate that promptly piles up mutually can be optionally each other with at least two kinds of different angular cross.

Bare bones of the present invention is that the appropriate design of heat transfer plate can make the groove in the different plates be stacked into two or more different angles mutually.This utilizes instrument a kind of or of the same race just identical plate can be made different heat exchangers with regard to meaning, this heat exchange tank has just provided different heat transfer characteristics with different angle between the groove.Therefore, this has just increased the possibility of making various heat exchanger under the situation that does not increase too many production cost greatly.

The present invention is suitable for adopting circular heat transfer plates most, so just can select the angle between the groove in the different plates in 0-90 ° successive range.Yet basic thought of the present invention also is suitable for adopting the polygon heat transfer plate of rule, although in this case between groove the selection of different angles be restricted.

When making heat exchanger according to method of the present invention, the angle between the groove in the heat transfer plate that piles up has mutually determined the heat-transfer character of heat exchanger.The edge of the plate that piles up mutually can be welded to one another together, form a fixing heat exchanger integral body, after this, the parameter of heat exchanger can not change again.

Heat exchanger is equipped with cavity body, they with plate between communicate every the space of one deck, two sides of stacking plate can constitute above-mentioned space, heat transmission medium just can enter space between plate through separately cavity body from two inlet ducts like this, and then arrives outlet conduit through cavity body separately.End plate can be installed in the stacked body upper and lower of plate, and these end plates can utilize pull bar that they are interfixed.

Utilize the mutual alignment of the above-mentioned cavity body of conversion, just might produce the heat exchanger of various performances.Can consider generally speaking the entrance and exit cavity body of heat release medium is arranged on the diagonally opposing corner position, and the entrance and exit cavity body of heat-absorbing medium also is arranged on and heat-absorbing medium cavity body diagonally opposing corner position at an angle of 90.Also can change above-mentioned position, promptly adopt other angle to replace 90 ° of angles arbitrarily.Also can allow cavity body not be in clinodiagonal position in addition, that is to say to allow the heat absorption and the entrance and exit cavity of heat release medium be in any a certain angle, rather than be in mutually on 180 ° the linear position.Utilize this change can make the distributary heat exchange become reverse-flow heat exchange, thereby can more make full use of the temperature difference between heat release circulation and the heat absorption circulation.

The present invention also comprises the heat exchanger of making according to the method described above.Comprise some existing parts in the past according to heat exchanger of the present invention, the entrance and exit pipeline of corrugated heat transfer plate that promptly pile up mutually, essentially identical and conveying heat transmission medium, described pipeline communicates with the stacked body sidepiece of plate, like this can be by the heat release MEDIA FLOW every the plate spacing of one deck, and another plate spacing every one deck can flow by heat-absorbing medium.For heat exchanger, importantly heat transfer plate can be almost circular, and when piling up mutually, makes the groove in the plate intersected with each other; Can be regular polygon also, and be stacked into stacked body, groove in the stacking plate be constituted each other greater than 0 ° but less than 90 ° angle with flat side.

With reference to the accompanying drawings, come the present invention is described in more detail by means of embodiment.

Fig. 1 represents the side-looking and the partial sectional view of heat exchanger of the present invention;

The heat exchanger of Fig. 2 presentation graphs 1 is along the cutaway view (Fig. 2 along continuous straight runs has rotated 45) of II-II among Fig. 1;

Fig. 3 and Fig. 4 schematically represent two heat exchangers of the present invention, and wherein the groove on the heat transfer plate is in different angles mutually, and others are consistent with the heat exchanger that Fig. 1 and Fig. 2 represent;

Fig. 5 and Fig. 6 schematically represent two heat exchangers of the present invention, wherein heat transfer plate be shaped as regular octagonal, their groove has two kinds of different angles;

Fig. 7 schematically represents a heat exchanger of the present invention, and wherein the inlet cavity body of heat release medium and heat-absorbing medium and outlet cavity body are arranged on the place each other in 45, and the heat exchanger of representing among others and Fig. 1 and Fig. 2 is consistent.

