A plate heat exchanger

Technical Field

The invention relates to according to claim 1 of the plate-type heat exchanger of the preamble.

Background Art

EP-B-608   195 discloses such a plate-type heat exchanger, the plate heat exchanger includes a plurality of heat exchanger plate, the heat exchanger plate is arranged next to each other, in order to form the is used for 1st 1st plate of the medium used for the gap and 2nd 2nd plate gap of the medium of the plate assembly. 1st plate and the 2nd plate gap gap in alternating sequence in the plate assembly. A certain number of port hole extends through the plate assembly, and form is arranged to deliver the 1st medium convey to 1st 1st plate in the space from the inlet passage and in the plate 1st 1st space of the outlet passage. Immersion tube is arranged in a port hole, a temperature sensor in the port extending in the hole.

In many heat exchanger applications, require a plate-type heat exchanger provided in any of the port holes various insertion element. Need of such insert element can be used for keeping the different types of functional devices, for example, such as EP-B-608   195 a temperature sensor is disclosed in. The background of the problem lies in the difficulty in the insertion element in a firm and efficient manner in the attached to the port hole.

Content of the invention

The purpose of this invention is to provide a kind of a plate-type heat exchanger is inserted into the element in the port holes of the reliable and effective attachment.

The purpose of through a start defined to realize the plate-type heat exchanger, the plate heat exchanger is characterized in that, the side portion including 1st in the vicinity of the annular main body from the annular ring-shaped groove and the annular groove extends from the outer edge of the flange at least one of the radial groove.

Such annular flange by combining plate-type heat exchanger can be arranged in the installation of the two heat exchanging board in between is easy and firm way is positioned in the port holes. Of course against each other after tightening the heat exchanger plate or by melting of the metallic material of the heat exchanger plate, but link, flange and therefore the position of the insert element is fixed to the port hole.

According to an embodiment of the invention, insert element is arranged to deliver the functional positioning a device in the port holes. Advantageously, functional device may include flow-guiding device and/or the sensing device or by the flow-guiding device and/or sensing device. Because the insert element, the desired function of the devices can be positioned in the port holes in the desired position.

According to an embodiment of the invention, the annular main body includes the function device is arranged to be kept in said attachment and the attachment component in the port holes. The attachment component can be designed to function in the insert element of the device for permanent attachment. As an alternative, the attachment part can be designed to function in the insert element releasable attachment. Advantageously, the insert element before installation in a plate-type heat exchanger, the functional device can be attached in the insert element of the attachment component.

According to an embodiment of the invention, the suspending part includes arranged to cooperate with the corresponding screw thread cooperation device with the function of the screw thread, wherein the thread forming screw thread joint. Advantageously, a component may include attachment of the functional device corresponding to the outer screw thread of the internal thread of the collaboration. The threaded joint with this kind of circumstances, function device to be easily and can be releasably attached in the insert element.

According to an embodiment of the invention, the suspending part includes arranged to cooperate with the corresponding device with the function of the bayonet coupling members (bayonet) 2nd 1st bayonet coupling member of the collaboration, wherein these components form a bayonet coupling. With this kind of bayonet coupling in the circumstances, the function device to be easily and can be releasably attached in the insert element.

According to an embodiment of the invention, the suspending part includes arranged to co-operate with a corresponding surface of the device with the function of the surface of the collaboration, wherein these surface forms a press-fit. Therefore, can be pressed against each other for both of the surfaces of the functional device according to the pressure maintained in the inserted element. According to this embodiment, can also be through the device with the function of the insert element to attachment.

According to an embodiment of the invention, functional device comprises a flow-guiding device. Advantageously, the plate type heat exchanger can be divided into 1st and 2nd part of the heat exchanger part of the heat exchanger, the 1st heat exchanger located between each other a group of heat exchanger plate, and 2nd heat exchanger located next to each other comprises a set of heat exchangers to the other, wherein the insertion element is in the 1st heat exchanger part of the heat exchanger and between the 2nd, and 1st medium arranged to guide the part of the heat exchanger through the 1st 1st plate in the direction of the gap and the part of the heat exchanger passes through the 2nd 1st plate gap in the opposite direction.

