Reinforcing plate of capillary tube heat exchanger

By using a segmented reinforcing plate structure and connector design, the problem of inconvenient maintenance of traditional capillary heat exchangers is solved, enabling selective disassembly and rapid installation, reducing maintenance costs and resource waste, and improving service life.

CN224175730UActive Publication Date: 2026-04-28YANGZHOU RUIYUN PRECISION MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU RUIYUN PRECISION MACHINERY CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The reinforcing plate design of traditional capillary heat exchangers makes maintenance inconvenient, requiring the entire capillary bundle to be disassembled and replaced, which increases maintenance costs and wastes resources.

Method used

A segmented reinforcing plate structure consisting of a mother plate and a daughter plate is designed. Through the cooperation of sliding slots, snap-fit ​​slots, plug-in plates and buckles, quick fixing and disassembly can be achieved. The connectors are reinforced with telescopic rods and plug-in posts to enhance the connection strength and adapt to different tube bundle lengths.

Benefits of technology

It enables selective disassembly and repair of damaged capillary tubes, reducing maintenance costs, increasing service life and ease of installation, and reducing resource waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of heat exchanger reinforcing plates, in particular to a capillary tube heat exchanger reinforcing plate which comprises two mother plates, sliding inserting grooves are formed in the two side edges of the two mother plates, clamping grooves are formed in the positions, corresponding to the two sliding inserting grooves, of the outer walls of the mother plates in a penetrating mode, and clamping grooves are formed in the outer walls of the mother plates in a penetrating mode. A plurality of capillary tube bodies are fixed on the surfaces of the two mother plates in a penetrating manner; the number of the daughter boards is two. According to the capillary tube type heat exchanger, the complete circular reinforcing plate is divided into the four fan-shaped pieces, namely the two mother plates and the two sub-plates, so that the damaged capillary tube body can be selectively disassembled and replaced during maintenance, the maintenance cost of the capillary tube type heat exchanger is reduced, the service life of the capillary tube type heat exchanger is prolonged, and waste of heat exchanger resources is reduced. Through cooperative arrangement of the sliding slot, the clamping slot, the plug board and the buckle, rapid fixation and disassembly of the mother board and the daughter board are realized, the convenience of installation and disassembly is improved, and the installation difficulty is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of heat exchanger reinforcing plates, specifically a capillary heat exchanger reinforcing plate. Background Technology

[0002] A capillary heat exchanger is a highly efficient and compact heat exchange device. Based on the principle of indirect heat exchange, two fluids at different temperatures flow in the tube side and shell side of the heat exchanger, respectively, and exchange heat through the capillary wall, thereby achieving the heating or cooling of the fluids. A capillary heat exchanger is usually made of manifolds and capillary branches welded together using specific welding techniques. The capillary tubes are evenly arranged and fixed by braided plastic clips to form a grid.

[0003] The reinforcing plate (or support plate, partition plate) in a capillary heat exchanger is an important structural component, mainly used to support and fix the capillary bundle, ensuring that the capillary remains stable during fluid flow and preventing deformation, vibration or damage. In traditional capillary heat exchangers, the reinforcing plate is mostly designed as an integral structure, such as a circular plate connected to the capillary bundle. However, this design means that when some capillary tubes inside the heat exchanger are damaged, the entire capillary bundle and reinforcing plate and other components need to be removed and replaced, which is inconvenient for maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a reinforcing plate for a capillary heat exchanger to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A capillary heat exchanger reinforcing plate, comprising:

[0007] There are two mother plates. Each of the two mother plates has a sliding slot on its two sides. The outer wall of each mother plate has a snap-fit ​​groove at the position corresponding to the two sliding slots. Several capillary bodies are fixed through the surface of each of the two mother plates.

[0008] There are two sub-plates. Each sub-plate has a plug-in plate on both sides. The size of the plug-in plate matches the size of the sliding slot. Each plug-in plate has an installation groove inside. Two buckles are symmetrically arranged in the installation groove. A spring is fixedly connected between the two buckles. Several capillary bodies are fixedly inserted through the surface of each sub-plate.

[0009] There are four connectors to help fix the mother board and daughter board.

[0010] Furthermore, both the mother plate and the daughter plate have drainage grooves on their outer arc surfaces.

[0011] Furthermore, the outer arc surfaces of the mother plate are symmetrically and fixedly connected by two connecting rings.

[0012] Furthermore, the outer arc surfaces of the sub-plate are symmetrically and fixedly connected by two connecting rings.

