CN210426236U - Connecting node of heat exchanger collecting pipe and external pipeline - Google Patents
Connecting node of heat exchanger collecting pipe and external pipeline Download PDFInfo
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- CN210426236U CN210426236U CN201921388883.2U CN201921388883U CN210426236U CN 210426236 U CN210426236 U CN 210426236U CN 201921388883 U CN201921388883 U CN 201921388883U CN 210426236 U CN210426236 U CN 210426236U
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- external pipeline
- pressing plate
- collecting pipe
- pressure plate
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Abstract
The utility model relates to the technical field of connection of a heat exchanger collecting pipe and an external pipeline, in particular to a connection node of the heat exchanger collecting pipe and the external pipeline, which is provided with the collecting pipe and the external pipeline, the collecting pipe is provided with a medium inlet and a medium outlet, and is characterized in that a pressing plate is arranged between the medium inlet and the medium outlet of the collecting pipe and the external pipeline, the lower end of the pressing plate is provided with an arc-shaped groove matched with the outer wall of the collecting pipe, the middle part of the pressing plate is provided with a pressing plate hole for the external pipeline to be inserted, the pressing plate at the lower end of the pressing plate hole is provided with a pressing plate counter bore with a diameter larger than that of the pressing plate hole, the lower end of the external pipeline extends into the pressing plate hole and the pressing plate counter bore in sequence, the outer wall of the external pipeline extending into the pressing plate counter bore is sleeved with, the sealing device has the advantages of simple structure, stable connection, good sealing effect, reduction of leakage risk and the like.
Description
Technical Field
The utility model belongs to the technical field of heat exchanger pressure manifold and outer section tube coupling technique and specifically relates to a simple structure, connect stable, sealed effectual, reduce the heat exchanger pressure manifold and the external pipeline connected node who leaks the risk.
Background
As is well known, a heat exchanger (heat exchanger) is a device for transferring part of heat of a hot fluid to a cold fluid, and is also called a heat exchanger, and the heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and many other industrial productions, and the heat exchanger can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in the chemical industry production, and is widely applied.
At present, the heat exchanger generally comprises the pressure manifold, the fin, the honeycomb duct, the fin is established between pressure manifold and honeycomb duct, the pressure manifold divide into entering portion and derivation portion, heat transfer medium gets into the fin by the entering portion and leads out by the derivation portion through the fin behind the honeycomb duct, be equipped with the external pipeline of entering medium and the external pipeline of derivation medium on the pressure manifold respectively, external pipeline is connected with the pressure manifold is perpendicular, current connected mode is generally to be connected with the pressure manifold through the perpendicular portion of spot welding or brazing with external pipeline, the in-process that the heat exchanger is using, because factors such as vibrations, external pipeline and pressure manifold cooperation department have the risk of leaking, in case leak, can cause scrapping of entire system, especially in the condition of oil cooling as the medium.
Disclosure of Invention
The utility model aims at solving the not enough of above-mentioned prior art, provide a simple structure, connect stable, sealed effectual, reduce the heat exchanger pressure manifold and the external pipeline connected node who leaks the risk.
The utility model provides a technical scheme that its technical problem adopted is:
a connection node of a heat exchanger collecting pipe and an external pipeline is provided with the collecting pipe and the external pipeline, the collecting pipe is provided with a medium inlet and a medium outlet, it is characterized in that a pressure plate is arranged between the medium inlet and the medium outlet of the collecting pipe and the external pipeline, the lower end of the pressure plate is provided with an arc-shaped groove matched with the outer wall of the collecting pipe, the middle part of the pressure plate is provided with a pressure plate hole for inserting an external pipeline, the pressure plate at the lower end of the pressure plate hole is provided with a pressure plate counter bore with the diameter larger than that of the pressure plate hole, the lower end of the external pipeline extends into the pressure plate hole and the pressure plate counter bore in sequence, the outer wall of the external pipeline extending into the pressure plate counter bore is sleeved with a welding ring, the lower end of the external pipeline sleeved with the welding ring is turned outwards to seal the welding ring in the pressure plate counter bore, an arc-shaped groove at the lower end of the pressure plate is connected with the collecting pipe through brazing, the welding ring is melted while the brazing welding is carried out, so that the melted welding ring is filled between the counter bore of the pressing plate and the external pipeline to realize further sealing.
External pipeline's external diameter and clamp plate on the clamp plate hole diameter the same, prevent to rock between external pipeline and the clamp plate hole, the stability of being connected between ring and clamp plate and the external pipeline is welded in the influence.
External pipeline lower extreme turn over outwards and turn over and roll over to the riveting structure, will weld the tight real sealed of ring between external pipeline and clamp plate counter bore, guarantee the leakproofness.
The clamp plate establish to aluminium system clamp plate, the ring of welding establish to the aluminium welding ring, guarantee connection stability.