According to an embodiment of the invention, flow-guiding device includes the valve, the valve is disposed into the throttle (throttle) the at least one port hole, to at least partially prevent 1st medium passes through the at least one port hole. The oil used for cooling the in the plate-type heat exchanger, when the temperature of the oil is relatively low, directly through the port holes needs to be able to transmit at least a portion of the oil, and therefore the cooling demand is relatively small. If all of the oil are passed to the heat exchanger, is obtained by the relatively high pressure drop, and this can be avoided by means of the following valve, through the gap through the plate to transmit at least a portion of the through the valve. Advantageously, the valve can be arranged to respond to the temperature of the 1st medium reduces expenses to state constant temperature valve of the port hole.

According to an embodiment of the invention, side 2nd 1st side and parallel to each other.

According to an embodiment of the invention, heat exchanger plate and is inserted into the element through the melting of the metal material (for example, through brazing) is permanently connected to each other, wherein the 1st side permanently connected to the two heat exchanger on one of the plates, and 2nd side permanently connected to the two heat exchanger plate on the another one in the.

According to an embodiment of the invention, the annular groove and the radial groove can be has the following depth, that is, after melting the metal material will not fill the groove.

According to an embodiment of the invention, of the 2nd side is flat.

According to an embodiment of the invention, the port hole is formed is arranged to deliver the 2nd medium convey to 2nd 2nd plate in the space from the inlet channel and in the 2nd plate gap 2nd outlet passage of the transmission.

Description of drawings

By now the description of the various embodiment and the Figure attached to this to more clearly explain the invention.

Figure 1 diagrammatically discloses according to the present invention the front view of plate heat exchanger, wherein the insert element has 1st metatypic.

Figure 2 diagrammatically discloses the Figure 1 on the line in a cross section view of the II-II.

Figure 3 diagrammatically discloses Figure 1 and Figure 2 of the plate heat exchanger in the front view of the insert element.

Figure 4 diagrammatically discloses the Figure 3 on the line in a cross section view of the IV-IV.

Fig. 5 diagrammatically discloses according to the present invention the front view of plate heat exchanger, wherein the insert element has modified 2nd function device.

Figure 6 diagrammatically discloses the Figure 5 the line in a cross section view of the VI-VI.

Figure 7 diagrammatically discloses Figure 5 and Figure 6 of the plate heat exchanger in the front view of the insert element.

Figure 8 diagrammatically discloses the Figure 7 on the line in a cross section view of the VIII-VIII.

Figure 9 diagrammatically discloses according to the present invention the front view of plate heat exchanger, wherein the insert element has modified 3rd function device.

Figure 10 diagrammatically discloses the Figure 9 on the line in a cross section view of the X-X.

Figure 11 diagrammatically discloses Figure 9 and Figure 10 of the plate heat exchanger in the front view of the insert element.

Figure 12 diagrammatically discloses the Figure 11 on the line in a cross section view of the XII-XII.

Mode of execution

Figure 1 and Figure 2 discloses includes having a plurality of heat exchanger plate 2 of the plate assembly 1 of the plate heat exchanger, heat exchanger plate is in a known way to the compression molding, and includes a heat transfer surface and the edge of the flange, the heat transfer surface is preferably having compression molded ridge and valley corrugated (not disclosed), edge flange in a disclosed embodiment is a bent. Two external heat exchanger plate 2 ', 2' ' form a plate assembly 1 of the end plates are removed. Two external heat exchanger plate 2 ', 2' ' for example, in thickness and/or with regard to the remaining heat exchanger plate 2 of a different design. For example, they can be flat or substantially plain. Also possible is, closely against the corresponding recent heat exchanger plate 2 to provide two external heat exchanger plate 2 ', 2' ', in order to in the external heat interchanger board 2 ', 2' ' with the recent heat exchanger plate 2 the gap does not exist between the board.