[0013] Furthermore, the connector includes:

[0014] Telescopic pole;

[0015] There are two connecting plates, which are fixedly connected to both ends of the telescopic rod respectively;

[0016] There are four plug-in pins, which are fixedly connected to two connecting plates respectively. The size of the plug-in pins matches the size of connecting ring one and connecting ring two.

[0017] Furthermore, the telescopic rod includes an outer tube, with inner rods slidably inserted into both ends of the outer tube. Threaded holes I are provided on the outer wall of the outer tube near both ends, and several threaded holes II are provided at equal intervals on the outer walls of the two inner rods.

[0018] Furthermore, the end of the insertion post is fixedly connected with a locking sleeve.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By dividing a complete circular reinforcing plate into four sector-shaped parts, namely two mother plates and two daughter plates, the damaged capillary body can be selectively disassembled and replaced during maintenance, which reduces the maintenance cost of capillary heat exchangers, increases their service life, and thus reduces the waste of heat exchanger resources.

[0021] 2. Through the coordinated design of sliding slots, snap-fit ​​slots, plug-in plates, and snap-fits, the motherboard and daughterboard can be quickly fixed and disassembled, improving the convenience of installation and disassembly and reducing the difficulty of installation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a capillary heat exchanger reinforcing plate according to the present invention;

[0023] Figure 2 This is a schematic diagram of the mother plate structure in this utility model;

[0024] Figure 3 This is a schematic diagram of the neutron plate structure of this utility model;

[0025] Figure 4 This is a partial cross-sectional structural diagram of the neutron plate of this utility model;

[0026] Figure 5This is a schematic diagram of the connecting component structure in this utility model;

[0027] Figure 6 This is a schematic diagram of the plug-in post structure in this utility model.

[0028] In the diagram: 100, mother plate; 110, sliding slot; 120, snap-fit ​​groove; 130, connecting ring one; 200, daughter plate; 210, plug-in plate; 220, snap-fit; 221, spring; 230, connecting ring two; 300, connector; 310, telescopic rod; 311, outer sleeve; 312, inner rod; 313, threaded hole one; 314, threaded hole two; 320, connecting plate; 330, plug-in post; 331, snap-fit ​​sleeve; 400, capillary body. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example

[0031] Please see Figure 1-6 In this embodiment of the present invention, a capillary heat exchanger reinforcing plate includes a mother plate 100, a daughter plate 200, and a connector 300. Two mother plates 100 and two daughter plates 200 are provided. Each mother plate 100 has a sliding slot 110 on each of its two sides. A snap-fit ​​groove 120 is provided through the outer wall of each mother plate 100 at a position corresponding to the two sliding slots 110. Each daughter plate 200 has a plug-in plate 210 on each of its two sides. The size of the plug-in plate 210 matches the size of the sliding slot 110. Each plug-in plate 210 has an installation groove inside, and two snap fasteners 220 are symmetrically arranged within the installation grooves, securing the two snap fasteners together. A spring 221 is connected to the surface of the mother plate 100 and the daughter plate 200, and several capillary bodies 400 are fixed through the surface. The two mother plates 100 and the two daughter plates 200 are fan-shaped. The two mother plates 100 and the two daughter plates 200 are spliced ​​together to form a complete circular reinforcing plate. A set of circular reinforcing plates is provided at both ends of the capillary bundle of the heat exchanger. Four connectors 300 are provided to help fix the mother plate 100 and the daughter plate 200 and reduce the shaking of the structure caused by fluid impact. The outer arc surface of the mother plate 100 and the daughter plate 200 are provided with flow channels to reduce fluid flow resistance, ensure uniform fluid distribution, and improve heat exchange efficiency.

[0032] Specifically, according to the design of the reinforcing plate, several capillary tube bodies 400 in the capillary heat exchanger are divided into four tube bundles. Two mother plates 100 are placed mirror-symmetrically, and the two plug-in plates 210 of the remaining two daughter plates 200 are respectively inserted into the sliding slots 110 on the two mother plates 100. The position of the latch 220 corresponds to the position of the snap-fit ​​groove 120. When the plug-in plate 210 is fully inserted into the sliding slot 110, the latch 220 will automatically spring into the snap-fit ​​groove 120, realizing the connection between the mother plate 100 and the daughter plate 200. The quick fixation of the 00 forms a complete circular reinforcing plate. When a part of the capillary body 400 has a problem and needs to be disassembled, gently press the two clips 220 inward to retract them into the mounting groove in the plug plate 210, and the sub-plate 200 can be pulled out from the mother plate 100. At this time, only the tube bundle with the problem can be taken out for maintenance or replacement, which greatly reduces the maintenance cost of the capillary heat exchanger, improves its service life, and reduces the waste of heat exchanger resources.

