CN212931110U - Connecting pipe reinforcing structure of plate heat exchanger - Google Patents
Connecting pipe reinforcing structure of plate heat exchanger Download PDFInfo
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- CN212931110U CN212931110U CN202021543875.3U CN202021543875U CN212931110U CN 212931110 U CN212931110 U CN 212931110U CN 202021543875 U CN202021543875 U CN 202021543875U CN 212931110 U CN212931110 U CN 212931110U
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- heat exchanger
- end plate
- fixing piece
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Abstract
The utility model relates to a plate heat exchanger's takeover reinforced structure belongs to plate heat exchanger technical field. Plate heat exchanger includes front and back two end plates, heat transfer slab, takes over, and heat transfer slab lamination is between front and back two end plates, takes over the angular hole intercommunication that passes end plate and heat transfer slab, its characterized in that: the end part of the connecting pipe penetrating through the end plate is formed into a flanging, and the flanging is tightly attached to the end plate, so that the internal reinforcement of the connecting pipe is realized; the connecting pipe is exposed outside the pipe body of the end plate and is held tightly through the fixing piece, and the fixing piece is tightly attached to the end plate, so that the external reinforcement of the connecting pipe is realized. The internal reinforcement is realized through the turn-ups, and the turn-ups has replaced traditional thin wall socket ring, and turn-ups and takeover integrated into one piece have thoroughly avoided traditional takeover and thin wall socket ring welded position to take place the drawback of leaking easily. The external reinforcement is realized by the fixing piece. The internal and external reinforcement of the connecting pipe does not involve the change of the structures of the end plate and the heat exchange plate, so that the connection pipe is not limited by the type of the plate heat exchanger and only needs to be matched with the specification of the connecting pipe.
Description
Technical Field
The utility model belongs to the technical field of plate heat exchanger, concretely relates to plate heat exchanger's takeover reinforced structure.
Background
The detachable plate type heat exchanger generally comprises a front end plate, a rear end plate, a plate sheet, a rubber strip, a guide rod, a compression bolt, a connecting pipe and a thin-wall sleeve ring, wherein the plate sheet is laminated between the front end plate and the rear end plate, the rubber strip is installed at the corner hole of the plate sheet and then directly compressed on the thin-wall sleeve ring, the thin-wall sleeve ring is tightly attached to the end plate, and the connecting pipe is directly welded with the thin-wall sleeve ring.
The connecting pipe is divided into an inlet connecting pipe and an outlet connecting pipe, a medium enters the heat exchanger from the inlet connecting pipe, flows through the inlet thin-wall sleeve ring, then enters the heat exchange plate group, and then flows out from the outlet thin-wall sleeve ring and the outlet connecting pipe. In the whole circulation process, the medium is respectively contacted with the inlet connecting pipe, the inlet thin-wall sleeve ring, the sheet, the adhesive tape, the outlet thin-wall sleeve ring and the outlet connecting pipe, and is completely isolated from the front end plate and the rear end plate. The materials of all the parts are selected, and the front end plate and the rear end plate are generally only required to adopt Q235B or Q345R because the corrosion of media is not considered. The connecting pipe, the thin-wall sleeve ring, the sheet and the adhesive tape need to be medium corrosion resistant, wherein the connecting pipe, the thin-wall sleeve ring and the sheet are generally made of the same material.
When the detachable plate heat exchanger is used for a unit, the detachable plate heat exchanger is in butt joint with unit equipment through a connecting pipe, and the connecting pipe directly bears most of the weight of the unit equipment. The connecting pipe is generally in hard connection with a unit pipeline, and vibration generated when equipment such as a unit water pump and the like operates can be directly transmitted to the connecting pipe, so that the connecting pipe additionally bears large tensile force, shearing force and vibration in the operation process, and the welding position of the connecting pipe and the thin-wall sleeve ring is easy to crack, so that medium leakage is caused. Therefore, it is necessary to reinforce the connection pipe to ensure the reliability of the sealed connection between the connection pipe and the heat exchanger.