Heat exchanger plate 2 in the plate assembly 1, which is the next to each other, in order to form and used for 1st 1st plate gap of the medium 3 and is used for 2nd 2nd plate gap of the medium 4. 1st plate gap 3 and 2nd plate gap 4 is provided in an alternating order in the plate assembly 1 in, in other words, every other plate 1st plate gap gap is 3, and every other plate gap is gap 2nd plate 4, see Figure 2.

Plate-type heat exchanger includes extends through the plate assembly 1 of a certain number of port holes. For forming port holes in the plate 1st 1st medium convey to the space 3 in the 1st inlet channel 5 and is used for the plate 1st 1st medium from space 3 the 1st transmitted in the outlet passage 6. Port hole also formed for the 2nd medium is transmitted to the 2nd plate gap 4 in the inlet channel and 2nd 2nd 2nd space from the medium 3 in the 2nd outlet channel of the transmission. It is possible to, for example, save form the 2nd inlet channel 7 and the 2nd outlet channel 8 of the port hole, and by the plate assembly 1 to the side of gap 2nd plate 4 the inlet and outlet.

Inlet passage and outlet passage 5-8 by each heat exchanger plate 2 (may be in addition to such as from the following more clearly see that the external heat exchanger plate 2 ', 2' ' in one or two outer) opening the corresponding port 9 (see Figure 3) is formed.

Plate-type heat exchanger can be used for all types of medium. One example of the application domain of the oil cooler, wherein the 1st medium is oil to be cooled, and 2nd medium is a cooling medium, for example, water. Will note that is, plate-type heat exchanger can be used for other applications, such as, the regional network or local heating in the heating network, for example, in the heat pump plant, in the industrial process, is used for heating tap water, for use in vehicle, such as cooling and/or heating.

In a disclosed embodiment, heat interchanger board 2, 2 ', 2' ' through for example, brazing, gluing or welding the permanently connected to each other. However, the attention is, the method can also apply to a way in the other (such as, by means of tiebolts) of the plate type heat exchanger are held together.

Plate-type heat exchanger also comprises an insertion element 10, insert element 10 is set for the 1st medium in one of the port holes. Insert element 10 lies in the function device for the purpose of 20 in position in the port holes. Function device 20 to the plate-type heat exchanger to provide more multi-function or an additional function. For additional function can be, for example, flow-guiding function, and/or passive, for example, the sensing function.

Insert element 10 consists of a ring-shaped body 11 and an annular flange 12, the annular flange 12 from the ring-shaped main body 11 projecting outwards. The annular body 11 and the annular flange 12 in a disclosed embodiment is designed to be one piece. However, these two elements also can be mounted to the insert element 10 on the two separate parts.

The annular main body 10 includes the function device is arranged to be 20 the attachment and maintain the attachment member in the port holes. In fig. 1 to fig. 4 in the disclosed embodiment, the suspending part includes arranged to cooperate with the corresponding screw thread cooperation device with the function of the screw thread. The attachment component with the corresponding screw thread is arranged to thread together form a Figure 3 and Figure 4 diagrammatically pointed out that in the threaded joint 13.

Insert element of the annular flange 12 provided on the plate assembly 1 the two heat interchanger board in 2 between. In a disclosed embodiment, the annular flange 12 located, at least partially, in a space 1st plate 3 in. The annular flange 12 has a 1st side 12a and the corresponding 2nd side 12b, by its associated space surrounded by the plate 1st 3 two heat interchanger board 2 in the corresponding one.

In a disclosed embodiment, insert element 10 is permanently connected to the two adjacent heat exchanger plate 2 on. Furthermore, side 1st 12a permanently connected to two heat interchanger board 2 on one of the, and 2nd side 12b is permanently connected to the two heat interchanger board 2 one on the other. The permanent connection can be combined to realize the installation of the plate-type heat exchanger, and the component through the above-mentioned melting of the metal material of the is connected to the each other. As an alternative, if the plate-type heat exchanger by means of tiebolts are kept together, is inserted into the element may be through the annular flange 12 is clamped in two adjacent heat exchanger plate 2 to keep between.