Fig. 1 and Fig. 2 represent a kind of heat exchanger, and wherein the most basic parts are the circular heat transfer plates 1 of piling up mutually.Plate 1 utilizes common corrugated plating cutting to form and all makes identical shaped.Just as shown in fig. 1, plate 1 piles up by this way mutually: the ripple of each piece corrugated plating and the ripple and the groove of groove and its neighbouring plate are intersected at an angle of 90.

As shown in the figure, column-shape curved surface plate 2 constitutes the part of heat exchanger housing, and heat transfer plate piles up mutually and uses the method for for example welding to be fixed on the column-shape curved surface plate 2 at their edge.The other part of shell is made of the column plates 3 of projection, and plate 3 and has smaller radius between above-mentioned column plates 2, and it is the outer wall of semi-cylindrical cavity body substantially that plate 3 constitutes four of heat exchangers.Cavity body 4 and the entrance and exit pipeline 5 that is used to carry the heat release medium and 6 and be used to carry the entrance and exit pipeline 7 and 8 of heat-absorbing medium to communicate.In the inside of each cavity body 4, the heat transfer plate that piles up mutually is an opening every the plate spacing of one deck, in order that make fluid flow to these spaces from cavity body, perhaps from these spatial flows to cavity body.Other that group between plate is then sealed every the plate spacing of one deck, enters these spaces in order that prevent MEDIA FLOW.Therefore, the space open to the heat release MEDIA FLOW then sealed concerning heat-absorbing medium stream.Equally, to the open space of heat-absorbing medium stream, concerning the heat release MEDIA FLOW, then seal.Such arrangement makes heat-absorbing medium pass through this heat exchanger with the heat release MEDIA FLOW through the different plate spacings every one deck, and this just makes their not mix mutually each other.In addition, the stacked body of plate encases its upper and lower by end plate 9, utilizes pull bar 10 that they are interfixed in the both sides up and down of the stacked body of plate again.

Among Fig. 2, the direction of the groove of heat transfer plate 1 is represented the groove of these two kinds of directions respectively each other at an angle of 90 with continuous straight line 11 and dotted line 12.But when making heat exchanger, the direction of these grooves and the angle between them can freely be selected, as just having shown two types heat exchanger in Fig. 3 and 4, the groove 11 of the heat transfer plate 1 that wherein piles up mutually and 12 direction are just different with shown direction among Fig. 2.Is similar at these heat exchangers of others and Fig. 1 with heat exchanger among Fig. 2, and all makes with identical circular wave heat transfer plate.

In Fig. 5 and Fig. 6, express two kinds of heat exchangers of the present invention, they are made with the regular polygon heat transfer plate, these two kinds of heat transfer plates be shaped as octagon, they are similar in this respect, but the heat exchanger among Fig. 5, when stacking plate, the

groove

11 and 12 that makes plate each other at an angle of 90, and the heat exchanger among Fig. 6, when stacking plate, the

groove

11 and 12 that makes plate is each other in 45.

In the heat exchanger of Fig. 2, the entrance and

exit pipeline

5,6 of heat release medium and the cavity body 4 that communicates with these pipelines are arranged on the position of diagonally opposing corner both sides; Equally, the entrance and exit pipeline 7,8 of heat-absorbing medium and the cavity body 4 that communicates with these pipelines are arranged on the position of diagonally opposing corner both sides, and with above-mentioned

pipeline

5,6 present positions at an angle of 90.But, the position of pipeline and cavity body can change, embodiments of the invention as shown in FIG. 7, the entrance and exit pipeline of two media remains on the position of clinodiagonal, but becomes 45 between the

pipeline

5,6 of the pipeline 7,8 of heat-absorbing medium and cavity body 4 and heat release medium and the cavity body 4.Consistent as for the heat exchanger that pile up circular heat transfer plates used among Fig. 7 and they with the heat exchanger shown in Fig. 1 and Fig. 2.