[0033] like Figure 2-3 and Figure 5-6 As shown, in this embodiment, the outer arc surface of the mother plate 100 is symmetrically and fixedly connected with two connecting rings 130, and the outer arc surface of the daughter plate 200 is symmetrically and fixedly connected with two connecting rings 230. The connector 300 includes a telescopic rod 310, and both ends of the telescopic rod 310 are fixedly connected with connecting plates 320. The outer walls of the two connecting plates 320 are detachably fixed with two plug-in pins 330 by quick-release screws. The size of the plug-in pins 330 matches the size of the connecting rings 130 and 230. The end of the plug-in pins 330 is fixedly connected with a snap-fit ​​sleeve 331.

[0034] In this embodiment, after merging the mother plate 100 and the daughter plate 200 to form a whole circular reinforcing plate, insert pins 330 are inserted into the connecting rings 130 and 230 located at both ends of the tube bundle on the reinforcing plate. During insertion, the locking sleeves 331 on the insert pins 330 at both ends are opposite to each other. When the insert pins 330 are inserted into the connecting rings 130 or 230, the arc-shaped locking sleeves 331 will cover the outer wall of the connecting rings 130 or 230. Subsequently, each circular reinforcing plate is equipped with four connecting plates 320, so that the insert pins 330 on the adjacent connecting rings 130 and 230 are fixedly connected to the same connecting plate 320, which enhances the connection strength between the mother plate 100 and the daughter plate 200. The two connecting plates 320 located at both ends are connected by telescopic rods 310, so that the two circular reinforcing plates are connected and form a whole with the capillary tube bundle, which enhances the stability of the heat exchanger.

[0035] like Figure 5As shown, in this embodiment, the telescopic rod 310 includes an outer tube 311, with inner rods 312 slidably inserted into both ends of the outer tube 311. Threaded holes 313 are provided on the outer wall of the outer tube 311 near both ends, and a plurality of threaded holes 314 are provided at equal intervals on the outer walls of the two inner rods 312.

[0036] In practice, the distance between the circular reinforcing plates at both ends of the capillary body 400 varies depending on the length of the capillary body 400. At this time, the inner rod 312 is pulled outward to adjust the length of the connector 300. After adjustment, the threaded hole 313 is aligned with the corresponding threaded hole 314, and then fixed by screws or fastening knobs, which enhances the applicability of the connector 300.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reinforcing plate for a capillary heat exchanger, characterized in that, include: There are two mother plates (100). Each mother plate (100) has a sliding slot (110) on both sides. The outer wall of the mother plate (100) is provided with a snap-fit ​​groove (120) at the position corresponding to the two sliding slots (110). Several capillary bodies (400) are fixed through the surface of each mother plate (100). There are two sub-plates (200). Each sub-plate (200) has a plug-in plate (210) on both sides. The size of the plug-in plate (210) matches the size of the sliding slot (110). The interior of each plug-in plate (210) has an installation groove. Two buckles (220) are symmetrically arranged in the installation groove. A spring (221) is fixedly connected between the two buckles (220). Several capillary bodies (400) are fixedly inserted through the surface of each sub-plate (200). There are four connectors (300) that can help fix the mother plate (100) and the daughter plate (200).

2. The capillary heat exchanger reinforcing plate according to claim 1, characterized in that, Both the outer arc surfaces of the mother plate (100) and the daughter plate (200) are provided with drainage grooves.

3. The capillary heat exchanger reinforcing plate according to claim 1, characterized in that, The outer arc surfaces of the mother plate (100) are symmetrically fixedly connected by two connecting rings (130).

4. The capillary heat exchanger reinforcing plate according to claim 1, characterized in that, The outer arc surfaces of the sub-plate (200) are symmetrically fixedly connected by two connecting rings (230).

5. The capillary heat exchanger reinforcing plate according to claim 1, characterized in that, The connector (300) includes: Telescopic pole (310); There are two connecting plates (320), which are fixedly connected to both ends of the telescopic rod (310); There are four plug-in pins (330), which are fixedly connected to two connecting plates (320) respectively. The size of the plug-in pins (330) matches the size of connecting ring one (130) and connecting ring two (230).

6. The capillary heat exchanger reinforcing plate according to claim 5, characterized in that, The telescopic rod (310) includes an outer tube (311), and inner rods (312) are slidably inserted into both ends of the outer tube (311). Threaded holes (313) are opened on the outer wall of the outer tube (311) near both ends. Several threaded holes (314) are opened at equal intervals on the outer wall of the two inner rods (312).

7. The capillary heat exchanger reinforcing plate according to claim 5, characterized in that, The end of the plug (330) is fixedly connected to a snap-fit ​​sleeve (331).