Function device 20 can be advantageously inserted in the element 10 is mounted to the heat interchanger board 2 before the attachment of the plug-in element 10 in. However, likely that, in the insertion element 10 has been installed in a plate-type heat exchanger, the function device 20 mounted on the insertion element 10 in. The disclosed embodiments also allow function device 20 from the port hole in the position of the plate-type heat exchanger disassembly or removal of insert element   10 is replaced under the condition of.

Such as in particular in Figure 5, Figure 3, Figure 7 and Figure 11 of that seen in the, annular flange 12 of the side 1st 12a included in the ring-shaped body 11 an annular groove in the vicinity of the 15, from the annular groove and 15 extending to the annular flange 12 of the outer fringe of the six radial grooves 16. An annular groove 15 provided in the following manner on or inserted through the insertion element 10 the radius of the central axis of the is as follows, to make the groove 15 fully or in part in the opening in the port status, and of radial grooves 16 can be provided in order to located heat interchanger board 2 port between the opening 9 at the outer side of (see Figure 3). Groove 15 and 16 can have the same depth. More than or less than six radial groove 16 can be from the annular groove 15 extends. In the disclosed embodiment, the annular flange 12 of the side 2nd 12b of the fluid.

In fig. 1 to fig. 4 in the embodiment disclosed in the, function device 20 includes a flow-guiding device. Here, plate-type heat exchanger is divided into 1st part of the heat exchanger 1a and 2nd part of the heat exchanger 1b. Insert element 10 is set in the 1st part of the heat exchanger 1a and the 2nd heat exchanger part 1b between, and part formed in the 1st heat exchanger 1a and the 2nd heat exchanger part 1b or the restriction device between the separating device. Insert element 10 is arranged to guide the 1st medium, passes through the 1st to the part of the heat exchanger 1a in the plate 1st space 3 will be in the direction of its transfer, along the and part passes through the 2nd heat exchanger 1b in the plate 1st space 3 in the opposite direction.

Therefore, 1st inlet passage 5 and outlet passage 1st 6 will be located in the same hole in the port, wherein the inlet channel from one side of the plate-type heat exchanger extending through the 1st heat exchanger part 1a 1st of the external heat exchanger plate 2' and heat interchanger board 2 until the insert element 10. 1st outlet channel 6 from the insertion element 10 extends through the 2nd heat exchanger part 1b of the heat exchanger plate 2, 2nd external heat exchanger plate 2 '' , and a 2nd left side of the plate heat exchanger. The 1st port hole also forming part of the heat exchanger 1a in the plate 1st space 3 and the 2nd heat exchanger 1b in the plate 1st space 3 which is connected with the internal passage 1st 5a. 1st internal passage 5a extends through the in addition to two external heat exchanger plate 2 'and 2' ' all heat interchanger board 2, this is in Figure 2 and Figure 6 that in.

Therefore, transmitted to the 1st inlet passage 5 and reaches the insert element 10 of the 1st transmitted to the annular groove 15 in, and from the annular groove 15 is further transmitted to the radial groove 16 and from the radial grooves 16 in the transmission. This implies that the 1st space is transmitted to the 1st plate 3 in, insert element 10 of the annular flange 12 is located in the 1st plate gap 3 in. In this way ensure that is, not a plate gap 3, 4 by the insert element 10 blocking.