The utility model is characterized in that a pressing plate is arranged between the medium inlet and outlet of the collecting pipe and the external pipeline, the lower end of the pressing plate is provided with an arc-shaped groove matched with the outer wall of the collecting pipe, the middle part of the pressing plate is provided with a pressing plate hole for the external pipeline to be inserted, the pressing plate at the lower end of the pressing plate hole is provided with a pressing plate counter bore with a diameter larger than that of the pressing plate hole, the lower end of the external pipeline extends into the pressing plate hole and the pressing plate counter bore in turn, the external pipeline outer wall extending into the pressing plate counter bore is sleeved with a welding ring, the lower end of the external pipeline after being sleeved with the welding ring is turned outwards to seal the welding ring in the pressing plate counter bore, the arc-shaped groove at the lower end of the pressing plate is connected with the collecting pipe through brazing, the welding ring is melted while the brazing welding is carried out, the outer diameter, prevent to rock between external pipeline and the clamp plate hole, influence and weld the stability of being connected between ring and clamp plate and the external pipeline, external pipeline lower extreme turn over outwards and turn over and roll over for the riveting structure, will weld the tight real sealing of ring between external pipeline and clamp plate counter bore, guarantee the leakproofness, the clamp plate establish to aluminium system clamp plate, the ring that welds establish to aluminium and weld the ring, guarantee connection stability, have simple structure, connect stably, sealed effectual, reduce advantages such as leakage risk.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial perspective view of a portion a in fig. 1.
Fig. 3 is a cross-sectional view of fig. 2.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in the attached drawings, the joint for connecting the collecting pipe and the external pipeline of the heat exchanger is provided with the collecting pipe 1 and the external pipeline 2, and the collecting pipe 1 is provided with a medium inlet and outlet 3, and is characterized in that a pressing plate 4 is arranged between the medium inlet and outlet 3 of the collecting pipe 1 and the external pipeline 2, the lower end of the pressing plate 4 is provided with an arc-shaped groove 5 matched with the outer wall of the collecting pipe 1, the middle part of the pressing plate 4 is provided with a pressing plate hole 5 for the external pipeline 2 to be inserted, a pressing plate counter bore 7 with the diameter larger than that of the pressing plate hole 5 is arranged on the pressing plate 4 at the lower end of the pressing plate hole 5, the lower end of the external pipeline 2 extends into the pressing plate hole 5 and the pressing plate counter bore 7 in sequence, a welding ring 8 is sleeved on the outer wall of the external pipeline 2 extending into the pressing plate counter bore 7, the lower end of the external pipeline 2 sleeved, the welding ring 8 is melted while the welding is performed by brazing so as to fill the melted welding ring 8 between the press plate counter bore 7 and the external pipeline 2, the external diameter of the external pipeline 2 is the same as the diameter of the press plate hole 5 on the press plate 4, the shaking between the external pipeline 2 and the press plate hole 5 is prevented, the stability of the connection between the welding ring 8 and the press plate 4 and the external pipeline 2 is affected, the lower end of the external pipeline 2 is turned outwards to form a riveting structure, the welding ring 8 is tightly sealed between the external pipeline 2 and the press plate counter bore 7, the sealing performance is ensured, the press plate 4 is arranged to be an aluminum press plate 4, the welding ring 8 is arranged to be an aluminum welding ring 8, the connection stability is ensured, the external pipeline 2 of the utility model is a heat exchange medium inlet and outlet interface connection pipeline, the press plate 4 is an external pipeline 2 root connection part reinforcing aluminum press plate 4, the collecting pipe 1 is a single-composite layer circular collecting pipe 1, the welding ring 8 is a low-temperature brazing circular aluminum welding ring 8.