From a material point of view: when the connecting pipe, the thin-wall sleeve ring and the plate sheet are made of 304L and 316L materials to meet the working condition, the connecting pipe can be directly welded on the end plate inside and outside to ensure the firmness of the connecting pipe. At the moment, the welding seam between the connecting pipe and the thin-wall sleeve ring only needs to ensure the sealing property, does not directly receive force, and has high reliability and long service life. When the heat exchange medium contains chloride ions with high concentration, the materials of 304 and 316L cannot meet the requirement of corrosion resistance, and titanium materials are needed to be adopted for the connecting pipe, the thin-wall sleeve ring and the plate. The titanium material and the carbon steel have poor weldability, the welding seam is easy to crack, the welding strength is low, the stress borne by the connecting pipe is completely concentrated at the position of the welding seam between the connecting pipe and the thin-wall sleeve ring, and the welding seam is easy to crack under stress, so that the medium leakage is caused.
When the reinforcement of the nozzle cannot be effectively achieved from a material point of view, the reinforcement of the nozzle needs to be considered from a structural point of view.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned prior art, the utility model discloses a realize consolidating to plate heat exchanger's takeover from structural angle.
The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides a plate heat exchanger's takeover reinforced structure, plate heat exchanger includes front and back both ends board, heat transfer slab, takeover, and heat transfer slab lamination is between front and back both ends board, and the takeover passes the angular hole intercommunication of end plate and heat transfer slab, its characterized in that: the end part of the connecting pipe penetrating through the end plate is formed into a flanging, and the flanging is tightly attached to the end plate to realize the internal reinforcement of the connecting pipe; the connecting pipe is exposed outside the pipe body of the end plate and is held tightly through the fixing piece, and the fixing piece is tightly attached to the end plate, so that the external reinforcement of the connecting pipe is realized.
Preferably, the fixing member is welded and fixed to the end plate.
One embodiment of the present fastener: the fixing piece is in interference fit with the connecting pipe.
The second embodiment of the fastener of the present application: the fixing piece is in threaded connection with the connecting pipe.
The third embodiment of the fixing member of the present application: the fixing piece is two oppositely combined clamping pieces, and the two clamping pieces are locked through clamping bolts.
The fixing piece is made of a material which is easy to weld with the end plate.
Compared with the prior art, the utility model has the advantages of:
(1) the inner side and the outer side of the opposite end plates of the butt joint pipe are respectively reinforced, so that the firmness of the joint pipe is improved, the pressure bearing reliability of the plate heat exchanger is improved, and the service life is prolonged.
(2) The internal reinforcement is realized through the turn-ups, and the turn-ups has replaced traditional thin wall socket ring, and turn-ups and takeover integrated into one piece have thoroughly avoided traditional takeover and thin wall socket ring welded position to take place the drawback of leaking easily.
(3) The external reinforcement is realized through the fixing piece, and the fixing piece is welded and fixed with the end plate and tightly holds the pipe body of the connecting pipe.
(4) The internal and external reinforcement of the connecting pipe does not involve the change of the structures of the end plate and the heat exchange plate, so that the connection pipe is not limited by the type of the plate heat exchanger and only needs to be matched with the specification of the connecting pipe.
Drawings
Fig. 1 is an axial sectional view of a connecting pipe in an embodiment of the present invention;
fig. 2 is a schematic view illustrating an interference fit between the connecting tube and the fixing member in the embodiment of the present invention;
FIG. 3 is a schematic view of the embodiment of the present invention in which the connecting tube and the fixing member are engaged by threads;
fig. 4 is a schematic diagram of the embodiment of the present invention in which the connecting pipe and the fixing member are clamped by involution.
In the figure: the connecting pipe is 1, the flanging is 2, the fixing piece with the interference fit 301, the threaded fixing piece 302, the upper clamping fixing piece 303, the lower clamping fixing piece 304, the end plate 4 and the clamping bolt 5.
Detailed Description
The invention will be described in further detail with reference to the following examples, which are given by way of illustration and are intended to be illustrative of the invention and should not be construed as limiting the invention.