In fig. 1 to fig. 4 in the embodiment disclosed in the, function device 20 includes the valve 21, the valve 21 is arranged to throttle a port hole (in the disclosed embodiment for the 1st inlet channel 5), so as to at least partly prevent the 1st medium passes through the port hole. Valve 21 may have a suitable design and Figure 4 the illustrative embodiment disclosed in. In this embodiment, the valve 21 may include an opening or closing a valve opening 23 of the valve body 22. Spring 24 acts on the valve body 22 the upper, and in Figure 4 is in the closed position of the pressing the spring. Valve 20 can be a thermostatic valve, the valve is arranged to depend on the temperature of the 1st medium to throttle port hole. Such thermostatic valve can be by the temperature-sensitive spring 24 to achieve, and in the embodiment, when the 1st the temperature of the medium drops below the predetermined level, thermostatic valve can be pressed back into the open position. Spring 24 may be made of bi-metal or memory metal.

Therefore, utilizing this kind of valve, when the 1st the temperature of the medium exceeds a certain level, and require cooling 1st medium, through the closed valve 20, 1st 1st through the transmission medium can be part of the heat exchanger 1a and part through the 2nd heat exchanger 1b. If 1st the temperature of the medium in the following to a predetermined level, then the valve 21 open, and the 1st medium can directly from the 1st inlet passage 5 is transmitted to the 1st outlet channel 6, and the gaps do not pass through the 1st plate 3.

Fig. 5 to fig. 8 of the embodiment disclosed in fig. 1 to fig. 4 of the embodiment of the of the difference lies in the function device 20 is designed to flow tube 28. The flow tube 28 by means of a press-fit 29 attached to the attachment component in the form of plug-in element 10 in, i.e., insert element 10 of the ring-shaped body 11 with the flow tube 28 of the corresponding external circular or may be a tapered surface or may be an inner circular in collaboration with a cone surface. Partial surfaces from one another, in order to firmly the flow passages 28 kept in the insert element 10 in. It will be noted that, in fig. 5 to fig. 8 in this embodiment, attachment member can also include screw thread joint.

Therefore, the flow tube 28 positioned in the 1st inlet channel 5 in the port holes. 1st medium in the flow tube 28 to flow into the outer side of the 1st inlet channel 5 and part flows into the 1st heat exchanger 1a (i.e., is located within an insertion element 10 those upstream of) the gap in the plate 1st 3 in. Furthermore, medium through the 1st 2nd part of the heat exchanger 1b 1st plate gap of 3 to the 1st outlet channel 6 in, and then through the insert element 10 and the flow tube 28 from a plate type heat exchanger of the transmission. In this embodiment, 1st inlet channel 5 in the extension of the external heat exchanger plate 2 '' omits port opening 9.

Fig. 9 to fig. 11 with the embodiment disclosed in fig. 1 to fig. 8 of the embodiment of the disclosed in the difference lies in the function device 20 does not include any flow-guiding device, but rather comprises a passive sensing device. In a disclosed embodiment, function device 20 includes 1st arranged to detect the temperature of the medium of the temperature sensor 31. The sensed temperature can be used for the control valve 32, the valve 32 controlling the gap through the 2nd plate 4 of the stream. The temperature sensor 31 by means of a hub 32 kept in the insert element 10 in, hub 32 then by means of a suitable number (for example, three) of the nail 33 maintain, nail 33 are each connected to the ring 34 is. In the case of this embodiment, insert element 10 is open, in other words, 1st medium can directly flows through the insert element 10.

In fig. 9 to fig. 11 in the embodiment disclosed in the, attachment part includes 1st bayonet coupling portion 38 of the bayonet coupling unit 37, the 1st bayonet coupling portion 38 for example comprises a function device 20 of the two pin, and arranged to cooperate with the corresponding 2nd bayonet coupling portion 39 cooperate, the 2nd bayonet coupling portion 39 includes, for example, the annular body 11 of two of the grooves in. In a disclosed embodiment, sells from the link 34 highlight. It will be noted that, in fig. 9 to fig. 11 in the embodiment of is disclosed in, as an alternative, attachment part can be alternatively comprises a threaded joint 13 or press-fit 29. External heat exchanger plate 2 '' in this embodiment is complete, i.e., there is no port holes thereof.

The invention is not limited to the disclosed embodiments, but may be within the scope of the claim annexed variations and modifications.