A piping assembly for plate heat exchangers

Abstract

The utility model discloses a kind of pipeline components for plate heat exchanger, including pipe body and the connecting head connected therewith;Connecting head includes inlet pipe, connecting pipe and outlet pipe connected in sequence, the diameter of connecting pipe gradually decreases from inlet pipe to outlet pipe direction, forming tapered runner;Connecting pipe and outlet pipe outer wall form mounting groove, limit installation part is equipped in groove, and limit ring is equipped in pipe body end part to limit limit installation part limit.The utility model passes through the tapered runner design of connecting head, makes fluid section area smooth transition, effectively reduces the local resistance loss and turbulence caused by runner mutation, to reduce system energy consumption, and inhibit pipeline vibration and noise.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and in particular relates to a piping assembly for a plate heat exchanger. Background Technology

[0002] Plate heat exchangers are high-efficiency, compact heat exchange devices widely used in HVAC, chemical, power, food, and pharmaceutical industries. Their working principle involves a series of corrugated plates forming fluid channels, allowing hot and cold media to flow in opposite directions within adjacent channels, exchanging heat through the plates. Piping assemblies, as key connecting components for the inflow and outflow of media in plate heat exchangers, directly affect the overall efficiency, stability, and reliability of the heat exchanger. In existing technologies, when fluid flows from the flange into the pipe body, the abrupt change in the cross-sectional area of ​​the flow channel leads to significant local resistance losses and turbulence, which not only increases system energy consumption but also easily causes pipe vibration and noise. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and to provide a piping assembly for plate heat exchangers, which achieves a smooth transition of fluid cross-sectional area by optimizing the flow channel structure.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A piping assembly for a plate heat exchanger includes a pipe body, one end of which is connected to a connector. The connector includes an inlet pipe, a connecting pipe, and an outlet pipe connected in sequence. The outlet pipe is connected to the pipe body. The diameter of the connecting pipe gradually decreases from the inlet pipe to the outlet pipe. The connecting pipe and the outer wall of the outlet pipe form an installation groove, and a limiting installation part is provided in the installation groove.

[0005] Furthermore, the outlet pipe is inserted into the tube body, and the outer wall of the outlet pipe is connected to the inner wall of the tube body.

[0006] Furthermore, a limit block is provided on the outer side of the limit installation part.

[0007] Furthermore, a limiting groove is provided on the outer side of the limiting installation part.

[0008] Furthermore, a limiting ring is provided at the end of the pipe body, which limits the limiting installation part.

[0009] Furthermore, the end of the inlet pipe that is furthest from the connecting pipe gradually narrows.

[0010] Furthermore, the end of the inlet pipe furthest from the connecting pipe protrudes inward to form a platform.

[0011] Furthermore, the other end of the tube protrudes outward to form a convex ring.

[0012] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects: 1. In this utility model, by setting a connecting pipe with a gradually decreasing diameter, a smoothly transitioning tapered flow channel is formed, which allows the fluid to be smoothly accelerated when flowing from the inlet pipe to the outlet pipe, effectively avoiding streamline separation and violent eddy phenomena caused by abrupt changes in the cross-sectional area of ​​the flow channel. 2. In this utility model, a limiting installation part is provided in the installation groove formed by the outer wall of the connecting pipe and the outlet pipe. In conjunction with the limiting ring at the end of the pipe body, the pipe body is accurately positioned and reliably fixed and installed through the connector. 3. In this utility model, the shrinkage design of the inlet pipe port and the inward protruding platform facilitate docking with other pipes, while the convex ring provides additional connection support and anti-detachment function. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a front view schematic diagram of a piping assembly for a plate heat exchanger according to the present invention; Figure 2 This is a front cross-sectional view of a piping assembly for a plate heat exchanger according to the present invention. Figure 3 This is a three-dimensional schematic diagram of a piping assembly for a plate heat exchanger according to the present invention. Figure 4 This is a three-dimensional schematic diagram of a piping assembly for a plate heat exchanger according to the present invention. Figure 5 This is a three-dimensional schematic diagram of a piping assembly for a plate heat exchanger according to the present invention.

[0014] In the diagram: 1-pipe body; 2-connector; 21-inlet pipe; 22-connecting pipe; 23-outlet pipe; 3-installation groove; 4-limiting installation part; 5-limiting block; 6-limiting groove; 7-limiting ring; 8-platform; 9-convex ring. Detailed Implementation

[0015] Example 1: like Figures 1 to 2 As shown, the present invention provides a piping assembly for a plate heat exchanger, including a pipe body 1, the overall structure of which is a straight pipe.