All can understand for the those skilled in the art, various different embodiment of the present invention are not limited only to above-mentioned described, but can carry out conversion within the scope of the claims.Therefore, the shape of heat transfer plate can not be circle or octagonal, for example also pentagonal heat transfer plate can be piled up mutually, and the groove that makes plate is each other in 36 ° or 72 ° of angles.In addition, also can increase the possibility of conversion, make the direction of groove be different from the direction at the edge of plate like this, stack plate reversedly every one deck then, they are stacked into stacked body by cutting polygon heat transfer plate.

Claims

1, a kind of heat exchanger mainly comprises the well-regulated corrugated heat transfer plate (1) that some are similar, and the trend of the groove between its ripple and ripple (11,12) is identical, and these plates pile up mutually; Also comprise the entrance and exit pipeline (5,6,7,8) of heat transmission medium, they communicate with the edge of described stacking plate, make every the plate spacing of one deck by the heat release MEDIA FLOW, and flow by heat-absorbing medium at other plate spacing every one deck;

It is characterized in that:

Described heat transfer plate (1) is circular basically, or causes the regular polygon at rare five angles;

Angulation is greater than 0 ° between the groove of described each adjacent panels (11,12), but is less than or equal to 90 °;

Described pipeline is to form by the paired cavity body (4) opposite each other of described stacking plate side is last, so that described heat release medium and heat-absorbing medium to be provided; Each described cavity body (4) is all led to described plate spacing every one deck, makes separately medium when flowing to these plate spacings from its described inlet (5,7) and then flowing out from described outlet (6,8), can pass its corresponding cavity body (4).

2, according to the described heat exchanger of claim 1, it is characterized in that, this heat exchanger is to be made by the heat transfer plate of circle (1), makes that the angle between the described groove (11,12) of different plates can be greater than 0 ° be less than or equal in 90 ° the successive range and selected.

According to claim 1 or 2 described heat exchangers, it is characterized in that 3, the edge of described heat transfer plate (1) is together fixed to one another, thereby make this heat exchanger form a single fixture.

According to the described heat exchanger of one of claim 1 to 3, it is characterized in that 4, be equipped with end plate (9) in the upper and lower of the stacked body of described plate, described end plate is interfixed it by the pull bar (10) of the stacked body sidepiece that is positioned at described plate.

5, a kind of installing method of heat exchanger according to claim 1, it is characterized in that, described heat transfer plate (1) is piled up mutually, make the described groove (11 of each plate that replaces, 12) groove with respect to its each contiguous plate constitutes selected angle, this angle has been determined the pressure loss and the heat transfer coefficient of flow media, and these plates can be stacked into the heat converter structure more than a kind of conversion each other, replace structure for each, its described groove (11, the angle that different selections is all arranged 12), this angle are greater than 0 ° but be less than or equal to 90 °.

6, in accordance with the method for claim 5, it is characterized in that, constitute described heat exchanger with circular heat transfer plates (1), make the angle between the described groove (11,12) of different plates can be greater than 0 ° be less than or equal in 90 ° the successive range and selected.

7, according to claim 5 or 6 described methods, it is characterized in that, the edge of the heat transfer plate (1) that piles up is mutually welded together, make it form single parts.

8, according to the described method of one of claim 5-7, it is characterized in that, side at described stacking plate, make it be formed into right cavity body (4), these cavity body (4) communicate with plate spacing every one deck, make to participate in medium that heat transmits and can pass described cavity body (4) separately respectively and enter space between described plate from described inlet duct (5,7), and then flow to described outlet conduit (6,8) by described cavity body separately.

9, according to the described method of one of claim 5-8, it is characterized in that, end plate is set in the upper and lower of the stacked body of described plate, and with pull bar that described end plate is fastened to each other.