When a traditional detachable plate type heat exchanger meets a medium containing chloride ions with high concentration, connecting pipes, thin-wall sleeve rings and plate blanks processed by 304 and 316L materials cannot meet the working condition of medium corrosion resistance, and the connecting pipes, the thin-wall sleeve rings and the plate sheets need to be made of titanium materials with better corrosion resistance. While the end plates still use carbon steel to ensure lamination strength. Considering the defects of poor welding matching and low welding strength of the titanium material and the carbon steel, the stressed connecting pipe needs to be structurally reinforced.
The embodiment relates to a detachable plate heat exchanger for reinforcing the inside and the outside of a connecting pipe, the welding of the end part of the connecting pipe 1 and a thin-wall sleeve ring is cancelled, the integral forming of the connecting pipe 1 is changed, a flanging 2 is formed by the end plate of the connecting pipe 1 penetrating through the end plate, the flanging 2 is tightly attached to the end plate 4, and the internal reinforcement of the titanium connecting pipe is realized. The pipe body of the connecting pipe 1 exposed outside the end plate 4 is fixed through a fixing piece, and then the fixing piece is welded with the end plate 4, so that the external reinforcement of the connecting pipe 1 is realized.
For external reinforcement, the fixing piece adopted for external reinforcement of the connecting pipe 1 is the fixing piece 301 in interference fit, and the connecting pipe 1 is fixed through interference fit.
For external reinforcement, the fastener used for external reinforcement of the adapter tube 1 is a threaded fastener 302, and the adapter tube 1 is fixed by thread fit.
For external reinforcement, the fixing parts used for external reinforcement of the adapter tube 1 are an upper clamping fixing part 303 and a lower clamping fixing part 304 which are oppositely arranged, and the adapter tube 1 is locked by the upper clamping fixing part 303 and the lower clamping fixing part 304 through a clamping bolt 5.
The fixing piece is made of the same material as the end plate so as to realize firm welding of the fixing piece and the end plate.
Through the internal and external reinforcement of the butt joint pipe, the stability of the joint pipe is improved from the aspect of the structure, and the overall strength of the plate heat exchanger is prolonged.
Although the preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a plate heat exchanger's takeover reinforced structure, plate heat exchanger includes front and back both ends board, heat transfer slab, takeover, and heat transfer slab lamination is between front and back both ends board, and the takeover passes the angular hole intercommunication of end plate and heat transfer slab, its characterized in that: the end part of the connecting pipe penetrating through the end plate is formed into a flanging, and the flanging is tightly attached to the end plate to realize the internal reinforcement of the connecting pipe; the connecting pipe is exposed outside the pipe body of the end plate and is held tightly through the fixing piece, and the fixing piece is tightly attached to the end plate, so that the external reinforcement of the connecting pipe is realized.
2. A connection pipe reinforcement structure of a plate heat exchanger according to claim 1, characterized in that: the fixing piece is welded with the end plate.
3. A connection pipe reinforcement structure of a plate heat exchanger according to claim 1, characterized in that: the fixing piece is in interference fit with the connecting pipe.
4. A connection pipe reinforcement structure of a plate heat exchanger according to claim 1, characterized in that: the fixing piece is in threaded connection with the connecting pipe.
5. A connection pipe reinforcement structure of a plate heat exchanger according to claim 1, characterized in that: the fixing piece is two oppositely combined clamping pieces, and the two clamping pieces are locked through clamping bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021543875.3U CN212931110U (en) | 2020-07-30 | 2020-07-30 | Connecting pipe reinforcing structure of plate heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021543875.3U CN212931110U (en) | 2020-07-30 | 2020-07-30 | Connecting pipe reinforcing structure of plate heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212931110U true CN212931110U (en) | 2021-04-09 |
Family
ID=75333084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021543875.3U Active CN212931110U (en) | 2020-07-30 | 2020-07-30 | Connecting pipe reinforcing structure of plate heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212931110U (en) |
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2020
- 2020-07-30 CN CN202021543875.3U patent/CN212931110U/en active Active
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