[0016] A connector 2 is fixedly connected to one end of the pipe body 1. The connector 2 is composed of an inlet pipe 21, a connecting pipe 22, and an outlet pipe 23 connected in sequence. The outlet pipe 23 is directly connected to the pipe body 1. The diameter of the connecting pipe 22 gradually decreases from the inlet pipe 21 to the outlet pipe 23, forming a tapered transition section. That is, the diameter of the outlet pipe 23 is designed to be smaller than the diameter of the inlet pipe 21.

[0017] The connector 2 is integrally formed by forging or precision casting to ensure a smooth transition of the inner wall between the inlet pipe 21, the connecting pipe 22 and the outlet pipe 23, without weld seams or steps, thus ensuring optimal fluid flow performance.

[0018] An annular mounting groove 3 is formed on the outside of the connecting pipe 22 and the outlet pipe 23. A limiting mounting part 4 is installed in the mounting groove 3 to realize the connection between the pipe body 1 and the external equipment.

[0019] The specific installation method of the outlet pipe 23 and the pipe body 1 is as follows: the end of the outlet pipe 23 is inserted into the inside of the pipe body 1, so that the outer wall of the outlet pipe 23 is tightly connected with the inner wall of the pipe body 1 to ensure the stability and sealing of the connection; the outlet pipe 23 and the pipe body 1 are sealed by strength welding (such as argon arc welding) to ensure the connection strength and prevent leakage.

[0020] Limiting blocks 5 are provided on both sides of the limiting mounting part 4, and limiting grooves 6 are provided. These structures are used to achieve precise positioning and fixation of the tube body 1 and other components. A limiting ring 7 is provided on the outer side of the end of the tube body 1. The limiting ring 7 cooperates with the limiting mounting part 4 to prevent the limiting mounting part 4 from loosening or shifting.

[0021] The port of the inlet pipe 21 is designed to taper gradually, and the end face of the inlet pipe 21 protrudes inward to form a platform 8, which facilitates docking with other pipes. The other end of the pipe body 1 protrudes outward to form a convex ring 9, which provides additional support and anti-detachment function when connected to external pipes.

[0022] The gradually narrowing flow channel formed by the connecting pipe 22 achieves the optimization of fluid dynamics. When the fluid enters from the inlet pipe 21, its flow channel cross-sectional area is larger than that of the outlet pipe 23 and the pipe body 1. Guided by the smooth conical surface of the connecting pipe 22, the fluid is smoothly accelerated and the flow velocity gradually increases. The pressure can be effectively converted into kinetic energy. This gradual process avoids streamline separation and violent eddy current phenomena caused by sudden contraction, reduces local resistance, and at the same time, the stabilization of the flow fundamentally suppresses the vibration and noise of the pipeline system.

[0023] Example 2: like Figures 3 to 5 As shown, the main difference between this embodiment and Embodiment 1 is that the overall structure of the pipe body 1 is composed of several straight pipes connected to each other, so that the overall structure of the pipe body 1 is a bent pipe, which is used to adapt to complex installation spaces.

[0024] Meanwhile, the two ends of the tube body 1 are respectively connected to connectors 2 and protruding rings 9.

[0025] In this embodiment of the bend, since the fluid itself experiences secondary flow and additional energy loss at the bend due to the change in flow direction, applying the connector 2 of this invention to the end of the bend significantly reduces local resistance. It effectively compensates for the pressure loss caused by the bend, maintaining a low overall pressure drop in the piping system, which is significant for improving the energy efficiency ratio of the entire plate heat exchanger unit.

[0026] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A piping assembly for a plate heat exchanger, comprising a pipe body, characterized in that: One end of the pipe body is connected to a connector, which includes an inlet pipe, a connecting pipe, and an outlet pipe connected in sequence. The outlet pipe is connected to the pipe body. The diameter of the connecting pipe gradually decreases from the inlet pipe to the outlet pipe. The connecting pipe and the outer wall of the outlet pipe form an installation groove, and a limiting installation part is provided in the installation groove.

2. The piping assembly for a plate heat exchanger according to claim 1, characterized in that: The outlet pipe is inserted into the tube body, and the outer wall of the outlet pipe is connected to the inner wall of the tube body.

3. A piping assembly for a plate heat exchanger according to claim 1, characterized in that: A limiting block is provided on the outside of the limiting installation part.

4. A piping assembly for a plate heat exchanger according to claim 1, characterized in that: The limiting installation part is provided with a limiting groove on the outside.

5. A piping assembly for a plate heat exchanger according to claim 1, characterized in that: The end of the tube is provided with a limiting ring, which limits the limiting installation part.

6. A piping assembly for a plate heat exchanger according to claim 1, characterized in that: The inlet pipe gradually narrows at the end furthest from the connecting pipe.

7. A piping assembly for a plate heat exchanger according to claim 1, characterized in that: The end of the inlet pipe away from the connecting pipe protrudes inward to form a platform.

8. A piping assembly for a plate heat exchanger according to claim 1, characterized in that: The other end of the tube protrudes outward to form a convex ring.

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