The utility model discloses an installation does: the method comprises the steps of processing a press plate hole 5 on a press plate 4, processing an arc-shaped groove 5 matched with the outer wall of a collecting pipe 1 at the lower end of the press plate 4, after the press plate hole 5 processes an inner press plate counter bore 7 structure, installing a straight-line section part of an external pipeline 2 into the press plate counter bore 7, enabling the installing part of the external pipeline 2 to be flush with the lower end of the press plate counter bore 7, sleeving a welding ring 8 at the outer diameter part of the end part of the external pipeline 2 in the press plate counter bore 7 after installation, matching and positioning mutually, pressurizing and forming the part of the end part of the external pipeline 2 contacted with the welding ring 8 into a folded edge turning structure (namely turning outwards), fixing the welding ring 8 in a sealing space between the external pipeline 2 and the press plate counter bore 7, then matching and fixing the arc-shaped groove 5 part of a combined part press plate 4 with the collecting pipe 1, and entering a, forming effective sealing effect, welding the pipeline, the pressing plate 4 and the collecting pipe 1 into a whole, enhancing the connecting strength between the external pipeline 2 and the collecting pipe 1, connecting the external pipeline 2 with the collecting pipe 1 through the pressing plate 4, riveting the external pipeline 2 and fixing the external pipeline 2 in a manner of matching with a welding ring 8 between the pressing plate counter bore 7, increasing the structural strength, reducing the leakage risk, filling the matching gap between the pipeline and the pressing plate 4 and fixing the pipeline through an aluminum welding ring 8, the utility model discloses because the pressing plate 4 is arranged between the medium inlet/outlet 3 of the collecting pipe 1 and the external pipeline 2, the lower end of the pressing plate 4 is provided with an arc-shaped groove 5 matched with the outer wall of the collecting pipe 1, the middle part of the pressing plate 4 is provided with a pressing plate hole 5 for the external pipeline 2 to be inserted, the pressing plate 4 at the lower end of the pressing plate hole 5 is provided with a pressing plate counter bore 7 with a diameter larger than that of the pressing plate hole 5, the outer wall of an external pipeline 2 extending into a press plate counter bore 7 is sleeved with a welding ring 8, the lower end of the external pipeline 2 sleeved with the welding ring 8 is outwards turned to seal the welding ring 8 in the press plate counter bore 7, an arc-shaped groove 5 at the lower end of a press plate 4 is connected with a collecting pipe 1 through brazing, the welding ring 8 is melted while brazing welding, so that the melted welding ring 8 is filled between the press plate counter bore 7 and the external pipeline 2 to realize further sealing, the outer diameter of the external pipeline 2 is the same as the diameter of a press plate hole 5 on the press plate 4, the external pipeline 2 and the press plate hole 5 are prevented from shaking to influence the stability of connection between the welding ring 8 and the press plate 4 and the external pipeline 2, the lower end of the external pipeline 2 is outwards turned to be of a riveting structure, the welding ring 8 is tightly sealed between the external pipeline 2 and the press plate counter bore 7 to ensure the sealing performance, the press plate 4, weld ring 8 establish to aluminium and weld ring 8, guarantee connection stability, have simple structure, connect stably, sealed effectual, reduce advantage such as leakage risk.
Claims (4)
1. A connection node of a heat exchanger collecting pipe and an external pipeline is provided with the collecting pipe and the external pipeline, the collecting pipe is provided with a medium inlet and a medium outlet, it is characterized in that a pressure plate is arranged between the medium inlet and the medium outlet of the collecting pipe and the external pipeline, the lower end of the pressure plate is provided with an arc-shaped groove matched with the outer wall of the collecting pipe, the middle part of the pressure plate is provided with a pressure plate hole for inserting an external pipeline, the pressure plate at the lower end of the pressure plate hole is provided with a pressure plate counter bore with the diameter larger than that of the pressure plate hole, the lower end of the external pipeline extends into the pressure plate hole and the pressure plate counter bore in sequence, the outer wall of the external pipeline extending into the pressure plate counter bore is sleeved with a welding ring, the lower end of the external pipeline sleeved with the welding ring is turned outwards to seal the welding ring in the pressure plate counter bore, an arc-shaped groove at the lower end of the pressure plate is connected with the collecting pipe through brazing, the welding ring is melted while the brazing welding is carried out, so that the melted welding ring is filled between the counter bore of the pressing plate and the external pipeline to realize further sealing.
2. The heat exchanger collecting pipe and external pipe connection node according to claim 1, wherein the external diameter of the external pipe is the same as the diameter of a pressing plate hole on the pressing plate, so as to prevent the external pipe from shaking with the pressing plate hole and affecting the connection stability between the welding ring and the pressing plate and the external pipe.
3. The heat exchanger manifold and external pipe connection node according to claim 1, wherein the external pipe lower end is folded outward to form a rivet structure, and the weld ring is tightly sealed between the external pipe and the press plate counter bore.
4. The heat exchanger manifold and external pipe connection node according to claim 1, wherein said pressure plate is an aluminum pressure plate and said weld ring is an aluminum weld ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921388883.2U CN210426236U (en) | 2019-08-26 | 2019-08-26 | Connecting node of heat exchanger collecting pipe and external pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921388883.2U CN210426236U (en) | 2019-08-26 | 2019-08-26 | Connecting node of heat exchanger collecting pipe and external pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210426236U true CN210426236U (en) | 2020-04-28 |
Family
ID=70364289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921388883.2U Active CN210426236U (en) | 2019-08-26 | 2019-08-26 | Connecting node of heat exchanger collecting pipe and external pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210426236U (en) |
-
2019
- 2019-08-26 CN CN201921388883.2U patent/CN210426236U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A connection node between collector tube and external pipeline of heat exchanger Effective date of registration: 20210625 Granted publication date: 20200428 Pledgee: Weihai Branch of Industrial Bank Co.,Ltd. Pledgor: WEIHAI BANGDE COOLING SYSTEM Co.,Ltd. Registration number: Y2021980005325 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220228 Granted publication date: 20200428 Pledgee: Weihai Branch of Industrial Bank Co.,Ltd. Pledgor: WEIHAI BANGDE COOLING SYSTEM CO.,LTD. Registration number: Y2021980005325 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |